cadence amp

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hello . my english bad .

ı have cadence a2000+ zed audio

this amp is work . no problem
but I want change output transistors . because

channel 1 output fet 2x buz103
ch 2 output fet 1x buz103 1x irf540
ch 3 output fet 2x irf640
ch 4 output fet 2x irf640

what is the original output fet this amp ? buz103 buz11 ?
orijinal output fets brand motorola ?
 
This amp is interesting to me. It sure is a Zed Audio built amp but doesnt actually say Zed audio. i can tell by all the proprietary NW and PROT circuits. Interesting since I've seen a few Maxxonics brand Cadence amps; this one is not like ones ive seen.

As for BUZ11/103, I'm sure Perry would be the difinitive source for an alternative. I've seem similar parts in RF amps which use Buz11/103 a year or generation before RF switched to IRFx40/9x40.

What are you seeing for rail voltage?
 
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ı want to say my amp is already working.. that's 8 transistor are different model . ı am thinking if ı change transistor (all of them same models transistor or high quality with compatible transistors )

maybe it's gives to high quality sound .

what is your opinion about my mind ?
 
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