12v 4 Channel Amp, Ideally for a car. - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 9th June 2013, 12:55 AM   #1
diyAudio Member
 
Join Date: Jun 2013
Default 12v 4 Channel Amp, Ideally for a car.

Hello all,

I am in the market for an amplifier for a car based set-up.
Im attempting to build an all in one Android based car pc with 3G and etc.

The issue I have currently is a gap where the amp should be due to not being able to find something suitable. Which is where I turn to you guys.

To break it down:
The power comes straight from the battery, but is switched by the ignition supply though the ISO connectors. The system only powers up when the ignition is on. From that, I have 4 power connections, 2 x 12v outputs, for the preamps and amplifier, routed off before a 5v 5A regulator for the motherboard and a 5V case fan.

The motherboard itself has 2 stereo jack outputs which I have used to low noise stereo preamps to give them a little kick before they are properly amplified.

This is where the problem is. I need a 12v powered (ideally), 4 channel amp which has a reasonable wattage per channel which will give the at least same volume output that a stock head unit might give, if not better. The speakers themselves have a 90w (5 inch) and 180w (6inch) threshold, but Im sure thats not an issue. All 4 speakers are 4Ω.

Can anyone advise me further on the situation and any advice on what I should get? I'd like the amp to be as small as possible, 100x60mm or less.

Thanks in Advance
JuzzTF

Last edited by juzztf; 9th June 2013 at 01:32 AM.
  Reply With Quote
Old 9th June 2013, 05:26 AM   #2
diyAudio Member
 
Join Date: May 2010
Location: Skokie Il
Well then why didn't you post this in the car audio forum ?
  Reply With Quote
Old 9th June 2013, 06:57 AM   #3
Mihkus is offline Mihkus  Estonia
diyAudio Member
 
Mihkus's Avatar
 
Join Date: Jul 2012
hes looking for chipamp.
TDA7850 and all similar quadbridge amps will do superbly well
  Reply With Quote
Old 11th June 2013, 06:24 AM   #4
diyAudio Member
 
Join Date: May 2013
JussTF - I just built and tested (literally an hour ago) a 4 channel amp using TA8251AH. I use a 96.52 x 63.5mm (3.8 x 2.5 inch) PCB by default, but there would be no problem shrinking this.

Sorry for the crappy photo ... I mounted this to an aluminum box for testing.

I cannot comment on how this compares to the original head unit.
Attached Images
File Type: jpg 2013-06-11 02.11.01.jpg (314.6 KB, 73 views)
  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
Have on order car amp PPI P900.4 -> 4x100w 4 ohms w/12v, under $200 new.... turbodawg Class D 14 28th February 2013 06:27 PM
6 channel TA2020 finished amp (setup for 12V) maurycy Swap Meet 11 1st June 2009 02:51 PM
Convert a home amp (110v) to car amp (12v) jimmyvstc Car Audio 4 12th February 2009 05:16 AM
Looking for amp kit that runs on 12V (car battery) maurycy Chip Amps 5 2nd October 2008 08:29 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 12:22 PM.


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