Harmonic Design Beamforming loudspeakers offer great potential for improving sound distribution in complex architectures and highly reverberant rooms. The goal is to focus the sound only on auditory surfaces, while surfaces that cause unwanted reflections and produce disturbing diffuse sound to be shaded. This leads to a much better speech intelligibility and a first-class listening experience for every listener, allows an inconspicuous positioning of the speakers in previously inappropriate positions, as well as a flexible adaptation of the speaker radiation characteristics to different applications.

Compact Design.
The ultra-compact width of just 80 mm makes the hd ML-Series the narrowest beamforming speaker available, which is almost invisible in permanent installations. The elegantly designed aluminum enclosure and the finely woven steel grille with premium powder coating seamlessly integrate the sleek, unobtrusive look of the column speakers into the room architecture, inspiring planners, architects, system integrators, event organizers and the audience.

Genuine 1-Way Design.
For excellent and linear reproduction of a sound event from the lowest to the highest audible frequency, conventional loudspeakers must use different types of drivers to reproduce the entire frequency range. The result is incoherence and phase shifts in the middle frequency range due to different membrane mass, varying transient response and decay time speakers of different sizes have. The hd column loudspeakers of the hd ML- and PL-Series are exclusively equipped with full-range loudspeakers and thus trouble-free in the important mid-frequency range, as each loudspeaker has the same response and characteristics. The result is excellent sound quality for speech and music, improved dynamics and consistent horizontal coverage of the listening areas.

Cost Efficient.
With our Beamforming technology, we offer a completely new price-performance ratio. This allows the use of the technology for projects that would require influencing the sound beams, but have so far exceeded the budget. Our own in-house developed and manufactured components, algorithms and the planning software guarantee cost efficiency.

Scalable and Customizable.
The modular concept of the hd ML-Series continues in the Beam-Series. Up to 32 DSP/amplifier channels, scalable in segments of 8, individual length and RAL colors, seamlessly integrate the speaker into the architecture – not the other way around. The standard colors are black (RAL 9005) and white (RAL 9010) without surcharge. The continuous U-slot on the back of the aluminum profile allows the use of M6 square nuts to attach a wall mount adapter or the use of the hd mounting adapter for quick and easy mounting of the tilt and swivel stand adapter for mobile applications. M6 threads on the top and bottom allow wall mounting with L mounting brackets in the smallest space requirement. The electronic unit is integrated into the housing of the loudspeaker and is optimally protected by the continuous fine-structured design grid with backed acoustic foam and ensures an unobtrusive integration into any room architecture.

Dante Spoken here.
The Harmonic Design Beamforming loudspeaker are prepared for digital audio transmission with Danteaudio streams from e.g. mixers or Matrix systems This allows digital streaming of audio packets over a Dante network directly and without additional DA/AD conversion to the integrated DSP core and amplifiers. A software-controlled redundant input selector switch for the analogue secondary input ensures fail-safety if required. If no digital transmission is required, both analog inputs (primary and secondary) can be used to create an analog fallback strategy.

Way-Beyond Spatial Aliasing.
The selection of 2” full-range chassis enables the shifting of the inevitable spatial aliasing from linear loudspeaker arrays to the highest frequencies. Due to the increasing directivity of the speakers, this phenomenon is also suppressed. The motivation to keep the speaker diameter to a minimum has increased the challenges for our research and development department in terms of the size of multi-channel amplifiers and DSP platforms, but it was a necessary step to ensure the musicality of the beam-formed speaker array.

Multi-Channel DSP Architecture.
Based on the enormous computing power of our hd MultiDSP, a new multi-channel DSP architecture has been developed that meets the high demands of beamforming algorithms. Each of the up to 32 output channels as well as user channel features a 384 Taps FIR filter and 16x IIR filters in double precision. The all-new hd BeamDSP performs over 300 million instructions per second to meet real-time criteria and provide enough freedom to shape the sound as needed.

Powerful Amplifiers.
Each loudspeaker chassis is equipped with a DSP channel and a digitally interfaced and microprocessor controlled stateof- the-art Class-D amplifier. This guarantees best SNR for all gain settings and the possibility to surveil the impedance of each chassis and report its status in case of any fault. Each amplifier channel can deliver up to 75 watts into 4 Ω loads, delivering uncompromising audio with premium dynamics and headroom.

