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Posts by Wolfsin

Balanced / bridged have both taken a toll on users pocketbooks I fear.  My own included.  For some interesting history and a clearer understanding of the confusion surrounding pro / consumer, balanced / SE, the component interconnection mess, and more, the RaneNotes on grounding and shielding and sound system interconnect are highly recommemded.  There be dragons here.   Headset cans respond in nearly all cases to a voltage DIFFERENTIAL.  If both inputs are 2volts...
Same quest, great answers here:   http://www.diyaudio.com/forums/headphone-systems/196502-out-head-virtualization-circuit.html
Chinese audio components are a serious threat to upscale audio prices because the high end offers much better value and the low end, especially kits, can be truly remarkably cheap.  The new National Semiconductor overture series ICs, examples being the LME49990 and LME49600 really sound wonderfully musical when fed by a good DAC and these are now being incorporated into Chinese kits.   Driving speakers well requires much more power than headphones.  Stick with a...
A lot depends on other components but the ha (small metal can housing dual opamps) had been the subject of much oohing and aahing prior to release of the lme49990.  Then, based mostly on outstanding specs, most attention shifted to lme49990, which like the lme49710ha contains a single opamp.   The best way to compare them might be to participate in the GB over at diyaudio for one of the lme49990/lme49600 head amps and then order what eBay's Jim's Audio calls their...
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