Pricing and availability
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Average Price: $337
High-end/Boutique
$60
$176+
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Based on price data from 1 merchant for "ISP Technologies THETA Pedal". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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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
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What type of power supply does the ISP Technologies THETA Pedal require?
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The ISP Technologies THETA Pedal requires a 9V AC power supply, which is included with the pedal.
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Does the ISP THETA Pedal include noise reduction features?
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Yes, the ISP THETA Pedal features a Decimator noise reduction control, which helps minimize unwanted noise and hum during performance.
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Can the ISP Technologies THETA Pedal be used as a standalone preamp?
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Yes, the ISP Technologies THETA Pedal functions as a standalone preamp with comprehensive EQ controls, making it versatile for various tonal adjustments.
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What kind of EQ controls are available on the ISP THETA Pedal?
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The ISP THETA Pedal features two 3-band EQs with sweepable mids, allowing for precise tonal shaping of both clean and distorted sounds.
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Is the ISP Technologies THETA Pedal suitable for live performances?
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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.
Videos
Sweetwater
ISP Technologies Theta Guitar Preamp Pedal Demo - Sweetwater Sound
Reviews
PROS
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Emulates high gain tones from Fender cleans to Mesa Rectifier
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Offers both distortion and preamp options in one pedal
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Made in the USA, emphasizing quality and local production
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Versatile for various genres, excels in metal and 80s rock
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Built-in overdrive option by cascading preamp into distortion
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Smooth transition between two gain stages for nuanced tone shaping
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Effective mid scoop for crisp, articulate sounds
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Can polish lower quality amps, enhancing overall sound
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Includes a high-quality noise gate circuit (Decimator G String-II)
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Robust construction with bright, easily visible LEDs
CONS
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Switching between distortion and clean preamp channels can be cumbersome
4.5 out of 5
Based on 1 Review and 3 Ratings
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.
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