Deals

Equipboard helps you discover, compare, and find the right gear for your sound.

Sign up Log in

Artist or band Music gear Music gear to an artist Report a duplicate

Contact us About Merch store

© Equipboard Inc.

This page about Guyatone GST-OU5 Ultron is a stub. You can help improve it:

Guyatone GST-OU5 Ultron main image

Guyatone GST-OU5 Ultron

Guyatone GST-OU5 Ultron

See more

This product is Vintage or Discontinued

Find out who is using Guyatone GST-OU5 Ultron

Scott Shriner

1 wishlisted

2 saved

Page last updated Aug 11, 2025

Pricing and availability

Store

Reviews

Price

^* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Edit description

The Guyatone GST-OU5 Ultron is a sonic sculptor's dream, perfect for musicians looking to add dynamic and expressive filter effects to their sound palette. This compact pedal is designed to fit seamlessly into any pedalboard setup, offering a wide range of tonal possibilities for guitarists and bassists alike. With its optical filter circuit, the GST-OU5 Ultron responds to your playing dynamics with precise articulation, allowing for a highly expressive performance.

This pedal excels in delivering everything from subtle, warm tonal shifts to dramatic, sweeping filter effects. Whether you're crafting a smooth funk groove or exploring experimental soundscapes, the GST-OU5 Ultron's intuitive controls make it easy to dial in the perfect sound. Each knob and switch has been carefully designed to provide a tactile and responsive experience, ensuring you can focus on your music, not fiddling with settings.

Key Features:

Optical filter circuit for dynamic responsiveness
Versatile range of filter effects for various musical styles
Easy-to-use controls for quick sound adjustments
Compact design for pedalboard integration
Suitable for both guitar and bass players

Videos

Keyboard Instrument Chops and Gear

Keyboard Instrument Chops and Gear

Testing Lab02: Guyatone Ultron + Fender Rhodes 73

Video thumbnail for Testing Lab02: Guyatone Ultron + Fender Rhodes 73 by Keyboard Instrument Chops and Gear

Testing Lab02: Guyatone Ultron + Fender Rhodes 73

Keyboard Instrument Chops and Gear

Keyboard Instrument Chops and Gear

Reviews

Based on 0 Reviews and 0 Ratings

5 star

4 star

3 star

2 star

1 star

Artist usage

See how Scott Shriner uses Guyatone GST-OU5 Ultron

Scott Shriner

Bassist

Weezer

Verified via Photo

Used for Everything Will Be Alright in the End, as can be seen in this in-studio photo from this July 10, 2014 Entertainment Weekly gallery. It is a companion to this July 17, 2014 interview. The stompbox also appears in this December 10, 2014 Instagram post.

Album Usage

The Guyatone GST-OU5 Ultron has been featured on the following albums:

Guyatone GST-OU5 Ultron as heard on Everything Will Be Alright In The End by Weezer (2014)

Everything Will Be Alright In The End

Weezer (2014)

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Alternative Rock

Load More

Used With

Based on how musicians on Equipboard use Guyatone GST-OU5 Ultron, it is most commonly used with the following gear.

Wren and Cuff Tri Pie '70

Wren and Cuff Tri Pie '70 Fuzz Effects Pedals

1

Endangered Audio Research AD4096 Analog Delay

Endangered Audio Research AD4096 Analog Delay Delay Effects Pedals

1

Dirge Electronics Dirgetone Dirgedweller

Dirge Electronics Dirgetone Dirgedweller Delay Effects Pedals

1

TC Electronic PolyTune

TC Electronic PolyTune Pedal Tuners

1

Boss CS-2 Compression Sustainer

Boss CS-2 Compression Sustainer Compressor Effects Pedals

1

Similar

Add recommendation

1 alternative for Guyatone GST-OU5 Ultron, curated by the Equipboard community.

Mu-Tron Musitronics III Envelope Filter Filter Effects Pedals

Mu-Tron Musitronics III Envelope Filter

$750.00

1 available store

5.0 (16)

Vintage or Discontinued similar sound high-end alternative

1

More Guyatone Filter Effects Pedals

Guyatone Wah Rocker WR3 Filter Effects Pedals

Guyatone Wah Rocker WR3

$180.05

1 available store

5.0 (3)

^# 45

in Filter Effects Pedals Rank

Who’s using this:

Federico Miranda

4 artists using

Guyatone WR2 Wah Rocker Filter Effects Pedals

Guyatone WR2 Wah Rocker

$70.61

1 available store

4.0 (1)

^# 57

in Filter Effects Pedals Rank

Who’s using this:

6 artists using

Guyatone WRm5 Wah Rocker Filter Effects Pedals

Guyatone WRm5 Wah Rocker

Who’s using this:

3 artists using

Guyatone Flip Funky Box FB-X Filter Effects Pedals

Guyatone Flip Funky Box FB-X

Who’s using this:

