Diamond Phase

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.

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 PSH-1—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.

An improved feedback circuit expands the range and character of the effect.

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.

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

Features

• Based on the original Diamond PSH-1 Phase (2008)
• Fully analog audio path
• Six selected and matched JFETs per pedal
• Selectable 2 / 4 / 6-stage phasing
• Improved feedback circuit
• Top-mounted jacks
• True bypass switching with momentary speed doubling
• 9–15V operation with internal 15V voltage pump
• Compact enclosure (approx. half the size of the original)