Other reviews say: - no bass, there is bass, just activate the bass boost in the software (they are not always needed at the maximum out of the box, I have a physical button on the edifiers to turn off / boost the bass and they were initially turned off), not like a subwoofer will have but enough, better than without them; - idle hiss out of the box until I heard it. The sound quality, workmanship, everything suits. I hope the hiss will not appear and the software will be finished. It is strange that the box is not in the film, at first I thought that they had already been opened. Another nuance, in one of the reviews they wrote that the receiver was out of order and you can’t buy it anywhere as a spare part, this is upsetting, in this case you will have to buy other ears.