Probably wrong thread, but I picked up the following to try, very little $$:
Elna SILMIC II (audio type)
Nichicon UKT (audio type)
Nichicon UVZ
BK
Probably best If I start from the beginning -
Bought a cheap amp (Cambridge Audio AM1) because I blew a channel in my Onix OA21 and was quite surprised by the sound quality this little amp produced. The AM1 uses a JRC4558D chip per channel followed by a LM4766T chip for the power amp.
The bass is much tighter than the Onix, mids are similar but the Onix beats it for high frequency detail. So I'm looking for an amp with the bass of the AM1 and highs at least as good as the Onix.
I've been searching chip amp kits for the last couple of days (Myref and Modulus 86 have looked the most interesting so far) and have just come across this group buy.
Am I right in thinking this PCB has a preamp built in? That's a big plus for me if that's the case.
Is there a list of other things I'd need to finish the amp? Case, volume pot, transformer etc.
Bought a cheap amp (Cambridge Audio AM1) because I blew a channel in my Onix OA21 and was quite surprised by the sound quality this little amp produced. The AM1 uses a JRC4558D chip per channel followed by a LM4766T chip for the power amp.
The bass is much tighter than the Onix, mids are similar but the Onix beats it for high frequency detail. So I'm looking for an amp with the bass of the AM1 and highs at least as good as the Onix.
I've been searching chip amp kits for the last couple of days (Myref and Modulus 86 have looked the most interesting so far) and have just come across this group buy.
Am I right in thinking this PCB has a preamp built in? That's a big plus for me if that's the case.
Is there a list of other things I'd need to finish the amp? Case, volume pot, transformer etc.
I added a volume pot to the PA-03. Working just fine without the preamp. Opamps used are the metal-can LME49710.
I went with compact and all-black theme to match the board. Build complete and sounding mighty fine with some 4ohm test speakers and balanced inputs.
200VA 2x24V shielded trafo. Big surplus inlet filter. Carefully matched resistors. ~10mV DC offset. On the bench the heatsink/chip stabilized at 42C. Cased up, 50C after several hours. All seems well.
Thanks to PA and PD for the great board/design!
BK
200VA 2x24V shielded trafo. Big surplus inlet filter. Carefully matched resistors. ~10mV DC offset. On the bench the heatsink/chip stabilized at 42C. Cased up, 50C after several hours. All seems well.
Thanks to PA and PD for the great board/design!
BK
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Thank Upupa Epops. It's his work, not mine. Excellent looks of your amp. 5 stars.