From a PERREAUX flyer from my archive.
The SA3 is a very high quaility (no holds barred) pure Class A preamplifier. The power supply is large (18,800 mfd of filtering) providing high performance potential.
All components are hand selected and tested. Gold plated Input/Output sockets are used throughout. The SA3 employs polypropelene and polycabonate capacitors Ihroughout the signal path for greater sound quality. Electrostatic discharge proof (ESD) transistors maintain the lowest possible noise level at all times. The inputs/outputs on the rear panel are as follows.
PHONO INPUTS: The phono inputs on the SA3 are flexible being switchable between high/low gain to accept the output of any cartridge. The phono stage itself has very accurate single stage passive equalisation. Load sockets are provided to facilitate rnatching the loading requirements of all known cartridges.
AUX INPUTS The Aux inputs ore capable of accepting high voltages without fear of overload. They are as follows: Tuner. purpose built Aux/CD wicth built in attenuation to accept the high outputs of CDs and Hi-Fi VCRs, Tape in and Monitor en for 3 heod oft tape rnonitoring.
OUTPUTS: Two Outputs are provided. Tape out for recording and Main Out for connection to a high quality power amplifier, for example the Perreaux PMF1850. The SA3 has been aestheticalIy designed to blend into the home environment. The excellent performance and reliability are the results of quality materals. solid construction and dedicated craftmanship.
INPUT SENSITIVITY/INPUT IMPEDANCE:
High Gain (moving coil) 200 microvolts RMS, at 1,000 Hz 47K ohms Low gain (moving magnet) 2.8 rnillivolts RMS, at 1,000 Hz 47K ohms.:
Compact Disc 350 millivolts RMS at 20K ohms : All others 110 millivolts RMS at 25K ohms.
INPUT OVERLOAD: High gain 35 millivolts RMS at 1.000 Hz.: Low gain 350 millivolts RMS at 1,000 Hz All others 50 volts, RMS.
RATED OUTPUT: 1.5 Volts RMS into 10K ohms or higher,
MAXIMUM OUTPUT: 25 volts RMS inio 10K ohm: or higher
MAIN OUTPUT/SOURCE IMPEDANCE: 1,000 ohms
TAPE OUTPUT LEVEL/SOURCE IMPEDANCE: 110Mv/2K Ohres.
MINIMUM RECOMMENDED LOAD IMPEDANCE: 10K ohms.
DISTORTION (THD and IMD): Phono inputs 0.005% 20 Hz to 20KHz rising to 0.01% before overload.: All others less than 0.0009% 20 Hz to 20KHz at rated output.
NOISE (INPUTS LOADED): Phono. high gain -50dB at rated input (unweighted) - 66dB rated input (A weighted) Phono low gain -86dB re l0Mv input (unweighted) - 78dB re rated input (unweighted) - 86dB re rated input (A weighted).: AII others - 100dB re rated input (unweighted) - 108dB (A weighted).
FREQUENCY RESPONSE: Output Stage 20Hz to 50KHz +/- 0,25dB
CHANNEL SEPARATION: 68dB 20Hz to 20KHz, all Inputs
PHASE ACCURACY: ±2 degree 20Hz to 20KHz.
DIMENSIONS: 483mm (19") WIDE, 45mm (1-3/4") HIGH, 331 mm (13") DEEP. WEIGHT: 5.5kg (12Ib).
Michael-Otto