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AIYIMA A70 Stereo Amplifier Review
- Thread starter amirm
- Start date
I got one from AE too, not that cheap, but it has failed with an error code after 15 months. Aiyima are not helpful. There's no service information to explain the error code. If I at least knew what that meant I'd know whether a repair might be feasible. Almost certainly not. At all events, and I know this is just my experience (I don't know the failure rate of these units), I would not (yet) buy more Chinese Amps, DACs or anything. I'm reverting to my large, sleek, old, slightly power hungry Yamaha, because that hasn't failed in 10 years and I'm fairly confident it won't hereafter.
You didn't happen to hook up its speaker outputs to the high level input of a subwoofer, did you? That's a common cause of failure for TPA3255 Class D amps in general (not specific to Aiyima), if the subwoofer shorts the high level negatives/neutrals to ground.
No I didn't, but thanks very much for answering, I appreciate it, and that's interesting!
I have no subwoofer at all and I never connected one: my understanding is that the sub-woofer output is at a low level through the yellow, phono connection, and goes to an active sub-woofer that does its own amplifying. Anyway - no connection to that.
I never ran the unit at high power at all. Its power up/down was under the 12v trigger line from a Topping D50iii, so I don't see how that could have done any harm.
All very puzzling and disappointing - I felt Aiyima could at least have said what what seemed like an error code meant (leds in order, then 20 flashes of all 3, then power down).
I have no subwoofer at all and I never connected one: my understanding is that the sub-woofer output is at a low level through the yellow, phono connection, and goes to an active sub-woofer that does its own amplifying. Anyway - no connection to that.
I never ran the unit at high power at all. Its power up/down was under the 12v trigger line from a Topping D50iii, so I don't see how that could have done any harm.
All very puzzling and disappointing - I felt Aiyima could at least have said what what seemed like an error code meant (leds in order, then 20 flashes of all 3, then power down).
Yep, I figured since this has a dedicated low-level subwoofer out, it would be very unlikely for someone to hook up the speaker outs to speaker-level sub inputs. Just thought I'd check! Sorry to hear about your experience with this device.
The popping sound when switching off disappears as soon as the volume control of the AIYIMA A70 is set to full level.Great little amp for sure, unfortunately unlike the review states my pops at turn off, and pops loudly.
I just tried that just now, sadly, it still pops. Maybe I have a bad unit?
Mine also pops slightly on power off, but not on power on
That’s fantastic!
GiBo61
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- Oct 4, 2021
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Where did you buy it from?
I got it from AliExpress, so even if it'd been younger than 12 months I'd have been on very shaky ground! Really I just hoped Aiyima might say what the LED flashes, seemingly a graceful failure, meant, on the outside chance it might be worth attempting a repair. (I have no idea how a Class D amp might diagnose its own problems and report things - what things? Capacitor, TI chips - i really don't know).
I really didn't expect them to send me this new amp - I'm delighted, and rather embarrassed.
I really didn't expect them to send me this new amp - I'm delighted, and rather embarrassed.
HI EVERYONE
This amp is outstanding! I matched this little brick with Audiovector M3 Signature and I can tell it's best so far in my rabbit hole.
Last year I was sick of my Arcam SA30, so I changed it to Vincent SV-121 from my bedroom. It was better overall... Then I bought Loxjie D40 PRO and Fosi ZA3 while waiting for Advance Acoustic MAA-405 (long story)
Fosi was great for the price, but I still could hear this dry distortion on trebbles (Arcam was worse anyway)
Then Advance Acoustic came and I had power that could match my Audiovectors... But... I don't have huge living room and in my not so big living room I have TV cabinet made of mango wood which made a perfect resonant box for my big amp's trafo... A lot of noise all around.
Aiyima a70 I bought out of curiosity because it was cheap. It is a little lean, but very clean sound and power consumption 10x smaller. Magic happend when I bought another one to try bi amping.
Right from the start I had this Accuphase feeling. I mean you can hear the strings of bass guitar feeling
I read someone here wanted to change power supply... I suggest buy another one A70. At Black friday it should be again cheaper than 10A power brick.
Sorry for my English
This amp is outstanding! I matched this little brick with Audiovector M3 Signature and I can tell it's best so far in my rabbit hole.
Last year I was sick of my Arcam SA30, so I changed it to Vincent SV-121 from my bedroom. It was better overall... Then I bought Loxjie D40 PRO and Fosi ZA3 while waiting for Advance Acoustic MAA-405 (long story)
Fosi was great for the price, but I still could hear this dry distortion on trebbles (Arcam was worse anyway)
Then Advance Acoustic came and I had power that could match my Audiovectors... But... I don't have huge living room and in my not so big living room I have TV cabinet made of mango wood which made a perfect resonant box for my big amp's trafo... A lot of noise all around.
Aiyima a70 I bought out of curiosity because it was cheap. It is a little lean, but very clean sound and power consumption 10x smaller. Magic happend when I bought another one to try bi amping.
Right from the start I had this Accuphase feeling. I mean you can hear the strings of bass guitar feeling
I read someone here wanted to change power supply... I suggest buy another one A70. At Black friday it should be again cheaper than 10A power brick.
Sorry for my English
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