Hmm, I find this claim of 420 hours (7*10*6) a bit strange. On 1000mAh cells (the largest Thomas Distributing sells of rechargeables), that would mean around 2-2.5mA draw, which is less than the output current of many of our portable audio devices. Radioshack lists Energizer Lithium "e2" AAA cells at 1250mAh, which would push us to around 3mA or so...still not very helpful. Maybe there is some sort of uber-AAA out there that I've yet to find thus far, though. Given artears' comment about driving the Senns, it sounds like there isn't much headroom in terms of current output, either. I can think of a few configurations which might keep the quiescent draw under 2.5mA using certain micropower op-amps that may meet the aggregate description of performance here, but I don't know if it would keep under 3mA draw once driving IEMs (although, again, maybe there is some extraordinarily high capacity AAA out there that has escaped my attention).
post #31 of 310
10/26/06 at 7:43pm