Model Information

[Tranquility Bass]

DAL Millenium




The rectangular shape of most loudspeaker enclosures has become almost a ubiquitous industry standard. However, without means for reducing "edge-diffraction", such as the use of sound absorbing felt, etc. between drivers and adjacent edges (as on all DAL loudspeaker models), the frequency response of rectangular loudspeakers incurs a significant number of closely-spaced peaks and valleys. In addition to these frequency response anomalies, edge diffraction also creates time domain "smearing" that is often detected as an audible blurring of musical transients. (A few designers have attempted to mitigate the problem by rounding the edges of their rectangular enclosures but have not used an adequate radius, several inches being required, to achieve any meaningful improvement.)

Research at DAL during the past few years has yielded a unique loudspeaker enclosure having an "X-shaped" cross-section, as viewed from the front. Using a symmetrical, vertical array of drivers (W-M-T-M-W), with the tweeter located at the center of the "X", and the application of sound absorbing felt between the affected drivers and adjacent edges, the effects of edge-diffraction are reduced to virtually inaudible and unmeasurable levels. The "X-shaped" frontal cross-section of the enclosure also reduces the amplitude of side-lobes and improves the low-end bass response of the woofers by eliminating internal parallel walls.

As a consequence, the overall audible and measurable properties of DAL's new MILLENNIUM are truly exceptional. However, the complex shape of the MILLENNIUM enclosure adds a lot of manufacturing time and cost - resulting in a price that is above other DAL models of about the same size and weight. Is the improvement in performance worth the added cost? We believe that most audiophiles in search of truly accurate, state-of-the-art performance will find the suggested retail price of a pair of MILLENNIUM loudspeaker to be well below that of many competing loudspeakers possessing much inferior levels of performance at the same or a higher price.

Indeed, DAL sincerely believes that the MILLENNIUM is yet another example of real progress from a company devoted to achieving true musical accuracy. Why not visit your nearest DAL dealer and discover why so many audiophiles are now listening to our loudspeakers - the only ones with measured performance that confirms their unmatched musical accuracy.



 

AMPLITUDE/FREQUENCY RESPONSE:	20Hz to 20kHz; +/- 1 dB; -2 dB @ 17 Hz (anechoic).
EFFICIENCY:	Approximately 91 dB SPL at 1 meter for an input level of 2.83 Volts RMS
IMPEDANCE:	Nominal 4 ohms (min.=2.7 ohms; max.=6 ohms)
PULSE-COHERENCE:	Impulse response is equal to or better than most top-of-the-line CD players and Digital Processors.
RADIATION PATTERNS:	Precisely symmetrical in both horizontal and vertical planes
DIFFRACTION DISTORTION:	Virtually eliminated by the "X" shape of the enclosure (Pat. appl. for) and the use of efficient sound-absorbing material on all relevant surfaces (US Patent #4,167,985).
DRIVERS:	-Two 10" Woofers (cast basket, high damping rubber surround)           -Two 5" Mid-Bass (cast basket, high damping rubber surround)           -One 1" composite textile dome tweeter.
CROSSOVER AND INTERNAL WIRING:	First order design. Biwire, biamp capability. High voltage, metal film capacitors. Precision machined wound, heavy gauge, high purity copper coils. CAD designed Mil spec fiberglass PC boards utilizing high purity copper traces. Internal wiring via individually isolated ultra pure, proprietary copper cables.
RECOMMENDED AMPLIFIER POWER:	Minimum of 100 watts/channel, rated into 8 ohms
RECOMMENDED LISTENING DISTANCE AND ROOM SIZE:	10 to 12 feet, on axis, in a room not smaller than about 15 feet by 24 feet.

 

SIZE:	75" H x 30" W x 20" D
WEIGHT:	300 lbs. (each)
MATERIAL:	Laminated layers of veneered MDF, varying in thickness from 3/4" to over 2".
FINISH:	Standard: light or black Oak.           Optional: Rosewood, Cherry or Natural Cherry.
GRILL:	Frame: Acoustically inert MDF.           Cloth: Acoustically transparent black weave

Millennium Frequency Response






Millennium Impulse Response






Millennium Step Response






Millennium Spectral Time Delay Response






Millennium Impedance


 

[Tranquility Bass]