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I've recently updated my reference sheet -
Also uploaded PDF version.
Just bought another pair of PK1 150 ohm red film original drivers. Very pleased with my current best PK mod, I would like try with incoming Docomo shells
This is the greatest solder sucker ever! I have one and I love it!!
Everything that Engineer makes is drool worthy!
Are these drivers (and shells) really 15mm and not 14.8 or 15.4? I've seen some 15mm driver listings in the past but for a long time I believed that those are just vague specs as usual from aliexpress sellers. However I've encountered multiple shells recently which are too big for 14.8mm but too small for 15.4mm. For example this one: https://www.aliexpress.com/item/32903306888.html
If I remember correctly you've already tried this shell, will these snap on 15mm drivers without glue in your opinion?
I had to glue the driver to that shell
Finally made my first DIY earbuds. Had to modify the housing I got to fit the 14.8mm speakers.
Used a flat file to shorten the housing/lip, then a dremel to reduce the diameter and bevel the inside edge. PITA.
Originals on left, modified on right.
Contacted the 'Chitty store' on AE which sells the popular PK shell DIY SR2 16ohm buds, to ask if they sold the driver. They sent me a link, so I ordered them.
Housings came out pretty good, they are friction fit. No glue necessary.
Got them burning in, as these drivers are reported to need 100+ hours burn in.
Finished making version 2 tonight. Using the red film 150ohm diy pk1 driver.
Where do I find other Engineer products? I want to take a looksy!
To the specialists of E8000 glue here, two little questions :
how much time generally it takes to dry ? (especially to be safe enough to plug/unplug MMCX PINs mods from shells)
is that glue easy to remove for drivers glued with it with a airdryer ? or will it be fixed for ever ?
Many thanks in advance
E8000 dries very quickly and is easy to break, E7000 is more rubbery and used more for cell phone repair. Please never repair with superglue
Ok thanks for the advice, appreciated
btw just received today my E8000 (15ml), looks very good glue and quality, thanks for your recommendation
amazing stuff, to get that deep into it you must have great eyes........ and ears lol
So, just pulled my v1 earbuds off burn-in.
With the tuning foam I bought over the vent holes it is very clean/clear but bass rolls off early in thr midhbass or low mids. Sounds like my ACG, but with even less bass. Without the foam it has bass, but has way too much mid-bass.
Any tuning tips on how to reduce mid-bass but keep the bass & sub-bass?