Finished my 8 channel HTPC amp

[more10]

After 1½ years I finally finished my surround amp.

I have discussed and reported in Swedish on another forum, http://www.warp7.se/forum/viewtopic.php?t=566.

There are pictures on these pages: http://www.warp7.se/forum/viewtopic....r=asc&start=90, http://www.warp7.se/forum/viewtopic....=asc&start=180, http://www.warp7.se/forum/viewtopic....=asc&start=195, http://www.warp7.se/forum/viewtopic....=asc&start=210, http://www.warp7.se/forum/viewtopic....=asc&start=225

Now I just have to get 7.1 surround working on my OpenSUSE 11.1 :-). And of course a 41Hz amp for the subwoofer.

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I'll shortly put all the images here, thought it could not be done :-)

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Box before assemblying the thing

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During assembly.

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Finished result

[Scratchy]

Very nice build, lots of attention to detail.
I especially like the case.
You must own a machine shop?

It looks like you had all the aluminum black anodized as well.
How does it perform and sound?
What speakers are you driving with this?


***It's so easy, everyone should be doing it***

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No I don´t. My friends do. We meet once a week an do hobby stuff. I didn't do the anodizing myself, it costed 40 euros.

Preliminary testing with old 8 ohm loudspeakers didn't reveal any big mistakes. When playing one channel at a time, other channels not connected on input, one channel sounded real bad, like bad earth connection. Then I blew the main fuses. I havn't tried that side yet since the failure. But before blowing the fuse I could barely be in the same room when input protection set in. Input protection is very sensitive to base controls. I believe that if I implement a subwoofer filter, this amp will be able to play as loud as one can wish in an apartement.

I will be using homebuild speakers with Jordan JX92S. At the moment I only got a pair of them.

[V-bro]

[8D]Very nice amplifier More10!![8D]

Also very nice sockets there in the back!

I hardly dare to say, but I only could comment on the switches. They could have been nicer looking perhaps...

In the centre of the tranny there's epoxy and a teenut, did you do that yourself or was that standard?

------X-max. can be several meters on any driver, too bad it can be done only once...------

[djQUAN]

the epoxy potting is probably standard. I'm not sure with the tee nut. [:P]

I don't think amp9 will get hot or even warm with that very nice case. I'm too impatient to wait 1.5 years to make an amp hehehe

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quote:Originally posted by V-bro

[8D]Very nice amplifier More10!![8D]

Also very nice sockets there in the back!

I hardly dare to say, but I only could comment on the switches. They could have been nicer looking perhaps...

In the centre of the tranny there's epoxy and a teenut, did you do that yourself or was that standard?

------X-max. can be several meters on any driver, too bad it can be done only once...------

Well one of my friends at the garage also object to the switches. But I like the retro look. No modifications to the tranny. It is an Elfa 56-139-22, http://www.elfaelektroonika.ee/cgi-b...132-52&lng=eng