Les Claypool

Here is Les Claypool's artist page on the official DR Strings website. It says he uses these strings.

In this video, you can see Les Claypool's rack behind him and a DBX 160A can be seen

Used on basically all of 1997's "Brown Album". according to this old web interview/article, Les confirms that the main amp he used on the Brown Album was this small solid-state bass amp. he states, " for me, it's easier to get tones out of smaller, quieter amps, because you're not feeling the big sound in the room, but just hearing what the mic hears. The mic can't feel the rumble that you feel through the ground. Anyway, our success rate has been higher when we've kept the volume's down."

You can see Les playing a American Pro II P Bass in this photo.

In the personnel section of the album "Pork Soda," it is documented that Les Claypool played a mandolin, of an unspecified model, on the track "Pork Chop's Little Ditty."

In the provided image, Les Claypool is pictured with the Pachyderm Instruments Les Claypool Custom 6-String Bass by Dan Maloney.

According to Jim Dunlop's website, Les Claypool is confirmed to use the MXR M288 Bass Octave Deluxe.

According to Jim Dunlop’s website, Les Claypool uses an MXR Ten Band graphic equaliser.

In this instagram post you can clearly see a set of EMG PJ pickups in his six string Pachyderm Bass on slide 8