After
a while one comes at a point where one want to tune the speaker.
I wanted to upgrade the already very good M-Cap from Mundorf
with there even better M-Cap Supreme.
Here you can see the 4 parallel Mundorf
22 uF M-Cap Supreme.
You can compare the size of the 6 dB/Oct filter with
the size of a normal 12 cm CD.
In front you see the equivalent (3x33uF) Mundorf
M-Cap's
you can notice that an extra C was needed (mounted on top of the 4 big 22 uF's)
Here you can observe the floating inner cabinet.
The filter is in its own a separated airtight cabinet, mounted on a separate board which is, once more, decoupled from the cabinet.
This all should give perfect conditions for the filter.
The filter is free air wired. The inner cabling is QED silver anniversary.