200e

hi,

- what is meant by 'Amplitude'? Is this what is called resonance on
other filters? And if so, does the 291e self oscillate?
- What are the frequency ranges of the filter? The frequency pot has a
max value of 4k but the bandwidth pot has a max value of 100 which I
don't understand.
- I would also be interested in hearing opinions about the 291e. Is it
an essential module for a small 200e configuration? It seems so
powerful and unique.

thank you for your help!

Jorg