| enzie |
My project was frozen for about two years until I found this forum and all the posts about how good the sound quality with these chips were :happy1:. So after a few months DIY'ing my project is finally almost finished and I decided to introduce it. It's a stereo setup at the moment but there's space for 4 more amp modules and another power supply...
It's based on the schematics found here. The trafo is a 2x25V 630VA with snubberized power supply based on the carlosFM desing.
Here's some pictures. |
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| sek |
Hi,
were you participating in the 'group buy' on the forum in poland?
Sorry, can't understand the thread you linked to... :D
Or did you etch the boards yourself from the tested layout?
Can you compare to other gainclone circuits/concepts?
Anyways, how does it sound? ;)
Cheers,
Sebastian. |
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| enzie |
| I made a few layout changes to the pcb and then etched them myself. I have been listening 'em for a few hours now and it sounds quite good.. I'll have to test it with different kind of music. And I am feeding the amp from the Yamaha rxv-440 Headphone socket so with a real preamp it'll propably sound much much better =).. |
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| enzie |
| and pic from the inside. |
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| G4ME |
looks very similar to the idea i have in my head for my stereo 2 way w/ active cross over.
BTW how come you didn't use the ground on the IEC connector? |
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| GregGC |
| quote: | Originally posted by enzie
I made a few layout changes to the pcb and then etched them myself. I have been listening 'em for a few hours now and it sounds quite good.. I'll have to test it with different kind of music. And I am feeding the amp from the Yamaha rxv-440 Headphone socket so with a real preamp it'll propably sound much much better =).. |
Very nice work.
Why don't you put 50k pot and drive it directly from the CD player? The pre of the Yamaha is not very good.... Personal experience.
Greg |
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| enzie |
The IEC ground is connected to chassis but it's hard to see in the pictures.
I am planning to keep this as a power amp design so I won't be using any pots here. But I am planning to make a proper pre-amp for this as soon as I find some good design that suits my needs. |
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| rabstg |
I don't see a fuse on the pwr input.
All else looks good.. I like the short RCA and spkr leads.
In-line fuse for safety please. |
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| whoa |
| quote: | | and pic from the inside. |
oh my! :cool:
nice heatsink :devily:
nice trafo :devily:
nice amp!!! :cheerful: |
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