Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

noise problem
noise problem
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
Thread Tools Search this Thread
Old 22nd February 2005, 08:28 PM   #1
danyel is offline danyel  Romania
diyAudio Member
Join Date: Feb 2005
Location: bucharest
Default noise problem

I've just built a power amplifier with tda 7294 and tda 1524.
The case for the amplifier does not include the power supply . Here's my problem:the amplifier section is very quiet but when i connect the preamp section it gets noisy.Don't know how to say in english: it's a "sssssssssssssssss" noise, not very powerfull but disturbing. When i connect a cd plyer (napa 311 mp3 player-with batteries) this noisy sound gets amplified the moment i raise the volume from approx.30 % up. Just don't know how to fix this.
HELP! Anyone...
  Reply With Quote
Old 22nd February 2005, 08:52 PM   #2
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
Netlist's Avatar
Join Date: Jan 2003
It could of course be the cd player. Did you try with another source?

  Reply With Quote
Old 23rd February 2005, 06:41 AM   #3
Leolabs is offline Leolabs  Malaysia
diyAudio Member
Leolabs's Avatar
Join Date: Dec 2004
Location: Bukit Mertajam
Send a message via MSN to Leolabs
U might be having grounding problem
  Reply With Quote
Old 23rd February 2005, 10:59 AM   #4
danyel is offline danyel  Romania
diyAudio Member
Join Date: Feb 2005
Location: bucharest
I've connected my amp to the pc.It sounds great.The fuss is still here but it doesn't increase any more when i turn up the volume.U were right: it seems the cd-player is the problem.But with another amp this noise is not present anymore.Impedance mismatch? I will ceck the grounding too.Anyone experienced tda1524? How does it sounds?
Don't have pics with my amplifier but i'll try to post some as soon as posible. It looks great and it's small due to the lack of the power suply(this one is in another case).Kind of strange isn't it?
  Reply With Quote


noise problemHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Noise problem on DAC IC DrVingTor Digital Source 0 3rd July 2006 09:17 AM
Noise Problem. raveenvijendren Solid State 0 14th November 2005 06:03 AM
Noise Problem Jackson Yaya Solid State 4 6th June 2005 06:08 PM
HF noise problem jarkaa Chip Amps 1 6th February 2005 04:47 PM
Port noise problem ernieretief Multi-Way 9 4th August 2003 08:11 PM

New To Site? Need Help?

All times are GMT. The time now is 10:25 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio