Inna, I enjoy listening to music and also take great joy in auditioning gear. Consequently, I collect (hoard) much gear. As has been stated before, synergy is key (everything). For example, I have a pair of fully rebuilt ML 33H, these amps pair up well with my Talon Phoenix speakers (ceramic drivers), however, my Pass XS300 and Krell KAS sound better with my Rockport Cygnus than when using the ML 33H. Additionally, I have several Pass Aleph amps which sound sublime when paired up with my Altec Malibu speakers. I have several JBL (4343, 4350, 4430, the original Everest) which pair up well with tube amps and SS pre-amps. I prefer my Boulder 2050 to my 2060. I had the Vitus SM 101 Mk1, but preferred my other amps and thus sold the Vitus. My Krell KSA 200 pairs up very well with my Duntech Princess speakers. In regards to the D'Agostino S-250, it's a great amp, reminds me of the older Pass amps. Pick your poison...
respectfully,
Jose