Building a regulated power supply for Lepai T-amp - diyAudio
Go Back   Home > Forums > Amplifiers > Class D

Class D Switching Power Amplifiers and Power D/A conversion

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
Reply
 
Thread Tools Search this Thread
Old 15th March 2012, 06:05 PM   #1
diyAudio Member
 
Join Date: Aug 2011
Location: Columbia, Missouri
Default Building a regulated power supply for Lepai T-amp

I have a little Lepai "20" watt amp, and have been considering building a filtered, linear voltage-regulated power supply for it.

What would be the sonic benefits of this?

I understand that the real advantage will be much longer lifespan of a linear PSU vs the SMPS that comes with it. Also, it eliminates the issue of catastrophic failure of the SMPS damaging the amp.

But... will it really sound better? I have done plenty of research on "how" to build the PSU, and think I've got that part down, but I am just trying to decide if it will really improve the sound any.

The little lepai amp has very low distortion at the volume levels I use, but I will say the noise floor is a little higher than I expected. Perhaps a cleaner PSU will fix that.

Edit: sorry moderators, I should have probably put this under power supplies instead of class-d
  Reply With Quote
Old 16th March 2012, 12:49 PM   #2
diyAudio Member
 
Join Date: Aug 2011
Location: Columbia, Missouri
Well, everything I've read thus far says a good power supply can make a tripath amp really sing. Something tells me I can do better than the Vonage SMPS parts express sent with my amp.

Off topic but I will say this... I certainly like my cheap lepai amp's sound a lot better than my dad's Kenwood or my brother's Onkyo receiver.

Any opinions on toroidal vs "normal" transformers for a linear psu? I've heard both ways.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lepai TP2020A+ and Computer power supply very strange issue! ruchirablog Class D 8 4th November 2011 05:57 PM
Class D amp Regulated power supply?? DionG Power Supplies 5 31st July 2011 04:12 AM
Regulated supply for power amp Jason Hubbard Power Supplies 18 10th June 2011 01:17 PM
help me i need a linear regulated power supply for my amp udhay_cit Power Supplies 1 13th March 2010 01:10 PM
Choke regulated power supply for S/S amp Matt Rowland Solid State 31 22nd March 2009 01:58 PM


New To Site? Need Help?

All times are GMT. The time now is 04:35 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2