So in a positive step I have put the beryllium tweeters back in, the battle of bliesma t25s and t25b has been well and truly won by the beryllium, just a cleaner sound and more detailed is why… it also seemed to clean up the imaging somehow, perhaps sharper phase due to the hard dome is why, or maybe a better freq response and therefore phase made for slightly better imaging, I genuinely don’t know the answer
i also tested impulse response and found a tweeter that I’d wired out of phase at the left amp… oops!
I’ve also been testing the new Emma 2022 tracks, they now supply a 320kbps mp3 set of files, cd quality flac and also a wav version and then a hi res wav version so I need to put a new usb 3.0 hub with a usb remote socket fitted in the dash as in competition the judge has to be able to use a proven form of the files from their usb drive ideally so the files aren’t doctored or modified in any way so it’s a level playing field