I once owned a pair of Rethm speakers with Lowther drivers. The problem was a thin sound with no bass. Adding a Rel subwoofer didn't help much. There was always a dip between where the driver left off and where the subwoofer picked up.
Check out Bache Audio. I have the Tribeca speakers. These are based on a modified wide band driver that covers the range from 700-10K, augmented by a super tweeter and 2 woofers. The wide band driver is directly connected to the amp (no crossover). It's like a single driver but with better top and bottom end.
Check out Bache Audio. I have the Tribeca speakers. These are based on a modified wide band driver that covers the range from 700-10K, augmented by a super tweeter and 2 woofers. The wide band driver is directly connected to the amp (no crossover). It's like a single driver but with better top and bottom end.