I wasn't comparing anything to the A50, and the MC202 is as close to a match to the A20 as you're going to see. Remember, Accuphase is grossly marked up here in the US. The A20 was built in 1995 and listed for approximately 320000 yen, which is around $3900 US. The MC202 was built in 2003, and listed for $3300. Both fall at the bottom of their respective manufacturer's amp line-ups.
Also, I'm not saying one is better than the other. I'm only saying that, to my ears, I thoroughly enjoyed the Accuphase over the McIntosh. YMMV..