Honoring a Classic. Writing the Next Chapter.
Multi-Effects Processor
Since its launch, the GP-100 has earned praise from players all around the world and became a benchmark for Valeton across every user level. Today, we carry that legacy forward with the new GP-150, our next-generation digital multi-effects processor. This is not a minor refresh. It is a complete evolution. From design to sound processing to workflow, you can feel how new technology elevates the classic GP form into something far more powerful. GP-150 invites you to join us again and explore a new era of tone creation.
Next-Level Modeling.
A New Voice for a New Generation.
GP-150 is powered entirely by Valeton’s second-generation HD digital modeling technology. Built-in 200+ premium effects based on the new architecture, supported by an upgraded 48 kHz sample rate and redesigned cabinet simulation for higher clarity and realism. To push even further, GP-150 supports Valeton’s latest SnapTone technology, allowing NAM file conversion and loading. It also supports third-party IRs with 1024 and 2048 sample points. The unit stores up to 100 SnapTone files with 50 curated selections included, plus 20 third-party IR slots. With all this tech working together, GP-150 raises the standard for tone quality in its price category.
Classic Form. Modern Innovation.
As an evolutionary design, GP-150 keeps the iconic dual footswitch form with expression pedal,but modern upgrades stand out immediately. It features a dedicated power switch and a built-in 3000 mAh battery that provides over six hours of runtime (screen brightness level II), with charging supported through Type-C or DC port.
2.4-inch HD Color LCD Display
The screen has been upgraded to a 2.4-inch HD color LCD for clearer navigation.
Dedicated Volume Knob
We added a dedicated master volume knob, color-changing footswitch rings, and multiple status indicators for instant feedback. The right output uses a TRS balanced connection.
Expansion Ports
Expansion ports allow expression pedals, external switches, and MIDI control. With a stronger hardware foundation, GP-150 is built to become the next timeless classic.
A New Core. A Cleaner,
Faster Experience.
If the exterior pays respect to tradition, the interior is a leap into the future. GP-150 features a completely redesigned operating system with intuitive drag-and-drop routing and deeper control of every parameter. You can load up to 12 effects modules and arrange them in any order. Patch capacity has increased to 200, with 100 factory patches included. The looper now records up to 180 seconds, and the drum machine features more than 100 HD patterns. Every upgrade inside GP-150 serves one purpose: giving you a smooth and effortless creative workflow.
More Control. More Possibilities.
Compared to the GP-100, GP-150 delivers a major jump in control and expandability.
The redesigned interface, additional knobs, and new control buttons allow full operation directly from the unit. With just two footswitches, you can toggle up to six effect modules and access tap tempo and sync functions.
MIDI control is supported through USB, BT, and 6.35 mm TRS. No matter how ambitious your setup is, GP-150 adapts with ease.
Built Around Your Needs.
Designed for Real Musicians.
Valeton has always focused on real-world user experience, and GP-150 reflects that commitment. Factory patches are reorganized and optimized for practical use, letting you instantly access iconic tones from artists, genres, and classic tracks without building patches from scratch. The headphone jack supports 3.5 mm TRRS headsets for streamers and online teachers who need clear communication.
The tuner now includes cent display and multiple tuning templates that cover most alternate tunings. The USB port supports PD fast charging and reverse power to keep you prepared during travel. All these thoughtful details show just how closely we listen to our players.
Products Comparison Table
Application Scenarios
01. With full-range speaker devices
02. With guitar amps (INPUT jack)
03. With guitar amps (using FX Loop)
04. With guitar amps (using FX Loop to pre-position the GP-150)
05. With External Control Devices
06. Audio Studio (for livestreaming)
FEATURES
✪ Dual footswitches + expression pedal-style digital multi-effects processor
✪ Built-in over 200 premium effects based on second-generation HD modeling technology
✪ Supports loading third-party cabinet IR files, 1024/2048 sampling points, with a maximum storage of 20 files
✪ Latest SnapTone technology supports NAM (Neural Amp Modeler) file conversion
✪ SnapTone module comes with 50 curated files, with a maximum storage of 100 files
✪ 200 patch slots (100 factory patches)
✪ Up to 12 modules can be used simultaneously in the effects chain, with full module
order flexibility
✪ Knob + button controls for convenient interaction
✪ Newly designed interactive interface covering all functions
✪ Accurate and responsive tuner with cent display and multiple tuning templates
✪ Supports drum machine function with over 100 built-in drum patterns
✪ Supports Looper with up to 180 seconds of recording time
✪ Compatible with expression pedal and external footswitches
✪ Supports stereo balanced/unbalanced output
✪ 3.5mm TRRS headset output
✪ 6-in/4-out audio interface functionality, compatible with Win/Mac/iOS/Android
✪ Supports USB/BT/6.35mm TRS MIDI control
✪ Supports BT wireless audio input and recording via built-in audio interface
✪ Supports BT wireless connection to smartphones for use with iOS/Android companion editing apps; apps include 100 drum machine rhythms
✪ User-friendly Win/Mac companion software for file management and firmware updates
✪ Compact and rugged metal chassis
✪ Supports built-in battery power with a battery life of over 6 hours (screen brightness level II)
✪ Powered/charged via 9V DC or 5V USB
✪ Supports USB fast charging and reverse power supply
SPECIFICATIONS
Sampling Precision: 24-bit
Sampling Rate: 48kHz
SNR: 110dB
Module: 12 modules can be used simultaneously
Patch Memory: 200 Patch slots, 100 Factory Patches
BT Wireless: 5.0 Dual-Mode (BLE & audio)
Analog Input Connection
IN: 1/4" (6.35mm) TS jack, 1M Ohms
EXP/FS: 1/4" (6.35mm) TRS jack
Analog Output Connection
OUT (L): 1/4" (6.35mm) TS jack, 1k Ohms
OUT (R): 1/4" (6.35mm) TRS jack, 1k Ohms
PHONES/MIC: 1/8" (3.5mm) TRRS jack, 22 Ohms
Digital Connection
USB Port: USB 2.0 Type-C Port
MIDI IN: 1/4" (6.35mm) TRS jack, compatible with EXP/FS jack
Size and Weight
Dimensions: 200mm (W)× 139mm (D) × 55mm (H)
Unit Weight: 958g
Battery
Capacity: 3000mAh/3.7V
Charging: Both the DC 9V and USB ports support charging
Power
DC Power Requirements: DC 9V (center negative), 5.5×2.1mm plug
≥1.5A (Min. operating current: 1A; Charging current : 2A)
USB-C Power Requirements: Type-C, DC 5V
≥1A (Min. operating current: 1A; PD fast-charging current: 3A; Reverse charging current:1A)