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#33
Sovereign 2001 / Websites of Interest
October 29, 2023, 05:24:17 PM
https://classic-hifi.net/product/duntech-sovereign-2001/
https://web.archive.org/web/20040906211613/http://www.apogeespeakers.com/reviews/a_search_for_the_ultimate_speaker_bestofaudio.htm
https://web.archive.org/web/20040906211613/http://www.apogeespeakers.com/reviews/a_search_for_the_ultimate_speaker_bestofaudio.htm
#35
ULC Interconnects / Product Information
October 29, 2023, 04:41:09 PM
(from left to right: Z6, ULC Reference RCA, ULC RCA, ULC Balanced Reference)
Most audio system components, such as pre-amps, DAC’s, etc., are far from distortionless, regardless of their cost or level of design sophistication. In many instances, audible distortion can be traced to non-linear distortion products caused by load capacitance that adversely affects the transfer characteristics of the circuit. This problem is often encountered when the interconnect cable connecting a pre-amplifier to a power amplifier exhibits excessive capacitance (usually greater than 100 pico-Farads). Unfortunately, it tends to be a frequent occurrence with very high quality pre-amps that exhibit a high slew rate (a desirable property), but have a tendency to become unstable when feeding a capacitive load. But most interconnect cables exhibit nominal capacitance values that range from about 20 to more than 50 pico-Farads per foot. When this capacitance is considered in parallel with the input capacitance of typical power amplifiers, the total can easily exceed 100 pico-Farads for an interconnect cable only 1 meter in length; enough to become the source of audible distortion in many systems.
In addition to causing the production of non-linear distortion products (harmonic, I.M., and transient types), such excess capacitance can also result in a roll off of the amplitude response at high frequencies, resulting in a loss of definition and/or the blurring of complex musical transients.
Dunlavy Audio Labs ULC (Ultra Low Capacitance) Interconnect cables, with a nominal capacitance of a truly remarkable 8 pico-Farads per foot, ensures distortion free transmission for virtually all applications. This means that the signal remains virtually unchanged from one component to the next allowing the listener to hear the music with unparalleled clarity and resolution, even in extremely long runs.
With the amount of components in today’s high end audio/video systems, one shouldn’t have to worry about cables negatively affecting the signal. With Dunlavy Audio Labs ULC Interconnects, you don’t have to.
DAL ULC interconnect are available with standard RCA terminations, reference RCA terminations, and balanced (XLR) terminations.
Most audio system components, such as pre-amps, DAC’s, etc., are far from distortionless, regardless of their cost or level of design sophistication. In many instances, audible distortion can be traced to non-linear distortion products caused by load capacitance that adversely affects the transfer characteristics of the circuit. This problem is often encountered when the interconnect cable connecting a pre-amplifier to a power amplifier exhibits excessive capacitance (usually greater than 100 pico-Farads). Unfortunately, it tends to be a frequent occurrence with very high quality pre-amps that exhibit a high slew rate (a desirable property), but have a tendency to become unstable when feeding a capacitive load. But most interconnect cables exhibit nominal capacitance values that range from about 20 to more than 50 pico-Farads per foot. When this capacitance is considered in parallel with the input capacitance of typical power amplifiers, the total can easily exceed 100 pico-Farads for an interconnect cable only 1 meter in length; enough to become the source of audible distortion in many systems.
In addition to causing the production of non-linear distortion products (harmonic, I.M., and transient types), such excess capacitance can also result in a roll off of the amplitude response at high frequencies, resulting in a loss of definition and/or the blurring of complex musical transients.
Dunlavy Audio Labs ULC (Ultra Low Capacitance) Interconnect cables, with a nominal capacitance of a truly remarkable 8 pico-Farads per foot, ensures distortion free transmission for virtually all applications. This means that the signal remains virtually unchanged from one component to the next allowing the listener to hear the music with unparalleled clarity and resolution, even in extremely long runs.
With the amount of components in today’s high end audio/video systems, one shouldn’t have to worry about cables negatively affecting the signal. With Dunlavy Audio Labs ULC Interconnects, you don’t have to.
DAL ULC interconnect are available with standard RCA terminations, reference RCA terminations, and balanced (XLR) terminations.
