Car subamp 50W on 12v - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 8th July 2002, 06:27 PM   #1
palesha is offline palesha  India
diyAudio Member
 
Join Date: Nov 2001
Location: Pune India
Default Car subamp 50W on 12v

I want to make one 50w car subamp working on 14.4 v. I am thinking to bridge TDA 8560. Comments from group members is most welcome.
MP
Attached Images
File Type: gif 2x40w20hmtda8560~3.gif (19.4 KB, 1084 views)
  Reply With Quote
Old 8th July 2002, 07:37 PM   #2
Account Disabled
 
Join Date: Jul 2002
if u want to build a SUB amp forget the TDA8560
50W for SUB??? is to low!!
in the tda8560 the full power is 40W is not good for sub an in full vol u dont hear good the sound...
if u want to us in TDA soo
us in TDA7560...

TDA8560 = 55W MAX 30%-THD
TDA7560 = 55W MAX 10%-THD (in 2 ohm 80W)

and for subwoofer for car u need min 100W...
u need to build 100W amp and us or build upper power supply..
for, 13.5V to 30V +

all the TDA's
  Reply With Quote
Old 9th July 2002, 06:15 AM   #3
palesha is offline palesha  India
diyAudio Member
 
Join Date: Nov 2001
Location: Pune India
The TDA8560Q specs : It gives 28W/2ohms with 0.5% THD per channel(Stereo). Hence i thought after bridging we must get 50W/4ohms with 2% THD for mono. The car i want to install subwoofer is very small. Hence thinking of using this. Suggestions & comments welcome.
MP
  Reply With Quote
Old 9th July 2002, 09:49 AM   #4
diyAudio Member
 
Join Date: May 2001
Location: Denmark
Default what about using tda 1562Q

Tda 1562 Q class H
http://elektronikai.vtu.lt/schemos/garso/pdf/a.pdf

Here is a pcb layout .

http://www.aurelienr.com/electronique/ampliauto.htm

I havent build the amp myself ,but if you don't want to build sw powersupply you will not get a 100w amp into normal 4 ohms load.

best regards jc.
  Reply With Quote
Old 10th July 2002, 09:27 AM   #5
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
Let us assume that you have adjusted the voltage regulator in your car up to 14.4V (mine is 13.8V). And that you are running a bridge amp that is a rail to rail design and only drops 0.7V at full output across each output device. The most you can swing into the load then is 13.0V peak, 9.191V RMS, which is 21.12W at 4R. The TDA1562 from what I can see will do 70W at 10% THD.
  Reply With Quote
Old 12th July 2002, 01:53 PM   #6
palesha is offline palesha  India
diyAudio Member
 
Join Date: Nov 2001
Location: Pune India
Good. But i am going to use it now with 2ohm each dual voice coil speaker so that i need worry about the output. I have got in touch with one speaker manufacturer and requested to do the job for me. He told me that he will do it for me. I think now it will be possible to get 50w easily. Any suggestions in the matter are most welcome.
Mahendra Palesha
  Reply With Quote
Old 13th July 2002, 02:09 AM   #7
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
http://www.mif.pg.gda.pl/homepages/t...s/simp200W.gif
Just use TIP35 and TIP36 for outputs and TDA2002 for the drivers. Should put out 70W at 1R, no problems.
  Reply With Quote
Old 13th July 2002, 02:38 AM   #8
Duo is offline Duo  Canada
diyAudio Member
 
Duo's Avatar
 
Join Date: Jun 2002
Location: Victoria, BC, Canada
Send a message via ICQ to Duo
Where's he going to get 1 ohm worth of subs? They're pretty expensive... Not really worth it for only 70 watts I think.
__________________
-- Duo, W1ngs, VA7MON, and lesser known handles. --
-- http://www.w1ngselectronics.com -- My Work and Projects --
  Reply With Quote
Old 13th July 2002, 06:26 AM   #9
djk is offline djk
diyAudio Member
 
djk's Avatar
 
Join Date: Feb 2001
Location: USA
2R DVC driver = 1R, the suggested circuit will do 40W/2R, two inexpensive 4R car stereo drivers.
  Reply With Quote
Old 13th July 2002, 06:47 AM   #10
Duo is offline Duo  Canada
diyAudio Member
 
Duo's Avatar
 
Join Date: Jun 2002
Location: Victoria, BC, Canada
Send a message via ICQ to Duo
Okay, I see what you mean, 2 ohms load by a pair of 4's in series is one ohm to each amp in the bridged circuit, although, he said they were designed for 2 ohm service, don't you think the chip will be a bit overloaded?


EDIT: Oops, I just noticed your other idea for a circuit, I rest my case as your idea with the TIP transistors would work fine as far as I can tell.
__________________
-- Duo, W1ngs, VA7MON, and lesser known handles. --
-- http://www.w1ngselectronics.com -- My Work and Projects --
  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
B&W ASW-4000 Subamp ManUtd Solid State 9 3rd May 2012 09:17 AM
bridge or parrallel subamp help HIPCHECK Chip Amps 5 13th October 2006 10:00 PM
jast finished diy n-ch car subamp tmyr Car Audio 23 23rd August 2006 07:39 AM
What is the simplest way, to convert this GC to a subamp? Franz G Chip Amps 10 3rd November 2004 07:07 PM
FS: PE subamp, drivers - Australia rabbitz Swap Meet 2 6th April 2004 01:05 PM


New To Site? Need Help?

All times are GMT. The time now is 04:35 AM.


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