Skunk;164487 Wrote: > Does the impedance of my umbilical matter or does the impedance of the > supply dominate if it's greater? Would it possibly matter more if I had > a quality supply with superregs? I wondered if twisting the wires would > have negative effect (different wire lengths etc.) but went ahead with > it. I do plan to make the supply wire much shorter in the near future > FWIW.
The cable length matters. Wire is inductance. Inductance raises impedance at high frequencies. As with speaker cables and interconnects, however, the 2 or 3 feet used to connect to your SB3 won't have any practical effect. If you're worried about it, use a few insulated wires in parallel to divide the inductance by the number of wires. Twisting is good. Skunk;164487 Wrote: > > Wouldn't you need 3, one externally and one each for 5v and 9v analog, > to _really_ see if a linear supply matters? At any rate I wish I had > your ability to build from schematics. Now you're beginning to understand! Yes, if you really want some benefit of a linear supply, the analog circuits should be cut free of the dc-dc converter internal to the SB3 and be fed from a linear regulator instead. Will it really matter? I have no idea. My SB3 sounds pretty good to me as is. I can't imagine any change due to regulators being more that slight. For me it isn't worth the bother. TD -- tyler_durden ------------------------------------------------------------------------ tyler_durden's Profile: http://forums.slimdevices.com/member.php?userid=2701 View this thread: http://forums.slimdevices.com/showthread.php?t=30703 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
