Harmonic Design HD181 | Passive 1x8" Loudspeaker

Code: HD60055

HARMONIC DESIGN hd 181 - Universal loudspeaker: 1x 8“/1x 1“, 250W, Horn 80°x60°






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

The hd x81-Series are lightweight, compact and decent designed 2-way passive loudspeakers and consists of the universal loudspeakers hd 181 and hd 281 as well as the Low-Profile-Monitor hd 281M. Special developed 8 inch drivers in combination with an 1 inch compression driver with kapton diaphragm for improved HF extension and response linearity with excellent dynamics ensure perfect reproduction of speech and music. The eight inch woofer is superb for reproduction of vocals and instruments with its fast attack and decay. The HF driver is horn loaded with specially designed elliptical horn for smooth coverage pattern 80° x 60°.

The enclosure is constructed of high-quality birch multi-plywood coated with a durable scratch-, impact- and weatherproofed polyurethane finish. Equipped with comfortable handles for easy transport. A special powder-coated steel grille with acoustic foam on the inside protects the driver. Carefully placed M8 drive-in nuts and a flange on bottom enables the possibility of placing the loudspeaker on a distance rod or speaker stand. Additional rubber stacking feet at the bottom guarantees safety stand. Connection on the rear terminal by two Speakon NL4 on pin 1, pin2 is hard wired for linking the input signal. Optional RAL painting is available.



  • passive 2-Way loudspeaker with 1x 8” / 1x 1” elliptical Horn
  • coverage 80° x 60°
  • precise sound radiation
  • HiFi sound
  • lightweight enclosure
  • fullrange without DSP
Frequency Range 120 Hz – 18 kHz Sensitivity (1 W / 1 m) 94 dB
Weight 12 kg Power Rating (RMS / Peak) 250 W / 500 W
Crossover 1520 Hz, 2-Weg passive Conncetion 2x Speakon NL4
Transducers 1x 8″ LF; 1x 1″ HF with elliptical Horn Coverage horizontal 80° x vertical 60°
Principle Bassreflexsystem / elliptical Horn Options RAL-colors
MODEL hd 181 Enclosure 15mm birch multiplex, Polyurethan-coating black, steel grille powder coated, acoustic foam, ergonomic transport handle, flange, M8 drive-in nuts
Impedance 8 Ohms Dimensions (B x H x T) 245 x 430 x 280 mm
Colour Black, RAL-colors Available on request SPLmax (1 m) 121 dB

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