Diy car amp??

Veedub85 · 1st March 2011, 12:18 PM

Hi,
Don't know if this is the correct place to post this thread. I want to build a car power amp to use with my head unit. Don't need any filters in it. Just need 4 channel, clean 100watts amp with remote turn on by the head unit. Sound quality is the highest priority, thats why i'm resorting to building an amp myself. I'm not an expert but can just build amps if given the circuit. I ask another friend of mine for advices as he's more well versed. Please let me know if you have any nice circuits. Thanks.

jacampb2 · 1st March 2011, 02:46 PM

There are all sorts of published audio amplifier designs. Some with excellent specifications and would be good DIY project's. I have a couple of books by Douglas Self that have some really great projects in them.

That said, the power supply for a automotive amplifier is going to be the trickier part to get right. There are not anywhere near as many switch mode power supply designs out in the public domain, but there is one design that is linked in the thread stickied in the top of this section, and IIRC there is one on one of Perry Babin's web pages. There is also a design at Elliott Sound Products website, with a lot of clearly written material on how to design your transformer.

I think I saw this same post by you over on diyMA and they shot you down. Don't let them discourage you. If I had the time, I would definitely give it a shot-- I still may when I catch up with every other project that I am involved in.

Good Luck,
Jason

jol50 · 1st March 2011, 03:05 PM

Right there are a ton of posts on amp designs here you can use, only the PS is different for a car. You can also use a car amp for the PS if you are careful or find an amp where they are easier to cut apart.

mbates14 · 6th March 2011, 04:18 AM

I have used LM3886 ICs as drivers to push a pair of outputs before, and it worked quite well, simple design, and able to achieve over 100w+ depending on your outputs.

theAnonymous1 · 6th March 2011, 05:04 AM

Here is one of many car amp schematics you can find on teh web. I actually own this amp though.

Jonathan Bright · 07:07 AM

May not be exactly what you want but there is a dedicated car power amp (discrete not IC) in one of the old Audio Amateur compendiums. Built for car 12 volt power etc. The book is called "Audio Amateur Power Amplifier Projects", Although a 1996 production you'll find it still for sale on the audioXpress web site in their shopping, section. Go "shopping, books, general audio, design/circuits...' I think! From memory it is a two part article with MOSFET output stage.........

Cheers, Jonathan

BrianVG · 6th March 2011, 08:22 AM

100Watts for a car is a too much when you have efficient drivers. Perhaps you could use a T-amp for it?
Sure 4x100W @ 4 Ohm TK2050 Class-D Audio Amplifier Board

1st March 2011, 12:18 PM	#1
Veedub85 diyAudio Member Join Date: Mar 2011	Diy car amp?? Hi, Don't know if this is the correct place to post this thread. I want to build a car power amp to use with my head unit. Don't need any filters in it. Just need 4 channel, clean 100watts amp with remote turn on by the head unit. Sound quality is the highest priority, thats why i'm resorting to building an amp myself. I'm not an expert but can just build amps if given the circuit. I ask another friend of mine for advices as he's more well versed. Please let me know if you have any nice circuits. Thanks.

6th March 2011, 06:59 AM	#6
Jonathan Bright diyAudio Member Join Date: Feb 2004 Location: Queensland	May not be exactly what you want but there is a dedicated car power amp (discrete not IC) in one of the old Audio Amateur compendiums. Built for car 12 volt power etc. The book is called "Audio Amateur Power Amplifier Projects", Although a 1996 production you'll find it still for sale on the audioXpress web site in their shopping, section. Go "shopping, books, general audio, design/circuits...' I think! From memory it is a two part article with MOSFET output stage......... Cheers, Jonathan __________________ "It was the Spring time of the year when aunt calls to aunt like mastodons across the frozen waste." P.G. Wodehouse. Last edited by Jonathan Bright; 6th March 2011 at 07:07 AM.

6th March 2011, 08:22 AM	#7
BrianVG diyAudio Member Join Date: Jun 2010 Location: Louvain	100Watts for a car is a too much when you have efficient drivers. Perhaps you could use a T-amp for it? Sure 4x100W @ 4 Ohm TK2050 Class-D Audio Amplifier Board __________________ FET fanatic

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
DIY PSU for car amp (but for home use)	BNK	Solid State	18	11th November 2007 11:41 AM
car amp diy kit	engel dela pena	Solid State	0	12th October 2007 12:47 PM
DIY car audio class D 1500watt and above amp	griff	Class D	32	2nd July 2004 08:00 AM
DIY Car Amp resources	fr0st	Solid State	15	6th February 2004 01:57 PM


	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

1st March 2011, 02:46 PM	#2
jacampb2 diyAudio Member Join Date: Aug 2007 Location: Midland, Mi 48640	There are all sorts of published audio amplifier designs. Some with excellent specifications and would be good DIY project's. I have a couple of books by Douglas Self that have some really great projects in them. That said, the power supply for a automotive amplifier is going to be the trickier part to get right. There are not anywhere near as many switch mode power supply designs out in the public domain, but there is one design that is linked in the thread stickied in the top of this section, and IIRC there is one on one of Perry Babin's web pages. There is also a design at Elliott Sound Products website, with a lot of clearly written material on how to design your transformer. I think I saw this same post by you over on diyMA and they shot you down. Don't let them discourage you. If I had the time, I would definitely give it a shot-- I still may when I catch up with every other project that I am involved in. Good Luck, Jason

1st March 2011, 03:05 PM	#3
jol50 diyAudio Member Join Date: Nov 2007	Right there are a ton of posts on amp designs here you can use, only the PS is different for a car. You can also use a car amp for the PS if you are careful or find an amp where they are easier to cut apart.

6th March 2011, 04:18 AM	#4
mbates14 diyAudio Member Join Date: Jun 2002 Location: non	I have used LM3886 ICs as drivers to push a pair of outputs before, and it worked quite well, simple design, and able to achieve over 100w+ depending on your outputs.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read