Mod your Beresford 7520

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Originally Posted by StanleyB

My power supply is excellent, which is why I include it with the DAC :).
Of course, that doesn't mean that you can't try out other power supplies. I have customers using solar cells with a regulator and rechargeable batteries, or 12V car batteries, or CB radio linear power supplies, etc. My own latest experiment is with Maxwell super caps batteries.

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Hi Stan,
So this power supply which I have purchased with my 7520 is good (Unifive, 12v, 1.5A)? What PS is supplied with new 7520's?
Thank you for suggestions as well as well for excellent DAC's
Rob

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Originally Posted by RoboCopper

So this power supply which I have purchased with my 7520 is good (Unifive, 12v, 1.5A)? What PS is supplied with new 7520's?

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UniFive 12V, 1.5A. Have you seen the stand alone power supplies of other DACs on the market and compared them to mine? If anyone has, it is highly noticeable that my power supplies are of far better quality as well than those of my competitors in this price range.

No, unfortunately I have not seen other PS, I am new to DAC market, but my ears tell me that 7520 (and brain) is excellent sounding DAC with upgrade possibilities.
I wonder if building own PS (e.g.with toroidal PS) would improve the sound or
is in not simply economical in terms of sound benefit?

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Originally Posted by RoboCopper

I wonder if building own PS (e.g.with toroidal PS) would improve the sound or
is in not simply economical in terms of sound benefit?

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Try a CB linear power supply and modify that one. I used one from Maplin to test the proof of concept.

At least Stans PSU's don't burn out unlike some certain others :eyebrows:

What about this question..

1. As I am quite happy with LM4562NA, I would like to try THS4032, but where to buy it together with 8pin adapter SOLDERED together (once I tried to solder another chip, but my skills are not up for that task). Any links would be appreciated, I prefer ebay purchase.
Is this safe "bet" to buy? Is it original? Anybody had any experience from that seller?
http://cgi.ebay.co.uk/Ths4032-Dual-O...item3358f1a69b

If you do a search in Google or the forum for Tirna Electronics you should be able to get the THS4032 from there. Many people on AoS uses their service for mods etc.

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Originally Posted by RoboCopper

Thanks Jerry,
Just a quick question in relation to AD826? Can you shortly describe the sound please?

Other questions:
1. As I am quite happy with LM4562NA, I would like to try THS4032, but where to buy it together with 8pin adapter SOLDERED together (once I tried to solder another chip, but my skills are not professional for that task). Any links would be appreciated, I prefer ebay purchase.
Is this safe "bet" to buy? Is it original? Anybody had any experience from that seller?

2. What is Stan suggestion for power supply, my Beresford has normal PS ( Unifive is written on it)

Regards

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Just bear in mind that my 7520 is modded-Murata regs and 15v supply-I dont know if some of the improvement is down to this but the AD826 IMHO has a better grip of deep bass (no bass boom) and a lovely 3 dimensional soundstage. For what they cost (about £4 each) its worth a try.

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Originally Posted by Covenant

Just bear in mind that my 7520 is modded-Murata regs and 15v supply-I dont know if some of the improvement is down to this but the AD826 IMHO has a better grip of deep bass (no bass boom) and a lovely 3 dimensional soundstage. For what they cost (about £4 each) its worth a try.

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I would agree.
I tried most of the usual suspects and settled on the AD826. Everything sounds more musical and natural.

The AD826 can drive harder loads than most other choices too, capacitive loads shouldn't cause it any problems so is less picky with interconnect cables etc
This chip will also really appreciate the better regulation giving better performance