Joyo JF-328 Nebulous Phase – Guitar Effect

Guitarists often struggle to achieve a rich, swirling phase effect without sacrificing pedalboard space or signal integrity. The JOYO JF-328 Nebulous Phase solves this by packing a high-quality analog phaser into an ultra-compact, true bypass enclosure. Its single Speed knob lets you dial in everything from slow, lush sweeps to fast, watery warbles, making it perfect for adding movement and depth to your tone.

Who is it for

This pedal is ideal for electric guitar and bass players who want a classic phaser sound in a minimal footprint. Whether you play rock, funk, psychedelic, or ambient music, the Nebulous Phase delivers the modulation you need without cluttering your board. It's also a great choice for musicians who value simplicity and reliability in their effects chain.

Main features

• Analog phaser circuit for warm, organic modulation
• True bypass switching preserves your dry signal when the effect is off
• Single Speed control for easy, intuitive operation
• Ultra-compact Ironman series design fits on any pedalboard
• Durable aluminum alloy housing with reverse polarity protection
• LED indicator shows effect on/off status at a glance

Specifications

• Effect Type: Phaser
• Bypass Type: True Bypass
• Controls: Speed
• Input Impedance: 470 kOhm
• Output Impedance: 10 kOhm
• Power Supply: DC 9V (Center Negative)
• Current Draw: 10 mA
• Housing Material: Aluminum Alloy
• Input Connector: 1/4" Mono Jack
• Output Connector: 1/4" Mono Jack
• Indicator: LED (Effect On/Off)
• Circuitry: Analog
• Series: Joyo Ironman / Mini Series
• Power Supply Included: No
• Special Features: Ultra-compact design, single knob operation
• Signal Path: Mono
• Protection: Reverse Polarity Protection

Tips

Experiment with the Speed knob in conjunction with your guitar's volume control to create dynamic, touch-sensitive phasing effects. For a subtle, always-on thickening, set the Speed low and place the pedal before your overdrive or distortion.