aeriyn Posted July 19, 2004 Report Share Posted July 19, 2004 Kurisu, since you're so into the Auvi units, maybe you can help me. I've been wanting to buy one of the Sharp MD player-only units for a while, but I'm a little confused about the digital amp thing. Everyone says a lot about Sharp's Auvi units and their 4-pole headphone connectors. So what's the deal though? What makes having separate terminals better than having a common negative? Also, what happens if I use a pair of headphones such as, say, my EX71s, that have 3 poles? Will it work? Or will it sound like crap? >.>; btw I like my EX71s and don't diss them like everyone else seems to. I must know before I spend money. Especially since I have NO IDEA where to find earphones with 4-pole connectors. Quote Link to comment Share on other sites More sharing options...
skyther Posted July 19, 2004 Report Share Posted July 19, 2004 No it doesn't affect channel seperation. It's just a split ground, which probably effects the power efficiency of the amp. *edit* http://www.minidisc.org/classd_amp.html Differential (push-pull) operation of phones and speakers, where the + and - leads of each ear phone are driven in anti-phase to get 4x the output power from a given battery voltage. This, of course, precludes a common lead for the two ear pieces, hence 4 leads to the phonesPush pull topology, hmm. It might affect your sound quality, but not by much. The differential system in the Auvi has probably more to do with lower battery consumption. Quote Link to comment Share on other sites More sharing options...
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