Honoring a Classic. Writing the Next Chapter.

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  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.

PC  |  The companion software handles parameter editing, file management, firmware update and other operations. and GP-150 also works as a 6-in 4-out audio interface.
Mobile | GP-150 connects through BT and pairs with our advanced app for tone editing, wireless playback, patch management, and updates.

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)

1 – All claims require a purchase receipt. It is the customer's responsibility to present it when making a claim.

2 – Except as stated below, in-store sales are final and items purchased may not be returned. By completing their transaction, the customer acknowledges that they have taken the item(s) in optimal condition.

3 – Guitars, basses, pedals, amplifiers, accessories, and tubes are not returnable. By paying for the item, the customer acknowledges that: (i) they inspected it and found it to be in optimal aesthetic condition without defects; and (ii) they tested it and it was functioning properly.

4 – All claims due to defects are subject to the manufacturer’s terms and conditions.

5 – Guitars, basses, pedals, and amplifiers will have a 30-day warranty. The electronics of guitars and basses will have a 90-day warranty. Guitars Boutique, at its sole discretion, will decide whether to repair, replace parts or components (with identical ones), and/or replace the item with an identical one.

6 – At the store's discretion, defective items may be exchanged for an identical item SUBJECT to the defective item being in the same condition as when it was acquired, including its original packaging with all its accessories. This will be done as store credit only. The credit does not apply to special orders or lay-away.

7 – All merchandise leaving the store will be considered as used in the future.

8 – No refunds will be given, regardless of the person.

9 – Special, clearance, or discounted items are not returnable.

Puerto Rico only.

In case of a return, the shipping cost will be deducted from the refund.

Guitars Boutique ships to PR via federal mail USPS, UVA, and iWide.

Estimated delivery time once the order has been shipped:

• Lightweight items, less than 14 pounds are shipped via USPS.
• Heavier items are shipped via iWide and UVA.
• No shipments are made on Sundays.

Guitars Boutique is not responsible for delays caused by shipping companies.

• The buyer is responsible for the care of their instrument/equipment against changes in temperature, humidity, and unstable current.
  All guitars, basses, pedals, and amplifiers will have a 30-day warranty.
• The electronics of guitars and basses will have an extended warranty of 90 days.
• Suppliers, who generally reserve the right to decide whether to repair, replace parts or components (with identical ones), and/or substitute the item with an identical one, at their sole discretion.
• Exchanges, if warranted (at the store's discretion) and if the product is in optimal condition (including its packaging), are for store credit only.
• Credits do not apply to special orders or lay-away.