BrownMark

As seen in Gallien Krueger's Tweet featuring BrownMark.

Brownmark used an Alembic Spoiler with Prince on the Purple Rain and Parade tours. The Spoiler had a built interface for controlling a Roland synth, possibly a GR-77B.

Brownmark used a Fender Jazz with Prince in the early to mid 1980s.

Brownmark used an Ampeg SVT with Prince in the early to mid 1980s.

In an Instagram post, BrownMark showcases his Fender Geddy Lee Signature Jazz Bass, referring to it as his "new gig bass" following an overhaul.

How are you recreating that classic sound these days?

“My sound is simple. I learned this from Prince: get rid of all active electronics. I play a passive Fender Geddy Lee Jazz with heavy-gauge Ernie Ball Cobalt flatwounds on the E, A and D strings. Flatwound strings are funky. My G string is a medium round-wound GHS Boomer for that bright pluck. The only thing fancy is a Boss Super Octave so I can go low. Bass in your face!”

How are you recreating that classic sound these days?

“My sound is simple. I learned this from Prince: get rid of all active electronics. I play a passive Fender Geddy Lee Jazz with heavy-gauge Ernie Ball Cobalt flatwounds on the E, A and D strings. Flatwound strings are funky. My G string is a medium round-wound GHS Boomer for that bright pluck. The only thing fancy is a Boss Super Octave so I can go low. Bass in your face!”

BrownMark used the Roland GR-77B bass synth during Prince's Parade tour, as noted on Guitarcloud.

As seen in Gallien Krueger's Tweet featuring BrownMark.

As seen in Gallien Krueger's Tweet featuring BrownMark.