Some time back I posted in here regarding lack of a sweet spot when using a
pair of IPL transmission line speakers. I never did resolve the problem and
just lived with it...until now. I've just bought a pair of Behringer B2301
near field reference monitors and the difference is astounding. I'm hearing
high resolution and detailed images both spatially and acoustically with
these speakers. Which makes me wonder...IPL speakers are quite high spec and
I would not have expected so much difference, especially with my ancient
ears. I haven't done any proper A/B tests. The speakers are not even in the
same room, for example. But there must surely be a problem with the IPL
units.

IPL speakers come in kit form...is it possible that I have gotten incorrect
phasing to one or more drivers? The bass drivers are correct...is there an
easy way to check the others without disassembling them (a chore)? Any other
ideas/suggestions?