For Pro Soloist models with a 4034 or 4035 VCF, add $4 for VCF capacitors.
The 4075 filter contained an error which limited high frequencies passing through the filter. If you have a 4075, we offer a simple modification to widen the frequency range of the 4075. This can be added to any Pro Soloist/Pro DGX kit for $7.
Note: This kit contains an instruction manual that contains information about capacitor removal, and how to identify value and polarity of capacitors. This manual does not contain information about parts placement, part numbers, schematics, or PCB diagrams. This information is available in the ARP Pro Soloist Service Manual, which can be downloaded on our site or many others on the internet. If you are not comfortable reading schematics, soldering, and desoldering, please hire a professional to do this work.