Step down transformers

[farflungstar]

I was wondering if using a step down transformer with power amps might be a bad idea. Have my eye on a Japanese power amp with an industrial sized step down transformer. Would this hinder dynamics?

Adey

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[Arkless Electronics]

Absolutely not. It will be fine.

[AlfaGTV]

Or not, industrial size transformers have a tendency to make mechanical noice.
I'd personally seek a way co convert it to take 230v as i wouldnt want the extra bulk but thats just me! :)

[anthonyTD]

Make sure you use a decent transformer, ie; the step down should have a seperate primary, and secondary winding, therefore; its also an isolating transformer, and not an Auto transformer, which has one winding, which is tapped!
A...:)

[Arkless Electronics]

I must say that I can't see any problem with an autotransformer here..... It's the most common solution.

[anthonyTD]

I am happy to agree to disagree on this one, there are advantages, and disadvantages to each' depending on the situation/aplication, and the quality of the transformer in question.:)
And its Christmas!:eek::D
I must say that I can't see any problem with an autotransformer here..... It's the most common solution.

[farflungstar]

Thanks guys - the problem is I don't know what type of transformer it is - only that it's huge and has one cable going in and one coming out terminated in a double UK socket as it's feeding two monoblocks configured at 120v for the Japanese market. The seller can't give me any concrete info on the step down - he said to either use it or wire the amps in series... scratch..
Adey

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[Barry]

In principle there is nothing wrong with wiring the two monoblocks in series for use on the UK mains supply, but it might invalidate your home insurance.

One of the advantages of using monoblocks is to be able to locate each one close to the speaker it supplies. This configuration would make the series mains connection complicated.

[struth]

I,d be inclined to give it a bye tbh. Might just be more trouble than its worth

[farflungstar]

I was thinking the same....
Adey

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[spendorman]

If it's an amp that you like, use a transformer as long as it's safe, e.g. no live parts accessible, earthed if not double insulated, fused, and rated for at least the amplifiers maximum power consumption.

Also make sure the amp is earthed if it's not double insulated.