loudNlow87 Posted January 15, 2014 Report Share Posted January 15, 2014 I'm gonna build a little radio for work, and as a small project for the hell of it.. Just a headunit and possibly small 2-channel amp. By small I mean 100w x 2 or less. Would something like this be sufficient to power it? http://www.parts-express.com/12v-dc-29a-348w-regulated-switching-power-supply--320-315 Any help would be great! Hard topic to search on here. All I find are PC units and I'm not looking to dick around with those. '11 Jeep Patriot New Build Head Unit: Pioneer AVH-P3200DVD Front: Massive CK69 Components Front Amp: Massive NX2 Rears: Infinity Kappa's Subs: 8 Sundown SA-8 v2's Sub Amp: AB 450.1 XS D3100 Come on 150! Link to comment Share on other sites More sharing options...
S15_Silvia Posted January 15, 2014 Report Share Posted January 15, 2014 I think that would be fine if you're not going to be cranking the volume all the way up. Obviously the amp isn't operating at 100% efficiency, so it will be pulling more than 200W to output that 100Wx2. 2016 Subaru BRZ | Sony XAV-AX100 | Rockford Fosgate DSM 4080 & DSM 40ix | On 6/6/2012 at 6:32 PM, 'LZTYBRN' said: 3. Don't put speakers outside the car unless you are the ice cream man. My feedback thread Link to comment Share on other sites More sharing options...
Guest Posted January 15, 2014 Report Share Posted January 15, 2014 • Output power: 12 VDC, 29A amp should have nothing more than 30 amps of fusing on it. otherwise you're probably going to trip the protection all the time with a bigger amp since you wont know how much current you're drawing Link to comment Share on other sites More sharing options...
loudNlow87 Posted January 15, 2014 Author Report Share Posted January 15, 2014 Thanks.. That's why I ask. I'll spend the little extra coin if someone has a better route. I just wanna stay clear of sketchy computer PSU's. I've burnt one up and read plenty more horror stories. I'll be leaving this thing at work. So I don't want to risk fires and shit. '11 Jeep Patriot New Build Head Unit: Pioneer AVH-P3200DVD Front: Massive CK69 Components Front Amp: Massive NX2 Rears: Infinity Kappa's Subs: 8 Sundown SA-8 v2's Sub Amp: AB 450.1 XS D3100 Come on 150! Link to comment Share on other sites More sharing options...
jk13 Posted January 15, 2014 Report Share Posted January 15, 2014 Add the fusing together of the amp and HU and if it's less than 29 you should be fine. Either way add a small battery or the power supply won't last as long. I'm doing the same in the hutch of my tool box. 30 amp Tripp Lite power supply~scooter battery~small Kenwood old school two channel~PG RSD6 components in a ported fiberglass box suspended from the ceiling of the hutch. Using iPod as input. All gear is take outs from customer vehicles. Static drops are my bag. Link to comment Share on other sites More sharing options...
loudNlow87 Posted January 15, 2014 Author Report Share Posted January 15, 2014 But the head unit shouldn't be drawing anywhere near its fuse rating if using an external amp, no? Just sending a low level signal to the amp. '11 Jeep Patriot New Build Head Unit: Pioneer AVH-P3200DVD Front: Massive CK69 Components Front Amp: Massive NX2 Rears: Infinity Kappa's Subs: 8 Sundown SA-8 v2's Sub Amp: AB 450.1 XS D3100 Come on 150! Link to comment Share on other sites More sharing options...
biscuitownz Posted January 15, 2014 Report Share Posted January 15, 2014 I've been using a ps3 power supply to power my RF 250.1 in my room at 1ohm for 2 years or so and it has no problems whatsoever. It's rated at 32A at 12V. You can get them for about $10 on ebay too. Don't mind the test probes going to the amp, was testing something earlier. Link to comment Share on other sites More sharing options...
loudNlow87 Posted January 15, 2014 Author Report Share Posted January 15, 2014 I've been using a ps3 power supply to power my RF 250.1 in my room at 1ohm for 2 years or so and it has no problems whatsoever. It's rated at 32A at 12V. You can get them for about $10 on ebay too. Never thought of this.. Does it get pretty warm? I've heard of people using the brick from an Xbox.. But they said it started making loud noises under load after time and heated up a bit '11 Jeep Patriot New Build Head Unit: Pioneer AVH-P3200DVD Front: Massive CK69 Components Front Amp: Massive NX2 Rears: Infinity Kappa's Subs: 8 Sundown SA-8 v2's Sub Amp: AB 450.1 XS D3100 Come on 150! Link to comment Share on other sites More sharing options...
biscuitownz Posted January 15, 2014 Report Share Posted January 15, 2014 I've been using a ps3 power supply to power my RF 250.1 in my room at 1ohm for 2 years or so and it has no problems whatsoever. It's rated at 32A at 12V. You can get them for about $10 on ebay too. Never thought of this.. Does it get pretty warm? I've heard of people using the brick from an Xbox.. But they said it started making loud noises under load after time and heated up a bit It's slightly warm to the touch, although there are times when I've pushed it so hard that it was burning hot, it still kept playing though. I don't even have a fan on it, so I'm sure with a fan it wouldn't get warm at all. The xbox bricks aren't as beefy as the ps3 psus are. I used to reflow consoles so I got to tear a bunch of them apart Link to comment Share on other sites More sharing options...
biscuitownz Posted January 15, 2014 Report Share Posted January 15, 2014 I've been using a ps3 power supply to power my RF 250.1 in my room at 1ohm for 2 years or so and it has no problems whatsoever. It's rated at 32A at 12V. You can get them for about $10 on ebay too. Never thought of this.. Does it get pretty warm? I've heard of people using the brick from an Xbox.. But they said it started making loud noises under load after time and heated up a bit Double post Link to comment Share on other sites More sharing options...
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