HL-K6 designed for a market ...
The K6 (K for Korea) was designed according to a (former) distributor's requests in the mid 1990s. As you have notes, it was indeed a hybrid speaker: woofer from the then C7ES2 and tweeter from the then P3ES2. The cabinet was as narrow as we could make it, just big enough to fit-in the 8" RADIAL™ chassis, rear mounted. Unusually, the baffle was permanently attached and we assembled from the rear - the opposite situation to all other Harbeths where we assemble from the front and do not disturb the rear panel during assembly (although it is removable).
The other notable feature was the use of a thick felt lining the entire inner surface. Looking back, it's impossible to recall the exact sequence of events that led to us changing distributor there many years ago, but I can say that we are now happy with distribution in Korea and have an easy, professional communication channel open both ways.
Alan A. Shaw
Harbeth Audio UK