Hi Komaki, it looks like your speakers have a relatively low impedance and are not the most sensitive in te world. They probably benefit from a lot of current and a high damping factor. . . class D amplification often works very well under such circumstances. JRDG Continuum 250 is such a class D device, provided you augment it with an external JRDG PC1 current rectifier / Power Factor Corrector (PFC). May not be crucial for jazz, but for classical where there is a lot of sostenuto, the PC1 will maximize the refinement and authority of the unit. Seems the JRDG C250 lists about $4500 used, and a used PC1 usually goes for about $750 and can be added at a later time. The Continuum 500 has a PFC device built in, but it seems to be offered used above your budget, unless you can persuade an Agoner or a dealer to give you a sweet deal. G.
C250 has max output current of 35 Amps, damping factor of 1000. Here is the info page:
http://jeffrowland.com/Continuum.htm
C250 has max output current of 35 Amps, damping factor of 1000. Here is the info page:
http://jeffrowland.com/Continuum.htm