Build Your Own Arcade Controls Forum

Main => Audio/Jukebox/MP3 Forum => Topic started by: Sparky2323 on October 29, 2007, 07:34:22 pm

Title: Using a Regulated 13.8v Power Supply
Post by: Sparky2323 on October 29, 2007, 07:34:22 pm

Anybody use something like this in their cabinet?  http://www.samlexamerica.com/products/productdescription.asp?ProductsID=1004

I'm planning on using a small 2x20 amplifier to run some 4" car speakers and I was wondering if it will work with what I want to do. My main question is will it act like a regular power supply and be able to be used for long periods of time? I read on one site that sells them that it provides up to 30 minutes of full load continuous operation. I can't use something like that if it only works for a short period of time.

Thanks for any help,
Sparky

Title: Re: Using a Regulated 13.8v Power Supply
Post by: drben on October 29, 2007, 10:30:04 pm

Well, you should really find out how much current your amplifier draws, but it really shouldn't be more than 7 amps, so I think that would be fine. I've just used a pc power supply to run my car amp in my cabinet. works a treat as those power supplies can put out a lot of current. I've had it running for days without turning it off..

Title: Re: Using a Regulated 13.8v Power Supply
Post by: Sparky2323 on October 30, 2007, 07:13:53 pm

Thanks for the reply. My amp has a 5amp fuse so it should be fine with the 3-5 amp model instead of the 7-10 amp one (I used the wrong link) I was going to hack a pc supply but I rather use this type of power supply for what I'm doing with my cabinet.

So this type of supply will be able to be left on for long periods of time?

Title: Re: Using a Regulated 13.8v Power Supply
Post by: drben on November 04, 2007, 02:11:30 am

absolutely, should be no problem at all. Good luck with the build :)

Title: Re: Using a Regulated 13.8v Power Supply
Post by: Sparky2323 on November 05, 2007, 05:56:33 pm

Thanks for the help.   ;)

Title: Re: Using a Regulated 13.8v Power Supply
Post by: Barry Barcrest on November 08, 2007, 08:02:47 pm

Remeber the higher number is the limited time output and the lower number is the continuos use output. So trhe 3-5amp ones are really 3 amp contiumous. I used to have a 13 amp one of these back when i used a CB Radio and it was pricey, had quite a loud hum to it and was heavy. I blew a couple of 3-5amp ones up because i was pulling to much current off them... Just thought i would mention that, i don't really know if it will effect your decision.