SF Guarneri Homage or SF Extrema?

i've heard both speakers, and i don't have a preference- they're much too close in design and both sound excellent.
but as an aside, i took a chance and bought a sonus faber amp
(the musica) 50w/ch into 8 ohms -- three knobs on the front, no remote, simple. i use it to drive the guarneri's. i turn the volume up to about 10 o'clock, which is loud enough for me. the speakers sound wonderful to my ears. and i see musica's going for $1600 on audiogon... i thought the same thing- it's not powerful enough, or it sounds dry, etc. just the opposite- plenty of power (100w into 4 ohms), sweet, detailed... i like sonus faber alot. they deliver, end of story.

I own a pair of Extremas and I have also listened to the Guarneris. To my ears, the Extremas are more complete, if I may use the term. However, to make them sing, you need a high quality and a high powered amplifier. Your amp will not do the Extremas justice.

I just got Extremas and I have them hooked up to a Burmester 956 MK II amp. They sound amazing..HOWEVER, I think my amp on the Burmester documentation says 200 wpc into 4 ohms, so I believe it may be really a 100WPC 8 ohm stereo amp. Am I leaving a TON of what the Extrema are capable of on the table, and is my amp underpowered for the EXTREMA?

Interesting renewal of this thread. Right now I am discussing with another member on another forum the merits of the GH's vs. the Extrema's.
As some have said before, the Extrema's can drop down lower into the bottom end than the GH's BUT need a lot of power upstream to sing. IMHO, the GH's are a more complete design and a more refined speaker. The GH's are more capable in the all important midrange and at least in my small room; more precise and able in the imaging dept.
Add to that the overall coherence superiority of the GH's to the Extrema's and the decision becomes easy, at least to my ears.