If anyone isn't happy with their Qian39 or K's 64 ohm as is, both are excellent modding candidates. But, be aware you'll need to tape down the K's driver. They are SUPER magnetic!
It started with me wanting to use the K's shell and cable for the Qian39 driver - sounded good Mostly like the stock sound but improved in a few ways, mostly balance and detail. A very forward sound with very present mids but still with very good soundstage and dynamics.
What really surprised me was putting the K's 64 driver on the Koss cable and Qian39 shell. The drivers on both are attached to the shell cover, and the cover on the K's is bigger than the 39's. So K's driver fit very easily on the 39 shell, where the 39 driver on the K's shell was a lot more difficult. Anyway, I had been listening to the K's 64 all day, and didn't like it because of a weird uncomfortable and unnatural sounding treble and just average bass. But in the Qian39 shell the bass is far improved and the treble has become totally warm and comfortable while still having an excellent extension!
Maybe the qian39 shell is actually what emphasizes the bass the most? I can't tell which of these Frankenbuds I like more, but I can easily say I'm
extremely happy with both! The K's 64 driver in the Qian39 shell is possibly better than a stock Qian39 and the K's shell and silver cable brings out tons more of the 39's driver's capabilities while also keeping the bass from being too overpowering. I still love the stock 39's sound with all that powerful bass but there is no question I am extremely happy with the results of both of these.
sometimes you just need to swap cables and shells on 2 you don't like a ton to get 2 winners! like i said before - 2 birds with 1 soldering iron...
