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-   -   WTB: Aleph Amp complete (http://www.diyaudio.com/forums/swap-meet/79813-wtb-aleph-amp-complete.html)

Fishfood 18th May 2006 08:17 PM

WTB: Aleph Amp complete
 
Although I don't have the technical expertise yet to build an Aleph 3 myself, I am in love with the amps. I had such a good experience buying a GainClone amp from a DIYer, I thought I'd see if anyone had a completed DIY Aleph 3 to sell. I may also be interested in the Aleph Mini, although I'm not sure they have enough to drive the Quads...

elviukai 19th May 2006 07:26 PM

thre are very litle knowledge required if you will have dedicated pcb with detail description. I suppose you can solder,and match mosfets.. this will make lot of fun(in case everything goes right) and tears( in case you will blown something) but final joy will be double as well..
remember building by yourself you can use very high quality parts, original comercial design or diy for comercial reason(or reason to build to someone) most likely will be lower quality..

jleaman 19th May 2006 08:15 PM

I might be able to help.. Are you sue you want a aleph 3 ? Do you need 30watts of Class A Power ?

Fishfood 19th May 2006 10:18 PM

Now it's an Aleph 30, really
 
I just emailed a friend who knows a guy who used the Quads with Aleph 0's and didn't like the match. He said: "The problem rather seems, that that amp doesn't have a servo to null output offset. So the DC at the output, though remaining below 200mV at all times, influences the audio xformer in the quad, compromising sound quality." So I think I am looking for a DIY Aleph 30, rather than a 3, since I know that the 30 recommended by some for use with the Quads. Do you have something that could work?

I think the speaker can handle what ever power you give it as long as it's stable. I know of one shop that sell Pass X-250s to Quad owners all the time.

God, I wish I could go back to school and get an EE degree and know what all this stuff means. The stuff you guys build is just so incredible.....

jleaman 19th May 2006 10:37 PM

Re: Now it's an Aleph 30, really
 
Quote:

Originally posted by Fishfood
I just emailed a friend who knows a guy who used the Quads with Aleph 0's and didn't like the match. He said: "The problem rather seems, that that amp doesn't have a servo to null output offset. So the DC at the output, though remaining below 200mV at all times, influences the audio xformer in the quad, compromising sound quality." So I think I am looking for a DIY Aleph 30, rather than a 3, since I know that the 30 recommended by some for use with the Quads. Do you have something that could work?

I think the speaker can handle what ever power you give it as long as it's stable. I know of one shop that sell Pass X-250s to Quad owners all the time.

God, I wish I could go back to school and get an EE degree and know what all this stuff means. The stuff you guys build is just so incredible.....


Well i have heard lot's of these pass design's that we all use. But till this day i still like my 15 watt mini a's. I have 8 of them. 4 smd and 4 Through hole. I have run some pretty big speakers with them and they still have enough power to deafin you're self. :) What kind of speakers do you run? How efficient are they ?

Pictures > http://gallery.jasesspace.com/main.php?g2_itemId=379

mpmarino 20th May 2006 04:18 AM

Quote:

God, I wish I could go back to school and get an EE degree and know what all this stuff means. The stuff you guys build is just so incredible.....
Don't be rediculous:) ya don't need an EE to build an aleph! Start with a mini A, It's very satisfying;)

jleaman 20th May 2006 04:54 AM

This is the SMD Mini Aleph. I just built 4 :)

http://gallery.jasesspace.com/main.php?g2_itemId=487

elviukai 20th May 2006 06:19 AM

to create amp like nelson does electronic engineering degree is not enought. to build amp also you dont need electronic engineering. I am medicine doctor and found myself pretty comfortable with building amps,and very comfortable when designing speakers :) I wuold say- go for it. there is plently of detailed plans how to build,if you will not find ask for Grolins, and others thay are very nice and helpful guys :smash:

Fishfood 20th May 2006 06:23 AM

I am using rebuilt Quad ESL57s, which present an odd load in that apparently they can drop to 1 ohm at times.

15 watts can be enough, though. Can you bridge the Aleph mini's for mono? It would be cool to run a pair.

Are yours in cases? The only pictures are of circuit boards.

elviukai 20th May 2006 06:43 AM

I had quad esl 57 6years ago, rebuil by german technican with mylar foils and rebuilt power suplies. great speakers for chamber music. you will not reach any adectvate SPL in room with big orchestras records with any amp, as soon as panels gets 33Volts or so (believe me this will happen earlier than you can imagine) foil is burned and damaged and you will get crackling noise. esl 57 is not very sensitive speakers. particulary quad 303 did great job with them. I didnt have aleph at that time but I suppose they would be much more better.


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