| Electrical: | |
| Impedance: | 186 Ohms nominal |
| Resistance per foot (D.C.): | Less than 180 milli-Ohms for center conductor and less than 4 milli-Ohms for shield |
| Total loss for 3m length: | Immeasurable over the 20 Hz to 20 kHz range |
| Capacitance per foot: | 8 pico-Farads nominal |
| Inductance per foot: | 290 nano-Henrys nominal |
| Amplitude and Phase response: | Into an 10 K Ohm load, an 8 foot length of DAL ULC cable exhibits a drop of only 0.5 dB and a phase lag of only 30 degrees at 5 MHz (immeasurably flat from D.C. to 250 kHz) |
| Pulse-coherence factor: | Terminated in 10 K Ohms, an 3 meter length of DAL ULC interconnect will reproduce 1 MHz square waves and 1 micro-second wide pulses with an accuracy indistinguishable from the output of the signal generator |
| Velocity of Propagation: | Greater than 90%, relative to light in free space |
| Physical: | |
| Size: | 0.265 inches in diameter |
| Color: | Neutral tan |
| Lengths: | Standard: 1 meter; 2 meter; 3 meter; 7 meter |
| Optional Lengths: | Lengths from .5 meter to 30 meters + |
| Terminations: | ULC Standard: RCA ULC Reference: Neutrik RCA ULC Balanced Reference: Neutrik XLR |
| - All terminations are heavily gold plated. | |
| Inner and Outer Conductors: | Patented multi-strand ultra pure silver plated copper wiring |
#36
LCR Ultra / Product Information
October 29, 2023, 04:39:18 PM
Truly unique "LCR ULTRA" satisfies the need for an affordable loudspeaker cable with nearly ideal electrical properties, i.e., ultra-low loss, maximum bandwidth, pulse-perfect performance, etc.
Used within high quality audiophile systems, "LCR ULTRA" loudspeaker cables possess all the electrical properties required to ensure that no audible degradation of complex musical waveforms and transients can occur between the output terminals of a power-amp, and the input terminals of a loudspeaker.
Best of all, perhaps, its simple design and relatively low manufacturing cost result in a retail price that is well below that of most popular high-end audiophile loudspeaker cables.
And, unlike so many of today's expensive loudspeaker cables that exhibit questionable electrical attributes, DAL's "LCR ULTRA" cable was designed by a staff of highly competent engineers working in the exceptionally well-equipped laboratory facilities of Dunlavy Audio Labs.
Guaranteed Electrical Specifications
Series Resistance: less than 0.001 Ohms per foot.
Series Inductance: less than 0. 17 micro-Henrys per foot.
Parallel Capacitance: less than 20 pico-Farads per foot.
Attenuation: Virtually immeasurable at frequencies below 20 kHz, for a 20-ft. length terminated by a 4-Ohm resistive load.
Velocity of Propagation Factor: Greater than about 70% of the velocity of light in a vacuum.
Standard Lengths: 8, 12, 16, & 24 ft. (Other lengths are available by special order.)
End Connectors: Heavily gold-plated, large spades
Size: Approx. 0.75 in. wide by approx. 0.35 in. thick.
"LCR Ultra" Loudspeaker Cable is a Trademark of Dunlavy Audio Labs, Inc. (Patent Applied For)
#37
Z6 Cable / Product Information
October 29, 2023, 04:37:23 PM
(from left to right: Z6, ULC Reference RCA, ULC RCA, ULC Balanced Reference)
For many years, the design and performance of loudspeaker cables has been a subject shrouded in mystery. Comparison of cables, it seems, has been limited almost entirely to the vagaries of subjective evaluation. The extravagant and undocumented claims touted in almost all advertisements for cables has led sensible audiophiles to suspect that a substantial amount of snake-oil and buzzard-salve have been the key components of their "high-tech" designs. What has been lacking, but sorely needed, has been a sober approach based upon the application of sound engineering considerations and well known scientific principles.
Now, with the Z6, a cable exists that was designed according to sound engineering and scientific principles. It’s accurately documented performance properties are truly relevant to how the cable interacts with the loudspeaker and the power amplifier - essential to obtaining accurate, unaltered reproduction of the most complex musical transients. It is a cable with a difference that can be measured by credible objective comparisons with other cables, offering the potential for audible improvements in music and movie sountrack reproduction. The Z6 represents a real engineering advance at an affordable price. Compared to other loudspeaker cables selling for much more, the DAL Z6 is truly without peer in every performance category.
For example, most audiophiles are familiar with the need for carefully selecting a low-loss cable with an impedance that matches that of their television sets as a means of reducing picture blurring and ghosting. Unlike other loudspeaker cables, which exhibit impedances that range from 20 to over 100 Ohms, DAL Z6 exhibits an impedance of only 6 Ohms, insuring and excellent match to well-designed loudspeakers with average impedances ranging from 4 to 12 Ohms. As a consequence, Z6 loudspeaker cable eliminates almost all blurring and ringing of complex musical transients that other cables with much higher impedances cannot accurately reproduce.
Further, the extremely linear amplitude and phase response of the DAL Z6 insures perfect reproduction of even the most delicate and detailed nuances found in music, compared to even the most expensive cables which suffer typical losses exceeding 2-3 dB at only 20 kHz.
So forget all the subjective and fanciful claims of the competition, and recognize the distinct and real advantages that sound physics and proven scientific principles used in the design and manufacturing of the Z6 allow. It’s better because it is.
