corsayoung
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Registered: 10th Feb 09
Location: Cheltenham
User status: Offline
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Hey,
Just wondering if any of you 30000 off members have put an old car amp into your house and connected up to a stereo lets say as we are currently trying to in our uni house. Trying is the word there.
Basically we got a cd player with 2 speakers connected at the minute, im looking to use an old car amp and connect all the speakers plus a sub and the original speakers all to the amp and have the input comin from the stereo some how.
Just wondering how would i power the amp, and what would the ground and remote cables be? Ive got a spare car battery, but would it be better to use a battery charger lets say, or just a ac to dc converter, like a laptop charger?, but then also about the ground and live where would i put the ground wire and the remote, where would that come from?
Any help would be fantastic 
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Ste
Premium Member
Registered: 5th Mar 03
Location: Taif, Saudi Arabia
User status: Offline
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I'm going to be frank with you from the start. Don't bother. It really isn't worth the effort. There are many reasons why this is doomed to fail and I'll list a few for you.
Firstly you'll need a constant high current supply to the amp. You won't get that with a laptop charger. maybe if you had 40 or 50 of them you would.
Second, a car battery isn't designed to be used for constant current drain. It will go flat then be ruined.
Third, if you run it off a battery charger it will cost you a fortune to run, be dangerous and the charger will cause interference.
Just buy a proper indoor one. 
I would rather lose by a mile because i built my own car, than win by an inch because someone else built it for me.
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AlunJ
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Registered: 3rd Apr 07
Location: Newport
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I ran my car sub off my stack system amp for a while in the house, did the job, but using a car amp... Well too much hassle 
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corsayoung
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Registered: 10th Feb 09
Location: Cheltenham
User status: Offline
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Hmmm thanks for the feedback, well at our uni house we got free electric etc all in with the cost so cost doesnt reallly bother us and it isnt going to be on all the time only at certain times for an hour or two.
So what do you think will be the best solution?
Thanks
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Bart
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Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
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I guess theres no reason why you couldnt use a 230-24V charger.
Im not sure what current it would draw though.
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pow
Premium Member
Registered: 11th Sep 06
Location: Hazlemere, Buckinghamshire
User status: Offline
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quote:
Originally posted by Bart
I guess theres no reason why you couldnt use a 230-24V charger.
Im not sure what current it would draw though.
And it's fucking dangerous?
Just buy a cheap 2.1 or 5.1 system from ebuyer
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noshua
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Registered: 19th Nov 08
User status: Offline
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As mentioned above you're better off just using a car sub rather than the sub and amp. Theres plenty of tutorials on YouTube that include an old pc PSU.
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Bart
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Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
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quote:
Originally posted by pow
quote:
Originally posted by Bart
I guess theres no reason why you couldnt use a 230-24V charger.
Im not sure what current it would draw though.
And it's fucking dangerous?
Just buy a cheap 2.1 or 5.1 system from ebuyer
Lol, why's it dangerous?
A 24V power supply mounted in a appleby/gewiss box with a look and plug is not dangerous.
p.s dont get me wrong, I wouldnt bother for what you'd get out of it, but it aint dangerous.
[Edited on 22-09-2010 by Bart]
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corsayoung
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Registered: 10th Feb 09
Location: Cheltenham
User status: Offline
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well we hooked the sub up to the stereo system, however it didnt sound to great.
Now i know a car is a more confined space that a living room but it really did not sound that loud, and cant help thinking that the stereo isn't putting out enough power to power the sub as it should be
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ed
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Registered: 10th Sep 03
User status: Offline
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I'm using a car amp for an engineering application. I use a bench power supply and it draws about 2 amps.
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corsayoung
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Registered: 10th Feb 09
Location: Cheltenham
User status: Offline
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Hmm also what about the ground wire?
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ed
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Registered: 10th Sep 03
User status: Offline
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What ground wire? It's DC so it has a + and a -
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corsayoung
Member
Registered: 10th Feb 09
Location: Cheltenham
User status: Offline
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quote:
Originally posted by ed
What ground wire? It's DC so it has a + and a -
I mean for amp, would i use the negative off the transformer for the ground wire?
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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do yourself a favour and get this - the sub is powerful enough to shake the house
http://www.logitech.com/en-au/speakers-audio/home-pc-speakers/devices/224
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corsayoung
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Registered: 10th Feb 09
Location: Cheltenham
User status: Offline
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quote:
Originally posted by Cybermonkey
do yourself a favour and get this - the sub is powerful enough to shake the house
http://www.logitech.com/en-au/speakers-audio/home-pc-speakers/devices/224
Nice price too!
What im going to do is use a PSU though, just been told its pretty easy so
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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if they are $350AUD here, you should easily be able to buy the Z5500 for 150 quid over there
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Bart
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Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
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yes, I used to have the Z5500 until it blew up and chucked the sub out 
I sold the speakers on ebay.
@ Corsayoung
24V DC PSU @ £5 IP 67 so you shouldnt have to worry around it.
Leave a 3A fuse in the main socket and bobs your uncle.
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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you must have run the sub damn hard, they are hardy units.
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Bart
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Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
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tbh, I think the mechanical part of the sub was fine, but the controller wouldnt switch on, so it was either the controller or the connection between the controller and the sub box.
It wasnt the fuse in the plug or the internal fuse in the sub box
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Cybermonkey
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Registered: 22nd Sep 02
Location: Sydney, Australia
User status: Offline
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shame. For the money, they are epic.
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Bart
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Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
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deffo, if I had the money, id buy it again.
I would prefer the wireless set, but theyre not quite the same.
I might wait until the next range is out, im sure they'll refresh the product.
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oceansoul
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Registered: 19th Jun 06
Location: Sunbury, Surrey
User status: Offline
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Bart; Why do you keep mentioning 24V PSU?? Car is 12V 
What i would do is find out the current draw of the AMP. Get a suitable Power Supply. Connect the + and -. Link the + to the remote (so that the AMP is on when the PSU is on. Then RCA out from your CD player to the RCA in on your AMP.
Bam done.
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Bart
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Registered: 19th Aug 02
Location: Midsomer Norton, Bristol Avon
User status: Offline
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Lol oops, sorry been working with 24v psu's all week
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