Noise with SMPS and T-amp mod

ghisdal · 26th February 2007, 04:32 PM

Hi,

Just completed my T-amp mod. I've reboxed everything and added some Mundorf Silver 2.2uF caps. New pot and on/off switch.

I have included one of those 8080 SMPS that have been selling on ebay.

The problem is noise. There is a little static noise all the time, but this is so low that it doesn't bother me. I have a different noise that comes and goes. It is a harsh sound, hard to describe exactly. It is there for a second and then disappears again.

I have read that the t-amp+SMPS combo can produce some noise..... is this what I'm hearing?

Please advice (and pardon my english)...

Pano · 27th February 2007, 05:59 AM

That's a hard question.

Can you tell us more about the noise that comes and goes? Might it be from something else in the Hi-Fi chain? Do you have another power supply that you can test with? Maybe even batteries?

26th February 2007, 04:32 PM	#1
ghisdal diyAudio Member Join Date: Nov 2006	Noise with SMPS and T-amp mod Hi, Just completed my T-amp mod. I've reboxed everything and added some Mundorf Silver 2.2uF caps. New pot and on/off switch. I have included one of those 8080 SMPS that have been selling on ebay. The problem is noise. There is a little static noise all the time, but this is so low that it doesn't bother me. I have a different noise that comes and goes. It is a harsh sound, hard to describe exactly. It is there for a second and then disappears again. I have read that the t-amp+SMPS combo can produce some noise..... is this what I'm hearing? Please advice (and pardon my english)...

27th February 2007, 05:59 AM	#2
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	That's a hard question. Can you tell us more about the noise that comes and goes? Might it be from something else in the Hi-Fi chain? Do you have another power supply that you can test with? Maybe even batteries? __________________ Take the Speaker Voltage Test!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
SMPS Noise	microsim444	Everything Else	23	20th December 2008 07:11 AM
SMPS Noise Problem	rejithcv	Power Supplies	0	13th November 2006 02:33 PM
SMPS noise problem	Nuuk	Digital Source	8	4th July 2006 02:02 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)