Audio Database
CA35
Commentary

Vacuum tube stereo preamplifier with 3-pole tube configuration for all stages.

The amplifier stage consists of a phono equalizer amplifier and a line amplifier, each of which uses highly reliable twin triodes. The circuit structure is a 3-stage K-K feedback type amplifier, with two ECC-83 and one ECC-82 in the equalizer amplifier section and three ECC-82 in the line amplifier section for DC ignition operation.

Equipped with MC cartridge booster transformer.

Model Rating
Type Control amplifier
Equalizer Amplifier Section
Input Sensitivity / Impedance Phono MC : 0.1mV/7 Ω
Phono MM : 1.2mV/47k Ω
RIAA deviation MC : 20 Hz ~ 20 kHz + 0 -1.5 dB
MM : 20 Hz to 20 kHz ± 0.1 dB
Total harmonic distortion factor MM/MC:0.05%(IHF)
Maximum allowable input MM/MC : 45 dB (1 kHz, IHF)
Signal-to-noise ratio MM/MC:72dB(IHF)
Flat Amplifier Section
Input Sensitivity / Impedance CD, Tape, Tuner : 80mV/250k Ω
Frequency characteristic 20 Hz ~ 80 kHz + 0 -0.3 dB
Signal-to-noise ratio 78dB(unweighted)
Total harmonic distortion factor 0.015%(IHF)
Maximum power output 45Vrms/100k Ω
<General>
Pwer 100 VAC, 50Hz/60Hz
External dimensions Width 445x Height 80x Depth 230 mm
Weight 6kg