I received the custom tuned BGVP filters, courtesy of
@tgx78. To me, they sound ideal, and I may just be leaving them on indefinitely, and putting the stock filters away. I like it both in Monitor mode, if I want more note weight with thicker lower mids, and in Pop mode, if I want a lighter, airier, thinner sound. I haven‘t done critical comparisons with the other nozzles yet, but I kind of don’t feel the need to. Based off of limited memory, FWIW, I think the upper mids are similar to the gold nozzle, but the treble is similar to the silver nozzle. There is clear, crisp treble, with good upper treble air. The mids are full and natural sounding, with good clarity, but w/o any shoutiness or upper midrange glare. I liked the sound of the gold nozzles, except that the rolled off treble sounded too dark for my tastes.
As much as I like the sound, I think there may be even more non-sonic advantages to the BGVP filters. First off, since it’s an empty nozzle, then filled with dried alcohol swabs in a circumferential manner, I would guess that it should not have problems with developing channel imbalances due to humidity, since there are no filters to clog. The nozzles are also smaller, so this should help those that have had issues with the stock nozzles being too large, particularly in length. While the stock nozzles fit me fine, the issue I had with them was due to the length. I really like using the Eartune U elliptical ear tips with the LZ A7, but they are small and shallow ear tips. The end of the stock nozzles were almost completely flush with the end of the ear tips. While I suppose this would minimize or completely neutralize any effect that the ear tips would have on the sound, it just bothers me having the nozzles protrude so much. Lastly, it is MUCH easier to put on and take off ear tips from the BGVP filters compared to the stock LZ A7 filters. I couple of times I was almost sure I was going to rip the ear tip trying to pull it off the stock nozzles.
Here are some pics.
Stock nozzle on the right.
Stock nozzle on the left.
The one thing nicer about the stock nozzles is the rubber O-ring. I need to find some for the BGVP nozzle. They‘re not necessary, but are a nice touch.