Currently testing it with my Sundara (finally)... So far so good, no distortion that I could tell, even on bass heavy tracks. Resolution is alright too on busy tracks. Compared it with my DC04 Pro as a sanity check (this dongle has slightly better resolution; and a bit more headroom to crank up further).
Using it as a player, I need to crank it up to 90-95/100 on the 3.5mm output for my preferred listening loudness (i.e. quite loud); 75-85 on the 4.4mm output; both on high gain, no MSEB/EQ.
Using it as a DAC on my laptop (on 4.4mm output for this test), I'm at ~75-80/100 for most tracks on the music player, system and V3 volume maxed out. That's with EQ and -3.5dB preamp gain. If I were to do it with max media and system vol, V3 would be at around 75-80. Without EQ and negative gain, it's ~60-70/100.
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Edit (further test):
Fully charged my V3, plugged it into a USB power meter to see the rough power consumption when going full ham vol 100/100 (again, trying to match my listening volume), high gain out of the 4.4 output, EQ on with -10dB gain, ReplayGain turned off, bass heavy and busy tracks played natively on the unit itself.
During the bassy and busy parts, the difference between an idle (with screen off) player and playback is ~100mA (500 mW). As to how much goes to SoC or driving my Sundara, I have no idea. Assuming the average draw for the X1000E chip is given as 200mW, if that other ~300mW goes to driving the headphone, then I suppose it is definitely adequate for the task. Could do with more gain though (for quieter tracks). Still no distortion or clipping.
Using it as a player, I need to crank it up to 90-95/100 on the 3.5mm output for my preferred listening loudness (i.e. quite loud); 75-85 on the 4.4mm output; both on high gain, no MSEB/EQ.
Using it as a DAC on my laptop (on 4.4mm output for this test), I'm at ~75-80/100 for most tracks on the music player, system and V3 volume maxed out. That's with EQ and -3.5dB preamp gain. If I were to do it with max media and system vol, V3 would be at around 75-80. Without EQ and negative gain, it's ~60-70/100.
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Edit (further test):
Fully charged my V3, plugged it into a USB power meter to see the rough power consumption when going full ham vol 100/100 (again, trying to match my listening volume), high gain out of the 4.4 output, EQ on with -10dB gain, ReplayGain turned off, bass heavy and busy tracks played natively on the unit itself.
During the bassy and busy parts, the difference between an idle (with screen off) player and playback is ~100mA (500 mW). As to how much goes to SoC or driving my Sundara, I have no idea. Assuming the average draw for the X1000E chip is given as 200mW, if that other ~300mW goes to driving the headphone, then I suppose it is definitely adequate for the task. Could do with more gain though (for quieter tracks). Still no distortion or clipping.
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