Yeh unfortunately im with you. Im usually not fussy with fit and that bulb formed a strong seal without a tip. But after couple of days it was painful to put them back in.
I will have a chance to try it again this friday.
Wow. You give it a proper thought. If i wanted C9 i would have placed an order before point 2).
Well i think general consensus was that m8 was somewhere between dx300 and R8.
And im hearing that M9 is ahead of sp2k now so i think its a decent leap.
I made a specific directional choice for my DAPs and I am not sure I made the right one and almost nobody can provide sufficient impressions to verify it because hardly anyone seems to be in both camps at the same time.
I decided that I was going to standardize on midfi DAPs enhanced by C9 rather than investing in TOTL DAPs. I did that for a number of reasons.
1) Midfi DAPs tend to be much more mobile since their AMP sections are much smaller and more portable.
2) I have invested into high quality Desktop gear that I believe out performs the TOTL DAPs. So, I thought a TOTL DAP would be somewhat unecessarily redundant.
3) C9 would scale up the midfi DAPs to near TOTL DAP quality and add tube sound.
Here is what I have actually learned and still need to verify.
1) Midfi DAPs are indeed more portable. This makes mobility very good. For walking around outside, I still use both dongles and midfi DAPs so the use case for mobility is still competitive.
2) C9 really does significantly improve the sound quality of a midfi DAP. And, the tube sound does a good job of warming up the sound and rounding off the sharp edges of some IEMs that need it. However, the tube sound is not competitive with a true tube amp. It's only a minor, but noticeable change in timbre. To compare it to tubes really does an injustice to tube amps. It's not a tubey sound at all. Since I love the tube sound, I recently purchased a WA8.
3) The C9 really does a great job at driving full sized headphones. In fact, it might do a better job with full sized headphones than IEMs. The C9 when paired with a DAP with a dedicated Line Out like the DX300 with AMP12 is a truly great sound. If I were limited in space, I could use this as my permanent desktop solution. It can drive all of my headphones except for Susvara. HE1000v2 sounds fantastic with it and that combo sounds better than all of my IEMs.
4) A dedicated line out make a material difference to sound quality. When I had the R6 2020, since it has a dedicated line out, it sounded great with C9. The DX300 with AMP11 mki and mkii did not sound that good. With AMP12, it's magic. The RU6 sounds terrible with the C9.
5) That said, I am still tempted by TOTL DAPs. DX300 MAX, M17 and M9 are singing their siren's song and my head is spinning. What I found is that C9 improves everything I pair with it. So, my guess is even a TOTL DAP will sound better, but I haven't tested it.
What I really want to know is this. How does a DX312 + C9 compare to DX300 Max. The only A/B test I have heard of is from Auricon who seems to prefer DX300 Max. When I get home, I will test RS6 + C9. Same question. How does that compare with R8 or future RS8? Maybe
@twister6 can help out here.