Al,
Do you think the reason companies like ARC and some others (like Bel Canto with the Ref10000 mkiis specifically) design SS amps with 100K input impedance or higher is to help assure that they work well also with the largest # of tube pre-amps possible?
Other tube pre-amps may have significantly higher output impedances at certain frequencies than either the ref 3 or sp 16 specifically and the high input impedance could help there, correct?
Plus also, who's to say how accurate published specs are or that specific units operate to spec? The higher input impedance might be regarded as something of an insurance policy perhaps even in cases where on paper everything looks good, don't you think?
Do you think the reason companies like ARC and some others (like Bel Canto with the Ref10000 mkiis specifically) design SS amps with 100K input impedance or higher is to help assure that they work well also with the largest # of tube pre-amps possible?
Other tube pre-amps may have significantly higher output impedances at certain frequencies than either the ref 3 or sp 16 specifically and the high input impedance could help there, correct?
Plus also, who's to say how accurate published specs are or that specific units operate to spec? The higher input impedance might be regarded as something of an insurance policy perhaps even in cases where on paper everything looks good, don't you think?

