I decided to do a teardown of the Delta Complimentary Earphones. I don't know if anyone remembers my review of these.

I performed this teardown by applying gentle force on them with a rock (the rock they're sitting on). (Un)fortunately, the Deltas did not survive the teardown. But no fear! I have two more pairs of them. I may try to see if I can tune those a bit.

Join me for more Delta headphone adventures! I may order a pair of their over ears as well for fun and see what I can do with them.

Try to make them sound warmer by adding fire

Another set that did not survive the 1 grit

Dingus ! bonk

I have plans to turn a pair of these into in ear binaural mics for measurements

I think a big problem of theirs is the open back design.

I have a feeling it was for safety or convenience (for the flight attendants). Whenever I would push them back into my ears the frequency response drastically changed for the better (but obviously still not great.

I wish whoever measured them would measure again with the ports covered just for kicks.

I watch one movie with them before switching to the ier-z1r (not provided by Delta).

These Delta in ears are just insane. Super resonant. Nasty mids only. You can barely hear dialog because the frequency response emphasizes so much else.

As I mentioned above, try covering the ports. It drastically (still within the range of sh*t) improves (?) the sound.

I used some sticky tack to cover the holes and then used duct tape over it, I switched the ear tips to a pair of the stock tips from my Shuoer 12, and then I ripped the cotton off of a que tip and put that inside the tips. That seemed to help a lot. If there was a way to open them up without breaking them and filling the empty shell with something to dampen the resonance, it would be an interesting experiment. I may try to do that. What I did seemed to help a lot with the sound to make it much more tolerable. I just want some more treble and I wanna do it without EQ. I think I'm gonna keep messing with them for fun. Maybe a detachable cable mod?????? The possibilities are endless.

I do wanna get one of those knockoff IEC-711 measurement rigs so I can do my own measurements for fun.

That would be really interesting to see!