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S.M.S.L A12 anybody?

dealpapa

Member
Joined
Sep 5, 2021
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Everybody wants TPA3255

nobody try Infineon's MA12070 chip?

Dear Ctiger said:
5.0 out of 5 stars Way better than expected
Reviewed in the United States on September 2, 2021
Verified Purchase
I was looking for an inexpensive amp for a second system powering some outstanding NHT speakers. I figured this unit would be marginally better than the AD18 powering my television speakers. What sold me on this amp is the Infineon chip that is used in much higher priced amps. I considered the well reviewed Aiyima A07, but without digital inputs it would need an external dac. The SMSL A12 HAS A usb input meaning an internal dac. Frankly at a $90 price I didn't expect the dac to be very good, so when I hooked my amp up to my system I decided to try the usb port thinking I would eventually use my Soundavo dac into the rca input. As soon as I turned it on I was wowed by the spaciousness, tonal accuracy and solid bass coming from my speakers. Sound signature is natural and dynamic. It sounded so good I decided to try it in my main system powering Elac Debut Reference speakers. These speakers can sound a little bloated but with this little amp they became very resolving with a large sound stage and great instrument separation. The internal dac is surprisingly good, and is probably worth the price on its own. I am amazed you can get such quality sound for so little. Solid five stars. Well done SMSL!
 

dr0ss

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Aug 18, 2021
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There have been several amps discussed here based on the same chip: SMSL DA9, Loxjie A30, Sabaj A20, and a few others. Search this site for "MA12070 " for lots of fun reading.

The A12 might be a heck of a deal for a bare-bones power amp, depending on the build quality.
 

GeekySimar

Member
Joined
Jan 11, 2021
Messages
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3
I got SMSL A12. It is awesome, its just bare bone amp without fancy things.
But I am facing one problem, at higher volume and high Bass setting there is clicking sound coming out of the speakers.

I am trying to debug it and have reported to SMSL as well.

Lets see.

Thanks,
Simar
 

ModDIY

Active Member
Joined
Mar 26, 2020
Messages
281
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123
I got SMSL A12. It is awesome, its just bare bone amp without fancy things.
But I am facing one problem, at higher volume and high Bass setting there is clicking sound coming out of the speakers.

I am trying to debug it and have reported to SMSL as well.

Lets see.

Thanks,
Simar

What I think you are reaching the maximum power of the amp.

What is the impedance of your speakers as well as the efficiency?
 

Pdxwayne

Major Contributor
Joined
Sep 15, 2020
Messages
2,271
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781
Hmm, I wonder how they can claim THD+N: 0.005% with measurements like this (from Amazon):

f293bf18-6b61-486d-9899-0b58fb01fc7f.__CR0,0,300,300_PT0_SX300_V1___.jpg
 

Zek

Addicted to Fun and Learning
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Feb 17, 2018
Messages
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Does anyone know which DAC chip is on the USB port and what is the maximum sample rate.
 
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