Question about Technics SUV500 2-Channel Amplifier

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Technics SU-V460 Amp Problems

I've just bought a second hand SU-V460. Got it set up to play my SL-210 decks through a mixer. I've got the mixer running in through the Aux. The speakers are wired up to the B channels which is working but the volume doesn't make a difference whether it's on full, off or inbetween, so I'm controlling it on the mixer. I first of all set up the speakers on the A channel woke up this morning and was just playing through one speaker (whether you changed the balance or not). Slightly worrying, any ideas?

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Problem with older equipment is that mechanical switches corrode. Try some tuner cleaner on switches. One side cutting out may require the speaker leads (inside the cone of speaker) to be re tinned. Old speakers and lossa mileage cause solder to break up into powder. Re tinning the flexible link (looks much like a wick) allows that electricity to get into the speaker coil. If all else fails those old TV repair shops actually do have real techs that can fix it. Not like the current Geek Squad type of replace replace reboot replace type of tech. Good luck. Ed

Posted on Jan 05, 2009


If you have no control over the volume make sure the "power amp direct button" is not pressed in, this is located to te left of the volume control on the front.
although sometimes it can be handy to control your volume using the mixer saves reaching for the amp. but it can draw more current on that electricity bill.
this amp is a 450w amp, i have the same one :)

Posted on Jan 05, 2008

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Hi There, you need to eliminate all the connection and surplus items around the SUV-460 amplifier to determine if its the amp or not..

That is disconnect every thing then connect just the speakers and an input to the amp like a CD player or radio input. Then see if the amplifier plays OK thru the speakers on both channels and the balance control works fine....If it doesnt then the fault is inside the SUV-460 but if it all works fine than start reconnecting theemixer panel carefully and recheck all your cables and connections. Its a process of elimination to determine if its a "Box" fault or a cable fault...

Cheers From YUBEUT

Posted on Nov 16, 2007

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Hi there, i just bought 2 Technics mkii

well" for a start, they need to go into a phono socket, this amplifies them.
i take it you bought 2 decks with the intentions of mixing, so you gonna need a mixer.
1.decks into phono channels 1&2
2. black GROUND wires, go to GND screw on back of mixer
3. RCA master / booth Outputs on mixer to AUX / LINE-IN on amp.(not phono)

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Instruction manual for ministry of sound mixing decks

What are Ministry of Sound mixing decks? I am familiar with MOS, but was not aware they manufactured mixing decks?

Are you connecting these to a DJ mixer, or a Home Receiver?

If it's going through a home receiver, make sure you have them connected to the PHONO input on your receiver. If your receiver does not have a phono input, and you are connecting to the LINE IN or AUX IN section on the rear, you will not hear much. Most turntables require a pre-amplified signal, and only the PHONO input has this option. So, you will need to purchase a PHONO PRE-AMP, and connect your turntable to it, then connect the PHONO pre-amp to the LINE IN.

If you are connecting to a DJ mixer... same thing. Make sure you have them connected to the PHONO INPUT on the mixer. If you still don't get anything, then there might be something wrong with your mixer.

If you could clarify you exact set up, and the EXACT models, we can help you better.

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Having a hard time connecting various audio components

Yes, it is a little tricky...

1) CD Changer (output) -> CD input on Amp

this is tricky... this will allow you to record to your tape deck, and control the sound via the EQ:
2) Tape Deck (tape out / recout) -> TAPE PLAYBACK on EQ
3) Tape RecOut on EQ -> Tape 1 Playback on Amp
4) Amp Tape 1 RecOut -> Tape Deck Playback / Input / RecIn
in essence, your creating a loop starting from the tape deck, going to the eq, then to the amp, then back to the tape deck to record.

Your EQ has another set of LINE IN and LINE OUT - use the second Tape 2 on the amp to create another loop. This will
allow you to control the EQ for any of the other sources.
5) LINE IN on EQ -> Tape 2 RecOut
6) Tape 2 Playback on Amp -> LINE OUT on EQ

5) Radio Tuner (output) -> Tuner input on Amp
6) DVD/VCR Combo Output -> AV/AUX on Amp

7) PC Computer... you don't have room for this. You can either use the PHONO input, and you'll have to purchase a Line Level Phono Converter
or, get a Y cable and split the signal and share with some other source.

Hope this helps.


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