What speaker do you find yourself listening to most? in Acoustic Research Posted August 1 · Report reply I bet that sounds great! I've tried a 500C and other low powered tube amps with AR3's and 3a's and very much enjoyed the experience. I finally decided that for full time listening I preferred a bigger amp for my 3a's(which is the speaker I listen to the most, although I do enjoy my KLH Model Five's as well) so am using a a McIntosh MC2105. But I didn't want to give up tubes entirely so have a McIntosh C20 preamp driving the 2105, and the combination is just right for me.