Marshall MG30FX settings
Under the Bridge settings for Marshall MG30FX
Red Hot Chili Peppers · adapted 2 times on ToneAdapt
To get the Red Hot Chili Peppers "Under the Bridge" riff tone on a Marshall MG30FX, set Gain 0, Bass 4, Mid 5, Treble 6, Reverb 2. Use the neck + middle pickup with your guitar's tone on 6-7 and volume on 7.
Riff settings
Adapted for a Fender Stratocaster · updated 2026-05-10
- Pickup
- Neck + Middle
- Guitar knobs
- Tone 6-7 · Volume 7
Marshall MG30FX knobs
- Gain
- 0
- Bass
- 4
- Mid
- 5
- Treble
- 6
- Reverb
- 2
Built-in effects
- Reverb on (spring) · 4
Playing tips
- Use your amp's built-in chorus set to a moderate level to add subtle modulation to your clean tone.
- Keep your playing light and articulate to capture the chiming quality of the original tone.
- Experiment with fingerstyle for a warmer, smoother attack.
The original rig
What Red Hot Chili Peppers used on the recording, for reference. ToneAdapt translates this to the controls your Marshall MG30FX actually has.
- Guitar
- Fender Stratocaster
- Amp
- Fender Twin Reverb
- Gain
- 0
- Bass
- 5
- Mid
- 5
- Treble
- 6
- Presence
- 5
- Reverb
- 4
Different guitar or pedals? Get Under the Bridge adapted to your exact rig
These settings were generated for the gear named above. ToneAdapt adapts Red Hot Chili Peppers's tone to your own guitar, pickups, amp and pedals in seconds.
Frequently asked questions
What are the best Marshall MG30FX settings for Under the Bridge?
Set Gain 0, Bass 4, Mid 5, Treble 6, Reverb 2.
Which pickup should I use for Under the Bridge?
Neck + Middle, with the guitar's tone at 6-7 and volume at 7.
What gear did Red Hot Chili Peppers use on Under the Bridge?
Guitar: Fender Stratocaster. Amp: Fender Twin Reverb.
Will these settings work with my guitar?
These settings were adapted for a Fender Stratocaster. Different pickups change how much gain and treble you need. ToneAdapt adapts the tone to your exact guitar, pickups, amp and pedals.
Under the Bridge on other amps
Popular songs on the Marshall MG30FX
- Master of Puppets · Metallica
- Sweet Child O' Mine · Guns N' Roses
- Enter Sandman · Metallica
- Walk · Pantera
- Back in Black · AC/DC
- Hotel California · Eagles
- Whole Lotta Love · Led Zeppelin
- Crazy Train · Ozzy Osbourne
- Highway to Hell · AC/DC
- Stairway to Heaven · Led Zeppelin
- Welcome To The Jungle · Guns N' Roses
- Raining Blood · Slayer
Settings are generated by ToneAdapt's tone adaptation for the gear named on this page and are a starting point — every amp, guitar and room is a little different.