Dunlavy Audio Labs Z6 loudspeaker cable is a Stereophile "Recommended Component."
The DAL Z6 cable’s design is covered under United States patent #5,510,578 (April 23, 1996).
For many years, the design and performance of loudspeaker cables has been a subject shrouded in mystery. Comparison of cables, it seems, has been limited almost entirely to the vagaries of subjective evaluation. The extravagant and undocumented claims touted in almost all advertisements for cables has led sensible audiophiles to suspect that a substantial amount of snake-oil and buzzard-salve have been the key components of their "high-tech" designs. What has been lacking, but sorely needed, has been a sober approach based upon the application of sound engineering considerations and well known scientific principles.
Now, with the Z6, a cable exists that was designed according to sound engineering and scientific principles. It’s accurately documented performance properties are truly relevant to how the cable interacts with the loudspeaker and the power amplifier - essential to obtaining accurate, unaltered reproduction of the most complex musical transients. It is a cable with a difference that can be measured by credible objective comparisons with other cables, offering the potential for audible improvements in music and movie sountrack reproduction. The Z6 represents a real engineering advance at an affordable price. Compared to other loudspeaker cables selling for much more, the DAL Z6 is truly without peer in every performance category.
For example, most audiophiles are familiar with the need for carefully selecting a low-loss cable with an impedance that matches that of their television sets as a means of reducing picture blurring and ghosting. Unlike other loudspeaker cables, which exhibit impedances that range from 20 to over 100 Ohms, DAL Z6 exhibits an impedance of only 6 Ohms, insuring and excellent match to well-designed loudspeakers with average impedances ranging from 4 to 12 Ohms. As a consequence, Z6 loudspeaker cable eliminates almost all blurring and ringing of complex musical transients that other cables with much higher impedances cannot accurately reproduce.
Further, the extremely linear amplitude and phase response of the DAL Z6 insures perfect reproduction of even the most delicate and detailed nuances found in music, compared to even the most expensive cables which suffer typical losses exceeding 2-3 dB at only 20 kHz.
So forget all the subjective and fanciful claims of the competition, and recognize the distinct and real advantages that sound physics and proven scientific principles used in the design and manufacturing of the Z6 allow. It’s better because it is.
Dunlavy Audio Labs Z6 loudspeaker cable is a Stereophile "Recommended Component."
The DAL Z6 cable’s design is covered under United States patent #5,510,578 (April 23, 1996).
| Electrical: | |
| Impedance: | 6 Ohms, nominal. |
| Resistance per foot (D.C.): | Less than 2.5 milli-Ohms |
| Total loss for 8ft. length: | Immeasurable over the 20 Hz to 20 kHz range into an 8 Ohm resistive load |
| Capacitance per foot: | 340 pico-Farads |
| Inductance per foot: | 21.8 nano-Henrys |
| Amplitude and Phase response: | Into an 8 Ohm load, an 8 foot length of Z6 cable exhibits a drop of only 0.5 dB and a phase lag of only 30 degrees at 5 MHz (immeasurably flat from D.C. to 250 kHz) |
| Pulse-coherence factor: | Terminated in 8 Ohms, an 8 foot length of DAL Z6 cable will reproduce square waves up to 1 MHz with an accuracy indistinguishable from the output of the signal generator |
| Physical: | |
| Size: | 0.5 inches in diameter |
| Color: | Neutral tan |
| Lengths: | Standard: 8 foot; 12 foot; 16 foot; 24 foot singles and pairs |
| Optional Lengths: | Lengths from 6 inches to 100 feet |
| Terminations: | BN4: Banana pin GS4: 1/4 inch spade GGS4: 3/8 inch spade |
| - All terminations are heavily gold plated in six inch lengths. Terminations employ unique threaded bolt application system for easy end user installation. | |
| Internal Wiring: | Patented multi-strand high purity silver plated copper wiring. (US Patent # - 5,510,578; 4/23/96) |
#38
PCL25 / Model Information
October 29, 2023, 03:46:57 PM
Duntech PCL25
 The DUNTECH PCL25 Loudspeaker has been designed for the discerning listener who demands very accurate sound reproduction from a small package. And at an affordable price. The PCL25 is faithful to the design philosophies that encompass all DUNTECH loudspeakers, and for which Duntech Audio has received international acclaim. The technology is further enhanced by hand-crafted cabinets, which are finished in authentic timber veneer with acoustically transparent black grille cloth. What makes the PCL25 better? The DUNTECH PCL25 Loudspeaker is a two way, three driver design in which the drivers are arranged in a symmetrical fashion along a vertical axis. This creates a simulated point-source radiation pattern. To achieve proper stereo-imaging and depth, loudspeakers must possess point-source radiation patterns when reproducing music recorded by microphones, which are themselves point-source devices. Music as is should be heard The sound from the PCL25 will arrive at your ears simultaneously. It will be low in distortion and sound extremely well-focussed, giving an almost transparent quality. So, the music you hear will create the feeling of "being there", as if your were hearing it played "live". This is the ultimate benefit of DUNTECH pulse coherent technology... excellent stereo-imaging, depth and clarity. And, when you consider the price of the PCL25 and the inclusion of a 5 year warranty, it all adds up to a remarkable loudspeaker package.   