Amp question... Forte 4a or B&K ST140

Well, I should add that I am also considering a Bryston 3B.

First an introduction, I don't make much money so everything I buy is used, I am a ranch hand, the job has lots of benefits, just doesn't pay very well. I listen to acoustic music the most, from folk to jazz, though sometimes I "jones" for blues.

I was using an Adcom GFA-2 but it died recently, while it wasn't really all that great an amp it powered my Ohm Walsh 2's very well, picked up an Adcom 535 at a pawnshop, it sucks with my speakers, just way too bright for my ears.

I am wondering if the Forte 4a would have the power to drive the Walsh 2 speakers? They are 4ohm, 88 dB @ 2.8 Volts, so they do require a little power to drive them.

Anyone have an opinion on either of these amps? There's no way to audition them prior to sale, so I will have to live with what I buy.

Thanks