Code: HD60032
The hd Infra221 is a high-performance subwoofer for reproduction of frequencies down to 24 Hz.
Please call us on +353 (0)74 91 45179 for a price.
Or Email info@ror.ie for more information.
Harmonic Design Infra221 - Hybrid Subwoofer: 2x 21"N, 3600w RMS @ 4 Ohms, 2x M20 plate
The hd Infra221 is a high-performance subwoofer for reproduction of frequencies down to 24 Hz. Compact dimensions and exceptional power reserves with minimal distortion make the hd Infra221 a modern and flexible tool for touring and installation applications where extreme sound pressure in the lowest frequency band and maximum control over the radiation behavior is required.
Its excellent impulse fidelity and fast response are unique for a double 21“ subwoofer and make it a universally applicable and linear subwoofer with brutal depth. Compared to the most powerful hybrid horn subwoofer to date, the hd Infra218, the Infra221 is able to generate more than 15 dBSPL more in the low frequency range below 28 Hz and is therefore aimed at users who require pressure and headroom even in the lowest octave need.
A large, CFD flow-optimized bass reflex channel in the middle ensures excellent stimulation of the air with minimal turbulence and the associated distortions – even at maximum load. Thanks to the long throw, high efficiency and passive directional characteristics, the hd Infra221 can be optimally integrated into large sound systems. The acoustic design allows it to be combined with all Harmonic Design tops and, as an infra extension, with all subwoofers. Two M20 threads enable horizontal and vertical operation of top parts with a spacer rod. A Speakon reversible socket in the protective grille enables cardioid configurations without an interchangeable cable. It is operated on all Harmonic Design® system amplifiers to ensure reliable and precise bass reproduction.
Features:
- 2x 21“N High-Performance Hybrid Subwoofer 3600 W / 14400 W (RMS/Peak)
- frequency range from 24 Hz
- 150 dB SPLmax
- passive directivity for stacks of 3 units
- 2x M20 threads
- weight 122 kg
- Principle: Bass reflex system/horn-loaded
- Transducers: 2x 21″N long-excursion woofer, 5“ voice coil, vented at pole piece and spider
- Crossover: active up to max. 110 Hz
- Power handling capacity (RMS/Peak): 3600 W / 14400 W
- Frequency range: 24 Hz – 110 Hz
- Sensitivity (1 W / 1 m) Groundplane: 106 dB
- SPLmax (Half-Space): 150 dB
- Nominal impedance: 4 Ohms
- Connection: 2x Speakon NL4, 1x Speakon NL4 turning socket
- Dimensions (W x H x D): 1395 x 595 x 865 mm, wheels: 1395 x 595 x 985 mm
- Weight: 122 kg
- Enclosure: robust multiplex housing, Polyurethane coating black, recessed connection panel with 2x NL4 rear, turning socket NL4 front, 2x M20 threads, 8x transport handle, Steel grille with acoustic foam inside
