PT-9 Pro+

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.