Ibanez - CP-10 Compressor/Limiter [schematic]
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FloPoeKo
- Breadboard Brother
I just started tweaking a CP-10 (I also have the models CP835, CP9, CPL and BP5 at hand). A few things I found disappointing about the CP-10
and tried some ideas which worked pretty good.
- It doesn´t reach unity gain with humbuckers and sustain fully ccw even with Level at fully cw. I jumpered R48 (20k) which fixed that.
- It has too much low end for my taste. I lowered C12 from 1uF (high-pass-filter before level-control) to the CP-9 0,22uF which fixed that.
- It sounds a bit muffled. I lowered C6 (which tames the inherent treble-boost of the BA6110) from 0.001uF (1000pF) to 680pF (which is good) and 470pF (still good but maybe to much for some folks, especially with singelcoils). Maybe 560pF is a perfect value (which I didn´t have at hand). Even with 470pF the noise at least in a clean setting was still very acceptable. Maybe raising the input-impedance via R4 (510k) would also help.
- How can I lower the minimum sustain? I figured R11 might be the spot but I´m not quite sure...
If someone would take the time to explain the different parts directly connected to the BA6110 an what they do (what affects what) would be great.
and tried some ideas which worked pretty good.
- It doesn´t reach unity gain with humbuckers and sustain fully ccw even with Level at fully cw. I jumpered R48 (20k) which fixed that.
- It has too much low end for my taste. I lowered C12 from 1uF (high-pass-filter before level-control) to the CP-9 0,22uF which fixed that.
- It sounds a bit muffled. I lowered C6 (which tames the inherent treble-boost of the BA6110) from 0.001uF (1000pF) to 680pF (which is good) and 470pF (still good but maybe to much for some folks, especially with singelcoils). Maybe 560pF is a perfect value (which I didn´t have at hand). Even with 470pF the noise at least in a clean setting was still very acceptable. Maybe raising the input-impedance via R4 (510k) would also help.
- How can I lower the minimum sustain? I figured R11 might be the spot but I´m not quite sure...
If someone would take the time to explain the different parts directly connected to the BA6110 an what they do (what affects what) would be great.