Got these in today...
Elecom's GrandBass wireless neckband style earphones. It is neckband since the pods rest on the neck above the clavicles, not hanging and bouncing around. Again solid value for a lower price. ~$50 and tries to pack in everything you might want. Lightweight at 14 grams, BT5.0 class1, SBC/AAC/aptX/aptX LL, iPhone camera shutter control, music sharing(can connect to two phones at the same time), new hourglass shape housing and two position post for nozzle length adjustment. Keeping it small and light and using normal drivers instead of optimized for BT ones does keep the battery at 5 hours but the trade off kinda has to be made esp. at the price.
They basically took the GrandBass GB1000 and made it into a wireless....
...but improved it where it needed to be improved. Same 12mm 3 layer driver PEEK + TPU + PEEK diaphragms but built with a new dual chamber housing around it and the driver's front cap changed to balance the sound away more from the bass end.
From the 5 hole cap to...
...multiple holes radiating the edge with a bigger center treble hole. They also took the Bass boost feature from before and added a second one so it goes Flat > Bass1 > Bass2 so you have 2 levels of boost now. I found an iPhone measured F.R. of the three modes...
Looks done right and I can confirm those graphs by ear are pretty much spot on. One nicely balanced but not lacking Off/Flat setting, one fun boost that is punchy but not over done, and one boomer for the bassheads. Mids a bit forward off and they drop a bit with each of the next 2 settings and that treble peak is nice to always keep some sparkle and those cymbals in the mix.
So far, light, great fit and comfort. Haven't settled on tips just yet. Most likely M Earfits. Stock are probably better changed to wider bore than the stock ones. Comfy tips solid black tips not the hybrid type. Sound is pretty great. A large circle very even in terms of width, height, and depth. Nice air so not thick but spaced out where things can breath. No boost applied they are delightfully mid forward with an even bass foundation and the right amount of treble sparkle with good detail across the board. Bass is already quite tight and well separated out and even from sub to low to midbass and hi-midbass. A good sounding earphone even if a GB model since the GrandBass can be added in and in the two levels.
I think it still has the Koss-like sound with a bit more treble to it and not just one model you kind of have a KSC75 in the off setting and the Porta on the Bass1 setting. Also reminds me of the CNT1 which was a bass model with filters. Don't have that one anymore but the Elecom has an extra setting than the two filters and strikes me as capable of being more balanced and just flat out better sounding unless you put a really nice cable on the Semkarch. The Bass2 mode is most like the original GB1000 but with more forward and apparent mids and treble.
Ticks a lot of the boxes. The comfort, sound, and features for the price makes them a winner esp. in the budget wireless category. Seen other models turn into wireless and be the same thing for $25 or $30 more esp. if paying Qualcomm for aptX. They took the GB1000, improved the sound a noticeable degree, improved the fit and comfort by miles, improved the looks, and turned it wireless with aptX and features for the same price the wired model used to be.