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Technics SU-7300

Stereo Integrated Amplifier (1976-79)

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Technics SU-7300


Power output: 41 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.08%

Damping factor: 40

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

Signal to noise ratio: 78dB (MM), 97dB (line)

Output: 150mV (line)

Speaker load impedance: 4Ω to 16Ω

Dimensions: 441 x 146 x 334mm

Weight: 9.1kg


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Reviewed Aug 27th, 2015 by kjs73

Excellent musical sound

Reviewed Jul 26th, 2015 by maggicni

Zvuk, izrada i izgled su fantasticni, pravo iznenadjenje za mene.

Reviewed Dec 28th, 2014 by MikeCaffyn

Absolutely sublime piece of kit. Only just playing up after 30 years. :-(



re: SU-7300

I could make a copy/paste of Robo15's comments ! It's a smart looking integrated amplifier, reliable (I bougth it in '79) and warm sounding. The bass side is powerful and punchy, but it's not very subtle in the highs and high mids. Of course, some components have aged a bit, just like me, and I'm not sure I might remember precisely how this baby was sounding in his early years...
I've to unscrew the box from time to time. The front switches - especially those devoluted to the tape monitoring - need some contact spray about one time a year. Being able to dismantle this little beast the good way for cleaning parts hard to reach will be of great help. So, I'd like to thank you very much for the service manual.

re: SU-7300

Thank you very much for this manual,Big help for me

re: SU-7300

thanks for the manuals. I have owned this amplifier since it was first sold back in the '70's and it has lately had a problem where one channel dies after about 20 minutes. Would love to get this fixed and hopefully the service manual will lead me to the culprit. thanks!

re: SU-7300

I have also had mine since 1979. Over the years i have had a little trouble with the switches and a button or two. When a channel cuts out i usually find the cause in the tape monitor switches. Usually switching them up and down a couple of dozen times restores the channel connection in the switch. Sometimes this problem is from the speaker button. On mine lately the tuner button has also caused a similar problem. If you power the unit down and spray contact cleaner in the switches it really helps get rid of the problem. Just give it 5 minutes time to dry before powering back up.

re: SU-7300

Thank you for the manuals to this amplifier!

re: SU-7300

Oh, thanks a lot for the service and users manual! I just bought an SU - 7300K . Amazing!!!!!!

fpfreddy's picture

re: SU-7300


Thank you for this manuals.
I've got this amplifier and i like it.


Technics SU-7300

Thank you for the manuals to this amplifier!

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