And to all:
Be careful with mains voltage!!
Be careful with mains voltage!!
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Show posts MenuQuote from: joecool85 on June 15, 2006, 10:47:03 AMI was driving my 412 @ 16 ohms last time I had it plugged in.
I'm using mine as a PA and driving a dean markley 1x10. I can't vouch for a 2x12 or 4x10. I think RDV is using his on a 2x12 though.
Quote from: teemuk on June 15, 2006, 11:39:37 AMIf I ever use a DIY chipamp for gig purposes it will be fan-cooled. I doubt it ever happens though. There's too many inexpensive commercial amps out there. I just use them as stereo equipment and practice amps.
I wouldn't trust only on heatsinking a high power amplifier in gig situations. The ambient temperature on stage is huge. It's safe to assume the power dissipation might start from heatsink temp of 40 degrees of celcius not nominal 25.
Quote from: joecool85 on June 15, 2006, 09:04:10 AMThe only way you'll overheat that one is to actually outdo the heat transfer rate. It's possible with a 4 ohm load but unlikely with an 8 ohm load. The Spike protection would finally kick it at that kind of level.
I didn't bother on mine since it is so huge, plus I wanted a simple solution. And there is nothing more simple for a heatsink than just grabbing the biggest one you can afford and bolting a chip to it lol.
Quote from: lliw on June 15, 2006, 11:17:49 AMYou'll need a wah for MFN. Nothing else does it. Sorry.
Sounds good but i dont have a wha pedal.
Is their any particluar box that i could make to get the sound?
like a cirtan type of overdrive?
Quote from: DreamSeller on June 15, 2006, 04:13:32 AMDefinitely keep that stuff, it has all kinds of uses. Audio & otherwise. I just ran out of it myself cause I've been making DIY stereo speakers and subs. I'm on the lookout for more.
Does anyone do this. I was at work last night and new cash registers came in, They were packed in the wavy foam stuff that looks just like the sound proof foam, I figured I might as well give it a go since it wont cost me anything.
Does anyone here use the stuff on the inside of their cabs etc.
Quote from: skey on June 14, 2006, 11:36:54 PMThe one in the 1st picture does not take advantage of thermal airflow(though it's big enough to not need it), but the 2nd one is outside the cabinet. How much airflow do you need? It's in free air.
Neither of the above heatsinks above seem to take advantage of thermal airflow.
Sometimes smaller is better if it's less bulky. Is there any convenient way to figure out a useful minimal size you'd need?