Frequency Response 16Hz to 36kHz, +/- 3dB
Sensitivity 90 dB 1 watt 1 meter
Max/Min Tube Power 500/60 watts
Max/Min Solid State Power 1000/100 watts
Input Impedance 4 ohms (nominal)
HF Transducers Fifteen 1\" circular ribbon (12 front, 3 rear)
Midrange Transducers One 48\" ribbon
LF Transducers Eight 8\" ribbed-aluminum cone
Loudspeaker Controls Rear Tweeters (+/- 1 dB)
Upper Midrange contour (+/- 0.75 dB)
Servo-controlled Bass Amplifier Power Rating Bass Control Module: Gain / Low Pass / High Pass / Phase
Servo-Amplifier Module (two): 500W x 2
Power Supply Module: 1.8kVA
Dimensions
(System comprises four towers) Mid/Tweeter Panel: H 75\" x W 21\" x D 16\"
Woofer Tower: H 75\" x W 15\" x D 26\"
Servo-bass Amplifier Modules (each): H 3\" x W 17\" x D13\"