magnepan

I called them to ask about the DWM bass panels. Front office left something to be desired, but tech services was great, twice. I bought, twice. The four DWM panels transformed my ESL system and my HT.

As for customer service, sure, anything can be improved. You just have to pay for it. I’ll take "best-in-the-business for cheap" over "second-best-plus-marketing for big bucks" any time. YMMV

PS: I've had some Magnepan in one of my systems continuously since Tympani 1A's in 1973. Fifty years of state-of-the-art which I could afford. I'll take a little inconvenience - but if you can't, there's lots of product nearly as good for 10x the price.