Early Black Friday Deals & DoorbustersEnds Nov. 8.Shop now

Skip to contentGo to Product Search
Main Content

Vertex Effects - Ultraphonix MKII Overdrive Guitar Effects Pedal All-Analog True Bypass 9VDC D-Style Tone

Model: ULTRAPHONIXMKII
SKU: 11121122

Reviews coming soon

Sold & shipped by

About this product

The Ultraphonix Special Overdrive MKII is a premium “amp-in-a-box” guitar effects pedal engineered for players seeking the legendary touch sensitivity, blooming mids, and harmonically rich overdrive associated with ultra-rare American boutique amplifiers, delivering an expressive, full-bodied tone that responds dynamically to your playing style. Meticulously developed over four years and voiced against multiple original reference amplifiers from the 1970s through the 1990s, this pedal authentically captures the elusive D-style character with cascading gain stages, articulate attack, and smooth, singing sustain ideal for everything from blues and jazz to fusion and classic rock. Designed with 100% analog circuitry, the Ultraphonix MKII preserves your instrument’s natural feel while enhancing note clarity, bloom, and harmonic complexity, allowing every nuance of your playing to shine through. True bypass mechanical switching ensures your signal remains pure when the pedal is disengaged, while standard 9VDC center-negative power compatibility makes it easy to integrate into any pedalboard setup. Whether you’re chasing the refined tones of iconic players or looking to elevate your rig with boutique-inspired overdrive without the six-figure price tag, the Ultraphonix Special Overdrive MKII delivers professional-grade performance, studio-quality tone, and inspiring responsiveness for serious guitarists and tone enthusiasts alike.

Features

  • Authentic D-Style Amp Tone Recreation

    Capture the sought-after character of rare American boutique amplifiers with expansive midrange, smooth sustain, and cascading gain stages, delivering expressive overdrive tones suited for blues, jazz, fusion, and rock players.

  • Voiced Using Original Reference Amplifiers

    Developed over four years and compared against multiple original amplifiers from the 1970s–1990s, ensuring accurate tonal response and feel inspired by highly customized, player-specific amp designs.

  • Rich Harmonics with Dynamic Note Bloom

    Experience enhanced harmonic overtones and natural note bloom that respond to your playing dynamics, giving your guitar tone added depth, clarity, and musical expression across a wide range of styles.

  • Pure Analog Signal Path Performance

    Built with 100% analog circuitry to preserve your guitar’s natural tone and responsiveness, delivering consistent sound quality without digital processing or unwanted coloration.

  • Pedalboard-Friendly with True Bypass Design

    Features mechanical true bypass switching for a clean signal when disengaged and operates on standard 9VDC center-negative power, making it easy to integrate into most pedalboard setups.

Specifications

  • Brand
    Vertex Effects
    Model Number
    ULTRAPHONIXMKII
    Product Name
    Ultraphonix MKII Overdrive Guitar Effects Pedal All-Analog True Bypass 9VDC D-Style Tone
    Product Width
    2.5 inches
    Product Height
    2.75 inches
    Product Length
    5.25 inches
Sponsored

Reviews

This product doesn't have any reviews yet.

Compare similar products

Vertex Effects - Ultraphonix MKII Overdrive Guitar Effects Pedal All-Analog True Bypass 9VDC D-Style Tone
Vertex Effects - Ultraphonix MKII Overdrive Guitar Effects Pedal All-Analog True Bypass 9VDC D-Style Tone

The Ultraphonix Special Overdrive MKII is a premium “amp-in-a-box” guitar effects pedal engineered for players seeking the legendary touch sensitivity, blooming mids, and harmonically rich overdrive associated with ultra-rare American boutique amplifiers, delivering an expressive, full-bodied tone that responds dynamically to your playing style. Meticulously developed over four years and voiced against multiple original reference amplifiers from the 1970s through the 1990s, this pedal authentically captures the elusive D-style character with cascading gain stages, articulate attack, and smooth, singing sustain ideal for everything from blues and jazz to fusion and classic rock. Designed with 100% analog circuitry, the Ultraphonix MKII preserves your instrument’s natural feel while enhancing note clarity, bloom, and harmonic complexity, allowing every nuance of your playing to shine through. True bypass mechanical switching ensures your signal remains pure when the pedal is disengaged, while standard 9VDC center-negative power compatibility makes it easy to integrate into any pedalboard setup. Whether you’re chasing the refined tones of iconic players or looking to elevate your rig with boutique-inspired overdrive without the six-figure price tag, the Ultraphonix Special Overdrive MKII delivers professional-grade performance, studio-quality tone, and inspiring responsiveness for serious guitarists and tone enthusiasts alike.

