aiyima tpa3255

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    Best 4 channel TPA3251/3255 setup

    I'm looking put together a 4 channel TPA325x based amplifier for my car. Preferably a TPA3255 based solution. My only requirement is to have 4 channels. Basically I as I understand there are 3 methods to approach this..... 1) Get a dedicated 4 channel board with 2 TPA3255 chips inside. Like...
  2. pma

    Comparison of power amplifier distortions and FR into complex speaker dummy load

    Comparison of AIYIMA A07 with DIY class AB amplifier into complex speaker dummy load (and more amps added soon) This is a measurement comparison of AIYIMA A07 amplifier (powered by SMPS Mean Well RS-100-24 27V)...
  3. pma

    Class D AIYIMA A07 amplifier (ABX) listening test

    I was curious if inserting AIYIMA A07 TPA3255 class D amplifier in the D/A – A/D loop would be audible. I tested the amp in another thread and found that the frequency response depends, at higher frequencies, on speaker complex impedance, due to amplifier's output LC filter - that is outside...
  4. pma

    AIYIMA A07 TPA3255 Amplifier Measurements and Review - LM4562 (and OPA2134) option

    AIYIMA A07 TPA3255 Amplifier Measurements LM4562 option I received my A07 yesterday, on January 6, 2021, shipped from Italy. Purchased at Amazon.de and as stated on their website, it arrived without a power supply. I am testing the A07 with 2 different power supplies. One of them is a linear...
  5. D

    Aiyima TPA3255 Amplifier Question

    Newbie here looking for info. I have a 24v 5A power supply adapter lying around. Could I use this with the Aiyima A07 or the other AIYIMA TPA3255 amp with Bluetooth and the PCM5102 DAC? There is also a third Aiyima iteration with Bluetooth 5.0 and APTX (but without the PCM5102 chip) which I...
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