cliveb;359831 Wrote: > My recollection is that line level input sensitivities around the 100mV > mark was quite common back in the 70s. Most devices such as FM tuners > and tape decks output fairly modest voltage levels. It was only when CD > players arrived on the scene in the 80s that outputs of 1V and 2V became > commonplace. > > > 10V was the minimum overload capability you'd expect from a decent > input with 100mV sensitivity. For a 2V input, 10V is only a little over > 12dB of headroom, which is hardly adequate.
hmmm - yes I meant 150 not 250. Many preamps with split-rail supplies use +/-12v so max swing is (theoretically) 24 v pk-pk... I think that these days most line inputs are set to 500mV sensitivity, with a proper CD input being at 2V. Anyway, 187mV is too low for a CD or squeezebox. It will need an attenuator in-line to avoid overloading the input stage IMHO, depending on its gain staging and overload margin (headroom). -- 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 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, Kimber & Chord cables Outdoors: Boombox+Creative Sub (If I remember to turn it on...) ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=55023 _______________________________________________ discuss mailing list discuss@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/discuss
