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Akai AM-U02

Stereo Integrated Amplifier (1980)

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Akai AM-U02


Power output: 26 watts per channel into 8Ω (stereo)

Frequency response: 10Hz to 40kHz

Total harmonic distortion: 0.01%

Damping factor: 45

Input sensitivity: 3mV (MM), 150mV (DIN), 150mV (line)

Signal to noise ratio: 75dB (MM), 95dB (line)

Channel separation: 55dB (MM)

Output: 150mV (line), 30mV (DIN), 1V (Pre out)

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 16 x transistors, 19 x diodes, 9 x IC

Dimensions: 440 x 105 x 300mm

Weight: 7.8kg


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Akai AM-U02 - Inputs Not Working

Hey Everyone.

I'm pretty new to all this, so please humor me if I am doing something wrong here.

I just received the system from a friend who had it in his garage for years. Tried to set it up today, but I'm running into difficulties. I've tried plugging two turntables into the amp, one with a built-in pre-amp and one without. I have gotten sound out of the system when I plug the RCA into the MAIN IN, but absolutely no sound when I try AUX, TUNER, and PHONO. I'm not sure if I'm doing something wrong or what, but I'd really love some help.

re: Akai AM-U02 - Inputs Not Working

The preamp connects to the main amp through "johnson jumpers" on the rear, they're probably missing and need to be replaced - OR - using a set of RCA-to-RCA cables.
(pre out - main in)
So many receivers missing the JJumpers are the result of the previous owner using an outboard equalizer or sound processor or something.

re: Akai AM-U02 - Inputs Not Working

That did it!

Inputs work now!

However, now the sound is a little garbled. I thought it might be the speakers, so I plugged in some headphones but it still sounds garbled, even when plugged in direct.

re: Akai AM-U02 - Inputs Not Working

The receiver needs troubleshooting and servicing.
Using it in poor operating condition will only lead to more damage.
Anything over 20 years old is prone to needing this attention.

This website is not affiliated with or sponsored by Akai. To purchase AM-U02 spares or accessories, please contact the company via their website or visit an authorised retailer.