Pricing and availability

We compare 600+ stores and found this item at 2 stores. Prices updated .

Average Price: $337

High-end/Boutique

$60

$176+

Price Tier

Budget

Standard

High-end

Price History

Based on price data from 1 merchant for "ISP Technologies THETA Pedal". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

* 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

Unleash the beast within your guitar rig with the ISP Technologies THETA Pedal, a marvel of engineering that brings the ferocity of the acclaimed THETA amplifier right to your pedalboard. This isn't just another high-gain pedal; it's a sonic powerhouse, designed to catapult your tone into the realm of the extraordinary. With an unparalleled over 160dB of gain available when combining its Pre-distort Preamplifier and High Gain Distortion stages, the THETA Pedal is in a league of its own. Whether you're sculpting your clean tone with the Pre-distort Preamplifier's 3-band EQ or pushing the limits with the High Gain Distortion stage, this pedal offers versatility and power in abundance. Its internal +/-15-volt power supply triples the headroom compared to standard 9-volt pedals, ensuring your tone remains dynamic, punchy, and full of character, even when drenched in gain.

Experience noise-free operation thanks to the pedal's Decimator G-string II circuit, an innovative noise-reduction system that eliminates unwanted noise without sacrificing tone. The result? Aggressive sustain, punchy impact, and tonal tenacity that maintains clarity and nuance, making the ISP Technologies THETA Pedal a true standout in the world of guitar effects.

Key Features:

  • Over 160dB of gain for aggressive tone and sustain
  • Pre-distort Preamplifier stage with 3-band EQ for versatile tone shaping
  • High Gain Distortion stage for earth-shattering distortion and sustain
  • Both stages can be used together for maximum gain
  • Independent 3-band EQs with sweepable mids for each gain stage
  • Decimator G-string II circuit for over 80dB of noise reduction
  • Internal +/-15-volt power supply for increased headroom and dynamic tones

Product specs

Type Guitar Preamp and Distortion
EQ 2 x 3-band EQ, 2 x sweep
Controls Demicator
Inputs 1 x 1/4"
Outputs 1 x 1/4"
Other I/O 2 x 1/4" TRS (G1/G1, Pre/Dist)
Power Source 9V AC power supply (included)
Height 1.9"
Width 7"
Depth 5"
Weight 2.2 lbs.

FAQs

What type of power supply does the ISP Technologies THETA Pedal require?

The ISP Technologies THETA Pedal requires a 9V AC power supply, which is included with the pedal.

Does the ISP THETA Pedal include noise reduction features?

Yes, the ISP THETA Pedal features a Decimator noise reduction control, which helps minimize unwanted noise and hum during performance.

Can the ISP Technologies THETA Pedal be used as a standalone preamp?

Yes, the ISP Technologies THETA Pedal functions as a standalone preamp with comprehensive EQ controls, making it versatile for various tonal adjustments.

What kind of EQ controls are available on the ISP THETA Pedal?

The ISP THETA Pedal features two 3-band EQs with sweepable mids, allowing for precise tonal shaping of both clean and distorted sounds.

Is the ISP Technologies THETA Pedal suitable for live performances?

Yes, with its preamp capabilities, noise reduction, and robust EQ options, the ISP Technologies THETA Pedal is well-suited for live performances, providing clear and controlled sound.

Sweetwater

Sweetwater

ISP Technologies Theta Guitar Preamp Pedal Demo - Sweetwater Sound

Video thumbnail for ISP Technologies Theta Guitar Preamp Pedal Demo - Sweetwater Sound by Sweetwater

ISP Technologies Theta Guitar Preamp Pedal Demo - Sweetwater Sound

Sweetwater

Sweetwater

Video thumbnail for ISP Technologies Theta Preamp Pedal Demo at GearFest '13 - Sweetwater Sound by Sweetwater

ISP Technologies Theta Preamp Pedal Demo at GearFest '13 - Sweetwater Sound

Sweetwater

Sweetwater

Video thumbnail for ISP TECHNOLOGIES THETA PREAMPLIFIER by Andy Baylor

ISP TECHNOLOGIES THETA PREAMPLIFIER

Andy Baylor

Andy Baylor

Video thumbnail for ISP THETA Pre Amp Pedal and Stealth Power Amp wmv by ISP Technologies

ISP THETA Pre Amp Pedal and Stealth Power Amp wmv

ISP Technologies

ISP Technologies

Video thumbnail for ISP THETA Pedal Demonstration - Bass Guitar by New Anomaly Productions

ISP THETA Pedal Demonstration - Bass Guitar

New Anomaly Productions

New Anomaly Productions

Reviews

PROS

  • Emulates high gain tones from Fender cleans to Mesa Rectifier

  • Offers both distortion and preamp options in one pedal

  • Made in the USA, emphasizing quality and local production

  • Versatile for various genres, excels in metal and 80s rock

  • Built-in overdrive option by cascading preamp into distortion

  • Smooth transition between two gain stages for nuanced tone shaping

  • Effective mid scoop for crisp, articulate sounds

  • Can polish lower quality amps, enhancing overall sound

  • Includes a high-quality noise gate circuit (Decimator G String-II)

  • Robust construction with bright, easily visible LEDs

CONS

  • Switching between distortion and clean preamp channels can be cumbersome

4.5 out of 5

Based on 1 Review and 3 Ratings

5 star
4 star
3 star
2 star
1 star
boom762
boom762

12239

Dual channel Gain, built in Decimator G String-II noise gate, and decent EQ in one pedal

It's a great little stomp box. Built very well, the LEDs are amazingly bright, and it looks cool.

I mainly bought this for the Decimator G String-II circuit. Those by themselves are $100 less than this entire pedal so I figured I would grab the extra features. If you are looking for a distortion box with an EQ or just a small Noise Gate, look no further. The ISP BETA is the bass version of this pedal and even has a built in ISP signature compression.

More ISP Technologies Switch Effects Pedals

Accessories & Related Items

Artist usage

Community setups

Similar

Gear Guides

  • Added to Equipboard on by

    boom762
    boom762

    Gear IQ 12239