i had the opportunity to bring home the 6550-based amp (with pentode, ultralinear, & triode operation modes) last night to audition with my gears. actually, my primary objective is to find out if the amp can drive my 88db Dahlquist DQ-10 speakers with decency. me masamang balak, eh... heheheh.
first album, starbucks' west coast jazz album, played with the amp in ultralinear mode. ayos naman. volume pot at 1 pm at wala pa ring distortion. first track, i already find my feet tapping involuntary. hmmm...
next album, Carmen McRae's Sarah - Dedicated to you. the amp this time is in triode mode with the volume pot at 10 am (11 in the evening na, eh.). the song Misty is knee-weakening, Send in the Clown saddening, Black Coffee promising something exciting... nakatulog tuloy ako. aaarrggghhh! :'(
5 am. with the amp still at triode mode & the volume pot at 9 am. i played several tracks from the album Brazilian Sketches. yesss... Stacey Kent voice, luscious. the sax lines, sensous. of course, that "suklay" sound in the track So Nice... unfortunately, have to get ready to go to work. baka ma-late ako at mawalan ng source ng panggastos sa bisyong 'to.
conclusion, the amp can drive the Dahlquist DQ-10 decently at moderate volume levels.
nga pala, i used the following in the audition:
1) old Kenwood LD player (can't even remember the model.
)
2) Dahlquist DQ-10 speakers (luma din.
)
3) Audio Pro 12 wga speaker wires
4) DIY interconnects (Audio Pro cable terminated by Quantum RCA plugs)
'yun lang po. balik trabaho na. sama na tingin ng boss ko.