New Parasound A21 VS Mark Levinson #23

Thank you all for the wonderful advise.very helpful.  I am new to audiophile and just  learning new things everyday. I will go with A21 as it appears solid in every aspect for now. I may need help with fuse upgrade  etc which I may have to request the dealer to help. Thanks again! 

Which B&W 803 do you have? 803 D2 or the latest 803 D3?

Mines is 803 Nautilus

While I agree with the above about the Parasound A21, if the Levinson has had the caps replaced and completely serviced within the past few years, it is hands down a better sounding amp.

I was a Levinson dealer for many years and have owned a bunch of their equipment. I wasn't ever a Parasound dealer, but have owned a lot of their product also, including the A21.

Once you hear a properly working Levinson amp, it's hard to get it out of your head.  They are indeed quite nice, but I agree, that they have their own sonic signature, (just like everything else).

Without knowing the provenance of the Levinson, the A21 is a safer bet. 

Which B&W 803 do you have? 803 D2 or the latest 803 D3?

ask17 - I'm not sure who you're asking the question to.  Your 803S is the last of the original Nautilaus series before B&W moved to the diamond tweeter.  If I remember right, the "S" series had a better aluminum tweeter where B&W was able to raise the resonance breakup to something like 28khz.  I used to have the B&W D2 series and now have the D3 series.  I'm driving them with fuse-upgraded JC1 and A21 amplifiers.

If you go the A21 route I would wait on the fuses to get acquainted with the stock sound and then later on add the fuses. Just my 2 cents.