Schism (Tool) bass tone and bass amp settings

Schism bass tone on a Fender Rumble 40 V3: light drive (Drive 3.5), medium gain (Gain 5), forward high-mids (High Mid 3), bridge J pickup.

The original gear on this recording is not documented by a source we trust.

Settings for your amp

Pick a reference amp

Schism settings on a Fender Rumble 40 V3

Fender Rumble 40 V3 settings for every song

AmpFender Rumble 40 V3

Gain5
BrightOff
ContourOff
VintageOff
OverdriveOn
Drive3.5
Level5
Bass+1
Low Mid+1
High Mid+3
Treble+1
Set to your roomMaster

BassPassive P/J bass

Neck Volume (P)7Keep some P pickup blend for punch beneath the bridge growl
Bridge Volume (J)10Favor the bridge pickup for tighter, more aggressive definition
Tone8
The same settings in text

Amp

Gain
5
Bright
Off
Contour
Off
Vintage
Off
Overdrive
On
Drive
3.5
Level
5
Bass
+1
Low Mid
+1
High Mid
+3
Treble
+1
Master
Set to your room

Passive P/J bass

Neck Volume (P)
7
Bridge Volume (J)
10
Tone
8

Schism settings on an Ampeg Rocket Bass RB-108

Ampeg Rocket Bass RB-108 settings for every song

AmpAmpeg Rocket Bass RB-108

SGTOn
Set to your roomVolume
Bass+1
Midrange+2
Treble+1

BassPassive P/J bass

Neck Volume (P)10Keeps the low-mid foundation strong
Bridge Volume (J)7Adds bridge growl without overwhelming the P pickup
Tone8
The same settings in text

Amp

SGT
On
Volume
Set to your room
Bass
+1
Midrange
+2
Treble
+1

Passive P/J bass

Neck Volume (P)
10
Bridge Volume (J)
7
Tone
8

A blendable bass overdrive can layer grit while preserving clean low end.

Schism settings on any bass amp with Bass, Mid, Treble, Drive

Amp

Bass5
Mid7.5
Treble6.5
Drive3.5

BassPassive P/J bass

Neck Volume (P)7Blend in punchy low mids beneath the bridge pickup.
Bridge Volume (J)8Emphasize the articulate, growling bridge-pickup character.
Tone8
The same settings in text

Amp

Bass
5
Mid
7.5
Treble
6.5
Drive
3.5

Passive P/J bass

Neck Volume (P)
7
Bridge Volume (J)
8
Tone
8
The control panel of a vintage guitar amplifier, close up

Questions

What are the Schism settings on a Fender Rumble 40 V3?

For the Schism bass tone on a Fender Rumble 40 V3, set Gain 5, Overdrive On, Drive 3.5, Level 5, Bass +1, Low Mid +1, High Mid +3, Treble +1; on the passive P/J bass, Neck Volume (P) 7, Bridge Volume (J) 10, Tone 8. Set Master to your room. They are AI-assisted starting points; adjust them by ear on your own amp.

What are the Schism settings on an Ampeg Rocket Bass RB-108?

For the Schism bass tone on an Ampeg Rocket Bass RB-108, set SGT On, Bass +1, Midrange +2, Treble +1; on the passive P/J bass, Neck Volume (P) 10, Bridge Volume (J) 7, Tone 8. Set Volume to your room. They are AI-assisted starting points; adjust them by ear on your own amp.

Can I get the Schism tone on my own amp?

Yes. The settings above cover 2 reference amps and any amp with the basic controls. For your exact rig, KnobMaster, an iPhone app, sets every knob of your own amp, bass and pedals for Schism, using only the controls your gear has.

Get it for your exact rig

KnobMaster sets every knob of your own amp, bass and pedals for this song.

Download KnobMaster on the App Store

Settings are AI-assisted starting points, updated on October 18, 2026.

Photographs: “A close view of a vintage guitar amplifier”, Shixart1985, CC BY 2.0, Wikimedia Commons.

Fender, Ampeg and the other gear names on this page are trademarks of their owners; KnobMaster is not affiliated with them.