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Old 6th November 2008, 07:11 PM   #1
valo is offline valo  Norway
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Default need ideas for a amp

Hi Folks i guess this is an duble post but maybe someone in the Pass Labs forum can help me ..

I have alot of nice parts under my bed

40 pcs of Rifa PEH169 15000uF/40V
100 pcs IRFP450 from Harris
50 pcs MUR3060 diodes
a bunsh of opa541 and 549
A new toroid 2x21V /1000VA
and lots of small transistors and resistors

So what can I make of this ?, i have been thinking of a 5CH amp but i cant find any circuts that i can use my parts in.

Iam thankfull for all the help i can get, and sorry for my spelling
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Old 6th November 2008, 08:34 PM   #2
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Sounds like a nice +/-30v power supply. You can build a hot single-ended
Class a amplifier with that and those N channel devices.

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Old 6th November 2008, 08:54 PM   #3
juma is offline juma  Serbia
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Hi valo,
you can use those OPA549 in something like this - great bass (and not only):
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File Type: gif sysy-inv-opa549.gif (26.7 KB, 193 views)
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Old 6th November 2008, 08:57 PM   #4
valo is offline valo  Norway
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Quote:
Originally posted by Nelson Pass
Sounds like a nice +/-30v power supply. You can build a hot single-ended
Class a amplifier with that and those N channel devices.


Thanks for the reply Nelson..

singel-ended sounds cool to me , but its hot .. one of the first diy projects i was looking at was the Son of Zen but i did never build it, the problem was the heat and the big power supply that is needed.

Not how mutch power i get in an 2ch son of zen amp whit +/- 30v and 1000va
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Old 6th November 2008, 09:03 PM   #5
valo is offline valo  Norway
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Quote:
Originally posted by juma
Hi valo,
you can use those OPA549 in something like this - great bass (and not only):

Thanks Juma

I have never tested opa549 as an audio amp, but i have made alot of opa541 "gainclones" and i like the sound

my last 541 amp did look like this..
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File Type: jpg opa541.jpg (46.0 KB, 188 views)
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