Phase Technology 13.25″ x 17.25″ High Current Amplifier

The P350 is the companion amplifier to Phase Technology custom in-wall subwoofer systems but its use is not limited to only subwoofer applications. It also has the flexibility of operation as a full range high current, high performance, mono-block audio power amplifier. 


The P350 is designed to be used with SoundTube, SolidDrive, Rockustics, and Phase Technology. When using with outdoor products, the amp should be located indoors or in a weather-proof encasing.

  • ColorBlack
    Manufacturer’s Suggested  
    ManufacturerPhase Technology
    Manufacturer’s CategoryAmplifiers
    Depth13.25 in / 336.55 mm
    Height2 in / 50.8 mm
    Width/Diameter17.25 in / 438.15 mm
    Shipping Weight23.9 lbs / 10.84 kg
    Carton Height7 in / 177.8 mm
    Carton Length21.5 in / 546.1 mm
    Carton Width16.75 in / 425.45 mm
    Included AccessoriesRack Mount Adapters
    Input Impedance22K Ω Unbalanced, 37.5K Ω Balanced
    Output TypeEuroblock
    Power Requirements120v: 3 Amps @ 8 Ω; 120v: 5.5 Amps @ 4 Ω
    Voltage Gain33 dB
    Crossover Frequency40 – 120 Hz; 24 dB /octave
    Frequency Response (± 10 dB)10 Hz – 20 kHz
    Frequency Response (± 3 dB)5 Hz – 60 kHz
    Magnetically BoostedNo