Harmonic Design HLS20P | Revolutionary 20" Passive Loudspeaker

Code: HD60120

HARMONIC DESIGN hd HLS20P - HybridLineSource technology that dramatically reduces the needed truck space & improves the quality of public address systems






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

Revolutionary Hybrid LineSource-Technology. The HybridLineSource is a new and worldwide unique loudspeaker system developed by Harmonic Design, which reduces the needed truck space dramatically and improves the quality of a public address system to a new level of uniformity and complete absence of distortions. The HybridLineSource System is equipped with two specially designed high performance 10“ neodymium low frequency chassis and reaches already a sensitivity of 107dB in the low-mid-frequency range.

Powerful LineSource-Unit makes the Difference. The exceedingly large-dimensioned high frequency LineSource-section consists of three 1.4“ neodymium compression drivers with a special polymer diaphragm, coupled to dedicated LineSource wave formers generating a cylindrical wave front with a vertical opening angle of 40°. Therefore the throw of a HybridLineSource-System is comparable with a LineArray. Due to the coaxial setup the horizontal coverage pattern is free of interference in the crossover area and perfectly consistent over an angle range of 100°. Double-Hangs become redundant.

Efficiency new Defined. The innovative and unique hybrid horn-loaded-, vented-, coaxial- and LineArray- enclosure design ensures seamless efficiency, most compact dimensions and undistorted high SPL larger 143dB. The hd HLS20 HybridLineSource-System sets new standards in every event in the popular and daily used double-10“ class. With the use of multiple 1.4“ compressiondrivers the typically occurring distortion of a single driver at higher levels, is dramatically reduced another advantage is the improved headroom to cover larger distances. The special SuperVentedDesign ensures a dynamic and broadband reproduction below 70 Hz without additional subwoofers in standalone full range mode. Cut mode guarantees strict neutrality in maximum performance applications.

Easily Combinable. The mechanical structure allows the use on a speaker stand or flown vertical arrays. Every loudspeaker has an integrated 3-point FastRig-rigging system where the inter element curvature can be set precisely in 5° steps from 5° to 20°.

Reliable and Audiophile. Operation takes place with Harmonic Design system amplifiers and guarantees outstanding performance and compatibility even in the worst circumstances as well as highest efficiency in terms of power consumption, truck space and output level. Up to two loudspeakers can be connected in parallel to the Harmonic Design system amplifiers. An optional available passive phase optimized crossover allows simple and quick operation on a single system amplifier channel. The 2-way active BI AMP mode guarantees strict neutrality for maximum performance applications. An accurate prediction is possible with EASE Focus. 

Powerful LineSource-Unit makes the Difference. The exceedingly large-dimensioned high frequency LineSource-section consists of three 1.4“ neodymium compression drivers with a special polymer diaphragm, coupled to dedicated LineSource wave formers generating a cylindrical wave front with a vertical opening angle of 40°. Therefore the throw of a HybridLineSource-System is comparable with a LineArray. Due to the coaxial setup the horizontal coverage pattern is free of interference in the crossover area and perfectly consistent over an angle range of 100°. Double-Hangs become redundant.

Sound with System. There are perfectly matched hd TourSys systems comprised of top loudspeakers, subwoofers and system amplifiers as complete Allround-PA systems avaliable. Several TourSys systems may be combined to realize shows with up to 5.000 listeners.



  • passive 2-Way loudspeaker with 2x 10“N / 3x 1.4“N
  • coverage 100° x 40°
  • undistorted sound up to 143 dB
  • innovative hybrid horn-, bassreflex-, coaxial-, LineArray-Design
  • integrated 3-point-FastRig-Rigging
  • weight 35 kg
  • Ral Colours
Weight 35 kg Frequency Range 70 Hz – 20 kHz
Colour Black, RAL-colors Available on request Impedance passiveXO: 4 Ohms BI AMP: LF 4 Ohms, HF 6 Ohms
MODEL hd HLS20 Principle Bassreflexsystem / hybride Horn
Transducers 2x 10″N LF 3x 1.4″N HF Crossover 2-Way active or 1200 Hz, 2-Way passive
Power Rating (RMS / Peak) 1200 W / 4800 W Sensitivity (1 W / 1 m) 107 dB
SPLmax (1 m) 143 dB Connection 2x Speakon NL4
Dimensions (B x H x T) 400 x 520 x 540 mm Enclosure 15 mm Multiplex Polyurea-finish black powder-coated steel grille acoustic foam ergonomic transport handles flange adaptor integrated 3-Point FastRig-Rigging
Options RAL-colors outdoor Coverage horizontal 100° x vertical 40°

Reynolds of Raphoe Newsletter

Subscribe to our newsletter for the latest news, offers and updates.

Thank you for signing up! We'll be in touch with great offers.