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Can anyone check this picture of amp for me? Thanks!

post #1 of 15
1/13/11 at 9:18am
Thread Starter 

Hey guys,

I found a DIY amp maker in a shop nearby my place, and he claimed to be making high performance:ratio amps.

So heres a solid state im interested in, which he said is neutral, transparent and fast.

 

From the picture below, can people tell if the components are good or not?

 

sports.wear-img600x450-127769837158088705-6.jpg

 

He said he used: BB OPA2132, and ON Semiconductor NJE 340 350

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post #2 of 15
1/13/11 at 6:01pm

I guess it all depends on the price you are paying.  It would be nice to see the back end of the amp too where the trafo is.

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post #3 of 15
1/13/11 at 8:05pm
Thread Starter 

Heres the back, but the roll of wire (dunno whats it called...) don't have a picture...He says he makes that himself.

sports.wear-img600x450-1280925477783052____0011-6.jpg

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post #4 of 15
1/13/11 at 8:25pm

I say without seeing this "Roll Of Wire" that it's a Toroidal Transformer??? 

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post #5 of 15
1/13/11 at 9:59pm
Any way you can get the schematic from him?

It is possible to use high-grade components in a lousy or mediocre circuit. Putting the finest components into a bad circuit results in bad sound.

I'm not saying that's the case here, but the circuit itself is more important than the parts in it. You're better off with cheap parts in a great circuit than great parts in a bad circuit. I'm hoping you've found a great amp at a good price.
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post #6 of 15
1/14/11 at 12:16am
Thread Starter 

Right guys, I just requested those information from the maker, he should be replying in a day or two. Oh, he said this was based on the Lehmann black cube linear.

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post #7 of 15
1/14/11 at 1:30am
Thread Starter 

I hope so too):

I'm dirt poor at the moment...only a student.

Wait...so the components the guy used is quite good?
 

Quote:
Originally Posted by Uncle Erik View Post

Any way you can get the schematic from him?

It is possible to use high-grade components in a lousy or mediocre circuit. Putting the finest components into a bad circuit results in bad sound.

I'm not saying that's the case here, but the circuit itself is more important than the parts in it. You're better off with cheap parts in a great circuit than great parts in a bad circuit. I'm hoping you've found a great amp at a good price.
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post #8 of 15
1/14/11 at 3:09am
Quote:
Originally Posted by Xymordos View Post

Heres the back, but the roll of wire (dunno whats it called...) don't have a picture...He says he makes that himself.

sports.wear-img600x450-1280925477783052____0011-6.jpg


 

No no, I meant the inside back, so we can see the trafo.

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post #9 of 15
1/14/11 at 3:12am
Thread Starter 

^Yeah...contacted him to send me pics. Hasn't replied yet though.

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post #10 of 15
1/14/11 at 3:13am

 

If it's based on the Black Cube Linear (what does based-on mean?  copied/stolen?) then it could sound pretty good since the BCL has gotten good reviews.  But "based-on" could mean a lot of things.  "Stolen" could mean yet another.  Hopefully it's neither a cheap version of the former and no form at all of the latter, as that's unethical.

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post #11 of 15
1/14/11 at 3:43am
Thread Starter 

Nah, he said he looked at the BCL's circuits and used it as a guide. So I don't think its stolen, probably changed a few things.

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post #12 of 15
1/14/11 at 6:56am

Yeah, its a scaled down baby Lehmann circuit.  That circuit board comes as a kit for about 50 bucks on ebay.  You shouldn't be paying a dollar over 200 bucks for this thing because 260 bucks gets you the full sized Lehman circuit in a case and all.  Sold as the Matrix M-stage.  I'm not of the opinion that Lehmann clones perform at the same level of the genuine unit either, which retails for about 1K.  All these Lehmann circuits floating on ebay are stolen designs.

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post #13 of 15
1/14/11 at 7:47am
Thread Starter 

This one is sold at $100

I think I'm going to test this one and the E9 and some cables for my ER4p tomorrow. Not sure yet.

But I think at $100 it is reasonable for its price.

 

And this guy makes everything himself, his site is selling A LOT of other amps, I doubt he got it off ebay. He only studied the amp as he said on his site.

http://www.impulse-audio.net/


Edited by Xymordos - 1/14/11 at 4:00pm
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post #14 of 15
1/15/11 at 11:43pm

Looks like it came from ebay:

 

http://cgi.ebay.com/LOVELY-CUBE-Headphone-Amplifier-KIT-Economy-Edition-/190488758142?pt=LH_DefaultDomain_0&hash=item2c5a03c77e#ht_4526wt_1002

 

But still looks like pretty good value as the case and transformer are a substantial part of the cost.

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post #15 of 15
1/16/11 at 12:33am
Thread Starter 

wow...they look... the same.

Anyone tried that before?

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