Nothing to compare it to so not sure about value and quality except that it looks substantial and really got my dead subwoofer up and running. Replaced the old burned out Klipsch unit with a fairly simple modification to the cabinet (enlarged the width). As far as I can remember, the sound is now better than when new. There are certainly cheaper units but my experience with audio is that you generally get what you pay for.
It seems to be well made and a lot of bag for your buck.
It seems to be well made and a lot of bag for your buck. These amps are a good alternative to repairing an older failed plate amp and probably about the same cost as a repair bill.
However, I have found one little problem with it. The left and right RCA inputs are hardwired together. This is just one input connect to two RCA jack. See the pictures, you can see the jumpers. Makes no sense to me. This could look like a short to the RCA outputs of your audio receiver. This is NOT GOOD if the output signals from the left and right channels are 180 deg out of phase. All the other Sub Amps I have seen either have only one RCA input or the left and right RCA inputs are added together by an OPAMP stage. This OPAMP might have added $1 to the total cost of this amp but to me is absolutely necessary. It appears to have a switching power supply. These are cheaper than a traditional power supply and tend to not last as long. I have a Klipsch 600W Sub Amp made by Bash with a failed switching power supply and this amp will replace it.
The fuse is hidden in the 120VAC receptacle. I could not find a UL or any other safety standards approval rating on this Sub Amp.