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FBT ProMaxX 15SA Active Subwoofer

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Quick Overview

FBT ProMaxX 15SA is a 15-inch subwoofer that is the perfect companion to the ProMaxX series of PA speakers.

FBT ProMaxX Sub Front


The FBT ProMaxX 15SA is a 15-inch band-pass subwoofer and is the perfect low-frequency extension for the ProMaxX range.

FBT ProMaxX 15Sa Subwoofer

The ProMaxX 15SA offers a frequency response of 38Hz – 120Hz with a maximum sound pressure level of 136dB at peak thanks to the Class-D 1200W RMS purpose built power amplifier with a highly efficient switch power mode. Housed in a 0.59-inch thick Baltic birch plywood construction has been covered in scratch-resistant black paint and comes with a top-mounted M20 stand adapter and two aluminium handles.

The FBT ProMaxX 15SA provides the user with a digital signal processing platform (DSP) with eight presets, two of which are EQs and four low-pass filters and two slots to save your own settings to. Other features include a control panel that grants access to XLR in & link, volume control, EQ presets, delay and phase switch from 0-180 degrees.

  • Compact band-pass design subwoofer with high SPL and punch.
  • 380 mm (15”) high excursion woofer with 75 mm (3”) voice coil, custom made for FBT by B&C.
  • Frequency response from 38Hz to 120Hz.
  • 1200W RMS Class D power amplifier with switch mode power supply.
  • Digital Signal Processor with 8 presets, 2 equalization with 4 LPF different frequency.
  • Control Panel with XLR input and link out, Volume, EQ Presets, Delay, Phase Switch 0°-180°, Ground-Lift Switch.
  • 15mm (5/8”) Baltic birch plywood cabinet with scratch & scuff resistant paint finish.
  • M20 (20 mm) top mount speaker stand socket, two aluminum carrying handles.
  • Provides additional low frequency reinforcement when used along with 2 – way ProMaxX speakers.
  • Configuration: Band pass 1 way
  • Built-in amplifier LF/HF: 1200W RMS
  • Built-in amplifier peak LF/HF: 2400w
  • Frequency response: 38 - 120Hz
  • Low Frequency woofer: 15" Neodymium with 3" VC
  • Maximum SPL cont/peak: 132 / 136 dB
  • Dispersion: Omnidirectional
  • Input impedance: 22kohm
  • Crossover Frequency: Preset Dependent
  • AC Power requirements: 640VA
  • Input connector: XLR with link out
  • Power cord: 5m IEC
  • Net Dimension (WxHxD): 507 x 585 x 605mm
  • Net Weight: 31kg
  • Transport Dimension (WxHxD): 615 x 670 x 715mm
  • Transport Weight: 35kg

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FBT ProMaxX 15SA Active Subwoofer