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Marantz 1090

Stereo Console Amplifier (1977-1978)

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Marantz 1090

Specifications

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

Downloads

service manual  English - Oldmarantz

Catalogues

25th Anniversary

Audio Components

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Reviews

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rating
Submitted by fredy

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

rating
Submitted 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.

 

Comments

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.

marantz

Hi everyone

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

Many Thanx

Mike

Marantz Model 1090

The best

Transistors

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.