Time-aligned for greater music accuracy The three drivers in the PCL25 are accurately time-aligned. This means the radiating centres of the drivers are exactly equidistant at the normal listening distance of 3.5 metres. Accurate time-alignment of the drivers is one of a number of design features that Duntech has collectively labelled "pulse-coherent". Pulse coherency determines the ability of a loudspeaker to reproduce complex musical sounds without blurring or smearing. It allows a loudspeaker to faithfully reproduce sound as it is heard naturally by the human ear. |
| Electrical | |
| Frequency Response Measured at 3.5M (11.5ft) on the tweeter axis | 55Hz-20KHz ±3dB |
| Efficiency Referenced at 1M (3.3 ft) on tweeter axis with an input of 2.83 volts RMS (1 watt at 8 ohms) | 89dB SPL |
| Nominal Impedance | 4 ohms Variance 3.5-6.5 |
| Power Rating Peak power for 10 µS | 500 watts |
| Recommended Amplifier Power Minimum RMS per channel | 30 watts |
| Pulse Coherency Factor Propagation time error at 3.5M (11.5 ft) on the tweeter axis | Less than 10µS |
| Harmonic Distortion Referenced at 1M (3.3 ft) on the tweeter axis with an input of 2.83 volts RMS (1 watt at 8 ohms) | Less than 0.5% THD above 100Hz |
| Phase Variation versus Frequency Varies less that ±35 deg | 150Hz to 15Khz |
| Crossover | First order type |
| Drivers Bass Tweeter | 2x160mm (6.3") 1x25mm (1") |
| Input Terminals | Gold plated, accepts bonana, spade or cable connections |
| Bi-Wiring | Yes |
| Passive Bi-Amplification | Yes |
| Footnote: All measurements taken at ambient temperature of 23°C (72°F) | |
| Mechanical | |
| Finish | Available in Jarrah, Brazilian Rosewood and Black Oak. |
| Size Height Width Depth | 606mm (24") 268mm (11") 350mm (14") |
| Weight Per cabinet unpacked | 20Kg (44lbs) |
| Warranty | Five (5) years, subject to Duntech Audio Warranty Policy |
| Stand | Optional |
#39
PCL10 / Model Information
October 29, 2023, 03:44:49 PM
Duntech PCL10
Price / Performance Breakthrough
The new DUNTECH PCL10 Loudspeaker has been designed to delight music lovers who are on a tight budget or have small listening rooms.
Faithful to DUNTECH design philosophy that has produced products which have won international acclaim, the PCL10 proudly carries DUNTECH quality to its least expensive price point.
The diminutive PCL10 was engineered without compromise to possess all of the characteristics of true DUNTECH 'pulse coherent' loudspeakers - musicality, transient precision and accuracy - all necessary features of a live performance.
Big Sound from a Small Speaker
The PCL10 delivers a sense of scale that is truly amazing for such a small loudspeaker. Even large symphonic works are rendered realistically in space. Exceptionally even tonal balance and a very high resolving power are features of this very revealing loudspeaker.
Finished in stunning Australian Jarrah veneer, the PCL10 will find appeal as an audiophile quality loudspeaker in its own right for both home and professional use.
The PCL10 Loudspeaker is a proud addition to the DUNTECH family of products that are distinguished by a level of documented performance which clearly demonstrates their superiority.
What Makes the PCL10 so Special?
The choice of the very latest technology drive units and first order crossover result in near perfect amplitude and phase response.
Amplitude response is very flat at ą dB from 80Hz to 20kHz, with useful extension below 60Hz (-3dB at 70Hz).
Sensitivity of 85dB and impedance at a well behaved 6 ensures this speaker can be used with a wide range of amplifiers.
Price / Performance Breakthrough
The new DUNTECH PCL10 Loudspeaker has been designed to delight music lovers who are on a tight budget or have small listening rooms.
Faithful to DUNTECH design philosophy that has produced products which have won international acclaim, the PCL10 proudly carries DUNTECH quality to its least expensive price point.
The diminutive PCL10 was engineered without compromise to possess all of the characteristics of true DUNTECH 'pulse coherent' loudspeakers - musicality, transient precision and accuracy - all necessary features of a live performance.
Big Sound from a Small Speaker
The PCL10 delivers a sense of scale that is truly amazing for such a small loudspeaker. Even large symphonic works are rendered realistically in space. Exceptionally even tonal balance and a very high resolving power are features of this very revealing loudspeaker.
