Concert Experience for $5k?

If you are looking for a concert experience look for any large Vintage SRS-SDA series speaker in good shape, spend some money upgrading them and you will absolutely have your experience and loss of hearing to go with it. Since I love the concert experience I cannot part with my Polk SRS-SDA 3.1TL's. I do however switch with a B&W 803D2 when I just want to lay back.

Zu Druid Vs would be great as others have mentioned.  Horns are the other idea, but probably out of budget.  

Altec Model 19's

where?tell me:)? I want them too

I just got my hands on a pair of Krell Resolution 2 speakers from Highperformancestereo and I am absolutely mesmerized at how F--kin great these speakers are for all music tastes.  They actually deliver a better experience than my Wilson Sophia's, W/P 6's, Dynaudio C4's or my recent B&W802D2's.  Spectacularly dynamic and soundstage like crazy with no roll off on either end.  I got mine for &3300

almarg, curious about a response of yours. You indicate that in the case of the GET Triton One's the amp wouldn't be a good match because (paraphrasing) the higher amp output impedance and the speaker’s variation of impedance would be an under-emphasis of the mid-bass region, and excessive brightness in the upper mid-range.

Why should the impedance mismatch yield any different sound characteristics in the T1s than if it were paired with an amp whose impedance was an exact (no such thing I know) match? If the impedance of the GE T1s are low with respect to the amps "preferred" impedance, this should manifest itself as additional current being drawn from the amp and not necessarily anything audibly undesirable. Granted, to much current draw is itself undesirable.