The hd Infra218 is a high-performance subwoofer Compact dimensions and exceptional power reserves combined with minimal distortion make the hd Infra218 a modern and flexible tool for touring and installation applications
The hd Infra218 is a high-performance subwoofer using hybrid enclosure design for reproducing extended low frequencies down to 32Hz. The compact dimensions, coupled with exceptional headroom and minimized
distortion makes the hd Infra218 a flexible tool for applications of large-scale tours and installations where high directivity control, extremely low-end and high SPL is required.
An optimally tuned, vented and hybrid horn loaded cabinet houses two linear, high-excursion 18-inch cone drivers. A large air-vent optimized port in the middle ensures a perfect coupling to the air while retaining minimum distortions. The Infras218´s 28 Hz to 100 Hz operating frequency range complements other Harmonic Design loudspeakers, allowing it to integrate smartly with LineArrays. Its cardioid directivity pattern works already with two or three stacked hd Infra218 down to 70 Hz respectively 55 Hz in front radiating mode.
Protective, plastic skids are included on the bottom of the cabinet that securely align with the cabinet‘s top slots. Units can be stacked normally or reversed for cardioid configurations. A separate Speakon connector is integrated in the front grill for easy setup of cardioid configurations.
- 2x 18“ High-Performance Hybrid Subwoofer 3600 W / 14400 W (RMS/Peak)
- frequency response from 28 Hz
- 149 dB SPLmax
- passive directivity
- 2x M20 flange
- weight 89 kg
Frequency Response | 28 Hz – 120 Hz | Sensitivity (1 W / 1 m) | 106 dB |
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Weight | 89 kg | Crossover | active up to 120 Hz |
Transducers | 2x 18“ long excursion chassis; 5“ voice coil, vented at pole piece and spider | Principle | Bassreflexsystem / horn-loaded |
Power Rating(RMS / Peak) | 3600 W / 14400 W | MODEL | hd Infra218 |
Dimesions (B x H x T) | 1190 x 536 x 670 mm | Impedance | 4 Ohms |
Enclosure | 18 mm birch multiplex baffle 36 mm birch multiplex polyurethan finish steel grille PVC skids 4x hd SilentWheels | Colour | Black, RAL-colors Available on request |
Connection | 2x Speakon NL4 1x Speakon NL4 reversed | SPLmax (1 m) | 149 dB |
Specifications | Groundplane, 10% THD |
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