I missed that old thread so I will add my 2 cents here. I own Heresy Is I guess you would call them, vintage 1976 before numbering. For reasons unknown, I found as do many others, that McIntosh power amps are synergistic with Klipsch speakers.
From the tenor of your post it doesn't sound like you have a budget in line with a new or even recently used Mac amp, so that would leave you with only the older Macs which is just fine, actually. I use one of there oldest and least expensive models the MC 2505. The best option might be a clean MC2105 which puts out over 100WPC, I know you don't need all that much juice for the Heresys, my amp is only a 50WPC piece. The tone of the amp is most important and since you have eliminated tubes, you have taken out a lot of amps with a warmer than standard tonality. Other choices might be- a used again low output class A amp. The other thing to consider is using earm cables, I like Cardas but they are expensive, Use good copper if Cardas is too much, leave out silver in any form.
From the tenor of your post it doesn't sound like you have a budget in line with a new or even recently used Mac amp, so that would leave you with only the older Macs which is just fine, actually. I use one of there oldest and least expensive models the MC 2505. The best option might be a clean MC2105 which puts out over 100WPC, I know you don't need all that much juice for the Heresys, my amp is only a 50WPC piece. The tone of the amp is most important and since you have eliminated tubes, you have taken out a lot of amps with a warmer than standard tonality. Other choices might be- a used again low output class A amp. The other thing to consider is using earm cables, I like Cardas but they are expensive, Use good copper if Cardas is too much, leave out silver in any form.