Electro-Harmonix - 22500 Dual Stereo Looper Pedal with SD Card Recording, Drum Loops, MIDI Control and Parallel Looping

The Electro-Harmonix 22500 Dual Stereo Looper Pedal is designed for musicians seeking advanced looping capabilities with flexible performance control. Featuring dual stereo loops, it allows users to record and play loops independently or simultaneously, enabling complex arrangements and layered compositions. With high-quality, uncompressed audio recording directly to an SD card, it supports extended recording sessions and convenient storage of multiple loops. Built-in drum loops and adjustable tempo controls enhance creative possibilities, while features like undo and redo, reverse playback, and programmable loop functions provide intuitive control during performances. The pedal also includes MIDI compatibility and USB connectivity for seamless integration with external devices and computers. With its versatile design and extensive feature set, it is ideal for both live and studio applications.

Vertex Effects - Steel String Mini (Slight Return Edition) Guitar Pedal SRV-Inspired Clean Boost & Overdrive with True Bypass

The Steel String Mini (Slight Return Edition) Guitar Pedal delivers expressive, D-style clean tones and smooth overdrive in a compact, pedalboard-friendly format inspired by the legendary Steel String Singer amplifier. Modeled after the original #001 unit, this pedal captures the sought-after character associated with iconic blues and rock tones, offering glassy cleans, warm midrange presence, and dynamic response that reacts naturally to your playing. At lower gain settings, it functions as a versatile clean boost with an active midrange Filter control to fine-tune your tone, while higher gain levels introduce rich, touch-sensitive overdrive with enhanced sustain and harmonic detail. The integrated Rock/Jazz switch expands tonal flexibility by shaping low-end response and midrange character, allowing you to dial in everything from tight, articulate cleans to fuller, more saturated lead tones. Designed for ease of use and tonal consistency, it features intuitive Gain and Level controls, true bypass switching to preserve your signal when disengaged, and flexible 9–18VDC operation for integration into a variety of setups. Housed in a rugged steel enclosure with a compact footprint, the Steel String Mini is an ideal choice for players seeking boutique-inspired clean drive, responsive feel, and versatile tone shaping for both live performance and studio use.

Vertex Effects - Boost MKII Guitar Pedal +16dB Clean Gain Booster with Input/Output Buffers and External Volume Control

The Boost MKII Guitar Pedal is a versatile, performance-driven solution designed to elevate your entire guitar rig with ultra-transparent gain and professional-grade signal optimization. Offering up to +16dB of clean boost, this multifunction pedal can be placed before your amp or drive pedals to enhance saturation and sustain, or after your signal chain to deliver a powerful, full-range volume lift for solos without altering your core tone. Built with ultra-linear input and output buffers, it conditions your signal path for improved clarity, reduced noise, and consistent performance, even across complex pedalboards or long cable runs, while maintaining zero tonal coloration. Compatible with both instrument- and line-level signals, the Boost MKII adapts seamlessly to a wide range of setups, ensuring your pickups and gear retain their natural character. An integrated 1/8-inch TRS insert jack allows connection to an external treadle-style volume or expression pedal, giving you precise, real-time control over your output level while keeping your guitar signal fully isolated. Housed in a compact enclosure that is slimmer than its predecessor, this pedal is an efficient addition to any pedalboard, making it an ideal choice for players seeking clean boost performance, enhanced signal integrity, and expanded control in both live and studio environments.

Specs

Be the first to ask a question.

We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.

No content
Sponsored