Finished in stunning Australian Jarrah veneer, the PCL10 will find appeal as an audiophile quality loudspeaker in its own right for both home and professional use.
The PCL10 Loudspeaker is a proud addition to the DUNTECH family of products that are distinguished by a level of documented performance which clearly demonstrates their superiority.
What Makes the PCL10 so Special?
The choice of the very latest technology drive units and first order crossover result in near perfect amplitude and phase response.
Amplitude response is very flat at ą dB from 80Hz to 20kHz, with useful extension below 60Hz (-3dB at 70Hz).
Sensitivity of 85dB and impedance at a well behaved 6 ensures this speaker can be used with a wide range of amplifiers.
| Electrical | |
| Frequency Response Measured at 3.5M (11.5ft) on the tweeter axis | 80Hz-20kHz ą 2dB - 3db down 70Hz |
| Efficiency Referenced at 1M (3.3 ft) on tweeter axis with an input of 2.83 volts RMS (1 watt at 8 ohms) | 85dB SPL |
| Nominal Impedance | 6 ohms |
| Power Rating Peak power for 10 ľS | 200 watts |
| Recommended Amplifier Power Minimum RMS per channel | 60 watts |
| Pulse Coherency Factor Propagation time error at 3.5M (11.5 ft) on the tweeter axis | Less than 10ľS |
| Phase Variation versus Frequency Varies less that ą35 deg | 150Hz to 15kHz Varies less than ą20° |
| Crossover | First order type |
| Drivers Bass Tweeter | 1x110mm (4.3") 1x10mm (.8") |
| Input Terminals | Gold plated, accepts bonana, spade or cable connections |
| Bi-Wiring | Yes |
| Passive Bi-Amplification | Yes |
| Mechanical | |
| Finish | Available in Jarrah, Brazilian Rosewood and Black Oak. |
| Size Height Width Depth | 275mm (11") 170mm 6.8") 226mm (9") |
| Placement | Tripod, shelf or stand - 35mm camera tripod fitting standard Wall mount bracket optional extra |
| Warranty | Five (5) years, subject to Duntech Audio Warranty Policy and return of Warranty Registration Form |
| Stand | Optional |
#40
Ruby / Model Information
October 29, 2023, 03:43:46 PM
Duntech Ruby
The Ruby is an amazingly powerful speaker despite it's compact size. The sound is full and detailed and combined with handcrafted cabinets made from the finest Australian and imported timbers this loudspeaker will appeal to many. Every component used in the construction is tested and ensured of meeting the quality required before being applied. The Ruby is well named as being a precious gem and will provide an insight to many new facets of your favourite music.
The Ruby is a two driver two way design using a Damped Polymer Composite (DPC) magnetically shielded driver. This driver uses a low loss rubber surround to eliminate the possibility of deterioration over time. The drivers, including the tweeter, utilise Hexatech Aluminium wire voice coils wound on Aluminium formers, this provides superior power handling and eliminates dynamic compression due to heating. The Bass/midrange driver has a huge 75mm voice coil which evenly drives the shallow profile cone, reducing cone break up and reducing distortion at high power levels. The tweeter is treated with diffraction controlling felt and is positioned to be time collimated with the bass driver. The cabinet itself is constructed of MDF (medium density fibre) up to a thickness of 40mm. Hardened steel spikes are also provided with every loudspeaker which are secured to the cabinet by means of integral steel threaded inserts. The Ruby is wired internally with heavy gauge low loss silver plated cable and provided with high quality gold plated terminals.
The Ruby is an amazingly powerful speaker despite it's compact size. The sound is full and detailed and combined with handcrafted cabinets made from the finest Australian and imported timbers this loudspeaker will appeal to many. Every component used in the construction is tested and ensured of meeting the quality required before being applied. The Ruby is well named as being a precious gem and will provide an insight to many new facets of your favourite music.
The Ruby is a two driver two way design using a Damped Polymer Composite (DPC) magnetically shielded driver. This driver uses a low loss rubber surround to eliminate the possibility of deterioration over time. The drivers, including the tweeter, utilise Hexatech Aluminium wire voice coils wound on Aluminium formers, this provides superior power handling and eliminates dynamic compression due to heating. The Bass/midrange driver has a huge 75mm voice coil which evenly drives the shallow profile cone, reducing cone break up and reducing distortion at high power levels. The tweeter is treated with diffraction controlling felt and is positioned to be time collimated with the bass driver. The cabinet itself is constructed of MDF (medium density fibre) up to a thickness of 40mm. Hardened steel spikes are also provided with every loudspeaker which are secured to the cabinet by means of integral steel threaded inserts. The Ruby is wired internally with heavy gauge low loss silver plated cable and provided with high quality gold plated terminals.
| Frequency Response | 40Hz - 18KHz ą 3dB |
| Efficiency | 86.5dB SPL |
| Impedence | 8 ohms Nominal |
| Recommended Amplifier Power | 30w RMS |
| Power Rating | 150 Watts 500 Watts peak power |
| Dimensions | 780mm High, 205mm Wide, 320mm Deep |
| Weight | 15kg |
| Finish | Australian Jarrah, Brazilian Rosewood, Black woodgrain. Other finishes available on request. |
#41
Opal / Model Information
October 29, 2023, 03:41:57 PM
Duntech Opal
The Opal, as a member of the Gemstone Series, features outstanding musical reproduction in the true Duntech tradition. The sound is both refined and powerful, reproducing the original performance as it was intended.
