Harmonic Design Sub 12i | 12" Install Subwoofer

Code: HD40055

HARMONIC DESIGN hd Sub12i - Subwoofer: 1x 12", 400W AES, without handles + M20






Please call us on +353 (0)74 91 45179 for a price.
Or Email info@ror.ie for more information.

The hd Sub12, hd Sub15 and hd Sub18 are compact, transportable and powerful vented subwoofers. According to extensive research in designing high-power loudspeaker chassis over the past 30 years, the new designed longexcursion chassis with 3“ respectively 4“ voice coil, fiberglass double spider and single-role rubber surround enables linear excursion up to ± 15 mm. Dramatically improved cooling of the voice coil through the pole piece and spider allows an extremely high continuous power rating. Improved cooling increases the durability and reliability of the subwoofer. Excellent dynamics and tight impulse response combined with outstanding sound pressure level is the result. Filtering is done by the Harmonic Design DSP platform. The enclosure is constructed of high-quality birch multi-plywood coated with a durable scratch-, impact- and weatherproofed polyurethane finish. A special powder-coated steel grille with acoustic foam on the inside protects the driver. Additional rubber stacking feet at the bottom with matching receptacle on the opposing side guarantees safety stacking of multiple cabinets. Connection on the rear terminal by two Speakon NL4 on pin 2, pin1 is hard wired for linking the input signal. Optional RAL painting is available.

Install Model



  • 1x 12“ Long-Excursion Subwoofer 400 W / 800 W
  • frequency response from 40 Hz
  • ultra compact dimensions
  • subwoofer extension for hd M/ML-Series
  • Install Model
Frequency Response 40 Hz – 180 Hz Power Rating (RMS / Peak) 400 W / 800 W
Weight 19 kg Crossover active up tp max. 180 Hz
Transducers 1x 12″ long excursion chassis Principle Bassreflexsystem
Enclosure 15 mm birch multiplex Warnex finish acoustic foam ergonomic design transport handles M20 flange MODEL hd Sub12i Install
Dimensions (B x H x T) 400 x 370 x 420 mm Impedance 8 Ohms
Connection 2x Speakon NL4 Colour Black, RAL-colors Available on request
SPLmax (1 m) 122 dB Type Install Model
Sensitivity (1 W / 1 m) 92 dB

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