Tom (et al), Usually in this "modern" digital age, any DC offset on the final mix would be digitally removed at mastering. I've seen analogue masters (tape) with DC on them...but that was in the days of vinyl so the DC never got anywhere near the cutting head - at which point it would have been zapped anyway.
IMHO it's not DC embedded in the music that's a (potential) problem...It's any spurious DC artifacts that creep (leak) into the reproduction chain. Now obviously this shouldn't happen... Most amps eliminate DC at some point - some don't. Generally, there will be no "pure" DC offset (ie one that is not a momentary by-product of the music as per Tyler's example) Not all "enclosures" have backs... What the designer chooses to do with the sound radiating from the rear of the "cone" is a matter of choice. They can try and lose it (infinite baffle), use it to reinforce the sound by reversing its "polarity" and adding it to the front sound(reflex, transmission line etc) forget about it (horn, baffle-mount / no cabinet) or get really funky with it (isobaric loading, ABR's etc. Each of these approaches has its supporters...but it is possible to make good and bad speakers using any of the approaches. Phil -- Phil Leigh ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=23759 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
