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Made in Canada - Free Canada/US shipping on orders over $150USD/$200CAD - No Tariffs

Phase

Regular price$249.00 Sale price

The Diamond Phase is a modern revival of the original Diamond PSH-1 Phase first introduced in 2008—faithfully re-engineered to preserve its unmistakable analog character while meeting the needs of today’s pedalboards.

At its core, the Diamond Phase remains true to the original design, featuring a fully analog audio path built around six carefully selected and matched JFET transistors in every pedal. This approach delivers exceptionally smooth, musical phase shifting with depth, warmth, and clarity that never feels artificial or over-processed.

From barely-there movement to classic swirl and deep, colourful modulation, the Diamond Phase captures the full history of phasing—refined, compact, and unmistakably Diamond.

2/4/6 Stages

A selectable 2-, 4-, or 6-stage architecture gives you three distinct phaser voices in a single pedal:

  • 2-Stage Mode offers light modulation and subtle movement, perfect for gentle motion, tone enhancement, and always-on textures that add feel without drawing attention.
  • 4-Stage Mode delivers classic, traditional phasing—a sound not previously available in the Diamond phaser—with the familiar, balanced sweep heard on countless iconic recordings.
  • 6-Stage Mode provides a throatier, more colorful response, with deeper notches and increased harmonic complexity for bold, expressive, and psychedelic sounds.

JFET Phaser Technology

The Diamond Phase uses a classic JFET-based phaser topology, where each stage is built around a voltage-controlled JFET acting as a variable resistor. As the modulation signal changes, these JFETs shift the phase of the audio signal in a smooth, continuous way. By carefully selecting and matching JFETs, the phase response remains even and musical across all stage modes, avoiding abrupt transitions or uneven sweeps. This approach is responsible for the warm, organic movement and natural feel that define classic analog phasing.

Made For Today

Designed for modern pedalboards, the Diamond Phase features top-mounted jacks and true bypass switching, and is housed in an enclosure that is approximately half the size of the original PSH-1, making it far easier to fit into contemporary setups.

Power is simple and pedalboard-friendly: the Diamond Phase runs on 9–15V standard pedal power and includes an internal voltage pump that boosts the circuit to 15V operation, ensuring clean, consistent performance with no fancy power supplies required.

 

Input Impedance: > 1MΩ

Output Impedance: < 10KΩ

Switching: Relay True Bypass

Speed Range: 0.1Hz - 10Hz

Power Requirement: 9-15 VDC , negative tip, 2.1 mm barrel jack. 

Current Draw @ 9 VDC : 80mA

Dimensions: 122 x 66.98 x 39.64 mm (4.8 x 2.64 x 1.58")

Weight: 300 g

Made In Canada 

 

All Diamond products purchased through the diamondpedals.com website or our authorized dealers come with a three-year warranty against failure resulting from defective parts and/or faulty workmanship. Cosmetic flaws or issues related to wear and tear are not covered.

The warranty applies only to the original owner of the product and is not transferable. Warranty coverage terminates three years after the owner receives the product. While a product is under warranty, the product will be repaired free of charge. The owner of the product will be responsible for both shipping to and from Diamond Pedals. Warranty coverage will be automatically canceled should the product be tampered with, modified, abused, damaged through misuse, repaired by an unauthorized third party, or damaged through failure to follow the operating instructions.

USE OF AN IMPROPER POWER SUPPLY WILL VOID THE WARRANTY