One speaker putting out -3db less?

My speaker cables are the same length. And as far as room boundaries, these speakers, and everything else, have been in the same spot for almost 2 years. I used a Blue Sky calibration disc.

40-80hz I'm almost dead even.
500-2.5hz there's a huge difference.

I hope I haven't huffed a tweeter. My local Paradigm dealer quit carrying them a couple of months ago. Any ideas where to get parts? This is a very unwelcome developement.
Thanks again for everyones help.

Yeah that is rough. I have been though this a few times. It has always come down to upstream equipment for me (preamps mostly). But is sounds like your speaker may be the problem.

I would switch location (right for left) of them and retest just to make sure you are not getting room gain. But the frequency seems to high to be room gain unless the louder speaker is very close to a wall etc.

I've moved them all around, changed channels, changed sources, chnged cables and everytime it's the highs in one speaker. Found a local dealer to get me a replacement, just have to take him an invoice since the dealer I bought them from doesn't sell them anymore. The difference at 50-2.5hz was about 9db. Thanks for all the input.