[BlueWindNoise]

Darn international post. 10-14 days to recieve my IT01.

I realize it doesn't help right now, but it is worth it.

 

[HerrXRDS]

How normal is driver flex on IT01? Got mine and it's the worst I had on any IEM. I always insert IEMs gently so I don't get driver flex on any of my headphones, but with these I always get some crackling noise. Checked the vent hole and it doesn't seem to be clogged, air can pass. I am thinking to return them to Amazon and try another set.

 

[kukkurovaca]

How normal is driver flex on IT01? Got mine and it's the worst I had on any IEM. I always insert IEMs gently so I don't get driver flex on any of my headphones, but with these I always get some crackling noise. Checked the vent hole and it doesn't seem to be clogged, air can pass. I am thinking to return them to Amazon and try another set.

Pretty normal, as far as I know.

 

[boblauer]

Here's a thought and it's just a thought, could it be the graphene driver that flex's a bit more than other drivers? Does anyone have another graphene based driver to compare to? Personally I do not find annoying at all but that's just me.

 

[Slater]

Here's a thought and it's just a thought, could it be the graphene driver that flex's a bit more than other drivers? Does anyone have another graphene based driver to compare to? Personally I do not find annoying at all but that's just me.

My graphenes:

• Magaosi K3 Pro - flex
• UiiSii CM5 - no flex
• BlitzWolf ES1 - no flex
• **** PT15 - flex
• QKZ VK1 - no flex

In my experience (regardless of diaphragm type), flex is related to the front vent (by the nozzle). If an IEM doesn't have a front vent, it's blocked with glue, or it's inadequately sized (ie too small), it won't allow pressure from insertion to vent fast enough, and you'll get flex.

 

[vladstef]

My graphenes:

• Magaosi K3 Pro - flex
• UiiSii CM5 - no flex
• BlitzWolf ES1 - no flex
• **** PT15 - flex
• QKZ VK1 - no flex

In my experience (regardless of diaphragm type), flex is related to the front vent (by the nozzle). If an IEM doesn't have a front vent, it's blocked with glue, or it's inadequately sized (ie too small), it won't allow pressure from insertion to vent fast enough, and you'll get flex.

How do you get flex with PT15 which is an earbud?

 

[Slater]

How do you get flex with PT15 which is an earbud?

I wear earbuds sideways (with no foam covers), so they quasi-seal in my ears. The sound improves 500%.

I've converted a number of people around here to the "Dark side(ways) of the Force" lol

 

[CoiL]

How normal is driver flex on IT01? Got mine and it's the worst I had on any IEM. I always insert IEMs gently so I don't get driver flex on any of my headphones, but with these I always get some crackling noise. Checked the vent hole and it doesn't seem to be clogged, air can pass. I am thinking to return them to Amazon and try another set.

My graphenes:

• Magaosi K3 Pro - flex
• UiiSii CM5 - no flex
• BlitzWolf ES1 - no flex
• **** PT15 - flex
• QKZ VK1 - no flex

In my experience (regardless of diaphragm type), flex is related to the front vent (by the nozzle). If an IEM doesn't have a front vent, it's blocked with glue, or it's inadequately sized (ie too small), it won't allow pressure from insertion to vent fast enough, and you'll get flex.

In case of IT01, it seems that vent hole material in front chamber of driver/nozzle is too "thick" as I get same occasional driver flex even when open-back.
But tighter that vent material is, faster and more punchy bass/percussion response is. So, it is good as it is when it comes to SQ - just need to use soft silicone tips and insert slowly.

 

[boblauer]

Good info on driver flex for these. Thanks all.

 

[SciOC]

Yeah, I'll second the idea of these having the most driver flex of anything in my collection...TBH I didn't really know what driver flex really meant until having these, and thought I was just having ear issues.

 

[bowei006]

How normal is driver flex on IT01? Got mine and it's the worst I had on any IEM. I always insert IEMs gently so I don't get driver flex on any of my headphones, but with these I always get some crackling noise. Checked the vent hole and it doesn't seem to be clogged, air can pass. I am thinking to return them to Amazon and try another set.

Normal. Have some on mine. It's not something that breaks breaks it.

 

[fritz1234]

I don't notice anything.

Or maybe my hearing is porked.

 

[George Taylor]

I've noticed on the left side, not the right. Doesn't really bother me though. As long as nothing break...

 

[CoiL]

Open-back IT01... sounds great. Soundstage width seems slightly improved and more "airy" open soundfield.
Need to tune bass quantity (mainly sub-bass) to little less... without EQ. I have ideas. These drivers have serious potential.
Backplates going to CAD drawing...

I was little surprised IT01 having another nylon mesh under metal nozzle mesh. Slightly improved clarity and details when open-nozzle, as expected.
Going to keep it open.
I keep my gem IEMs in hardcase all the time, clean my ears regularly and do long listening sessions in quiet environment, so, to me it is ok having open nozzle and driver helmholz resonator "enclosure" anyway has small hole in front of driver, so, harder to get any "dirt" onto membrane.

Bass quantity tune mod still in process but when I succeed - IT01 will be better sounding (flatter) than it already is, to me of course ;P

 

[bowei006]

NSFW picture above.

Avert ye eyes all who dare and love.