preamp (jhs colour box 500) issue

[siloshinola]

Trying to record DI, using this 500 series preamp. It's working but not without a lot of noise (the opposite of the kind I can deal with; it goes silent when I am not touching my bass, but starts to hum LOUD when it's in hand). So I'm at a point where I wonder if it's my CIJ fender mustang's pickups. Any thoughts there, are they notoriously noisy?

I've tried:
adding a Radial JDI passive DI box before & after the preamp
turning on every buffer (one on the preamp is -20db, on the DI box its got a -15)
swapping every cable in the signal flow
using both Pro Tools & Logic Pro X

for context, my interface is an Antelope Orion Studio Thunderbolt

Suggestions welcome!

 

[Michedelic]

Trying to record DI, using this 500 series preamp. It's working but not without a lot of noise (the opposite of the kind I can deal with; it goes silent when I am not touching my bass, but starts to hum LOUD when it's in hand). So I'm at a point where I wonder if it's my CIJ fender mustang's pickups. Any thoughts there, are they notoriously noisy?

I've tried:
adding a Radial JDI passive DI box before & after the preamp
turning on every buffer (one on the preamp is -20db, on the DI box its got a -15)
swapping every cable in the signal flow
using both Pro Tools & Logic Pro X

for context, my interface is an Antelope Orion Studio Thunderbolt

Suggestions welcome!

This inquiry should go in either the ‘Recording Gear’ or ‘Effects’ forums, maybe even ‘Pickups And Electronics’, to reach the right people.