Audio Database

Image of C-73
Commentary

A preamplifier equipped with a cartridge load switch.

The EQ section uses first stage differential, 3-stage direct connection, final stage A class operation pure complimentary service SEPP, positive and negative two power supplies for reducing distortion and improving temperature characteristics.
We have also adopted carefully selected NFB elements.

It is equipped with a cartridge load selection switch in order to make the performance of the cartridge better.
Four types of load resistance and load capacity can be selected, and the load suitable for the cartridge to be used can be set.

It is equipped with auxiliary mechanisms such as 4-series volume using 32-step attenuator type and 2-series tape circuit capable of alternating tape copying.

It has a panel design that can be mounted on an EIA-standard rack.

Model Rating
Type Stereo preamplifier
Circuit system
Equalizer amplifier section : First stage differential 3-stage direct connection Class A SEPP
Control amplifier section : First stage differential 3-stage direct connection flat amplifier
Turnover 3-stage switching NFB-type tone
Input terminal Phono1, 2 (With Cartridge Load Capacity 4-Step Switching)
Tuner, AUX1, 2, Tape Play1, 2
Phono maximum allowable input (1 kHz) 300 mv (Distortion rate 0.01%)
Output terminal Tape Rec1, 2, Output
Harmonic distortion factor (20 Hz to 20 kHz) Phono:0.01%
Tuner, AUX, Tape Play : 0.005% at 2 v output
Frequency characteristic Phono : 20 Hz to 20 kHz ± 0.2 dB
Tuner, AUX, Tape Play : 10 hz to 100 khz + 0 to 0.5 db
Signal-to-noise ratio (IHF, A-network
Short circuit)
Phono:80dB
Tuner, AUX, Tape Play : 100 dB
Power consumption (Electrical Appliance and Material Control Law) 10W
External dimensions Width 480x Height 142x Depth 390 mm
Weight 7.7kg
EIU standard rack mounting unit 3U