Wampler · Overdrive

Wampler Plexi-Drive Settings Guide

The Wampler Plexi-Drive is a Marshall Plexi-in-a-box pedal — designed to replicate the character of a cranked 1959 Super Lead at manageable volumes and prices. It captures the mid-forward, harmonically complex overdrive character of the Plexi circuit without requiring a vintage 100W amp at full volume. Volume, Gain, Bass, and Treble controls allow full EQ shaping. The Plexi-Drive Deluxe version adds a Bright switch and a Pre control for additional versatility.

The best Wampler Plexi-Drive settings start with: Volume at 6/10, Gain at 6/10, Bass at 5/10, Treble at 6/10. Adjust from there based on your amp, guitar, and room volume. For Classic Rock: Volume 6/10, Gain 6/10, Bass 5/10, Treble 6/10.

What Each Control Does

Volume
Off
Loud
Output volume
Gain
None
Full
Distortion amount
Bass
Thin
Thick
Low-frequency EQ
Treble
Dark
Bright
High-frequency EQ

Recommended Starting Settings

Safe starting positions for any style. Adjust from here based on your amp and room.

6
Volume
6
Gain
5
Bass
6
Treble

All values on a 0–10 scale. These are starting points — fine-tune by ear.

Settings by Genre

Classic Rock
Volume6
Gain6
Bass5
Treble6

Moderate Gain for the classic Plexi crunch — mid-forward, warm, harmonically rich. The Plexi-Drive at Gain 6 produces the kind of overdrive that defined 1960s and 70s rock: not a saturated modern distortion but a complex, dynamic crunch where note articulation remains clear within the overdrive.

Blues-Rock
Volume6
Gain4
Bass5
Treble7

Lower Gain for pick-sensitive blues-rock overdrive. Treble at 7 adds the bright, cutting edge that Page and Beck used for lead lines. Gain at 4 keeps the pedal in the "pushed amp" territory rather than outright distortion.

Hard Rock
Volume6
Gain8
Bass5
Treble6

Higher Gain for more aggressive hard rock tones. The Plexi-Drive at Gain 8 moves toward distortion territory while retaining the Marshall character — not a modern metal sound, but aggressive classic rock that suits heavy riffing.

Clean Boost
Volume8
Gain2
Bass5
Treble5

Low Gain, high Volume as a Marshall-character clean boost. Into a slightly saturated amp, the Plexi-Drive at low Gain pushes the amp while adding the Plexi's characteristic mid-frequency emphasis. Useful as a solo boost that changes the amp's EQ character as well as volume.

Tips & Common Mistakes

  • The Plexi-Drive works best into a clean or slightly saturated amp — its character comes from adding the Plexi's preamp voicing in the pedal, then letting the amp handle power amplification. Into an already-distorted amp it stacks in conventional ways but loses the specific Plexi character.
  • The Bright switch (Deluxe version) changes the high-frequency response significantly — OFF produces the warmer, darker Plexi character of vintage amps; ON adds the brightness of new-condition vintage caps. Experiment with both.

Wampler Plexi-Drive — Common Questions

Best starting settings for Wampler Plexi-Drive: Volume at 6/10, Gain at 6/10, Bass at 5/10, Treble at 6/10. Adjust from there based on your guitar, room, and playing style.

For Classic Rock: Volume 6/10, Gain 6/10, Bass 5/10, Treble 6/10. Moderate Gain for the classic Plexi crunch — mid-forward, warm, harmonically rich. The Plexi-Drive at Gain 6 produces the kind of overdrive that defined 1960s and 70s rock: not a saturated modern distortion but a complex, dynamic crunch where note articulation remains clear within the overdrive.

For Blues-Rock: Volume 6/10, Gain 4/10, Bass 5/10, Treble 7/10. Lower Gain for pick-sensitive blues-rock overdrive. Treble at 7 adds the bright, cutting edge that Page and Beck used for lead lines. Gain at 4 keeps the pedal in the "pushed amp" territory rather than outright distortion.

Volume: Output volume (Off to Loud). Gain: Distortion amount (None to Full). Bass: Low-frequency EQ (Thin to Thick). Treble: High-frequency EQ (Dark to Bright)

The Plexi-Drive works best into a clean or slightly saturated amp — its character comes from adding the Plexi's preamp voicing in the pedal, then letting the amp handle power amplification. Into an already-distorted amp it stacks in conventional ways but loses the specific Plexi character. The Bright switch (Deluxe version) changes the high-frequency response significantly — OFF produces the warmer, darker Plexi character of vintage amps; ON adds the brightness of new-condition vintage caps. Experiment with both.

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