The beautifully handcrafted cabinets are constructed from the finest Australian and Imported timbers. The design employs simple yet stylish lines which belie the complex and advanced technology hidden within. Years of technical experience and dedication to the quality reproduction of music have culminated in the Gemstone Series. Like its namesake, the Opal is a unique and precious addition to the Series which we guarantee will deliver many years of listening pleasure.
A two way, three driver design in which the drivers are mounted in a symmetrical fashion along a vertical axis. Treated with diffraction controlling felt, the tweeter is time collimated. The crossover is a first order type to guarantee a smooth and flat phase and amplitude response. The upper bass driver is a sealed type which provides the tightest most transient bass response, while the lower driver incorporates a precision tuned dual reflex design to produce the most extended low frequency response from the slim line design. These two alignments combine to provide a very detailed and extended bass which maintains all of the detail and musicality of the lowest musical notes.
Heavy gauge low loss silver cable is used throughout the loudspeaker.
The Opal is provided with high quality gold plated dual terminals suitable for bi wiring or passive bi amplification.
The Opal, as a member of the Gemstone Series, features outstanding musical reproduction in the true Duntech tradition. The sound is both refined and powerful, reproducing the original performance as it was intended.
The beautifully handcrafted cabinets are constructed from the finest Australian and Imported timbers. The design employs simple yet stylish lines which belie the complex and advanced technology hidden within. Years of technical experience and dedication to the quality reproduction of music have culminated in the Gemstone Series. Like its namesake, the Opal is a unique and precious addition to the Series which we guarantee will deliver many years of listening pleasure.
A two way, three driver design in which the drivers are mounted in a symmetrical fashion along a vertical axis. Treated with diffraction controlling felt, the tweeter is time collimated. The crossover is a first order type to guarantee a smooth and flat phase and amplitude response. The upper bass driver is a sealed type which provides the tightest most transient bass response, while the lower driver incorporates a precision tuned dual reflex design to produce the most extended low frequency response from the slim line design. These two alignments combine to provide a very detailed and extended bass which maintains all of the detail and musicality of the lowest musical notes.
Heavy gauge low loss silver cable is used throughout the loudspeaker.
The Opal is provided with high quality gold plated dual terminals suitable for bi wiring or passive bi amplification.
| Frequency Response | 37Hz - 20KHz ą3dB |
| Efficiency | 89dB SPL |
| Impedence | 4 ohms Nominal |
| Recommended Amplifier Power | 30w (Transistor) |
| Power Rating | 500 w (Peak power for 10ľs) |
| Dimensions | 975mm High, 180mm Wide, 200mm Deep |
| Weight | 20kg |
| Finish | Jarrah, Brazilian Rosewood, Black Oak. Other finishes available on request. |
#42
Sapphire / Model Information
October 29, 2023, 03:40:37 PM
Duntech Saphire
The Sapphire is a highly refined loudspeaker providing fast clean bass with a pure and clean midrange. Several different design techniques are incorporated into a single unit to deliver what we believe is superior sound reproduction. Handcrafted cabinets made from the finest Australian and imported timbers house new and innovative design ideas. The slim lines of the Sapphire will appeal to many while the simple but elegant cabinet will fit both modern and traditional decors. Each Sapphire is made as a pair from start to finish, no"production line" techniques are employed in it's assembly. Every component is tested and ensured of meeting the quality required before being applied. The Sapphire is well named as being a timeless precious gem to be enjoyed for many years to come.
The Sapphire is a five driver two way design using Damped Polymer Composite (DPC) magnetically shielded drivers. These drivers use low loss rubber surrounds to eliminate the possibility of deterioration over time. The heart of the drivers, including the tweeter, utilise Hexatech Aluminium wire voice coils wound on Aluminium formers, this provides superior power handling and eliminates dynamic compression due to heating. The midrange drivers have a huge 75mm voice coil which evenly drives the shallow profile cone, reducing cone break up and reducing distortion at high power levels. The tweeter is a soft dome type incorporating low viscosity Ferrofluid cooling. The bass response of the Sapphire is fast and extended due the special loading techniques used for the four 160mm drivers. The upper pair of bass drivers are loaded using a sealed enclosure, this provides very fast, transient bass. The lower pair of drivers are loaded in their own enclosure by means of a carefully tuned quad reflex design. Four specially selected tuned resonant "ports" are carefully positioned in different areas in the cabinet to provide smooth and extended bass response to below 35Hz. The cabinet is heavily damped with acoustic absorbing materials placed with the aid of computer modelling for maximum effect. The cabinet is also extensively cross braced with individual wooden "bars". These are shaped to minimise the possibility of interaction with sound waves travelling inside the enclosure.
