"Have you tried anything with a sub yet? I'd be interested to hear how taking some pressure off your speakers and filling in the bottom end affects your opinion of the PSBs."
No, I've never added a subwoofer to any of the speaker systems I've listened to at home. I never even considered it, actually. Subwoofers just seem kinda weird to me, more suited for crash-and-boom home theater setups or in the back of some dude…