Brand new to the group. Interesting … I own the MATRIX LD in question (plus about 5000+ others LDs). and I never quite understood the fascination with that particular disc, although I knew it was a limited pressing. I never bought the Pioneer RF Convertor for my CLD-704, so I can’t really attest to it’s sound quality, though it sounds great without the added equipment. My (3) CLD-704s are mothballed currently, as I haven’t found a competent repair facility, but I’ll give it a whirl tonight on my DVL-909.
PS. Never heard of the “open-mat” HK version, though. I’m kind of a “my cold dead hands” type, so please don’t ask … sorry. I won’t part with any piece of my collection. In hindsight, I wish I had bought a spare.