AT4000 SIGNATURE SERIES
The AT4000 series amplifiers, available with 2 to 7 channels, share the design philosophy and circuit sophistication of ATI’s award-winning AT6000 Series amps at a reduced power of 200W RMS per channel at 8 ohms and 300W RMS at 4 ohms. Furthermore, their “signature series” designation with a facsimile of Kessler’s signature on the main panel attests the special nature of these amplifiers.
Dual detachable, 3-wire cord.
Parts and labor against defects in parts or workmanship.
4RU 7.00” (178mm) Rack Mount
8.00” (203mm) Standard Height
77 to 119 lbs (model dependent)
The use of a modular PCB layout with amplifier and power supply parts on the same card with edge to edge isolation of AC and signal input provides improved signal-to-noise ratio. Dual toroidal transformers, dual power switches and dual AC power cords bring a complete dual-mono design to the AT4002 and AT6002. Multi-channel amplifiers up to the 7-channel AT4007 and AT6007 models may be connected to independent 20 amp circuits for greater sustained output power than would be possible than from a single AC circuit.
4000 Series amps are rated at 200 Watts RMS from 20Hz to 20kHz with no more than 0.03% THD at 8 ohms with all channels driven and 300 Watts RMS at 4 ohms under the same conditions. Signal-to-noise ratio is typically -126dB referenced to full output so that each Signature Series amp is capable of playing back the full dynamic range available on today’s lossless recordings.
Soft Start Circuitry
Power Supply Capacitance
Numbers of Channels
FTC Full Bandwidth Power Output@ 8Ω (Watts RMS)
FTC Full Bandwidth Power Output@ 4Ω (Watts RMS)
Input Sensitivity for Full Rated FTC Output Power - 8Ω
Signal-to-Noise Ratio (Ref FTC Rated Power, A-Wtd)
Total Harmonic Distortion + Noise (20Hz - 20kHz)
Recommended Load Impedance
Power Bandwidth FTC
Voltage Gain (RCA Inputs)
Voltage Gain (XLR Inputs)
Output DC Offset
1x 20 Amp Circuit
Power Consumption (Standby)
Power Consumption (Idle)
Chassis Dimensions (W x H x D) inches
Chassis Dimensions (W x H x D) millimeters
Net Weight (lbs/kg)
Shipping Weight (lbs/kg)