Just got a slightly used pair of Volts -- listening from my R6 Pro while trying to work
Initial impression is that the 'new toy' effect is in full force, but pairing w/ Hiby seems like a winner. Looking forward to comparing w/ iBasso IT-07s from Hugo2go tonight -- best for comparisons since it has dual out -- both can be plugged in at the same time.
Impressions vs IT-07, both driven by Hugo2go:
- Tonality is pretty close. As mentioned above, Volt fills the mids a bit more, makes ‘07 seem a bit thinner. Especially notable on male vocals
- ‘07 seems somewhat V-shaped, with (comparatively) recessed mids and more prominent lows & highs
- Probably as a consequence of the tonality diff, ‘07 stage seems a bit more open/airy, and also slightly more detailed
- Similarly, ‘07 sub-bass seems a bit lifted vs Volt bass which feels a bit more even from sub- all the way to lower-mids.
- Vocals are a bit more prominent and forward on Volt
To be clear, on some tracks, the differences are pretty minimal. But there are tracks where the diffs stand out a bit more. For example, on ‘Barangril’ from Joni Mitchell’s For the Roses there’s a bowed cello which notably fuller from Volt. In addition, her voice has a bit more contralto warmth from Volt — while not ‘shrill’ from ‘07, her voice is thinner. Meanwhile, the precision of ‘Aja’ comes through more from ‘07. Another track which highlights differences is ‘Marrakech Night Market’ -- stage is way more open/airy from '07. Also, there's a lot of high frequency information which comes through more prominently from '07.
Overall, I hear ‘07 as slightly more technical than Volt while Volt is slightly smoother and (dare I say it) more musical. I can see where folks call Volt ‘smooth’.
But again, the differences are small — on a few tracks I literally had to look to see which ones I had in my ears.
Note that both have 16 Ohm impedance, but Volt is more sensitive — 115 dB/mW vs 108, although I question whether that difference is accurate -- seems like less diff to me.
tl;dr: very close, more fullness & warmth in mids from Volt, more stage ‘air’ from ‘07 are the biggest differentiators. Honestly I could be happy with either one.