SS Amp for natural vocals

I heard the DALI Helicon 400Mk.2 a few days ago with the Jeff Rowland Design Group 501 monoblocks, driven by the Rowland Capri. This is a truly smooth and revealing combination. I listened to Karrin Allyson, Rebecca Pidgeon, Livingston Taylor, Kenny Rankin, Chicago Symphony, Dallas Wind Symphony and the DALIs really shone well.

Prior to plugging in the 501s were tried a Primare integrated, which did a very poor job of controlling the DALI's woofers, yielding a bloated, bloomy bass. Next, we put in a Rowland stereo 102 and things improved a bunch, but the 501 really took hold of the Helicons and made them sound smooth, deep, detailed and lush, all at once. Those speakers evidently love a bunch of power and high damping.

Dave

Tomcy6, the ARC is a solid state amp. check out the ARC web for more info.

Regarding Pass and Belles, I haven't owned the specific Pass amps you mentioned, but I did own the Pass Aleph 3 for years - while a great amp, I prefered the Belles Reference 150A by a pretty big margin and with several different sets of speakers.

I'm new to this hobby, ok habit... but have read many of your opinions stating that the pre amp and speakers play a large role.
I am using a cj met1 6 channel tube preamp with dali 800s and 400s along with an avr ss amp ( denon 5803) and vocals sound outstanding. Granted I may not have the trained ears of yall but the preamp has unveiled the ss amp to where vocals sound great. I am looking into replacing my denon with dedicated power amp because of what i read here, but wonder if the gain will be marginal because the sound is pretty great already. Perhaps he should consider moving up to the 800s or cabling choices?