This is a review and detailed measurements of the AIYIMA A200 stereo amplifier with USB DAC and Bluetooth. It was sent to me by the company and costs about US $160.
The compact size should fit on desks well. Controls are simplicity in themselves: push in the volume control to select input (RCA or Bluetooth/USB). Rotate for volume.
Nice to see built-in power supply unlike other AIYIMA offerings that required large external ones. Design is based on TI TPA3255 IC.
AIYIMA A200 Measurements
Let's start with RCA input:
SINAD which represents a measure of noise and distortion is above average:
Unfortunately digital input degrades that some:
So the rest of the tests are with RCA input. SNR is good for class:
As is distortion as represented by multitone:
Frequency response is flat enough but is load (speaker) dependent:
Crosstalk is good:
Let's see how much clean power it can produce with 4 and 8 ohm loads:
Allowing for 1% THD we don't get more power but burst delivery is higher:
For a desktop amp, this is pretty good amount of juice.
Sweeping at different frequencies shows very predictable response:
Of note, power doesn't drop much at 20 Hz which is very good (and important).
Finally the amp is good more or less when you power it up:
Conclusions
AIYIMA once again shows that it has as solid hold in the mid-power amplifier market with above average performance at bargain prices. Integrated power supply solves one of the hassles of their separates and provides nice turnkey solution. Interface and build is good for the class. So really, if you want a competent amplifier with good power and little money, you have it.
I am going to recommend the AIYIMA A200 amplifier.
------------
As always, questions, comments, recommendations, etc. are welcome.
Any donations are much appreciated using: https://www.audiosciencereview.com/forum/index.php?threads/how-to-support-audio-science-review.8150/
The compact size should fit on desks well. Controls are simplicity in themselves: push in the volume control to select input (RCA or Bluetooth/USB). Rotate for volume.
Nice to see built-in power supply unlike other AIYIMA offerings that required large external ones. Design is based on TI TPA3255 IC.
AIYIMA A200 Measurements
Let's start with RCA input:
SINAD which represents a measure of noise and distortion is above average:
Unfortunately digital input degrades that some:
So the rest of the tests are with RCA input. SNR is good for class:
As is distortion as represented by multitone:
Frequency response is flat enough but is load (speaker) dependent:
Crosstalk is good:
Let's see how much clean power it can produce with 4 and 8 ohm loads:
Allowing for 1% THD we don't get more power but burst delivery is higher:
For a desktop amp, this is pretty good amount of juice.
Sweeping at different frequencies shows very predictable response:
Of note, power doesn't drop much at 20 Hz which is very good (and important).
Finally the amp is good more or less when you power it up:
Conclusions
AIYIMA once again shows that it has as solid hold in the mid-power amplifier market with above average performance at bargain prices. Integrated power supply solves one of the hassles of their separates and provides nice turnkey solution. Interface and build is good for the class. So really, if you want a competent amplifier with good power and little money, you have it.
I am going to recommend the AIYIMA A200 amplifier.
------------
As always, questions, comments, recommendations, etc. are welcome.
Any donations are much appreciated using: https://www.audiosciencereview.com/forum/index.php?threads/how-to-support-audio-science-review.8150/
