Smallest not class D stereo power amplifier?

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RolandButcher

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Re: Smallest not class D stereo power amplifier?
« Reply #20 on: 9 Apr 2018, 03:08 am »
Clones Audio 25p (25 Watt Power Amp).  I don't think they make it anymore, so look for a used one.  But they still make monoblocks and an integrated.  Dimensions of the power amp is 170mm(w) x 100mm(h) x 170mm(d).  https://www.clonesaudio.com/

FullRangeMan

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Re: Smallest not class D stereo power amplifier?
« Reply #21 on: 9 Apr 2018, 03:55 am »
These Clones seems Class D amps.
There is an integrated and an pre/power both 25W.

P.S.> after a web search found Clones are chip amps.
The integrated 25W amp cost 8,799 HKD or 1,120 USD Gulp!
After ship and Customs will cost even more.
« Last Edit: 9 Apr 2018, 06:10 am by FullRangeMan »

poseidonsvoice

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Re: Smallest not class D stereo power amplifier?
« Reply #22 on: 9 Apr 2018, 09:15 am »
These Clones seems Class D amps.
There is an integrated and an pre/power both 25W.

P.S.> after a web search found Clones are chip amps.
The integrated 25W amp cost 8,799 HKD or 1,120 USD Gulp!
After ship and Customs will cost even more.

Yes, these are Class AB based on the LM3875 chip. Very standard implementation, nothing special that “Clones” has done. Thousands of these can be found on diyaudio or Peter Daniel’s implementations.

A good “second” or “third” amp.

https://www.soundstageaccess.com/index.php/equipment-reviews/758-clones-audio-25ir-integrated-amplifier

Parts cost outside of chassis is about $100 max for stereo. For integrated, I would say $150-$200 max.

Best,
Anand.

artur9

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Re: Smallest not class D stereo power amplifier?
« Reply #23 on: 10 Apr 2018, 01:59 am »
Hard to find a finished LM3875 amp because of all the DIY stuff.  I admire the enthusiasm but DIY is not for me.

What do you see as the deficiencies of the LM3875? 

poseidonsvoice

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Re: Smallest not class D stereo power amplifier?
« Reply #24 on: 10 Apr 2018, 08:50 am »
Hard to find a finished LM3875 amp because of all the DIY stuff.  I admire the enthusiasm but DIY is not for me.

What do you see as the deficiencies of the LM3875?

The only implementations of the LM3875 I have seen are basically standard issue, non-composite, non-nested feedback implementations, which are basically “gainclone” types. In those gainclone implementations, the LM3875 lacks detail, power and authority compared to the LM3886 in an equivalent gainclone circuit.

Best,
Anand.

artur9

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Re: Smallest not class D stereo power amplifier?
« Reply #25 on: 29 Apr 2018, 09:39 pm »
Having no luck with my quest.

Just out of curiosity are there any tiny 1000W Class D amps out there?