ernie1958 wrote:Didier wrote:Home made bass cut passive filter
Hi Didier...why does Gege use the bass cut filter...doesn't that alter the sound drastically,meaning almost no bass end?
A bass cut filter does act like a bass tone control, it only cuts the very lower bass with little noticeable direct effet on tone.
Such a bass cut filter exists in the vibrato channel of AC15 and AC30, and there are many clues that Hank used this channel in the early years, even when not using the vibrato.
It's likely more the resonance and phase shifts brought by this kind of filter which explains its influence.
Charlie's "Cutting Edge" is a passive 4 sections RC filter, giving a theorical 24 dB/oct cut. We have no details about the Ariab, but it's probably similar.
When Gégé and Patrice Bastien started to work on "that sound" nearly 10 years ago, they discoverd this feature, and such a filter has been part of Patrice's PB Box since the first model back in 2000 (among other things).
The one now used by Gégé is similar to Charlie's one, but with more sections.
Of course, contrarily to what some people believes, such a filter is not enough alone to get "that sound", but it's part of it.
Didier