Big sounds in a small box

The GP‑150 keeps the compact form factor, but under the hood it’s been supercharged. You can now run up to 12 effect modules and place them in any order you fancy. With more than 200 top‑shelf FX powered by Valeton’s second‑gen HD modelling tech, plus an upgraded 48kHz algorithm sampling rate for pristine sound quality, this thing is built to deliver big, detailed tones.

Total control at your feet

Need control? You’ve got loads. Manipulate up to 6 modules at once, tap your tempos and shape sounds quickly with an array of dedicated buttons and knobs. The GP‑150 also supports SnapTone and full cabinet IR loading, letting you import up to 20 third‑party IRs. And thanks to Valeton’s latest SnapTone tech, you can convert and load NAM (Neural Amp Modeller) files directly into the unit. It even comes stocked with 50 premium files to get you off the line, with space to store up to 100 SnapTones in total.

Hardware that means business

Hardware‑wise, it’s got the classic dual‑footswitch and built‑in pedal combo you’d expect — plus a bright, clear 2.4" HD colour LCD screen that makes patch editing easy. If you’re after deeper control, it supports expression pedals, external switches and even MIDI. And with a built‑in 3,000 mAh battery delivering over six hours of runtime, with charging via USB‑C or a DC port, you won’t be hunting for a power socket at your next rehearsal or gig.

Modern connectivity

There’s onboard Bluetooth for wireless editing via Valeton's mobile app, plus a super handy TRRS headphone output that’s perfect for live streamers, content creators and anyone teaching or recording online.

Power Requirements

This unit does not include a power supply. It requires a 9V DC centre-negative PSU for operation.
For charging the internal battery, a higher current PSU (approx. 2A recommended) or USB-C power source is required.
Lower current power supplies (e.g. 1A) may power the unit but will not charge the battery.

FEATURES

• 200+ built-in effects: Access a massive library of premium effects powered by second-gen HD modelling technology.
• Third-party IR support: Import and store up to 20 of your favourite cabinet impulse responses.
• Advanced amp modelling: Explore a wide range of high-quality amp tones, with support for modern profiling-style sounds.
• 200 preset slots: Save all your best tones, with 100 factory presets to inspire your creativity from day one.
• Up to 12 simultaneous modules: Build complex signal chains with flexible, user-adjustable routing.
• Knob & button controls: Make quick, intuitive adjustments directly from the pedal — perfect for live use.
• Newly designed user interface: A clear, streamlined layout that puts all functions and settings at your fingertips.
• Onboard tuner: Accurate and responsive, with cent display and multiple tuning templates.
• Drum machine function: Jam along with 100+ rhythm patterns to sharpen your timing and fuel new ideas.
• Looper function: Create layered performances with up to 180 seconds of recording time.
• Expression pedal & footswitch ready: Expand your control with external expression pedals and footswitches.
• Stereo outputs: Supports balanced and unbalanced stereo output for stage or studio use.
• 3.5 mm TRRS headphone output: Plug in and monitor silently with full stereo sound.
• USB audio interface: 6-in / 4-out interface for direct recording on Windows, macOS, iOS and Android.
• Comprehensive MIDI support: USB, Bluetooth and 6.35 mm TRS MIDI for flexible external control and automation.
• Bluetooth app support: Connect wirelessly to the iOS/Android app for editing, tone management and access to drum patterns.
• Companion software: Easy file management and firmware updates on Windows and macOS.
• Road-ready design: Rugged, compact metal construction built to withstand touring.
• Flexible power options: Powered via 9V DC or 5V USB (PSU not included).
• Built-in rechargeable battery: Up to 6 hours of play time for true portability.

SPECIFICATIONS

• Sampling Precision: 24-bit
• Sampling Rate: 48 kHz
• SNR (Signal-to-Noise Ratio): 110 dB
• Module: 12 modules can be used simultaneously
• Patch Memory: 200 patch slots, 100 factory patches
• Bluetooth Wireless: 5.0 Dual-Mode (BLE & audio)

Analog Input Connections

• Input: 1/4" unbalanced (TS)
• EXP/FS: 1/4" (TRS)

Analog Output Connections

• Output (L): 1/4" unbalanced (TS)
• Output (R): 1/4" balanced (TRS)
• Phones/Mic Output: 1/8" stereo (TRRS)

Digital Connections

• USB Port: USB 2.0 Type-C
• MIDI In: 1/4″ (TRS), compatible with EXP/FS jack

Size & Weight

• Dimensions (W x D x H): 200 x 139 x 55 mm
• Weight: 958 g

Battery

• Capacity: 3,000 mAh
• Charging: Both the DC 9V and USB ports support charging

DC Power Requirements

• DC 9V centre negative (5.5 x 2.1 mm plug)
• ≥1.5A (Min. operating current: 1A; Max. supply current: 2A)
• PSU Not Included

USB-C Power Requirements

• Type-C, DC 5V
• ≥1A (Min. operating current: 1A; PD fast-charging current: 3A; Reverse charging current: 1A)

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