Audio Database


This pre-main amplifier is the successor to the long-selling model PM-80.

We have introduced technologies used in high-end models such as full-scale 3-amplifier configuration, new MOS FET, and 4-channel active volume.

In order to suppress distortion and maintain high stability against the input of a high-level source such as CD, a three amplifier configuration is adopted in which each amplifier block of pre, tone and power is independent.
The first stage of the equalizer, pre-amplifier and power amplifier has the same circuit configuration as the HDAM.

A large MOS FET is used in parallel push-pull at the final stage of the power block to ensure high current drive capability.
The phono equalizer, which deals with very small levels, has the same circuitry as the HDAM.

Four active volumes are used to significantly improve the S/N in actual use.
The pre-section, which has the same circuit structure as the HDAM, is integrated with the volume unit, and is copper shielded to obtain high S/N.

The power supply section uses a large power transformer and a 15,000 μ Fx2 special specification low-power foil electrolytic capacitor.
In addition, a noise killer element that absorbs high-frequency noise is used for the output power supply and the voltage amplifier power supply.

Die-cast side panels hold the chassis from both sides to increase rigidity.

There are 2 color variations of gold and black.

Model Rating
Type Stereo pre-main amplifier
Rated output
Class A operation :

Class AB operation :
35W + 35W (4 Ω)
25W + 25W (6 Ω)
20W + 20W (8 Ω)
140W + 140W (4 Ω)
120W + 120W (6 Ω)
100W + 100W (8 Ω)
Total harmonic distortion factor 0.005%
Frequency characteristic 10 Hz to 100 kHz + 0 -1dB
Signal-to-noise ratio High Level:111dB
Input terminal Line input : Route 3
Phono input : 1 system
Tape input : 2 systems
Output terminal Tape Output : 2 Systems
Speaker output : 2 channels
Power consumption 250W (Electrical Appliance and Material Control Law)
External dimensions Width 454x Height 165x Depth 380 mm
Weight 17.5kg