Perreaux SM3 - User Manual

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Summary

Identifies the product as the Perreaux SM3 Stereo Preamplifier, manufactured in 1986.

Details input sensitivity, impedance, overload levels, rated/maximum output, and impedance for main and tape outputs.

Covers distortion, noise levels, frequency response, channel separation, and phase accuracy of the preamplifier.

Provides the physical size (width, height, depth) and weight of the Perreaux SM3 stereo preamplifier.

Pre-Amplifier Input Specifications

input sensitivity (high gain, moving coil)	175μVrms @ 1kHz
input sensitivity (low gain, moving magnet)	1.8mVrms @ 1kHz
input sensitivity (compact disc)	350mVrms
input impedance (high gain, moving coil)	47kΩ
input impedance (low gain, moving magnet)	47kΩ
input impedance (compact disc)	20kΩ
input overload (high gain)	120mVrms @ 1kHz
input overload (low gain)	900mVrms @ 1kHz
rated output	1.5Vrms into 10kΩ or higher

Output and Impedance

maximum output	27Vrms into 10kΩ or higher
main output, source impedance	470Ω
tape output level	110mV
source impedance	2kΩ
minimum recommended load impedance	10kΩ

Distortion and Noise

distortion (phono inputs)	0.005% 20Hz-20kHz rising to 0.01% before overload
distortion (all others)	less than 0.0009% 20Hz-20kHz at rated output
noise (phono, high gain, unweighted)	-64dB re rated input
noise (phono, high gain, A weighted)	-72dB re rated input
noise (phono, low gain)	-86dB re 10mV input

Frequency and Phase