Would This Amp Be Worth The Cost?

I'm a big fan of Musical Fidelity's products. However you have what I think is a decent amp. There may be a change by swapping amps but the change might be very small and only at the frequency extremes. If I was looking for a change I would be looking at the pre-amp. What pre-amp and source are you using? 

op

musical fidelity are good performing, well built amps that represent good value

i have found their sonic character to be extended, lively, solid state state sound, with little harshness

other (largely more expensive) brands may present the music with somewhat more richness

older classe’s (class a/b amps that put the brand on the map years ago) would sound warmer more dimensional than modern musical fidelity’s... i have not heard the specific classe class d amps you have...

Seems like there are loads of ABX listening tests (Carver Challenge, etc) which tell us there is no audible difference between any amps which deliver sound at your top listening levels within their design limits. Any particular choice of amplifier above a basic good design (about $400 seems to be enough)

Is what they are telling you? Do you really believe that s$&t?

You should listen to what your ears are telling you. If it's not something different you might need to abandon this hobby and try needlepoint.

The Musical Fidelity represents a strong value.  They are made in Taiwan (at least for now, production seems to be migrating to Canor in Slovakia) and as a result are a lot less expensive than many made in US/UK/Germany/Japan products.  Very good sounding.  Oodles of power and although a touch forward, probably less forward than that Classe.  It should be more refined as well.  You would spend a lot more and get less power (though a touch more refinement) out of a Chord Ultima 5.  It should be an excellent fit for those speakers.  
Incidentally I am a dealer for both Chord and Musical Fidelity.  I checked and that amp is in-stock at the distributor in Black.  

"...You should listen to what your ears are telling you. If it’s not something different you might need to abandon this hobby and try needlepoint..."

The guys that believe all amps sound the same, if not driven into distortion, have either never heard a good system, or have never bought a premium amp, or believe all audiophile products are made just to extort money from the unsuspecting. Frankly I feel sorry for them because their systems must really suck.