I use the HP-P1(less than 200hrs running time) & Apple Ipod Touch 2G with Grado SR325is(probably less than 200hrs running time). Does anybody know/have ideas whether a particular gain setting would yield greater signal quality? I thought low gain lets me use the pot in a more "open" position, using less resistance in the signal path. High gain may allow better function of some internal part of the circuit? Since I can use any of the 3 gain options maybe it's best to leave it on the same all the time regarding "burning in". So to sum up, what is best practice for the gain selection?
I feel the HP-P1 is screaming a bit through the SR325, I use the 2 digital filter position in an effort to ameliorate this. I hoping a thorough "burning in" period yields a discernable result.
I'm suspect about what is happening when the Apple iTouch permits alteration of the digital signal via the EQ function. Does anybody have knowledge about what is happening there? I would like as pure digital export as possible to the HP-P1, I'm hoping no conversion between digital and analogue is occurring prior to digital output to the HP-P1.
It seems people think the Beyerdynamic DT1350 has good synergy with the HP-P1, maybe the SR325 is not such a positive synergy? I would be interested if anybody has found a great synergy between this amplifier and another headphone.
It would be great is Apple could provide iDevice function with all their computer products. Maybe something for the future.
Edited by AJHeadfi - 12/8/12 at 8:49pm