Guilt.But did you confuse this forum with GD?
Had two quite nice, considering the price, Logitech systems here, and both had the issue of popping noise when turning on, and hissing Boise when turning the volume up, regardless how slow or fast. Tried spraying those circuit cleaning products, which worked for a while them not.Sorted out my sound issue with a cheap pair of logitech speakers I had in the loft. No more hiss and they have an amplified headphone socket in them!
Last upgrade went to a soundbar. So far, so good, but clearly not for everyone's taste