On Apr 13, 2022, at 9:44 PM, Samuel Crider <dieseldude1@...> wrote:

Greetings Chris,

So have you checked to see if the fluid is dried up. That will definitely pinch them off. Even with new drivers I open them up to see now much of a mess exist. And many time remove 50% of the existing.?

Run a test CD and see where the top fades out. This naturally is ear dependent so figure out where you hearing peaks. Prior to owning a SPL meter more than once I thought I had such issues. Well it turned out to be my hearing which to date has slowly retreated down to around 13khz. Unfortunately, that fluid isn't as easy to change...

To date I've yet to listen to the 20. Just the 20i, so perhaps the factory differences should be explored. Are they the same tweet? I wouldn't write off the OEM tweets untill proven to be faulty once the fluid is cleared. Or perhaps they are known for long term issues and were replaced in the "i" upgrade. In my case I've usually found whatever current replacement to end up being a tad bright. Which may or may not improve over a long break in, etc..

If I had to guess I would inspect both the fluid and the cap in the xover. Then give it another whirl. And perhaps if necessary sub the cap with something with a bit brighter presentation.?

Other than that, shift to different cable tuning for a brighter presentation. Which could involve shifting both speaker wires and interconnects.?

Nevertheless, if you don't already have one. Consider picking up a vintage Radio Shack SPL meter. Either analog or digital is usable, and they can be had for as little as $10. It is very useful for all sorts of testing and setup.?

Best,

DD

On Wed, Apr 13, 2022, 8:26 PM Chris Lang <chrislang1976@...> wrote:

The OEM ones work- fuses good. I spoke with Oskar today at Hiquphon. Pretty pricey but I may try them.