Andy8421;518055 Wrote: > Kevin, > > I have my power amps located remotely from my processor / DAC, > primarily for reasons of heat dissipation and keeping the speaker cables > short. This results in signal leads of 4M or so from processor to amps. > My system (Krell) is fully balanced throughout which minimises any noise > issues on the signal level leads, and I was attracted to the Transporter > because of its balanced design - so I could have a system that was > balanced from start to finish. I am dissapointed that the Touch does not > have balanced outputs, and I am investigating how much of a problem it > would be to balance these outputs for longer signal runs. > > I believe the transporter uses a DAC that has both inverting and non > inverting outputs, so it was relatively straightforward job to make the > outputs balanced. I have seen passive transformer based balancing / > unbalancing approaches, but I wonder if you could expand on your comment > "It is fairly trivial to design a balanced output from a single-ended > output. It is a matter of impedance matching and it is not necessary to > have a inverting/non-inverting signal to gain the advantages of balanced > circuit design" as I am not aware of such an approach. > > Andy. I'm not personally convinced that 4m of good quality screened cable is really long enough to warrant balanced connections (30m - yes), however a chip like the SSM2142 does everything you need - just google "balanced line driver"
-- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... SB Touch Beta (wired) - TACT 2.2X (Linear PSU) + Good Vibrations S/W - MF Triplethreat(Audiocom full mods) - Linn 5103 - Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Blue Jeans Digital,Kimber Speaker & Chord Interconnect cables Kitchen Boom, Outdoors: SB Radio ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=74715 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
