Trio Basic M1 - Retrotech Audio - Vintage Audio

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Trio Basic M1

Current For Sale

Trio Basic M1


Trio Basic M1

Stereo Power Amp

All original and unmolested, his very highly regarded early 80’s vintage Made in Japan stereo power amp is in nice condition and full working order.


• Power output: 105 watts per channel into 8Ω (stereo)
• Frequency response: 1Hz to 300kHz
• Total harmonic distortion: 0.005%
• Damping factor: 1000
• Input sensitivity: 1V
• Signal to noise ratio: 120dB
• Speaker load impedance: 4Ω to 16Ω
• Dimensions: 440 x 112 x 324mm
• Weight: 9.1kg

The following information is from the excellent website:

“Unprecedented dynamic headroom, vanishing distortion and precision control of speaker cone excursion. These are some of the rewards of the new technology to be found in the Basic M1.

A startlingly simple design concept translates into a much sought after goal of higher power handling ability combined with low distortion and outstanding tonal quality. A patented Kenwood technology, the DLD power circuit brings together the best features of a top quality medium power amplifier and a high power amplifier, totally sidetracking their disadvantages. Thus, you can get the enormous power needed to amplify the most dynamic music signal peaks.

Simultaneously, you can hear the kind of smooth, evenly balanced tonal quality extending throughout the audible range you would normally expect only from a first rate medium power amplifier. There are no size, weight, heat or thermal instability problems. Dynamic peaks are
handled easily and are so clearly perceptible they will satisfy the most hypercritical listener.

Highly reactive speaker loads and crest value music signals that exceed rated output are taken fully in stride by the Basic M1. This amplifier can comfortably handle the highest dynamic peaks, even at rated listening levels, and can operate fully with speaker impedances that fall as low as 2 ohms.

The amplifier is designed for a frequency response accurate to within +-3dB from 1 Hz to 300kHz, ensuring that all signals falling within the audible range are reproduced perfectly.”

This comes with a print-out copy of the original user manual.

£220 (GBP).

Payment accepted via PayPal, Bank Transfer, Personal Cheque or cash on collection.

Economical worldwide shipping via UPS or FedEx - Expertly packed, tracked and insured.


Please contact us either by telephone on 01883 340073
or by sending and email to
if you are interested in purchasing this item.


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