I've now listened to the HK system. It's good but not quite good enought. The tweeters need changing IMO. Metal dome tweeters don't work for me. I'll go silk.
Present: Superman 330d sDrive M Sport + Toys (Auto Car: 0-60 in 5.5s, 0-100 in 14.2s, 30-70 in 5.1s)
Ordered: Red Tornado Golf 7R 5 Dr, DSG + Toys (Top Gear: 0-60 in 4.5s, 0-100 in 11.5s, 30-70 in 4.0s)