companyja
Active Member
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- Apr 26, 2020
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Heyo, posted this on Reddit but this might be the more appropriate place. I'm temporarily using my Fiio X3 III as a DAC connected to my desktop since I sold my desktop dacamp, and because it has rather bad crosstalk figures and a high noise floor with sensitive IEMs, I tried putting it on line-out which has adjustable volume levels, so effectively a pre-out. I listened to my AKG K712 on the X3 III from time to time on headphone out and it always sounded the same as my desktop K5 Pro, but now that I put it in line-out, man it just sounds delicious. I don't know if I'm psyching myself out but I swear it catches me off-guard how nice the low-end is and it always feels a bit extra. At the loudest I'd ever listen I cap out at 116/120 on the pre-amp. I tried lowering and increasing the volume as well cause I know how much uneven matching makes an impact.
My question is, can the same output port have different impedances depending on whether the signal is going straight DAC to output or if it's going though the additional pair of OPA1622 inside the X3 III? The only figures I've found is the headphone out on RAA, which is 1 ohm so it doesn't affect anything I'm plugging it into. I'm thinking maybe this is affecting the low-end, if it's outputting something like 20ohm or above as line-out?
By the way, really fascinating player, I don't think I've seen a dual burr-brown DAC anywhere else. Currently the most annoying thing is the audio latency in DAC mode which is only tolerable if I run it at 192khz.
My question is, can the same output port have different impedances depending on whether the signal is going straight DAC to output or if it's going though the additional pair of OPA1622 inside the X3 III? The only figures I've found is the headphone out on RAA, which is 1 ohm so it doesn't affect anything I'm plugging it into. I'm thinking maybe this is affecting the low-end, if it's outputting something like 20ohm or above as line-out?
By the way, really fascinating player, I don't think I've seen a dual burr-brown DAC anywhere else. Currently the most annoying thing is the audio latency in DAC mode which is only tolerable if I run it at 192khz.