The cabinet itself is constructed of MDF (medium density fibre) up to a thickness of 40mm. Hardened steel spikes are also provided with every loudspeakers which are secured to the cabinet by means of integral steel threaded inserts. The loudspeaker is wired internally with heavy gauge low loss silver plated cable and provided with high quality gold plated dual terminals suitable for bi-wiring or passive bi-amplification.�
The Sapphire is a highly refined loudspeaker providing fast clean bass with a pure and clean midrange. Several different design techniques are incorporated into a single unit to deliver what we believe is superior sound reproduction. Handcrafted cabinets made from the finest Australian and imported timbers house new and innovative design ideas. The slim lines of the Sapphire will appeal to many while the simple but elegant cabinet will fit both modern and traditional decors. Each Sapphire is made as a pair from start to finish, no"production line" techniques are employed in it's assembly. Every component is tested and ensured of meeting the quality required before being applied. The Sapphire is well named as being a timeless precious gem to be enjoyed for many years to come.
The Sapphire is a five driver two way design using Damped Polymer Composite (DPC) magnetically shielded drivers. These drivers use low loss rubber surrounds to eliminate the possibility of deterioration over time. The heart of the drivers, including the tweeter, utilise Hexatech Aluminium wire voice coils wound on Aluminium formers, this provides superior power handling and eliminates dynamic compression due to heating. The midrange drivers have a huge 75mm voice coil which evenly drives the shallow profile cone, reducing cone break up and reducing distortion at high power levels. The tweeter is a soft dome type incorporating low viscosity Ferrofluid cooling. The bass response of the Sapphire is fast and extended due the special loading techniques used for the four 160mm drivers. The upper pair of bass drivers are loaded using a sealed enclosure, this provides very fast, transient bass. The lower pair of drivers are loaded in their own enclosure by means of a carefully tuned quad reflex design. Four specially selected tuned resonant "ports" are carefully positioned in different areas in the cabinet to provide smooth and extended bass response to below 35Hz. The cabinet is heavily damped with acoustic absorbing materials placed with the aid of computer modelling for maximum effect. The cabinet is also extensively cross braced with individual wooden "bars". These are shaped to minimise the possibility of interaction with sound waves travelling inside the enclosure.
The cabinet itself is constructed of MDF (medium density fibre) up to a thickness of 40mm. Hardened steel spikes are also provided with every loudspeakers which are secured to the cabinet by means of integral steel threaded inserts. The loudspeaker is wired internally with heavy gauge low loss silver plated cable and provided with high quality gold plated dual terminals suitable for bi-wiring or passive bi-amplification.�
| Frequency Response | 35Hz - 20KHz ±2.5dB |
| Efficiency | 90dB SPL |
| Impedence | 8 ohms Nominal |
| Recommended Amplifier Power | 50w RMS |
| Power Rating | 300 Watts 1000 Watts peak power |
| Dimensions | 1225mm High, 222mm Wide, 400mm Deep |
| Weight | 30kg |
| Finish | Jarrah, Brazilian Rosewood, Black Oak. Other finishes available on request. |
#43
Emerald / Model Information
October 29, 2023, 03:38:36 PM
Duntech Emerald
'Emerald' judged Loudspeaker of the Year 1998/99 !
Sound and Image Magazine
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'Emerald' judged Loudspeaker of the Year 1998/99 !
