Phonograph Preamplifier

With this product you will be the owner of one of the most innovative and advanced phonograph preamplifier’s available at the moment.

Feature list:

• a specific designed Phonograph preamplifier section, unique in the world

• Phonograph RIAA – equalization with coils only, no sound impairing capacitors in filters

• special printed circuit board material with gold conducting paths

• the printed circuit board has a special seating to evade microphonics

• special equipment foot made of selected wood avoids mechanical energy storage

• low noise moving coil input stage, no annoying noise even with low-output cartridges

• automatic adapting input stage for moving coil cartridges, no matching resistors needed

• possibility to compensate phonograph cartridge sensivity (level adjustment)

• cut out of coupling capacitors in the signal path as far as possible

• strictly separated amplifier sections and circuit layout deliver a very natural soundstage

• inputs: two phonograph inputs, one for MC cartridges, one for MM or MC high-output

• a shielded transformer is placed in an external housing to avoid hum and EMI noise

• power supply with Gyrators for each amplifier stage deliver very high noise cancellation

• the external transformer is available for different mains voltages

TECHNICAL SPECIFICATIONS

Mains Power: 115 or 230Volt, 50/60Hz
Power consumption: 7 Watts
Temperature operating range: from 15 up to 30deg. Celsius Use only in dry rooms
Max. un-distorted output voltage: 25Vss (Accumulator driven version:19Vss)
Output impedance: 330 Ohms (real resistive)
Input sensitivity values: for 250mV resp. 0,707Vss output level on amplifier output

MM input: 
Amplification factor 33dB: 5,6 mV
Amplification factor 41dB: 2,2 mV
Amplification factor 50dB: 0,8 mV
Input impedance: 47KOhm / 50pF

MC input: 
Amplification factor 56dB: 0,4 mV
Amplification factor 64dB: 0,15 mV
Amplification factor 73dB: 0,05 mV
Input impedance: automatic matching from approximately 40 up to 400 Ohms