quantumfish,
I've been using CAT6 with good results for months now....it's cheap, easy to work with and tonally nice. I've not found the bass lacking - but that's a totally subjective thing. I don't find the high's rolled off....but I'm not sure I'd know until I try another wire with the F10's.
So yesterday, I bought a 5' pair (my Maggies stand to the side of my equipment rack) of Alpha-Core MI-2's with rhodium plated speaker pins. It's 10 gauge, the lowest inductance in the business (reported to not roll off treble response), quite low resistance (promoting firm bass) and rediculously high capacitance (much higher than even high capacitance CAT5 & 6's, and similar Kimbers)
If the F10's amplifier is up to snuff and don't oscillate due to the extremely high capacitance (energy storage), these cables
should rectify treble rolloff and bass weakness'...at least on paper.
Assuming it doesn't oscillate (and old Superphon amp did when paired with Kimbers, so I am a little wary of high capacitance cables in general) it should give the F10 a little more oomph to drive the Maggies as it will give it a more ideal pathway or corridor.
We'll see soon...$147 shipped for the cables is a worthy experiment. Again, funny math these days, the cables run 60% of the F10's price

I'm thinking of giving that 12ga magnet wire (solid core, very little, sound-smearing insulation to re-act in conjunction with conductors) a try, too, soon....our own Mad DOg rated Paul Speltz's Anti-Cable (12 ga magnet wire) very highly in a recent Positive Feedback review. I see in an earlier posting in the topic it's being used by kck. Wonder what his experience has been.
kck, you out there
