You never mentioned if you were using the GFP-750 in active or passive mode ??? Since there are sonic differences between the two modes, clarifying this may also help you out in the long run. Sean
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PS... Not ALL tube pieces are "warm, smooth & silky". Some have bloated bass, some are forward in the midrange and some demonstrate "glassy" hi-end. Like anything else, it will boil down to system synergy and personal taste. The one BIG advantage to tube gear is that "tube swapping" can change the sonic characteristics pretty drastically in a matter of minutes.
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PS... Not ALL tube pieces are "warm, smooth & silky". Some have bloated bass, some are forward in the midrange and some demonstrate "glassy" hi-end. Like anything else, it will boil down to system synergy and personal taste. The one BIG advantage to tube gear is that "tube swapping" can change the sonic characteristics pretty drastically in a matter of minutes.