Perreaux 4004A manual Specifications, Rated Power Output both channels driven into 8Ω

Specifications:

Rated Power Output (both channels driven into 8Ω)	..................................................... 40 watts RMS
Rated Power Output (both channels driven into 4Ω)	..................................................... 50 watts RMS
Typical Power Output at clipping
- both channels 8Ω	44 watts RMS
- both channels 4Ω	58 watts RMS
- each channel 8Ω	47 watts
- each channel 4Ω	68 watts
Frequency Response 1W into 8Ω	16Hz - 20KHz ±0.5dB
	10Hz - 68KHz ±3dB
Frequency Response 40W into 8Ω	20Hz - 20KHz ±0.5dB
	14Hz - 53KHz ±3dB

Total Harmonic and Intermodulation Distortion - no greater than 0.15% at any power from 1 watt to rated output.

Hum and Noise at minimum volume	-85dB
Hum and Noise Aux input maximum volume	-75dB*
Hum and Noise Mag input maximum volume	-70dB*
	* shorted inputs
Damping Factor	50 (@ 8Ω 100Hz)
Input Sensitivity Magnetic	1.8mV RMS
Input Sensitivity Auxiliary	160mV RMS
Input Sensitivity Tuner	160mV RMS
Input Sensitivity Tape	160mV RMS
Overload Sensitivity Magnetic	50mV RMS
Overload Sensitivity Auxilary	2.0V RMS
Tone Controls:
Bass	+18dB -16dB @ 40Hz
Treble	+18dB -16dB @ 17KHz
Filters:
Low Filter	From 18Hz (-6dB per octave)
High Filter	From 15KHz (-6dB per octave)

:Schematic diagram

:Product manual

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