Change to Horns or stay Dynamic

I suspect what people are pointing out is that there are horns and there are horns => short throw and long throw horns and everything in between. If you make the leap then perhaps the jump to long throw horns like Cessara Beta horns might be to much room/sweetspot challenging compared to your existing setup. Perhaps you should start auditioning a shorter throw horn design to see if you can get that resolution and something with a wider sweetspot.

Looking at you system, I suspect that your Wilsons are not optimally set in the room. With the proper set they'll sound much more dynamic and stress free. You seem to have enough power to drive them, but the any flaws in the set will prevent you from enjoying their potential.

See my Review of the Sumiko Master Set. for a hint at what potential can be unlocked.

Dave

by their very nature, deep bass notes can be somewhat 'fat' and slower sounding. i think that sometimes familiarity breeds contempt, even in the finest systems. its not uncommon for audiophiles to struggle to get real bass, and then when they get it, they don't necc like it.

by their very nature, deep bass notes can be somewhat 'fat' and slower sounding.

Jaybo may be on to something. Masking is an important issue in what you hear. More plundering of the bass depths can be the pleasureable result of ported designs/bass extended designs and some boomy room modes that they excite. There is probably nothing more impressive than plundering the depths in the bass.

However more bass and higher group delay can actually mask some of the midrange detail when listening. Take out the thunderous bass and boom from room modes and you may hear things you never heard before.

Could Jaybo/Dave be on to something - speaker setup?

Yeah, those speakers are too far into the room. I suspect that they were pulled out there to remove midrange coloration caused by bass nodes interferring with the mids. They need to go back closer to the wall, but the nodes need to be avoided. Dealers trained to do the Sumiko Master Set know how to avoid those nodes and integrate mids and bass. It's hard for the untrained to do, so I'd suggest finding a Sumiko dealer that'll do it for your system.

Dave