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

Class D Switching Power Amplifiers and Power D/A conversion

TDA7498E Mod
TDA7498E Mod
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 23rd January 2018, 12:34 AM   #1
drauzinho is offline drauzinho  Brazil
diyAudio Member
 
Join Date: Jun 2017
Default TDA7498E Mod

Does anyone that have these boards knows any improvements for better sound quality/better bass ? Thanks.

TDA7498E Digital Placa Amplificador de Potencia 2x160 w Mono Amplificador de Potencia Digital de Alta potencia Estereo BTL220W em Amplificador de Eletronicos no AliExpress.com | Alibaba Group
  Reply With Quote
Old 23rd January 2018, 01:17 AM   #2
r_kalar_2 is offline r_kalar_2  Bangladesh
diyAudio Member
 
Join Date: Oct 2009
Location: Dhaka
Follow and post here:
Ebay cheap TDA7498 boards
  Reply With Quote
Old 23rd January 2018, 01:57 PM   #3
FauxFrench is online now FauxFrench  France
diyAudio Member
 
Join Date: Dec 2017
Location: The mountains, calm and quiet.
I have tried the board with good results.
A brief test can be found on DIYBudgetAudio.com under "TDA7498E based class D power amplifier".
A modification is suggested.

Good firm bass is to a large extent a question about a power supply that can deliver rapid current transients without loosing tension, thus, good large decoupling capacitors and sufficient power.
  Reply With Quote
Old 23rd January 2018, 02:11 PM   #4
drauzinho is offline drauzinho  Brazil
diyAudio Member
 
Join Date: Jun 2017
Quote:
Originally Posted by FauxFrench View Post
I have tried the board with good results.
A brief test can be found on DIYBudgetAudio.com under "TDA7498E based class D power amplifier".
A modification is suggested.

Good firm bass is to a large extent a question about a power supply that can deliver rapid current transients without loosing tension, thus, good large decoupling capacitors and sufficient power.
FauxFrench, very good info at the site, thanks a lot. The only thing I couldn't be shure is to which diodes is he talking about. Can you check with me if it's the D3 and D1 from the PCB Layout ? Thanks.
  Reply With Quote
Old 23rd January 2018, 02:20 PM   #5
FauxFrench is online now FauxFrench  France
diyAudio Member
 
Join Date: Dec 2017
Location: The mountains, calm and quiet.
The two polarity protection diodes, which are suggested shorted, are the two SMD diodes near the output chokes and tuned some 45 degrees compared to the other components.
  Reply With Quote

Reply


TDA7498E ModHide 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
TDA7498E Board drauzinho Class D 5 12th October 2017 10:00 PM
TPA3255 or TDA7498E drauzinho Class D 10 4th September 2017 03:47 PM
TDA7498E vs IRS2092 based amp pguerin Class D 13 12th July 2017 10:23 AM
Interesting cheap TDA7498E amplifier... apocalipsis1234 Class D 1 24th April 2015 08:59 PM
Its not diy but what do people think about these TDA7498E amps on ebay. wayward91 Class D 10 5th January 2013 03:47 PM


New To Site? Need Help?

All times are GMT. The time now is 06:32 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki