hd Infra212
Hybrid Subwoofer
A large, air flow-optimized center reflex port allows excellent air excitation with minimal turbulence and distortion. The transmission range from 34 Hz to 120 Hz makes the Infra212 the perfect bass extension for all Harmonic Design speakers. Thanks to its long range, high efficiency, and passive directivity, the hd Infra212 can be seamlessly integrated into line array applications alongside the hd HLS20 and hd HLS24 HybridLineSource loudspeakers.
Cardioid dispersion behavior is generated passively with two or three stacked hd Infra212 up to 85 Hz or 65 Hz in front-firing mode.
An M20 threaded insert on the top and side of the enclosure allows a distance rod to be attached. Protective skids made of high-strength PVC on two sides and corresponding recesses on the top of the cabinet ensure a secure footing. The NL4 Speakon jacks, mounted on the back of the recessed connector panel, are used to connect and route the input signal. A Speakon socket in the protective front grille allows cardioid configurations without special interchangeable cables.
| Modelname | hd Infra212 |
|---|---|
| Principle | Bass reflex system / horn-loaded |
| Equipment | 2x 12″ long-throw chassis 4″ voice coil, ventilated at pole core and centering |
| Crossover frequency | variable, depending on preset |
| Power rating (RMS / Peak) | 2000 W / 8000 W |
| Frequency range | 34 Hz – 160 Hz |
| SPL (1 W / 1 m) Groundplane |
102 dB |
| SPLmax (Half-Space) | 143 dB |
| Impedance | 4 Ohm |
| Connection | 2x Speakon NL4 1x Speakon NL4 reversible socket |
| Dimensions (W x H x D) | 846 x 366 x 480 mm |
| Weight | 54 kg |
| Enclosure | Robust multiplex housing Polyurethane coating black Recessed connection panel with 2x NL4 at the rear Reversible NL4 socket at the front 2x M20 thread 2x carrying handle Steel grille with acoustic foam on the inside |
| Options | Protective transport cover hd SlientWheels Set Weatherproof RAL color |