Thomas Bangalter

MXR M222 Talk Box Filter Effects Pedals

MXR M222 Talk Box

$194.04 - $211.00

7 available stores

4.5 (51)

^# 1

in Filter Effects Pedals Rank

Who’s using this:

31 artists using

Electro-Harmonix Micro Q-Tron Filter Effects Pedals

Electro-Harmonix Micro Q-Tron

$77.00 - $112.50

9 available stores

4.0 (52)

^# 2

in Filter Effects Pedals Rank

Who’s using this:

Chris Wolstenholme

Blaster Silonga

26 artists using

Line 6 FM4 Filter Modeler Filter Effects Pedals

Line 6 FM4 Filter Modeler

$225.00

1 available store

4.5 (54)

^# 3

in Filter Effects Pedals Rank

Who’s using this:

John Frusciante

Justin Chancellor

59 artists using

Moog Moogerfooger MF-101 Lowpass Filter Filter Effects Pedals

Moog Moogerfooger MF-101 Lowpass Filter

$1,945.00

1 available store

5.0 (26)

^# 4

in Filter Effects Pedals Rank

Who’s using this:

42 artists using

Moog Moogerfooger Low-Pass Filter Filter Effects Pedals

Moog Moogerfooger Low-Pass Filter

$1,945.00

1 available store

4.5 (27)

^# 5

in Filter Effects Pedals Rank

Who’s using this:

John Frusciante

Josh Klinghoffer

32 artists using

EarthQuaker Devices Spatial Delivery V2 Filter Effects Pedals

EarthQuaker Devices Spatial Delivery V2

$169.00 - $192.00

4 available stores

4.5 (21)

^# 6

in Filter Effects Pedals Rank

Who’s using this:

Blaster Silonga

18 artists using

Electro-Harmonix Q-Tron Plus Filter Effects Pedals

Electro-Harmonix Q-Tron Plus

$164.00 - $192.30

9 available stores

4.5 (32)

^# 7

in Filter Effects Pedals Rank

Who’s using this:

14 artists using

Dunlop Heil HT1 Talk Box Filter Effects Pedals

Dunlop Heil HT1 Talk Box

$100.00

1 available store

5.0 (24)

^# 8

in Filter Effects Pedals Rank

Who’s using this:

21 artists using

Moog Moogerfooger MF-105M MIDI MuRF Filter Effects Pedals

Moog Moogerfooger MF-105M MIDI MuRF

$1,200.00

1 available store

5.0 (25)

^# 9

in Filter Effects Pedals Rank

Who’s using this:

26 artists using

DOD Envelope Filter 440 (2014) Filter Effects Pedals

DOD Envelope Filter 440 (2014)

$105.00 - $129.99

8 available stores

4.5 (16)

^# 10

in Filter Effects Pedals Rank

Who’s using this:

Clarence Clarity

8 artists using

DOD FX25 Envelope Filter Filter Effects Pedals

DOD FX25 Envelope Filter

$79.00

1 available store

5.0 (8)

^# 11

in Filter Effects Pedals Rank

Who’s using this:

James "Munky" Shaffer

13 artists using

Rocktron Banshee 2 Talk Box Filter Effects Pedals

Rocktron Banshee 2 Talk Box

$287.38 - $366.00

5 available stores

4.5 (12)

^# 12

in Filter Effects Pedals Rank

Who’s using this:

12 artists using

Mu-Tron Musitronics III Envelope Filter Filter Effects Pedals

Mu-Tron Musitronics III Envelope Filter

$750.00

1 available store

5.0 (16)

^# 13

in Filter Effects Pedals Rank

Who’s using this:

37 artists using

DOD FX25B Envelope Filter Filter Effects Pedals

DOD FX25B Envelope Filter

$69.00

1 available store

4.0 (25)

^# 14

in Filter Effects Pedals Rank

Who’s using this:

15 artists using

Death By Audio Evil Filter Filter Effects Pedals

Death By Audio Evil Filter

$372.00 - $435.00

7 available stores

5.0 (9)

^# 15

in Filter Effects Pedals Rank

Who’s using this:

Courtney Barnett

13 artists using

Electro-Harmonix Nano Q-Tron Filter Effects Pedals

Electro-Harmonix Nano Q-Tron

$93.00 - $111.70

9 available stores

4.5 (6)

^# 16

in Filter Effects Pedals Rank

Who’s using this:

Yoshimasa Terui

5 artists using

Source Audio Spectrum Intelligent Filter Filter Effects Pedals

Source Audio Spectrum Intelligent Filter

$212.00 - $219.00

5 available stores

5.0 (6)

^# 17

in Filter Effects Pedals Rank

Who’s using this:

