B&W 803 D3 speakers - which amp?


I just upgraded my speakers to B&W 803’s and currently have a Mcintosh MC207 powering them for 2 channel music and 5 channel home theater...sound is quite good from the MC207. The question is...how much difference will it make if I switch to a 2 channel amp like the MC462?
mluters
@mluters

What is your preamp? Are you doing a separate dedicated stereo preamp with HT bypass and an AV pre pro or just using a single AV pre pro for both your stereo music and surround movie playbacks?

For your front 803 D3 speakers I would recommend getting a good quality stereo or monoblock amps and keep your Mac multi-channel amp to drive your center and surround speakers. The Mac MC462, MC452 or the MC301 monoblocks will be a good choice and will be a step up from your Mac multi-channel amp. Classe Delta series class AB amps will pair really well with your B&W 803 D3. Either the Classe CA-2300 stereo amp or the CAM-300 monoblock amps will be a better choice for your speakers than the Mac imo.

The B&W 800 series D3 were voiced using these Classe Delta series class AB amplifications. They have great synergy together and will sound excellent together.
These Classe Delta series products have been discontinued last year and can be had at discounted after market prices in used markets. You just need to find one. These Classe Delta series amps original retail prices were similar to the Mac amps. The Classe CAM-300 monoblocks were priced exactly the same as the Mac MC301 monoblocks. And the Classe CAM 600 monoblocks were priced exactly the same as the Mac MC601 or the MC611 monoblocks. But these Classe Delta series amps were discontinued products and nowaday can be had quite a bit cheaper than the brand new current model Mac amps.

Another amps that will sound good on your B&W 803 D3 would be the Naim 500 series stereo power amp with a separate PSU but this will be out of your price range. Mark Levinson amps will be a another good choice for your speakers too. Even the big flagship stereo power amp from Rotel called the RB-1590 stereo power amp will be another good candidate for your B&W 803 D3. The Rotel RB-1590 retails for only $3k and this amp is a dual monoural configuration it has separate power supply for each channel but it isn’t entirely dual mono configuration.
Rotel & B&W will pair really well together too and will sound good together.
I am using the Classé Delta 2300 stereo  amp bi amped with 2 channels of the Classé Delta 5300 5 channel amp on my 803d3’s.  Very happy with the sound.
I just replaced my MC205 with the MC452 and MC303.  

I have 803 D3 fronts, HTM1 D3 center, and 804 D3 rear surrounds.

i have a Lyngdorf MP-50 - and I should also add that I have 2 SVS SB16 Ultras.

i can absolutely assure you that the MC452 makes a material difference in both 2 channel and home cinema.

B&W speakers should be given maximum amplification.
I have a demo setup for today with my local dealer for both the MC452 and the MC462...I will report back