The FBT ProMaxX 15SA, 15″ compact band-pass subwoofer is the perfect low-frequency extension for the ProMaxX range. The FBT ProMaxX 15SAshall meet the following performance criteria: Frequency response of 38Hz to 120Hz, Maximum SPL of 136dB peak, Class D 1200W RMS power amplifier with high efficiency switch mode power supply enclosed inside a thermally efficient lightweight aluminum die-cast chassis. The FBT ProMaxX 15SA provides a DSP with 8 presets, 2 equalization with 4 LPF different frequency. The FBT ProMaxX 15SA feature 0.59″ Baltic birch plywood construction covered in a scratch resistant black paint with M20 top-mounted stand adapter and two FBT design aluminium handles. The control panel provides XLR in & link, Volume control, EQ preset, Delay, phase switch 0°-180°, GND lift switch.

  • Brand: FBT
  • SKU: 332.570FB
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  • 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: 800 way
  • Built-in amplifier LF/HF: 1200 W RMS
  • Built-in amplifier peak LF/HF: 2400 W
  • Frequency response: 38Hz - 120Hz -6dB
  • Low Frequency woofer: 1x15 - 3 coil neodymium inch
  • Maximum SPL cont/peak: 132/136 half-space dB
  • Dispersion: omnidirectional HxV
  • Input impedance: 22 Kohm
  • Crossover Frequency: preset dependant KHz
  • AC Power requirements: 640 VA
  • Input connector: XLR with loop
  • Power cord: 5 m
  • Net Dimension (WxHxD) : 507x585x605 mm
  • Net Weight: 31kg
  • Transport Dimension (WxHxD) : 615x670x715 mm
  • Transport Weight: 35Kg