RCF SUB 9007-AS High Power Active Dual 21″ Subwoofer Speaker System


SKU: BBA5817 Categories: ,

Out of Stock

The SUB 9007-AS is one of the most powerful 2×21” subwoofers in the field of live sound. Featuring two, high power, hyper-vented 21” neodymium woofers with 4.0” inside-outside voice coils, this cabinet deliver a serious amount of low frequencies. Powered by a 7200 W digital amplifier, the SUB 9007-AS can perform in the most demanding situations. The housing of the SUB 9007-AS match the RCF D-Line HDL 50 and HDL 20 array systems, enabling stacked systems matched a perfect combination.


The new custom designed 21” transducers join the ultimate power performance to an incredible light weight. RCF manufacture these components to deliver the cleanest, punchiest and undistorted low frequencies reproduction. In order to dissipate the heat generated by the powerful 4.0” voice coil, RCF engineers have developed a unique ventilation system that offers the best thermal dissipation and the lowest power compression.


The cabinet is made of high quality birch plywood with every layer glued with a special water resistant adhesive that makes the cabinet weatherproof. The heavily braced internal structure of the cabinet survives long-term use and transportation and presents two separate acoustic chambers for the woofers and a separate housing for the amplifier to guarantee the best components efficiency and reliability.
The heavy-duty front grille integrates a central reinforcement bar and is power coated. The SUB 9007-AS is equipped with 8 aluminum handles (4per side) with ergonomic rubber handgrip and is ready to be equipped with transportation wheels.


A new generation DSP handles all the processing within the cabinet and allows control of soft clipping limiters, RMS limits, amplitude and phase equalization. From the enconder on the input panel it is possible to adjust gain, low pass and high pass crossovers, delay, phase and cardioid equalization. Using the integrated RDNet remote control it’s also possible to access all these setting.


  • Live sound
  • Rental
  • Portable PA, clubs, ballrooms, live theatre
  • House of worship
  • Club sound, DJs


  • 7200 Watt Peak power – 3600 Watt RMS
  • 143 dB max SPL
  • 25 Hz – 120 Hz frequency response
  • 2 x 21″ Woofer
  • DSP controlled Input section with selectable presets
  • Delay control
  • Integrated mechanics for multiple configurations with HDL50-A, HDL20-A, HDL10-A
  • RDNet remote and control
  • Baltic birch tour grade cabinet


  • Height:708 / 27.89 mm/inch
  • Width:1188 / 46.77 mm/inch
  • Depth:780 / 30.9 mm/inch
  • Net Weight:98 / 216.0 kg/lbs
Weight 98 kg


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