Product Information

[Tranquility Bass]

    (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.
     
     
       

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