SMSL HV-50 Amplifier, anyone?

Does anyone know anything about the SMSL HV-50 amplifier?



I’m asking, but I think I already know the answer: No, no one knows anything about the SMSL HV-50 audio amplifier, or if they do, they aren’t talking (not in english, anyway). I found a recent reddit thread asking about it, but no one knew much, and I haven’t found much else.

What I do know are some basic details:

  • 50W per channel (stereo)
  • RCA inputs
  • 5-way binding posts for outputs.
  • Based on the TDA7492 Class D Amplifier IC from ST Microelectronics.
  • Aluminum case.

The TDA7492 chip is used in a lot of compact, inexpensive audio amps made by various Chinese manufacturers and sold under various names on Amazon, Ebay, AliExpress, etc.



It is also used in the older, almost identically specced 50 Watt/channel SMSL SA-50 amplifier, pictured above. The chip and specs aren’t the only thing the two have in common. As you can see, the case is the same. The only outward difference is slightly different markings and detailing.

The insides are a different story. Both use the same TDA7492 amplifier chip, but as you can see, the PCB and components are quite different.

Last night I noticed that one seller was offering the HV-50 for just $35 with free shipping, so I ordered one. At that price, it was a no-brainer. I’d have easily spent $25 and several hours getting one of the cheap TPA3116 boards I’ve ordered mounted in a suitable case.

I’ll follow up with a new post in a few weeks, once I have the HV-50 in-hand.