opaqueice;292390 Wrote: > Maybe this diagram will help: > > [image: > http://upload.wikimedia.org/wikipedia/commons/8/88/Source_and_load_circuit_Z.png] > > Z_S is the output impedance of the amplifier. Setting Z_S to zero > doesn't cause any problem - on the contrary, it's desirable (so long as > there is some other protection against accidentally shorting the amp). > It maximizes the efficiency and minimizes the distortion caused by > differences in the impedance curve between Z_S and Z_L.
Ah - yes oops - another schoolboy error... should have realised that as I was typing (it had been a long day) - of course you are correct, the internal resistance/impedance is in series with the load (doh!). Anyway, the point is... source = 0.1xload is a good heuristic in all active circuits. Thanks, Mr. O. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber & Chord cables ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=46347 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
