Crescendo ampilifier elektor1982 - diyAudio
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Old 22nd May 2003, 11:40 PM   #1
Bensen is offline Bensen  Belgium
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Thumbs up Crescendo ampilifier elektor1982

Hello everybody,

I'm new here.
I almost have finished my Crescendo amplifier. It took me 5years to build this beast.
It uses 2x (2 x 2sk135 en 2x 2sj50) mosfet's from Hitachi. You can visit my homepage, where you can find some foto's. In the same enclosure, I builded also 4 smaller amplifiers. The supply consists of 3 toroidal's from 500VA each and a total of 130000µF on capacitors.

http://groups.msn.com/BenJanssenBensen's homepage
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Old 23rd May 2003, 02:21 AM   #2
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Default The box!!

Hi benson!!

The box of your amp look like the box of the Counterpoint SA220...

Congratulations...nice work

Cheers
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Old 23rd May 2003, 09:01 AM   #3
Bensen is offline Bensen  Belgium
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Thanks.

I build the case totaly by my self. It is made of small iron L-profiles, 20mm x 20mm. All the prints and the case are designed and builded by me. Except the frontpanel. This will be made of a mirror.
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Old 15th July 2005, 03:11 PM   #4
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Have you the elektor paper still???
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Old 15th July 2005, 03:22 PM   #5
Electrons are yellow and more is better!
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I have both the english and the swedish articles.... some where it must add.

Bensen, nice job.
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Old 15th July 2005, 03:32 PM   #6
DirkD is offline DirkD  South Africa
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Hi there

I would be very interested to hear your comments on sound quality of the Crescendo amplifier, because I found it somewhat gritty and grainy.

Regards

Dirk
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Old 15th July 2005, 04:53 PM   #7
Bensen is offline Bensen  Belgium
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Well, I can't really compare this amp with many others. But I've build also the crescendo ME with the newer output devices. And my opinion is that the "old" amp sounds better than the new one.

I can't realy describe how it sounds. I think this comes from these devices, many say that these are one of teh best audio MOSFET's ever made.

One question,
C
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Old 15th July 2005, 04:57 PM   #8
Bensen is offline Bensen  Belgium
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Oops sorry,

One question: Can anybody explane me the difference between Audio mosfet's (2s51530/2sj50/2sk1058....buz900...) and the regular mosfet's (IRFP9240/9140/240/140...).
Because I'm designing a new amp, and I can't choose between BJT's (MJL4281/4302) and the cheap IRFP.... devices.


Thanks
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Old 15th July 2005, 05:45 PM   #9
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Är du svensk, jag letar efter Crescendo MOSFET 250W??

Har du den byggbeskrivningen?
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Old 15th July 2005, 05:45 PM   #10
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Someone that has the artical about Crescendo MOSFET 250W??
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