Nakamichi Amplifier 1

The Nakamichi Amplifier 1 is a great amplifier from a great brand that knew exactly what it was doing…

This black giant looks like it’s straight out of a Batman film, in my opinion if Batman had an amplifier in his cave it would be this one, it’s big, powerful, heavy, beautiful, technologically advanced for its time and it sounds very, very good.

Great sound quality and harmonic time alignment technology at the core that directly addresses the fundamental sound time and the distortion component and the action of the NFB. Amplifier1 uses an amplifier circuit in this theory, both for the preamplifier and the power amplifier sections. This circuit uses a wide-band, low-gain open-circuit design to keep the amount of NFB in the audio band constant and to minimise the amount of NFB itself. This circuit combines techniques to correctly adjust the phases of the fundamental sound and the distortion components throughout the audio band.

The master volume is driven by a drive motor, a motor-driven rotary selector for use with the remote control and an electrolytic capacitor with an emphasis on sound quality.

The power amplifier section uses a total of 8 transistors with 2 parallel units and has a peak current supply capacity of 28A.

It uses a multi-regulated power supply system to avoid interference between sections and phases around the power supply. It has separate transformer windings for the preamplifier section, the power amplifier section and the control section, and separate local regulators for the equaliser amplifier and the line amplifier.

The ground circuit also utilises Nakamichi’s original isolated ground system to reduce noise interference in the signal system.

Equipped with a high-gain equaliser amplifier with a transistor differential input.

Direct CD input, supplementary (bypassing everything), signal input from here skips the selector and balance volume, and simple signal transmission is possible via the dedicated 4-link volume.

Gold-plated CD and phono terminals, a properly designed phono stage (MM/MC switch on the back) and an IR remote control for switching sources and adjusting the volume via a 4-channel motorised potentiometer.

In short, it’s great!!!


Power output: 80 watts per channel into 8Ω (stereo)

Frequency response: 5Hz to 80kHz

Total harmonic distortion: 0.1%

Input sensitivity: 0.125mV (MC), 2.5mV (MM), 150mV (line)

Signal to noise ratio: 70dB (MC), 82dB (MM)

Output: 150mV (line)

Speaker load impedance: 4Ω to 16Ω

Dimensions: 430 x 125 x 360mm

Weight: 15kg

Accessories: remote control

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