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Phaser · PastFX

PastFX Rotary Phaser

The PastFX Rotary Phaser is an analog phaser pedal featuring photo-coupler circuitry inspired by the Maxon PH-350 design. It offers selectable stage counts from 4 to 10 stages and stereo outputs for expanded tonal possibilities.

  • 9V DC · center −
  • 45 mA
  • True bypass
  • Analog
  • Stereo
New
from $256
Used (asking)
No listings yet

The rundown

Highlights

  • Four stage options (4/6/8/10) for varying phasing intensity
  • Triangle and square waveform selections
  • Stereo output capability
  • True bypass switching
  • Compact footprint at 59.9 x 100.1 mm

Best for

Guitarists and bassists seeking a compact phaser with flexible stage options and stereo output capabilities.

Quick facts

Power
9V DC
Current draw
45 mA
Polarity
Center negative
Bypass
True bypass
Dimensions
59.9 × 100.1 mm
Controls
Speed, Depth, Feedback, Mode (4/6/8/10 Stages), Waveform (Triangle/Square), Bias
Stereo
Yes
Status
In production

Where to buy PastFX Rotary Phaser

$256 lowest new price · Reverb

Current offers
SellerConditionPriceLink
ReverbNew$256View

Prices last checked 22 hours ago. Links to sellers are affiliate links.

Frequently asked questions

What power supply does the PastFX Rotary Phaser require?

The PastFX Rotary Phaser runs on a 9V DC center-negative supply with 45 mA current draw.

Does the PastFX Rotary Phaser have stereo outputs?

Yes, the PastFX Rotary Phaser features stereo outputs.

How many stages can the PastFX Rotary Phaser produce?

The PastFX Rotary Phaser offers four selectable stage options: 4, 6, 8, or 10 stages.

What waveform options does the PastFX Rotary Phaser have?

The PastFX Rotary Phaser provides triangle and square waveform selections.

Similar pedals

Same type, similar features.

Specs from pedalfilter. Summary written by PedalBro from those specs and public descriptions.

Page last updated September 29, 2026.