FTC Power Output
280 watts minimum sine wave continuous average power per channel with both channels driving 8 ohm loads. Maximum total harmonic distortion from 1 watt to 280 watts and from 20Hz to 20kHz is .03%.

450 watts minimum sine wave continuous average power per channel with both channels driving 4 ohm loads. Maximum total harmonic distortion from 1 watt 450 watts and from 20Hz to 20kHz is .06%.

900 watts minimum sine wave continuous average power into an 8 ohm load driven in bridged monoaural operation. Maximum total harmonic distortion from 2 watts to 900 watts and from 20Hz to 20kHz is .06%.

All measurements assume 120 VAC or equivalent supplied to the power cord.

IHF Dynamic Power Output
360 watts per channel with both channels driving 8 ohm loads.
650 watts per channel with both channels driving 4 ohm loads.
1000 watts per channel with both channels driving 2 ohm loads.
1300 watts per channel into an 8 ohm load driven in bridged monoaural operation.
2000 watts per channel into an 4 ohm load driven in bridged monoaural operation.

Small Signal Frequency Response .......... 3Hz - 85kHz +0 -3dB
                                .......... 20Hz - 20kHz +0 -.2dB
                                                                
Intermodulation Distortion ............... Less than 0.01% at rated 8
(SMPTE)                                    ohm power output

Rise Time (Small Signal) ................. 4 microseconds

Slew Rate ................................ 20 V/microsecond, stereo
          ................................ 40 V/microsecond, mono
                 
Crosstalk ................................ At least 100dB @ 20Hz
                                           At least 85dB @ 1kHz
                                           At least 60dB @ 20kHz 

Phase Shift .............................. 20Hz - 20kHz ±10 deg

DC Offset Voltage ........................ Less than 10mV (typically 3mV)

Hum and Noise ............................ 113dB below 280 watts/8ohms
                                           20Hz - 20kHz unweighted or
                                           115dB below 280 watts/8ohms
                                           20Hz - 20kHz A weighted when
                                           measured from the unbalanced
                                           input.  109dB below 280
                                           watts/8ohms 20Hz - 20kHz
                                           unweighted when measured
                                           from the balanced input.

Input Sensitivity ........................ 1.5V RMS for rated 8 ohm output

Voltage Gain ............................. X 31.6 = 30dB

Input Impedance .......................... 15kohms and 240pF either
                                           balanced or unbalanced
                                           (balanced inputs between
                                           pins 2 and 3).
                                           7.5kohms and 480pF when 
                                           operated in bridged mono.
                                                   
Load Impedance ........................... Drives any load of 2 ohms or 
                                           greater in stereo operation
                                           or 4 ohms or greater in
                                           bridged mono operation.
                                                   
Damping Factor ........................... 500:1 re:8 ohms below 500Hz

Power Requirements ....................... 950 watts for rated 8 ohm
                                           power.  100,110,120, 200 or
                                           240 VAC:50 - 60Hz 
                                                   
Input Connectors ......................... One male and one female
(per channnel)                             balanced XLR connector in 
                                           parallel, pin 1 "shield",
                                           pin 2 "cold", pin 3 "hot"
                                           (reversible), in parallel
                                           with one tip-ring-sleeve
                                           1/4" phone jack.
                                                   
                                           One 1/4" switched phone jack
                                           input for direct access to
                                           the single ended input.
                                                   
                                           Optional transformer
                                           balanced input module 
                                           (specify option 06)
                                                   
Output Connectors ........................ Standard 3/4" spacing, 
(per channel)                              "5-way" binding posts.

Grounds .................................. Circuit and chassis grounds
                                           connected through rear panel
                                           slide switches.

Indicators ............................... One pair of green LED Power 
                                           On indicators (flashing during
                                           power up sequencing and turn-on
                                           delay).
                                                   
                                           13 green LED power output
                                           indicators per channel, 3dB steps
                                           from -12dB (from rated output)
                                           through -48dB.
                                            
                                           3 yellow output indicators per
                                           channel, -3dB (from rated output)
                                           through -9dB.
                                                 
                                           1 red LED power output indicator
                                           per channel. Rated (280 watt 8 ohm) 
                                           output.
                                                   
                                           2 red LED True Clip indicators per 
                                           channel (mounted without spacing)
                                            
                                           1 red LED DC offset indicator per 
                                           channel
                                            
                                           1 red LED transformer over-
                                           temperature indicator.  Internal
                                           transformer temperature above 
                                           110 deg. C
                                           
                                           
Controls ................................. One 22 position detented rotary
                                           control precision input attenuator
                                           per channel.  Attenuation steps of
                                           0, -2, through -30dB (2dB steps),
                                           -33, -36, -42, -50, -60, and -infin.
                                           
Switches ................................. AC switch/magnetic circuit breaker,
                                           front panel.  Fan Defeat switch rear
                                           panel.  Bridged operation switch,
                                           rear panel.  Dual Mono Mode switch,
                                           rear panel.  Ground lift switch,
                                           rear panel.  Subsonic filter switch,
                                           rear panel.
                                           
Turn-On/Turn-Off ......................... No transients during turn-on/off.
                                           3 second delay prevents input
                                           signals from reaching amplifier
                                           output during turn-on sequence.
                                           
Optional Electronic ...................... Two BGW XOVER1 or XOVER2 crossover
Xover Cards                                cards may be installed inside the
                                           chassis
                                           
Dimensions (Front Panel) ................. 7" x 19" standard rack space.
                                           
Dimensions (Chassis H x W x D) ........... 7" x 17.3" x 12.9" behind panel
                                           15" overall depth.
                                           
Weight ................................... 55lbs. Net (60lbs. shipping)