HDMI over CAT5/6 Cabling Baluns?

[larryj763]

I have sort of an odd issue. I had a system all set up with a Marantz receiver (1.2 HDMI compatible), a Sony model 50 projector (Pearl), and a variety of inputs (not all but some HDMI). This all worked reliably for a period of over a year. I have a single run of HDMI cable from receiver to projector; this is a 50' cable purchased from HDTV Supply, which at the time was reported to be HDMI 1.3 compatible.

Because of improved technologies on the HDMI front in particular, I wanted a new receiver and purchased a Pioneer 94TXH. This gave me, among other things, 7.1 output without analog inputs.

This also worked fine for about a month. Then I started having problems with the projector and the receiver syncing up. Once they did, no further problems existed, but many times, turning power onto components would fail to produce an image on the projector. My "typical" solution was to pull/reinsert the HDMI cable at the projector (step stool came in really handy) until they managed to sync.

My dealer (Magnolia) set up one of their service/installer guys to come out and troubleshoot. I was suspicious of the Pioneer, which was the only new piece in the chain. However, the technician brought another HDMI cable with him, and with this other cable, all has been working well since that time, though obviously the cable is temporarily installed.

So, the claim is the cable is bad. I don't see how, but I can't really argue the point as yet either. Now, here's the thing. The cable I have is running through the walls, and there's no way to really replace it without ripping out the walls, unfortunately. The good news is, we also ran CAT5/6 wiring (can't remember which at this moment), so we could switch to carrying the signal with those, using baluns.

So, my primary question here, if you've stuck with me: Assuming someone else here is using this type of cabling, what baluns would be recommended. I'm leaning towards an Extron 201 A D, I believe, because it hides the baluns behind a wall plate. But I'll listen to other suggestions if there is good evidence of reliability or other characteristics.

Also, if anyone has experience with this Gefen "HDMI Super Booster PLUS" (http://www.gefen.com/kvm/dproduct.jsp?prod_id=5000), I'd appreciate feedback on that as well.

Thanks!