

The MXR Phase 45 is a vintage phaser pedal that offers subtle and musical phasing effects. It features a hand-wired circuit board built with original- spec 1975 components, hand-selected FETs matched to produce deep and rich phasing, and all-analog circuitry for warm analog tone.
Specifications:
- Input Impedance: 500 kΩ
- Output Impedance: 5 kΩ
- Max Input Level: -5 dBV
- Signal-to-Noise Ratio: >96 dB
- Phase Shift Range: 360°
- Bypass: Hardwire
- Current Draw: <1 mA
- Power Supply: 9-volt battery
The pedal can be powered by a 9-volt battery, a Dunlop ECB003 9-volt adapter, or the DC Brick™, Iso-Brick™, and Mini Iso-Brick™ power supplies (not included).
The controls include a footswitch to toggle the effect on/off and a Speed knob to regulate the overall effect rate. Rotating the Speed knob clockwise results in a faster phase effect, while counterclockwise results in a slower effect.
Use Cases:
- Texture your tone without overpowering your sound with the subtle and
musical phasing effects of the Phase 45.
- Suitable for musicians looking to add vintage phaser tones to their guitar
or bass performances.
The MXR Phase 45 is a faithful reissue of the original, offering a rare and classic phaser effect with authentic components and hardware.
Watch the latest video demos and reviews for the Phase 45 from YouTube. Stompbx updates this every six months to reflect the most popular reviewers and guitar pedal demos for each pedal.
Below are live Reverb listings for the MXR Phase 45 from Reverb. Stompbx automatically aggregates current offers to give you a quick look at available models, conditions, and prices. Perfect for comparing options and making an informed purchase.
Very Good
$169.99
Very Good
$275
Browse through eBay listings for the Phase 45 compiled in real-time. From vintage finds to brand-new units, see a variety of purchasing options. This automated collection helps you explore deals and find the right pedal at the right price.
New
$199.99
New
$149.99
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