The 4PRO 1031-A is a two-way active bass reflex loudspeaker offering extraordinary compact size, high output and vocal fidelity.

It provides low distortion and consistent polar response in a flyable lightweight enclosure.
The 4PRO 1031-A comprises a 10” woofer and a 1.4” voice coil compression driver that is mounted to a 90° x 60° constant directivity horn.


  • 800 WATT PEAK, 400 WATT RMS
  • 127 dB max spl
  • 90 x 60, Wide dispersion constant directivity horn
  • 10″ woofer, 2″ voice coil
  • 1″ HF driver,1.4″ voice coil