A late post but yes, yes yes it does.
Do not buy.
I have a rather large house that is too hard for one WiFi network to tackle and I had Trendnet Powerline adapters.
The upside! They work.
The downside, they work by introducing noise into the system, noise that even my APC power conditioner could not remove.
The worst apparent sign was in my office where the speakers next to the computer would make static noise when there was no load going into the amplifier. I could tell that it had something to do with the speaker wires passing by the plug with the adapter. Move it you say. Well yes, but space is tight there and that was where the Internet router was.
Upstairs, where I have a much fancier system I was having tons of trouble that I was denying had to do with the adapters. I would get turntable ground hum with my Ayre Preamp at about 32 (0-66 is the range). I would have mystery pops every now and then on one channel. I suspect these blew out a set of tubes a while back. I would get static out of the speaker closer to the adapter. Again moving the adapter was not an option, in part because of the nature of the electric circuitry involved.
Eventually I realized this is my problem.So I broke down and strung Cat 6 everywhere.
Yes, it took care of my problems. I might have saved myself thousands if I hadn't had to move to from a Heed Quasar to an Ayre p-5xe for the better shielding. I might not have blown out a set of tubes in my RM-9 amplifier.
Above all, empty spaces in the sound are noticeably darker. I've been able to turn my RM-9 from low gain to medium gain without problems. Turntable hum doesn't kick in until the 60 on the Ayre. These are not small problems. These would be audible to the biggest skeptic from Hydrogen Audio. They are reproducible and it's plain as day.
So please avoid the Powerline adapters. They are not good for audio no matter what your level of system, $500 or $20,000. Mine are going on eBay today.
Fishing Cat 6 took days but it has decreased the latency on my Internet speed considerably while allowing me to enjoy new services like an ObiHai VoIP box that lets me call out over my Google Voice line and so on. Beware though, building your own structured wiring cabinet heads you into another world of madness, not entirely different from AudiogonÂ…
