New/upgraded TC-7520 power supply?

Well, in that case, all I have left to do, is sort out my music library..

Thanks Stan.

Quote:

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Originally Posted by Covenant

(or the other improvements that Stan has yet to tell us about :eyebrows:)

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More soundstage, firmer bass on the LM4562NA. But they require soldering skills, which is why I only gave a brief glance of them. I am in negotiation with someone who can take over the job of doing the mods for the soldering challenged.

Stan

Your research is much appreciated Lovejoy you have saved me the cost and effort of experimenting with different supplies. I am now certain that Stan's new supply is the best way forward. I tried a battery supply too and was underwhelmed.

So the money saved can go towards Stans upgrade which sounds intriguing.
Whatever it is, I know it will be the best comprimise between performance and cost.

Please keep us all informed Stan!

More than happy to be of service. I'm sure there'll be more experiments to try in time too. With the utmost of respect to Stan, he's always a great help and seriously knows his stuff, but I always like to try these things for myself, no matter if you end up spending a few pounds, and it's always good to have the odd third party recommendation.

[QUOTE=lovejoy;45139]
One thing I did pick up on this weekend is how much I prefer the sound of a USB connection from my PC to using either optical or coax. Strangely, I can tell no difference whatsoever if I'm using a Mac between optical and USB but on the PC, USB brings more realism to instruments like piano and guitar. It's one of the only digital setups I've ever heard where you can actually feel the amount of weight going into a played piano note. There's much more of a sense of being able to look into a recording too. It's thoroughly engaging.

Thanks for your great report. Very informative.

Do you know if USB cables have an impact on sonics in the same way as normal interconnects? Are you using “special” USB leads to get your favourable results?

I don't have any special USB cables. I have a load of spare ones lying around of all different shapes and lengths both with and without RF chokes. At the moment I'm using one which was sat on the end of an old printer for years. A task for this week is to see if there are any differences between them.

I read a report by someone a while back that there was a benefit in a good quality USB cable which I found quite hard to believe at the time, but knowing that there are indeed differences between optical and coax cables, it's an avenue that should be investigated.

Hi Rich

Yes I remember that comment a while back and asked the question of you for that very reason.
I’ve located and attached those USB comments by kbutch below.

Rich have you used the “repeater USB” extension type cables for over 5m lengths? I imagine there would be many people interested in using USB from a PC located ~10m away from the audio gear (to isolate noise, convenience, another room, etc)

Quote:
#7, kbutch, 22/3/09:
Try upgrading your USB cable used to connect the 7520.

I know digits are digits, and USB uses a "handshake" to confirm data is sent. NEVERTHELESS, I changed a perfectly fine standard USB cable for a U.S. $30 Belkin Gold Series USB Shielded 2.0 cable, which is well-shielded, 20 AWG wire, that has gold-plated connectors and is yet very flexible .

Hooked the A end up to my Mac computer , and the B end to my Beresford TC-7520. My Lord. What a difference. It is much more easy to listen to at higher volume without any strain. Notes are richer, and it is easier to pick-out the musicians in the soundstage. Things sound effortless now, and must have been a bit strained/distorted with the standard cable. Cheapest darn upgrade yet for me.

Granville

I don't think that was the same post I saw. That's really interesting, thanks for that. Just goes to show that the term 'bits is bits' only applies if you're a computer. Time for a bit of research on high quality USB cables then.

It would be very boring if it all behaved predictably wouldn't it?

...but USB is a computer interface using a hand shake protocol and CRC data protection.

http://www.faculty.iu-bremen.de/birk..._protocol.html

I don't think it was really envisaged as a storage interface but its widely used as such without apparent data loss or problems. I can understand it sounding different to SPDIF which is more akin to FM.

...as to cables...maybe there is something in keeping the cable as short as possible and with proper shielding to keep correctable errors low. IE less strain on the receiving node correct circuit (if it has one!) but keep it real guys when choosing USB cables. :)

***EDIT***

Ah! Unless the transfer is isochronous in which case there is no defined format used...but CRC is still used...hmmmm

would it be overkill to get diy an linear transformer psu?