Xotic AC Booster Settings Guide
The Xotic AC Booster is a two-knob (Gain, Volume) boost/light overdrive with a Treble and Bass EQ section, designed to reproduce the chimey, bright-midrange character of an AC30 Top Boost circuit in a pedal. It is particularly effective in front of clean American amps (Fender) where it adds Vox-like brightness and bloom without imposing a harsh distortion character. Popular as an always-on boost for Strat and Tele players.
The best Xotic AC Booster settings start with: Volume at 5/10, Gain at 3/10, Bass at 5/10, Treble at 6/10. Adjust from there based on your amp, guitar, and room volume. For Indie / Jangle: Volume 6/10, Gain 3/10, Bass 4/10, Treble 7/10.
⚡ Start Here — Recommended Settings
| Control | Starting Position | Range |
|---|---|---|
| Volume | 5/10 | Silent → Loud |
| Gain | 3/10 | Clean → Saturate |
| Bass | 5/10 | Cut → Boost |
| Treble | 6/10 | Cut → Boost |
These are universal starting points. Adjust based on your amp, guitar, and room. Scroll down for genre-specific settings and artist-documented positions.
What Each Control Does
Recommended Starting Settings
Safe starting positions for any style. Adjust from here based on your amp and room.
All values on a 0–10 scale. These are starting points — fine-tune by ear.
Settings by Genre
Low Gain, boosted Treble — the AC Booster as a Vox-flavoured brightness enhancer. Bass 4 thins the low end to produce the characteristic jangly Rickenbacker / Vox character. This setting into a clean Fender produces an approximation of an AC30 Top Boost tone.
Gain 5, balanced EQ — a useful British-flavoured boost/OD for blues. The AC character produces more harmonic richness in the mid-highs than a straight clean boost.
Minimal Gain, high Volume — a transparent clean boost that adds level and slight AC brightness. Excellent for pushing a tube amp front end for lead work or for compensating level differences between guitars.
Higher Gain gives a more aggressive British-flavored crunch than the blues or indie settings, while retaining more note articulation than a dedicated high-gain distortion pedal would at the same output level.
Very low Gain with Bass cut and Treble pushed produces a bright, articulate edge-of-breakup tone well suited to Telecaster-style country picking.
Tips & Common Mistakes
- The AC Booster in front of a Fender amp at low Gain is one of the most effective ways to approximate Vox AC30 character without owning an AC30 — the clean headroom of the Fender plus the Vox-voiced treble character of the AC Booster produces a convincing hybrid tone.
- Because this pedal is voiced with a British-amp-style treble emphasis, pairing it with an already bright amp can push the combined tone too far toward harshness — consider pulling the amp own Treble back slightly when adding this pedal.
- The Gain range covers a wide territory from clean boost to genuine overdrive — spend time exploring the lower third of the range specifically, since many players jump straight to higher settings and miss the pedal most versatile, dynamic zone.
- Guitar volume-knob cleanup works well on this circuit at low-to-moderate Gain settings, letting one Gain setting cover both rhythm and lead tones depending on how the guitar volume is set.
- For recording, this pedal adds enough harmonic color to a clean DI signal that it is worth trying even on parts intended to stay mostly clean — a very low Gain setting can add subtle character without reading as an obvious effect.
FAQ
Xotic AC Booster — Common Questions
Best starting settings for Xotic AC Booster: Volume at 5/10, Gain at 3/10, Bass at 5/10, Treble at 6/10. Adjust from there based on your guitar, room, and playing style.
For Indie / Jangle: Volume 6/10, Gain 3/10, Bass 4/10, Treble 7/10. Low Gain, boosted Treble — the AC Booster as a Vox-flavoured brightness enhancer. Bass 4 thins the low end to produce the characteristic jangly Rickenbacker / Vox character. This setting into a clean Fender produces an approximation of an AC30 Top Boost tone.
For Blues: Volume 5/10, Gain 5/10, Bass 5/10, Treble 5/10. Gain 5, balanced EQ — a useful British-flavoured boost/OD for blues. The AC character produces more harmonic richness in the mid-highs than a straight clean boost.
Volume: Output level. (Silent to Loud). Gain: Input gain. Low settings produce clean boost; high settings produce chimey overdrive. (Clean to Saturate). Bass: Low-frequency EQ trim. (Cut to Boost). Treble: High-frequency EQ trim. (Cut to Boost)
The AC Booster in front of a Fender amp at low Gain is one of the most effective ways to approximate Vox AC30 character without owning an AC30 — the clean headroom of the Fender plus the Vox-voiced treble character of the AC Booster produces a convincing hybrid tone. Because this pedal is voiced with a British-amp-style treble emphasis, pairing it with an already bright amp can push the combined tone too far toward harshness — consider pulling the amp own Treble back slightly when adding this pedal. The Gain range covers a wide territory from clean boost to genuine overdrive — spend time exploring the lower third of the range specifically, since many players jump straight to higher settings and miss the pedal most versatile, dynamic zone. Guitar volume-knob cleanup works well on this circuit at low-to-moderate Gain settings, letting one Gain setting cover both rhythm and lead tones depending on how the guitar volume is set. For recording, this pedal adds enough harmonic color to a clean DI signal that it is worth trying even on parts intended to stay mostly clean — a very low Gain setting can add subtle character without reading as an obvious effect.
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