Put 100 hours of burn in on the VSD1. Tonight I decided to spend some time tip rolling and comparing it to the CKN70s.
Truth be told, I really just wanted to play with/test the Fiio HS2.
Tips rolled:
Stock silicone & foam, Comply p-series, Sony hybrid, Auvio, cheap tri-level tips from amazon.
Best tip for SQ: Tri-level tips off amazon (more on this later). - also least comfortable.
Most comfortable: Sony Hybrids
I spent about 4 hours doing tests/listening. I'll keep my findings simple. Won't be commenting on every aspect. Here is what I found:
VSD1:
Pros:
High: Good sparkle/shimmer. Good presence. Not particularly sibilant.
Mids: Laid back (if you like that).
Bass: Punches with authority, more so than the CKN70. Great for those bassy tracks when you want to feel the bass.
Cons:
High: Has a peak at 4k. Less pronounced than the CKN70. Slightly metallic.
Mid: Sounds recessed in comparison to the forward CKN70s mids, tips and EQ of mid-bass(see BASS) help to normalize. Won't give you that 'haunted' feeling from great vocal tracks.
Bass: Mid/Upper-bass at ~110Hz bleeds into the mids. EQ a reduction of 2-3dB @ 110Hz really opens up the mids.
Suffers from harmonic distortion ~70Hz. Goes just slightly lower than the CKN70, but not noticeable in music, only during sub frequency tests.
Can sound bloated depending on the track.
Tip changes: I'm only going to mention the ones that provided noticeable changes.
Tri-level tips from Amazon: These are my least favorite tips in all my collection, but I tried them for the hell of it and OMGWTF...seriously?
These have a very deep insertion. So much so, that I have to make sure I don't put them in too far and damage my eardrum. Leaves the VSD1 stick far out of my ear.
These tamed the bloated bass, brought the mids to meet the lows/highs. Most interesting though, removed most of the 4k peak and 90% of the sibilance on tracks that are naturally sibilant.
Specifically Dashboard Confessional - Screaming Infidelities (live). That track is just stupid sibilant and some how these tips annihilated those negatives.
***Honestly I'm still blown away by the changes, enough to make me want to sell off my CKN70s, except the comfort of those tips is the worst, so it's a no go.
If only the Tri-flanged tips were more comfortable for me, it would be a no brainer. Unfortunately, it just feels too awkward/uncomfortable for me
Sony Hybrid: I only mention these because I find them the most comfortable with these.
Foam tips: Not very comfortable, negligible sound differences.
Wide-boar tips: Auvio ( & others not mentioned) - Least pleasant SQ. I'd avoid them if possible.
Conclusion: I found these enjoyable for bass heavy music. Less fatiguing than the CKN70s, but also less engaging for rock, vocals, or detailed tracks where you want good separation. These greatly benefit from a little EQ. I suggest a 2-3dB @ ~110Hz & ~4k Hz.
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Edit: Almost forgot, the HS2 was perfect. So easy to work with and make A/Bing a lot easier and more accurate IMO.