Re: Line 6 XD-75
i don't think this experience is entirely out of line. we've done really well with these in situations where range wasn't an issue. i've got a number of Shure analog systems in use in our main auditorium and elsewhere and without a doubt i get more range with those than i do the Line6 units. Of course they are all significantly more expensive as well. And frankly, in many cases, don't sound as good. Go figure.
One other thing to watch out for. The transmitters have a low power or high power mode. Obviously this will affect system range.
And yes, the end of the chain in the signal distribution will suffer. They also say don't chain more than 4 of them. i tried to push this. it didn't work out well for me. One trick i have done is to start the A antenna from receiver 1 and chain it through to receiver 4. Antenna B i start at 4 and chain through sequentially to receiver 1. That way every receiver has access to at least one signal that is no more than one generation from the original. Seems to work okay.
All that being said, we've been able to deploy these in classrooms and our children's theater [seats about 200] without any issues. YMMV, of course.
