TPA3116 chip amp.

pre65
Rank: Big Band

Everything that can be home made is home made. DIY rules. Philip.

Posts: 1,688

TPA3116 chip amp. Jul 31, 2014 16:51:47 GMT

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Post by pre65 on Jul 31, 2014 16:51:47 GMT

A little while ago I spent £12.99 (inc P & P) on a TPA3116 chip amp. I already had a good quality 24v power supply so all I had to do was add input and output connectors and wire in the PSU.

Now, to my old ears, it sounds pretty good, much better than the last T amp I had.

Looking on Ebay just now the price has gone down to £9.99, what a bargain for 50w.

www.ebay.co.uk/itm/TPA3116-Inductor-Circuit-Design-Class-D-Digital-Power-Amplifier-Board-50W-50W-UK-/291152081620?pt=UK_AudioTVElectronics_HomeAudioHiFi_Amplifiers&hash=item43ca0432d4

Last Edit: Jul 31, 2014 16:56:21 GMT by pre65

pre65
Rank: Big Band

Everything that can be home made is home made. DIY rules. Philip.

Posts: 1,688

TPA3116 chip amp. Jul 31, 2014 16:59:46 GMT

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Post by pre65 on Jul 31, 2014 16:59:46 GMT

As an experiment I replaced the 24V power supply with my 0-12v DC bench supply and it sounded just as good at 12v, and indeed kept going as I wound the voltage down and only stopped working at a gnats under 5v, so the PSU voltage is not critical unless you need the full 50w.

MartinT
Administrator

Posts: 54,911

TPA3116 chip amp. Jul 31, 2014 17:27:58 GMT

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Post by MartinT on Jul 31, 2014 17:27:58 GMT

Interesting, Philip. I find that even the higher voltage (14V) of the TA-2021 based T-Amp I have on this here PC runs out of juice too quickly, going into that horrible limited shouty sound that they do when they're stressed. This is for near-field listening!

I've not come across the TPA3116 before, but 24V rail sounds perfect so I shall look it up.

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Post by pre65 on Jul 31, 2014 16:51:47 GMT

Post by pre65 on Jul 31, 2014 16:59:46 GMT

Post by MartinT on Jul 31, 2014 17:27:58 GMT