Sound and Image Magazine
 The Emerald is the flagship of the Gemstone Series. For the first time we have incorporated several different design techniques into a single unit which delivers what we believe is a new benchmark in quality sound reproduction. Handcrafted cabinets made from the finest Australian and imported timbers house new and innovative design ideas. Each Emerald is made as a pair from start to finish, no "production line" techniques are employed in it's assembly. Every component is tested and ensured of meeting the quality required before being applied. The sound qualities of the Emerald are apparent from the first audition. "Inspiring". "Awesome", "Delicate yet Powerful" are just some of the comments made by our critical listening panel when first hearing the speaker. Highs are crystal clear, the midrange is clean and very detailed and the bass powerful, extended and fast. We admit that the Emerald may not be for everyone. Everybody has their own likes and dislikes, but if you are looking for a high quality, high reliability, very carefully engineered loudspeaker from one of the best known and respected loudspeaker manufacturers then the Emerald may well be the speaker for you. Let your ears make the decision.  The Emerald is the culmination of over a year of research and design. It incorporates many technically excellent design principles, which are rarely brought together into a single design. The Emerald is a three way loudspeaker using Damped Polymer Composite (DPC) magnetically shielded drivers. These drivers use low loss rubber surrounds to eliminate the possibility of deterioration over time. The heart of the drivers, including the tweeter, utilise Hexatech Aluminium wire voice coils wound on Aluminium formers, this provides superior power handling and eliminates dynamic compression due to heating. The midrange drivers have a huge 75mm voice coil which evenly drives the shallow profile cone, reducing cone break up and reducing distortion at high power levels. The tweeter is a hand treated soft dome type which is driven by a large diameter voice coil, immersed in low viscosity Ferrofluid. It also incorporates three powerful magnets for high efficiency and to maintain linear response at all power levels. the bass response of the Emerald is powerful and extended due to the complex techniques used to load the two 220mm bass drivers. The upper bass unit is a sealed type providing very fast, transient bass response. The lower driver is loaded in it's own enclosure by means of a carefully tuned quad reflex design. Four specially selected tuned resonant "ports" are carefully positioned in the cabinet to provide smooth and extended bass response to below 30Hz. All of the drivers are mounted in their own separate enclosures to eliminate the possibility of driver interaction. The cabinet is heavily damped internally with acoustic absorbing materials placed with the aid of computer modelling for maximum effect. The cabinet is also extensively cross braced with individual wooden "bars". These are shaped to minimise the possibility of interaction with sound waves travellling inside the enclosure. Hardened steel spikes are also provided with every loudspeaker which are secured to the cabinet by means of integral steel threaded inserts. The loudspeaker is wired internally with heavy gauge low loss silver plated cable and provided with high quality gold plated dual terminals suitable for bi-wiring or passive bi-amplification.� |
| Frequency Response | 32Hz - 20KHz ± 2.5dB |
| Efficiency | 91.5dB SPL |
| Impedence | 4 ohms Nominal |
| Recommended Amplifier Power | 60w RMS |
| Power Rating | 300 Watts 1000 Watts peak power |
| Dimensions | 1440mm High, 290mm Wide, 460mm Deep |
| Weight | 44kg |
| Finish | Jarrah, Brazilian Rosewood, Black Oak. Other finishes available on request. |
#44
Black Pearl / Model Information
October 29, 2023, 03:36:35 PM
Duntech Black Pearl
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 Black Pearl Monitors - These little gems deliver truly awesome transparency and depth. A special feature of these monitors is the introduction of a 104mm rear firing tweeter which produces a reverberant field with excellent deep and solid soundstaging qualities, like that found in a real concert hall. The high complexity crossover achieves near perfect preservation of the shape of complex wave forms. This helps create a very accurate response through all frequencies. The front baffle houses a very powerful 160mm bass/midrange driver which is a feature throughout the Gemstone Range and a 94mm tweeter both delivering amazing clarity in the mid to upper ranges with astounding bass timbre. This three driver two way design is housed in a cabinet that is extensively braced internally up to a depth of 40mm, the cabinet is hand crafted in a high gloss finish of your choice. Very attractive acoustic stands complete the presentation of these handsome little gems. |
| Frequency Response | 43Hz - 20KHz ± 3dB |
| Efficiency | 89dB SPL |
| Impedence | 8 ohms Nominal |
| Recommended Amplifier Power | 30w (Transistor) |
| Power Rating | 500 Watts (Peak power for 10µs) |
| Dimensions | 395mm High, 215mm Wide, 315mm Deep |
| Weight | 10kg |
| Finish | Piano Gloss as Standard |
#45
Onyx / Model Information
October 29, 2023, 03:32:27 PM
Onyx
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| Onyx Centre Channel - The Onyx has been introduced to further enhance a two channel system and improve the quality of pure imaging and depth to a sound system, and is also a high quality addition to home theatre applications. Similar to the very popular Opal loudspeakers the Onyx is a two way, three driver design. Treated with diffraction controlling felt, the tweeter is time collimated. The crossover is a first order type which guarantees a smooth and flat phase and amplitude response. Two 160mm bass/midrange drivers ensure compatible and accurate sonic output from the high to very low frequencies. The Onyx cabinet finish is in standard texture black, or alternative timber veneer as an optional extra. |
| Frequency Response | 37Hz - 20KHz ± 3dB |
| Efficiency | 89dB SPL |
| Impedence | 8 ohms Nominal |
| Recommended Amplifier Power | 30w (Transistor) |
| Power Rating | 500 Watts (Peak power for 10µs) |
| Dimensions | 180mm High, 690mm Wide, 370mm Deep |
| Weight | 15kg |
| Finish | Jarrah, Brazilian Rosewood, Black Oak. Other finishes available on request |