* Wood case (oak) is optional.

Commentary

A stereo power amplifier with a unique design.

Pure complimentary service circuit is used, and all stages connected with DC are perfectly symmetrical, and all stages except those using FET are class A operation.
In addition, by improving the bare characteristics of the amplifier, the overall NFB is reduced to 14 dB or less, and the sense of hearing is emphasized.
These designs ensure an excellent bandwidth of 230 kHz for open loop and 1.15 MHz for 14 dB NFB, while eliminating protective circuits such as the Zobel network.

It is a full discrete design without using IC.

The power supply has a twin monaural configuration in which the left and right sides are completely independent. It is equipped with a transformer using EI core and a filter condenser of 70,000 μ F per channel.

Carefully selected military-grade parts are used for the parts.

Aluminum die-cast frame is used for the frame.

There are 2 variations of the finish of the exterior, black and hammer tone.
In addition, the wood case was sold separately as an option, and there were 3 types, walnut, rose wood and oak.

Model Rating

Type	Stereo power amplifier
Output (20 Hz to 20 kHz, both channel operation)	100W + 100W (8 Ω load) 175W + 175W (4 ohm load)
Input sensitivity	775 mv (at 8 Ω load, 100W output)
Slew rate	180 V / μ sec.
Rise time	0.32 μ sec.
Damping factor	60 (DC ~ 40 kHz)
Open-loop bandwidth	230kHz
Closed-loop bandwidth	1.15MHz
Negative feedback quantity	14dB
Current delivery	10 Arms (continuous) 40A (instantaneous)
Total harmonic distortion factor	0.2% or Less (DC ~ 40 kHz)
Interference distortion due to different frequencies	0.05% or Less (8 Ω Load, 10W Output) (sweep between DC and 200 kHz at 300 Hz intervals)
Cross modulation distortion factor	0.05% or Less (70 Hz fixed, sweep between DC and 200 kHz, 4 : 1 mix)
Signal-to-noise ratio	100 dB or more
External dimensions	Width 443x Height 94x Depth 321 mm
Weight	23kg
Sold Separately	Wooden case (¥ 70,000)