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

Connexelectronic Commercial Vendors large & small hawking their wares

Thread Tools Search this Thread
Old 10th January 2013, 01:30 AM   #1
HNCadet is offline HNCadet
diyAudio Member
Join Date: May 2012
Default Recommendation for an 8 channel amp?

Looking for an Amp recommendation here. Your SMPS500R has been one that's been mentioned. Would like your input prior to making a final decision. The Amp is a bit old now, however it has a sound that I enjoy and just needs MORE Volts & Amps. It's an 8 Channel Chip Amp that utilizes 2 Tripath 4100 chips. The 4100's can each handle 12A so the requirement would be ~24A MAX. The eight speakers are all rated @ 40-50W and they are a mix of 4 & 8 Ohm speakers, but over time I expect to move all toward the 4 Ohm variety. The chip amp board has a bridge rectifier on it now which I am in the process of removing or bypassing to accept DC power direct to the board(currently there is a 160VA, 18-0-18V Torroid powering the board). Oh and the board does have ~ 20K of caps in place.
Old 23rd January 2013, 03:22 PM   #2
Cristi is offline Cristi
Join Date: Dec 2008
Location: Hong Kong or Europe
Recommendation for an 8 channel amp?
I've read the datasheed of TA4100, the maximum supply voltage for reliable operation must not exceed 24-25V. That 12A per channel is the over-current detect threshold not at all the max. output current per channel which is ~4A RMS for a decent 70W on 4R. The suitable power supply for this amplifier is SMPS500RS-24 which is able to provide >20A at 24V more than enough to drive the amp to maximum level on all channels. The main advantage of using a regulated SMPS instead a mains transformer, rectifier bridge and capacitors is that the supply voltage will be constant, without drops (a linear supply can drop 5V or more during peaks) and the rated output power can be achieved without compromise. The capacitors from the SMPS500RS 24V version are enough already, and another 20mF on the amplifier board will keep the voltage more stable.


Recommendation for an 8 channel amp?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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
I need an amp recommendation erikus Car Audio 1 23rd September 2013 01:36 PM
amp recommendation Lico Pass Labs 12 27th March 2010 11:50 AM
2 channel preamp recommendation please gary h Solid State 0 29th April 2006 02:05 AM
Recommendation of 2 cu. ft. enclosure for Titanic 12" MKIII and Rythmik 350W Amp AVaholic Subwoofers 0 15th January 2004 06:48 PM
My 4 channel car Amp distorting on 1 channel (large pics) MikeHunt79 Car Audio 9 3rd September 2003 06:41 AM

New To Site? Need Help?

All times are GMT. The time now is 07:17 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio