Frequency Response:

37Hz-40Khz +/- 3 db

Impedance:

4 Ohms nominal

Sensitivity:

88 db (1 Watt, 2.83 V @ 1 Meter)

Bass/Midrange Driver:

7" ScanSpeak paper Illuminator woofers are based on compact under-hung motor systems with large neodymium ring magnets. The patent pending motor offers a very long linear excursion together with a very high force factor. The top plate is shaped to “guide” the backside airflow around the motor and with the very open cast aluminum chassis design the driver is virtually free from compression.

Tweeter:

1 inch ScanSpeak features a 99% pure Beryllium dome diaphragm. The large roll surround and Beryllium dome diaphragm provide a flat frequency response to above 40KHz with outstanding off-axis dispersion and a silky-smooth sound.

ScanSpeak’s unique AirCirc Magnet System -- named for the way it optimizes air flow within the chamber –- rearranges the traditional magnet structure from a single magnet to an open magnetic circuit comprised of six separate neodymium slugs. This, in combination with the chamber, results in the elimination of the reflections and resonances that compromise the performance of traditional motors. 

The D3004-664000 gives engineers improved control over critical midrange performance, for superb vocal rendition and excellent imaging at all listening locations.

Crossover:

Series crossover without any capacitors or resistors in the circuit with the tweeter. Acoustic Reality Series Crossovers

Dimensions/Weight:

16H x 9W x 12D, 30 lbs (each)

Recommended Power:

30 - 150 Watts RMS, without clipping