Wow are you in for a change. I've had the bozaks. Great mid and bass but nothing over 15khz or so.
Try some Coincident speakers from Canada. They may be as efficient if not more efficient than the bozaks. You should see what they can do with either a single 8" woofer or a pair of 6"s. It doesn't always take a 15" woofer to produce tight clean bass.
The only problem you may find is that your system may have some hiss that was never audible before. Listen before you buy.
Heresys are ugly boxes themselves. I've owned both heresys & cornwalls and neither can touch the coincidents if size and wife approval factor are involved.
Try some Coincident speakers from Canada. They may be as efficient if not more efficient than the bozaks. You should see what they can do with either a single 8" woofer or a pair of 6"s. It doesn't always take a 15" woofer to produce tight clean bass.
The only problem you may find is that your system may have some hiss that was never audible before. Listen before you buy.
Heresys are ugly boxes themselves. I've owned both heresys & cornwalls and neither can touch the coincidents if size and wife approval factor are involved.