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myvinyl333
2011-08-18, 13:43
Pardon me if this thread/question has been asked, but not being a DIY person, what is the easiest SB3 modification, PSU? I have decided against a DAC and will beef up the SB3.

kgturner
2011-08-18, 14:41
Adding a linear power supply is considered by many to be a good way to increase the sound quality of an SB3. Welborne Labs sells a linear power supply for the SB3 for about $250. It's on sale right now for $212 assembled or $165 in kit form. The ELPAC WM220-1 was a popular choice while they were available. Good luck.

Kevin T

Stratmangler
2011-08-18, 17:57
At those prices a DAC looks very attractive.
I'd google Welborne Labs too before placing any orders. Don't just look at the obvious.

Chris ;)

Mnyb
2011-08-18, 20:18
please don't do bussines with wellborne he is a scam and a criminal , google ;)

vrette
2011-08-18, 20:35
+2 on Welborne Labs. Never got the product, and took a lot of arm twisting to get my money back.

One cheap alternative ($28) is to pick up a Touch power supply directly from Logitech. It is a perfect replacement, and a better unit.

http://buy.logitech.com/store/logib2c/en_US/DisplayCategoryProductListPage/categoryid.28136200

Best bang for the buck is a new DAC. The SB3 sounds great, but you would be surprised what an improvement a newer DAC will make.

bobkoure
2011-08-19, 05:38
...Touch power supply directly from Logitech. It is a perfect replacement, and a better unit.
Interesting... How do you know it's a better unit? Put both on a scope? Are they both switching power supplies?
I've read that there's some issue with the original SB3 ps putting interference on the inbound AC line. Is the touch ps just cleaner that way?

vrette
2011-08-19, 06:05
Interesting... How do you know it's a better unit? Put both on a scope? Are they both switching power supplies?
I've read that there's some issue with the original SB3 ps putting interference on the inbound AC line. Is the touch ps just cleaner that way?

That is what I have picked up on the various threads on the subject on this forum. So I bought a Touch power supply for my SB3 (which I recently sold) and was pleased with the results. Search the forum and you will find all kinds of good info on the subject.

myvinyl333
2011-09-16, 16:25
After much debate I ordered the power upgrade for the SBT. it did take 3 weeks, but I got it and it made a definite improvement. Tighter bass is the most evident. I will post a picture soon.

I am very pleased!