• AIYIMA A07 TPA3255 Review (Amplifier)------audiosciencereview

    AIYIMA A07 TPA3255 Review (Amplifier)------audiosciencereview
    This is a review and detailed measurements of the AIYIMA A07 desktop amplifier based on TPA3255 class D amplifier chip. It was kindly purchased new by a member and drop shipped to me. The cost is US $72 on Amazon including prime shipping. And as of this shipping, it also included a 32 volt, 5 amp switching power supply. Member also purchased and sent...
  • The OP Chip Can Use on AIYIMA A04 & A07

    The OP Chip Can Use on AIYIMA A04 & A07
    Currently, the op chip used on AIYIMA A04 & A07 is NE5532. Although NE5532 performs well, many audiophiles still want to improve the sound quality by replacing the OP chip. Here we recommend some replaceable OP chips. NE5532: The resolution is average, the high frequency is relatively dry, and the low frequency is relatively muddy and fat. OP275: Better resolution, low frequency and sound field...
  • 2.0, 2.1, 5.0 Channel Amplifier

    2.0, 2.1, 5.0 Channel Amplifier
    2.0 Channel Amplifier 2.0 channel refers to a two-channel output, there are two channels L/R. 2.1 Channel Amplifier 2.1 channel is to add a bass output channel on the basis of 2.0 channel amplifier. 5.1 Channel Amplifier 5.1 channel refers to the center channel, front left and right channels, rear left and right surround channels, and subwoofer channels. A system can connect 6 speakers...
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