@kinglek the last time I upgraded my amplification source, a couple of knowledgeable audiophile friends told me that I'd have to spend, at least, 8 to 10K to obtain significantly superior sound quality over today's more reasonably priced integrated amplifiers. I think they were/are right. Here are 3 integrated amps that I've spent serious seat-time with that I would encourage you to audition with your MA Silver, which I have also spent some serious seat-time with (those are sweet speakers): Simaudio Moon Neo 340 IX + Musical Fidelity M6si + McIntosh MA5300.
Good Luck!