Iris amp settings — Vox VT40X

The The Goo Goo Dolls guitar tone for “Iris”, dialed in for a Vox VT40X with a PRS SE Custom 24. Studio cut, Dizzy Up the Girl (1998) - Iconic acoustic rhythm part

Original rig

Taylor acoustic guitars, Guild 12-string acoustics, studio condenser microphones

Shimmering, open, resonant acoustic strumming with crisp top-end chime and controlled low-end boom

Amp settings — Vox VT40X

CHANNELDELUXE CL (Clean model)BOOSToff

Knob	Setting (0–10)
Gain	2
Bass	3
Mid	5
Treble	8
Reverb	4
Master	6

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Guitar

PICKUPmiddle TONE10 VOLUME8

Signal chain

01Onboard Reverb (Hall/Room)

Select the onboard Hall or Room reverb model on the VT40X

Reverb Level 4

Why these settings

To emulate an acoustic guitar on a solidbody electric with humbuckers, the VT40X is set to the ultra-clean Deluxe model with gain kept very low to avoid breakup. Bass is rolled off significantly to prevent muddy humbucker boom, while treble is pushed to recreate the acoustic pick attack and string sparkle. The middle pickup position with guitar volume slightly rolled off uncompresses the signal and mimics a bright, airy acoustic dynamic.

PRO TIPThe secret to the entire song's sound is the unique alternate tuning: B-D-D-D-D-D (low to high: tune bottom string down to B, 5th string down to D, 4th string stays D, 3rd string stays D, 2nd string up to D, 1st string down to D). Strum with a thin pick across all open strings for the authentic droning chime.

Get this tone on your amp

These settings are for a Vox VT40X. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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