jonheal wrote: > Actually, I think my system goes fairly low as it is. I haven't put an > SPL meter on it yet, but I think it's safe to say that it's no more > than 3db down at 60Hz. Maybe 50Hz. (I'll find out for sure with a meter > before I proceed too much further.) > (I'm looking for that extra octave with the sub.)
An octave is only half the Hz. So if you go down to 60Hz, an extra octave is only to 30Hz. But that would let you hear the low E on a bass. IMHO, it is not a subwoofer if it makes any signal above 50 hz. And I could agree with folks arguing that sub woofers stop at 40hz. > I was under the impression that it was not acceptable to sum the > channels with a Y-connector because you mess up the impedance. Is this > not true? It is correct, you do not want to use a Y to sum, It is fine (usually) to use a Y to drive two outputs from one source. To mix, you need an active component. The SPL meter will not tell you if the signal is correct. Lots of systems "double" at low frequencies, and the SPL will look right. Doubling is when the woofer can't reproduce the fundamental, so it does the second harmonic instead. Any audiophile speaker should go into the 50s or even 40s without doubling, even mini-monitors. A rolloff of 3db/octave starting at 50 is fairly typical unless you have big drivers, or lots of watts. -- Pat http://www.pfarrell.com/music/slimserver/slimsoftware.html _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
