Help - Opinions - Amp for Sonas Faber Olympica III Speakers

Update on what I ended up with for my Sonas Faber Olympica III speakers.

NAD C 658 Preamp with HDMI module. 
Classe Amp 2 amp.
Velodyne HGS 10 sub. Had this unit.
LG 65 inch TV. Had this.
Logitech 665 Remote.
Arcam DVD/CD.
Raven Audio XLR's.
Audio Quest Cinnamon 48 HDMI cables.
Audio Quest Greyhound Sub cable.
Mogami speaker wire. 
Speakers are Bi-Amped. Classe amp made for this.

Pleased with this set up.
The GUI on the NAD C 658 is not easy to use IMO. Hard to navigate and understand what changes are being made on some settings.
The 665 remote works great and is easy to program using a computer.
The Raven Audio cables are a quality product IMO.
Mogami speaker wire I have used in the past.

Someday may change out the amp. OR? You know the drill.

Opinions please.
Looking at this amp  Musical Fidelity M8s-500S Power Amplifier; New w/ Full Warranty. 
Info https://www.musicalfidelity.com/products/m8series/m8-500s

Replace my Classe Sigma Amp2.
Info 

AMP2

FREQUENCY RESPONSE:

10 Hz – 20 kHz, -1dB into 4 Ohms

OUTPUT POWER:

200W rms into 8 Ohms, 400W rms into 4 Ohms

HARMONIC DISTORTION:

<0.018% @ 1 kHz Balanced Input

INTERMODULATION DISTORTION:

>80 dB below Fundamental into 8 Ohms Balanced

SIGNAL TO NOISE RATIO:

-100 dB at Peak Output into 8 Ohms (AES17)

Would there be improvement? Worth it for the cost?
Thanks

UPDATE
Went with a Parasound Halo JC5. Will report back after later. 

Yikes.
I would have gone Simaudio the III matched perfect with my 340ix.

Parasound makes good amps.
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