Best Class A Int. Amp?

I am looking for the best bang for the buck, I know Levinson,Krell,Wadia, and those kind of folks make great amps but most are out of my budget. I know there have got to be some sleepers out there that will compete with these guys at bargain prices on the used market, I just don't know who they are and can't audition because I am buying used. My budget for the amp is $2000. I am using Vandy 2ce's right now but will be upgrading to a class A speaker over the next 6 months and want to get a quality class A amp for them. I am now using the Acurus A250 amp with the Chiro C800 preamp and Vandy 2W subs.I could really use your advice as to the best buy for the money on this amp. Thank you for your help and reply.