The first thing I noticed about this product is when I plugged my headphones in there was a painfully loud pop in my left headphone

Puts out a loud popping sound on L ch when you plug headset in, even when unit is not plugged in, so I give it a 4

And to top it off I get bad popping when computer starts to play audio.

Any movement caused the power to blink and a subsequent loud noise/pop in the speaker.

And to top it off I get bad popping when computer starts to play audio.

remember to turn your amp/speakers on last and off first or you hear a nasty pop as the unit goes on.