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AIYIMA A08 Pro Amplifier Review

Rate this amplifier:

  • 1. Poor (headless panther)

    Votes: 8 3.9%
  • 2. Not terrible (postman panther)

    Votes: 32 15.5%
  • 3. Fine (happy panther)

    Votes: 151 72.9%
  • 4. Great (golfing panther)

    Votes: 16 7.7%

  • Total voters
    207

amirm

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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.
AIYIMA A08 Pro Stereo Amplifier Bluetooth Review.jpg

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:
AIYIMA A08 Pro Stereo Amplifier Bluetooth back panel power supply Review.jpg


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:
AIYIMA A08 Pro Stereo Amplifier Warm Up Measurement.png

Running our dashboard we see the usual good performance from AIYIMA amplifier range:
AIYIMA A08 Pro Stereo Amplifier Measurement.png

Performance is above average despite the very low cost:

best budget stereo amplifier review.png


Noise level falls in the same category of very good:
AIYIMA A08 Pro Stereo Amplifier SNR Measurement.png


As noted, there was a bit of a struggle to get flat response:
AIYIMA A08 Pro Stereo Amplifier Frequency Response  Measurement.png


And typical of their designs, there is load dependency.

Crosstalk was above average for all amplifiers tested:
AIYIMA A08 Pro Stereo Amplifier Crosstalk Measurement.png


Multitone performance was very good:
AIYIMA A08 Pro Stereo Amplifier Multitone Measurement.png


This little box outputs good bit of power at 4 ohms:

AIYIMA A08 Pro Stereo Amplifier Power into 4 ohm Measurement.png

AIYIMA A08 Pro Stereo Amplifier Max and Peak Power into 4 ohm Measurement.png


Even with 8 ohm load you have good bit of it:
AIYIMA A08 Pro Stereo Amplifier Power into 8 ohm Measurement.png


Transfer function (frequency vs power) is pretty good for class:

AIYIMA A08 Pro Stereo Amplifier frequency vs Power into 4 ohm Measurement.png


Conclusions
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.

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As always, questions, comments, recommendations, etc. are welcome.

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Koeitje

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That is one ugly amplifier, but hard to fault its performance for this price.
 

vkvedam

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Quite decent for the price! Thanks for the review @amirm
 
OP
amirm

amirm

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Excuse me, does the load dependency at 8 ohms mean the treble may need a little help to quiet down?
It will depend on the impedance of the speaker you connect to it. But yes, you can use the treble to try to compensate if it gets too bright although the correction is not precise.
 

Schlippwhip68

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It will depend on the impedance of the speaker you connect to it. But yes, you can use the treble to try to compensate if it gets too bright although the correction is not precise.
Great, thanks Amir.
 

TonyJZX

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Not bad. Tone controls too.


if the pic shows the levels as 'flat' well then that would get my goat.

But the performance of this is what I would welcome for $100! I think the fact there's some 'shtyle' to the case is even better. I feel like a normal style steel case wouldnt be as well received by many.

Also note there's a dac with tube section and a preamp w/ phono stage you can buy that fits in the top slot.
 

Schlippwhip68

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if the pic shows the levels as 'flat' well then that would get my goat.

But the performance of this is what I would welcome for $100! I think the fact there's some 'shtyle' to the case is even better. I feel like a normal style steel case wouldnt be as well received by many.

Also note there's a dac with tube section and a preamp w/ phono stage you can buy that fits in the top slot.
Yep, that’s the Aiyima T8 and when paired look really ‘shtylish’ not sure how they would perform together though…
 

MarcosCh

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More like 160-170 eur in Europe, but still...

btw, someone posted here recently a link to a blog entry on a visit to Aiyima. The designer had some words about the difficulties of adding VU meters to amps: difficult to source (one last factory in Taiwan or something like that), tedious to calibrate etc.

Thanks for the review!
 

SaltyCDogg

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Thanks Amir!

As with other Aiyima amps you can get a fair bit more power with a beefier power suppler.

Qualcomm QCC5125 Chip support SBC\AAC\APTX\APTX-LL\APTX-HD\LDAC
I wouldn't expect Amir to test the bluetooth performance, but can we predict it from the chip used?
 

respice finem

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Great little amp for this low price. I would, however, gladly trade in the tone controls for a second VU meter and a HPA. With one VU meter it makes one think it's mono.
 

fordiebianco

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Dennis_FL

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Nice device. And with bluetooth !! Like a VU meter, that's something you don't see everyday.
 

thewas

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Like some other models from this brand it measures quite well, only a shame about those bass and treble controls without defeat or neutral position and that they aren't at the exact mid position for those measurements.
 

pavuol

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Nice brick, you have to wait years for "established" brands to adopt at least (non-HD) apt-X, wheres these chinese companies implement it charmingly easy, this time with modern BT v5.0 with both Apt-X HD and LDAC.
Seems like it goes through CS4344 24-bit, 192 kHz DAC chip while using BT as source.

Combo mentioned above, looks avant-garde :)
a08pro+T8.jpg
 

TonyJZX

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A second VU meter where the volume knob is with the later in the middle where the tone controls is (scrapping them) and it would be killer looks.
Thanks Amir!

yes two VU meters and use one of the existing knobs for volume, the 2nd knob for a variable loudness control.

having BT in the base power amp AND in the t8 tube preamp is super kooky though.
 

AndreaT

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Excellent review. The amp is not in the upper echelons of measurements, it is a good choice for non-believers in high SINADs as the price is affordable. Thank you Amir! Your reviews are extremely precise and a joy to read. In contrast with Denon, Aiyima improves the quality with its new products.
 
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