This is a review and detailed measurements of AIYIMA A08 Pro stereo amplifier with Bluetooth support. It was sent to me by the company and costs US $139.99.
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It is so nice to see a VU meter on an amplifier! This one actually seems high quality with nice ballistic response (fast jump, a bit slower retard). Bass and Treble controls are there but I wish there was a tone defeat as well. The position of the indicators is where I had to set them for more or less flat response. I do like the very fine detents on it, allowing you to more precisely adjust them at least.
The included power supply is one of the largest I have seen but is rather light for its size:
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There are no remotes so the amp is for desktop use. Class D implementation means the amp ran with no temperature rise even after all my tests. Protection circuit was excellent with automatic restarted after overload. The meter is useful in this regard as the amp shuts down when the meter is almost at the end of its range.
AIYIMA A08 Pro Measurements
I warmed up the unit for about 10 minutes with very stable response:
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Running our dashboard we see the usual good performance from AIYIMA amplifier range:
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Performance is above average despite the very low cost:
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Noise level falls in the same category of very good:
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As noted, there was a bit of a struggle to get flat response:
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And typical of their designs, there is load dependency.
Crosstalk was above average for all amplifiers tested:
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Multitone performance was very good:
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This little box outputs good bit of power at 4 ohms:
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Even with 8 ohm load you have good bit of it:
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Transfer function (frequency vs power) is pretty good for class:
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AIYIMA has a good class D platform which they turn into various configurations with good success. The A08 Pro is no exception. You get unique looks and to some extent, functionality at still a very reasonable price. With 100 watts per channel, both driven, you have very nice capability to drive any desktop speaker to its limit. My own wish is the remedy of the load dependency but otherwise, this is a job well done.
I am going to recommend the AIYIMA A08 Pro stereo amplifier.
As always, questions, comments, recommendations, etc. are welcome.
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