
Anthony Easton
The PT-9 Pro+ by Maxon is an optical phase shifter pedal designed to deliver a wet, drippy, and 3-dimensional phasing sound reminiscent of vintage units such as the Mu-Tron Phaser II and the Shin-Ei Uni-Vibe. It features 18-volt operation for increased headroom and wider frequency response, making it suitable for use pre- or post-distortion, in an FX loop, or in the front-end of an amp. The pedal is equipped with a Rate LED that displays oscillator speed and offers true bypass switching.
Technical Specifications:
- Input Impedance: 500K Ohms
- Output Impedance: 10K Ohms or less
- Maximum Output Level: +18 dBu (1 KHz)
- Controls: SPEED (0.055 to 8.3 Hz), FEEDBACK, WIDTH
- Residual Noise: 95 dBu (input shorted, IHF-A weighted)
- Internal Circuit Voltage: Stabilized +/-9V DC-DC converter
- Power Supply: 9V Manganese dry cell battery (6F22) or special AC adaptor
- Power Voltage: DC9 V (Battery) / DC10 V (AC-adaptor)
- Current Consumption: 32 mA (9 V) / 30 mA (10 V) at 18 volts
- Battery Life: Approximately 3 hours @ 77°F / 25°C (Panasonic NEO battery
6F22NB), Approximately 8.4 hours @ 77°F / 25°C (Panasonic Alkaline battery
6LF61G)
- AC Adaptor: AC210N (option) Input: AC120V Output: DC9V/200 mA Center - /
Sleeve +
- Dimensions: 74 mm (W) x 124 mm (D) x 54 mm (H)
- Weight: 580 g
- Accessories: 9V Manganese dry cell battery (S-006P) x 1, Warranty Card x 1,
User's Manual x 1
The PT-9 Pro+ utilizes a NJM2374A voltage conversion chip to increase the headroom of the Op Amps and clean up the phase sweep. It also features Mechanical True Bypass switching via a Fujisoku 4PDT switch, with the input switched to ground when bypassed.
When using a power brick, it should be connected to a high current power jack if possible. If not, the pedal can be powered by leaving a battery in the pedal and following a specific startup procedure.
It's important to verify the information with the manufacturer's official documentation for the most accurate and up-to-date details.
Watch the latest video demos and reviews for the PT-9 Pro+ 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 Maxon PT-9 Pro+ 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
$142

Good
$195.52

Very Good
$199.99

Excellent
$249

Excellent
$249

Very Good
$135

Browse through eBay listings for the PT-9 Pro+ 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.

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Check out the latest news and articles from around the pedal world.

Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton
Anthony Easton