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SMSL A100 Review (Stereo Amplifier)

Rate this amplifier:

  • 1. Poor (headless panther)

    Votes: 33 18.6%
  • 2. Not terrible (postman panther)

    Votes: 99 55.9%
  • 3. Fine (happy panther)

    Votes: 43 24.3%
  • 4. Great (golfing panther)

    Votes: 2 1.1%

  • Total voters
    177

hzwjh

New Member
Joined
Jun 29, 2022
Messages
1
Likes
0
A100 有错误。我有一台安装了 Daphile 的电脑,pc usb 到 a100 usb,cd rca OUT 到 100 aux。当我将a100从usb切换到aux时,电脑将关闭,无法工作

A100 has bug. I have a pc installed Daphile , pc usb to a100 usb ,and cd rca OUT to a 100 aux. when I switch a100 from usb to aux ,the pc will down,cannot work
 
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nsfgp

Active Member
Joined
Dec 27, 2020
Messages
163
Likes
140
Anyone knows if the SMSL DA-6 uses MA12070 or something different??

Text desc. "SMSL has featured a German imported Infineon’s newly-designed silicone carbide class D power amplifier chip".
It is definitely not the MA5332 series. But most if not all current products using MA12070 on the market specifies MA12070 and does not hide it in the product text.
Just curious.
 

Joe Smith

Senior Member
Joined
Jan 4, 2019
Messages
418
Likes
419
I hope someone sends Amir the newer AO100 amp. I'm quite enjoying mine. Nice little amp, I ordered it to get the integrated BT down in my dining room. I think it might measure a bit better than the A100.
 

dr_mick51

Active Member
Joined
Mar 12, 2022
Messages
108
Likes
86
I hope someone sends Amir the newer AO100 amp. I'm quite enjoying mine. Nice little amp, I ordered it to get the integrated BT down in my dining room. I think it might measure a bit better than the A100.
From the pictures I've seen it looks identical to the SMSL DA-6 except the internal Power Supply and tone controls opamps (2xTL072c).
The main opamp on both is the NE5532

smsl-ao100-amplificateur-class-d-infineon-ma12070-bluetooth-50-2x70w-4-ohm (4).jpg
smsl-da-6-class-d-amplifier-infineon-2x70w-4-ohm-black.jpg



But the A100 uses the OPA1678

IMG_20220322_081538.jpg



If you compare the Multi-Tone test and "omit" frequencies beyond 10KHz for the A100 and the DA-6 you can see the A100 has a much lower noise floor and a cleaner FFT. The DA-6 is no match to the A100:

A100 vs DA-6.png


Even thou if we include all the audible range, the A100 has a 76dB (average) SINAD compared to 81dB on the DA-6(using even 3dB less Gain/higher input signal voltage) I don't know but prefer the A100 (32 Multi-Tone test beats the 1KHz THD+N test).
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