- 400 watts x 2 @ 8 RMS, both channels driven
- 600 watts x 2 @ 4 RMS, both channels driven
- 1200 watts x 1@ 8 , in bridged mode
- Circuitry designed by legendary John Curl
- Ultra-high bias Class A/AB operation
- 12 watts per channel of pure Class A power
- 90 amperes peak current per channel
- Stable with speaker impedance dips to 1.5
- Balanced inputs with discrete circuits
- CHK Infinium, custom 5-way speaker binding posts
- Neutrik locking XLR input connectors
- Vampire gold-plated RCA input & loop output jacks
- Direct-coupled signal path, no capacitors or inductors
- DC Servo and relay protection circuits
- AC turn-on inrush surge protection with relay bypass
- Dual-mono input stages with 110 volt DC rails
- JFET input stage, MOSFET driver stage
- 24 beta-matched 15 ampere, 60 MHz bipolar output transistors
- 1.7 kVA shielded toroid power transformer with independent windings for each channel
- Independent power supplies for left & right channel input stages, driver stages, output stages
- 8,880 F Nichicon Gold Tune filter capacitors for input stages
- 132,000 F Rubycon filter capacitors for output stages
- Full power is rated all the way down to 5Hz for unrestricted low-end bass
- Harris hyper-fast soft-recovery bridge diode rectifiers
- Automatic turn-on by 12 V trigger or audio sensing
- 4 rack space chassis with rear carry handles
- Rack mount hardware is included
- Available in silver or black
| Power Output - Both Channels Driven |
400 watts x 2, 8
600 watts x 2, 4 |
| Power Output - Bridged Mode |
1200 watts x 1, 8
Bridged 4 operation is not recommended |
| Power measurement parameters are at 120 VAC: |
0.05% THD, RMS continuous power,
full audio band (20 Hz - 20 kHz) |
| Current Capacity |
90 amps peak, per channel |
| Slew Rate |
> 130 volts per microsecond |
| Frequency Response |
5 Hz - 100 kHz, +0/-3 dB
20 Hz - 20 kHz, +0/-0.25 dB |
| Total Harmonic Distortion (THD) |
< 0.05 % at full power
< 0.03 % at typical listening levels |
| IM Distortion |
< 0.04 % |
| TIM |
Unmeasurable |
| Inter-channel Crosstalk |
> 87 dB at 1 kHz
> 72 dB at 20 kHz |
| Input Impedance |
Unbalanced: 33 k
Balanced: 66 k ,(33 k per leg) |
| Total Gain |
29 dB |
| Input Sensitivity for 28.28 V Output into 8 |
Unbalanced: 1 V
Balanced: 1 V per leg |
| S/N Ratio |
> 116 dB, input shorted, IHF A-weighted
> 111 dB, input shorted, unweighted |
| Damping Factor |
1000 at 20 Hz |
| DC Trigger Requirements |
+9 Vdc to +12 Vdc, 5 mA |
| Audio Trigger Requirements |
2 mV - 10 mV |
| XLR Pin Identification |
1 = Ground (Shield)
2 = Positive
3 = Negative (Return) |
| Dimensions |
Width: 17-5 8" (448 mm)
Height without feet: 7-1 8" (181 mm)
Height with feet: 7-3/4" " (197 mm)
Depth: 20" (508 mm)
Depth with cables: 21-1 2" (546 mm) |
| Net Weight |
73 lb. (33.1 kg) |
| Shipping Weight |
90 lb. (40.8 kg) |
| Power Requirement |
Standby: 1 Watt
Idle (no music playing): 225 Watts
Typical listening levels: 400 Watts
Maximum: 1500 Watts |
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