Building a couple frankenphones and thought if anyone finds this interesting it'd be you guys. What we've got here is a throwback to my first ever built DIY ortho-phone which was a Sony MDR-CD380 with Audio Technica ATH-2 drivers. This is a Sony MDR-CD280 acquired for pennies off eBay. Extremely similar construction to the 380. Stock pads are "trash," they don't seal with your face, yet, oddly enough, I originally turned the pads inside-out and said the sound improved dramatically. Upon further inspection these pads were vacuum formed using some kind of liquid rubber that I'm guessing the fabric was impregnated with (seen in pictures 2 and 3) so when it cured it would retain that asymmetrical curvature (kind of like us painting the insides of our pads with Plasti-Dip, but for a different purpose). This also keeps sound from leaking
into the pad volume so the only place for bass to "leak out" would be in between the pad and baffle (which explains, in part, why my impressions were so favorable despite my better judgement), yet this, too, I originally alleviated by sealing the pads to the baffles with *drum roll* PlastiDip. But I didn't know any of this until I ripped the pads apart, so if you've ever found yourself wondering if you were
ever going to see lambskin CD280 ear pads in your lifetime you can now die peacefully:
ATH-2 drivers have since been installed. Needs some re-damping, somehow I actually managed to find a felt combination that completely sucked all upper midrange out of this notoriously shouty driver, I actually have to EQ the stuff back in, along with a little treble. Kind of makes me want to rip all the felt off and start fresh, and also makes me wonder how this felt combination sounded good in the drivers' last enclosure, but that was a pair of canalphones (yes, ATH-2 canalphones), so go figure.. The pads are very comfy, though, and they are the first time I've successfully made a pair of fitted pads for this housing or pads in this exact style, which can only mean one thing: I've gotten better at stitching.