Now if the amp is very efficient, let’s say 90%, the actual maximum RMS power

Not that inconvenient, but I guess it's not surprising from a cheap amp in a not-very-popular class of amplifiers

If anyone things that my amp is defective and not just garbage, please let me

The amps failed after only several hours of use.

Good value amp in normal mode, very weak in LFE mode

After having a Creative Desktop PC Amp that is still running after 12 years, this is unacceptable, I will NEVER by anything from Goldwood

Wish the amp was a little stronger but does a good job for the 12x12 room it is in....

The sub-woofer amp works good for my needs

This amp does turn on and can be heard, but when there is no audio the amp produces a very loud hum from my subwoofer regardless of the subs level setting

The sub-woofer amp works good for my needs

Nice Amp for sub-woofer,

Good value amp in normal mode, very weak in LFE mode

The amp works--It is noisy, though.

I wanted to compliment my AudioEngine A5+ speakers as they have a sub out on the back