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Marantz 1090

Stereo Console Amplifier (1977-80)

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Marantz 1090


Power output: 45 watts per channel into 8Ω (stereo)

Frequency response: 10Hz to 60kHz

Total harmonic distortion: 0.1%

Damping factor: 45

Input sensitivity: 1.8mV (MM), 180mV (line)

Signal to noise ratio: 76dB (MM), 88dB (line)

Output: 775mV (line), 1.5V (Pre out)

Dimensions: 416 x 146 x 301mm

Weight: 9.5kg

Year: 1977


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Reviewed Mar 18th, 2019 by Dmitri Records

I have found this unit a very resonable price. It's a shame had some scratchs everywhere, om the other hand, all components reamain genuine. I use it as pre with a Mchistosh power and Fluance Signarure speakers. Sounds amazing with every source and every music. Rock, Jazz, Blues. ..

Reviewed May 01st, 2017 by alex haidar

Very good amplifier with clear and deep bass. The loudness is very responsive. I have been using it as a pre amplifier with a Model 250M power amplifier. Amazing sound with my JBL E60

Reviewed Dec 16th, 2014 by fredy

Good sound, in line with what the Marantz was at that time

Reviewed Dec 06th, 2014 by fast400

Very warm sounding amp that can still be had at a reasonable price! With the right speakers this unit outperforms my 90's Pioneer VSX 456.



re: 1090

Hi, Does anyone have the user's or owner manual for this Marantz 1090 ?

re: 1090

You can download the manual here on hifi engine. I have a xerox of the manual from 1978 when I had this amp.

Old 1070 Unit -- actual its a 1090

Same problem as my 2216B-- touchy pots.

However this one the phono input has been dead for a while.


Hi everyone

Does anyone have the manual for the 1072? It would be good to be able to download it.

Many Thanx


Marantz Model 1090

The best


What are the best replacements for these, the original transistors (2SD588 / 2SB618 = ECG380 / ECG381), which are ongoing and will succeed?. Regards Charles

Replacement for original transistors 2SD588 / 2SB618

The original transistors 2SD588 / 2SB618 has characteristics Vcbo=150V, Vebo=5V, Ic=7A, Pc=80W (You can also view its datasheet for more information on some internet pages such alldatasheet.com; datasheet4u.com; dataachieve.com...).

It's easy to replace with the same type, same characteristic. Hereunder the replacement reference

* Original part: 2SB618 (150V, 7A, 80W)

Part Similar/ Replacement
2SB618 2N6228

2SB618 2SB617

2SB618 2SB618A

2SB618 2SB688

2SB618 2SB758

2SB618 2SB773

2SB618 KT887B

* Original part: 2SD588

Part Similar/ Replacement
2SD588 2SC552

2SD588 2SD587A

2SD588 2SD718

2SD588 KT812A

Good Luck.

Notice: Don't worry about any problems occured. I've replaced hundreds of power transistors for amplifiers/ receivers.

This website is not affiliated with or sponsored by Marantz. To purchase 1090 spares or accessories, please contact the company via their website or visit an authorised retailer.