Adam Devonshire

3 artists using

Rocktron Banshee Talk Box Filter Effects Pedals

Rocktron Banshee Talk Box

$80.00

1 available store

4.0 (29)

^# 18

in Filter Effects Pedals Rank

Who’s using this:

8 artists using

Electro-Harmonix Q-Tron Filter Effects Pedals

Electro-Harmonix Q-Tron

4.5 (17)

^# 19

in Filter Effects Pedals Rank

Who’s using this:

9 artists using

Electro-Harmonix Original Q-Tron Filter Effects Pedals

Electro-Harmonix Original Q-Tron

$239.00

1 available store

4.5 (11)

^# 20

in Filter Effects Pedals Rank

Who’s using this:

8 artists using

Moog Moogerfooger MF-105 MuRF Filter Effects Pedals

Moog Moogerfooger MF-105 MuRF

$550.00

1 available store

5.0 (7)

^# 21

in Filter Effects Pedals Rank

Who’s using this:

John Frusciante

15 artists using

Emma DiscomBOBulator Filter Effects Pedals

Emma DiscomBOBulator

5.0 (4)

^# 22

in Filter Effects Pedals Rank

Who’s using this:

6 artists using

Boss FT-2 Dynamic Filter Filter Effects Pedals

Boss FT-2 Dynamic Filter

$214.27

1 available store

4.5 (5)

^# 23

in Filter Effects Pedals Rank

Who’s using this:

10 artists using

Electro-Harmonix Nano Doctor Q Filter Effects Pedals

Electro-Harmonix Nano Doctor Q

$55.00 - $67.33

2 available stores

3.5 (31)

^# 24

in Filter Effects Pedals Rank

Who’s using this:

Larry "Ler" LaLonde

3 artists using

EarthQuaker Devices Interstellar Orbiter Filter Effects Pedals

EarthQuaker Devices Interstellar Orbiter

$190.89

1 available store

5.0 (5)

^# 25

in Filter Effects Pedals Rank

Who’s using this:

14 artists using

3Leaf Audio Proton Envelope Filter Filter Effects Pedals

3Leaf Audio Proton Envelope Filter

$264.60

1 available store

5.0 (5)

^# 26

in Filter Effects Pedals Rank

Who’s using this:

3 artists using

Keeley Neutrino Filter Effects Pedals

Keeley Neutrino

$179.00

2 available stores

4.5 (6)

^# 27

in Filter Effects Pedals Rank

Who’s using this:

2 artists using

HAZ Mu-Tron III+ Envelope Filter Filter Effects Pedals

HAZ Mu-Tron III+ Envelope Filter

$340.00

1 available store

5.0 (1)

^# 28

in Filter Effects Pedals Rank

Who’s using this:

6 artists using

Lovetone Meatball Filter Effects Pedals

Lovetone Meatball

$720.19

1 available store

5.0 (8)

^# 29

in Filter Effects Pedals Rank

Who’s using this:

64 artists using

DigiTech Talker Filter Effects Pedals

DigiTech Talker

$1,190.40

1 available store

4.5 (4)

^# 30

in Filter Effects Pedals Rank

Who’s using this:

12 artists using

Electro-Harmonix Iron Lung Filter Effects Pedals

Electro-Harmonix Iron Lung

$162.40

1 available store

5.0 (8)

^# 31

in Filter Effects Pedals Rank

Who’s using this:

2 artists using

DOD 440 Envelope Filter Filter Effects Pedals

DOD 440 Envelope Filter

$105.00 - $414.11

3 available stores

3.5 (11)

^# 32

in Filter Effects Pedals Rank

Who’s using this:

Jonny Greenwood

6 artists using

Ibanez Tone-Lok LF7 Lo-Fi Filter pedal Filter Effects Pedals

Ibanez Tone-Lok LF7 Lo-Fi Filter pedal

$145.00

1 available store

4.0 (9)

^# 33

in Filter Effects Pedals Rank

Who’s using this:

James "Munky" Shaffer

11 artists using

MXR MX-120 Envelope Filter Filter Effects Pedals

MXR MX-120 Envelope Filter

$100.00

1 available store

4.5 (4)

^# 34

in Filter Effects Pedals Rank

Who’s using this:

7 artists using

Behringer Meatball Filter Effects Pedals

Behringer Meatball

$95.00 - $119.00

3 available stores

5.0 (2)

^# 35

in Filter Effects Pedals Rank

Electro-Harmonix Riddle Filter Effects Pedals

Electro-Harmonix Riddle

$150.96

1 available store

4.5 (3)

^# 36

in Filter Effects Pedals Rank

Who’s using this:

Cristian Moraga

6 artists using

See also: Filter Effects Pedals, Guyatone, Guyatone Filter Effects Pedals

Community setups

Most Popular Filter Effects Pedals

Added to Equipboard on 03-14-2021 by

eyeseeofficial

Gear IQ 161522