Project Description

NEXT-proaudio HFA115s 2-Channel Active Reflex Subwoofer


The HFA series are fully powered system solution, designed to deliver high output and dynamics, extreme linearity and fidelity for unrivalled performance.

  • Flared Ports for Less Power Compression
  • 15″/4″ Voice Coil, Long Excursion, Speaker
  • High Efficiency 2200Wprg Class-D Power Amplifier
  • Networkable DSP with Control Software
  • 740Wprg Output to Power External Satellite
  • Type: Active Reflex Subwoofer
  • Freq. Resp. (-6dB): 32Hz – X-over
  • Maximum SPL: 130.7dB/136.7dB (Half-space)
  • Subwoofer (internal) (RMS/Program/Peak): 1100W/1480W/2960W
  • Subwoofer Output (external) (RMS/Program/Peak): 550W/740W/1480W (4Ω)


Speaker Type Active Reflex Subwoofer
Frequency Response (-6dB) 32Hz – X-over
Calculated Max. SPL (Cont/Peak) 130.7dB/136.7dB (Half-space)
Loud Speakers 1 x 15″ (380mm)/4″ (100mm) VC, high excursion B&C custom speaker
Connectors Signal: 2 x XLR ; Power: 2 x powerCON ; Output to external satellite: 1 x NL4
Amplifier Technology 2 channel switched mode class D with DSP
Subwoofer (internal) (RMS/Program/Peak) 1100W/1480W/2960W
Subwoofer Output (external) (RMS/Program/Peak) 550W/740W/1480W (4Ω)
Controller PC controlled Networkable DSP 24bit/48kHz
System Presets 6 Factory and 2 User, selectable via software or rear panel switch
PC Control Via RS485 and suplied software “SOUNDWARE”
DSP Adjustable Parameters 6 PEQ, Delay, HPF, LPF, Bass Enhancer, Level, Polarity, Mute
AC Operating Voltage 180V – 245VAC
Nominal Power Consumption 770W
Dimensions (WxHxD) 448 x 556 x 511mm (17.64 x 21.89 x 20.12in)
Net Weight 37.1kg (81.8lb)