DSP Electronic Features

• 2In/32Out High-End hd BeamDSP with more than 300 MIPS
• redundant input section with fallback algorithm
• analog + digital inputs with Dante (optional)
• AdvancedDirectivityOptimization Algorithmus
• AdvancedRoomOptimization Algorithmus
• min.384 Taps FIR filter per input/output
• 16x IIR filter (double precision) per input/output
• 75W Class-D amplifiers with digital input for best SNR
• ImpedanceControl with fault detection
• multistage limiter architecture (Peak/RMS/Thermal)
• hd LevelZ Software via Ethernet/USB
• Switching contacts

Revolutionary HybridLineSource-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“ or 12“ neodymium low frequency chassis and reaches already a sensitivity of 107dB (hd HLS20P) and 108dB (hd HLS24P) in the low-mid-frequency range.

Powerful LineSource-Unit makes the difference.
The exceedingly large-dimensioned high frequency LineSource-section consists of three or four 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 newly 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 144 dB. The hd HLS24 HybridLineSource-System sets new standards in every event in the popular and daily used double-12“ class. With the use of multiple 1.4“ compression drivers 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 60 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 optionally 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.

Sophisticated accessories save time and costs.
The hd HLS-RF3 is a rigging frame and stand adaptor likewise that may be used to carry a single unit on a speaker stand with precise adjustable tilt in 1° steps from 0° - 20° as well as to fly a vertical array of up to three loudspeakers. This gives best flexibility for daily changing applications while reducing the accessories effort.

Sound with system.
Perfectly matched hd TourSys systems comprised of top loudspeakers, subwoofers and system amplifiers as complete Allround-PA systems are available. Several TourSys systems may be combined to realize shows with up to 10.000 listeners.

hd Infra212 - Hybrid Subwoofer

The hd Infra212 is a high-performance subwoofer with a hybrid enclosure design for the reproduction of extended low frequencies below 34 Hz. Compact dimensions and exceptional power reserves combined with minimal distortion make the hd Infra212 a modern yet flexible tool for large-scale touring and installation applications requiring extreme low- end, high SPL and great control over dispersion. The optimally tuned, vented, hybrid horn-loaded cabinet houses two special long-excursion 12” cone drivers with 4” voice coils.

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 throw, high efficiency and passive directivity pattern, the hd Infra212 can be optimally integrated into LineArray applications with HybridLineSource loudspeakers hd HLS20 and hd HLS24.

The cardioid radiation behavior is already generated passively with two or three stacked hd Infra212 up to 85 Hz, or 65 Hz in forward radiating operation An M20 threaded insert on the top and side of the enclosue allows a distance rod to be inserted. 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.

hd Infra218 - Hybrid Subwoofer

The hd Infra218 is a high-performance subwoofer for reproducing frequencies below 28 Hz. Compact dimensions and exceptional power reserves combined with minimal distortion make the hd Infra218 a modern and flexible tool for touring and installation applications requiring extreme low-frequency sound pressure and maximum control over dispersion. The optimally tuned, horn-shaped multiplex enclosure with bass reflex tuning accommodates two special 18″N high-performance chassis with a linear stroke of 30 mm and a load capacity of 14.4 kW. A large, flow-optimized center reflex port provides excellent air excitation with minimal turbulence and distortion. Thanks to its long throw range, high efficiency and passive directivity, the hd Infra218 can be optimally integrated into LineArray applications. Two M20 threads allow horizontal and vertical operation with distance rods. A Speakon turning socket in the protective grid allows cardioid configurations without an interchangeable cable.

The hd 12CXN is a high performance monitor with a coaxial 12"/1.4″ driver arrangement and well thought-out features. With over 30 years of practical experience in the development of coaxial chassis, the hd 12CXN has set a new standard for professional applications. The newly developed 12″/1.4″ coaxial loudspeaker with dual neodymium magnet system with 3″ voice coils for LF and HF each achieves excellent transient response thanks to the decoupling of both magnet systems. The hd 12CXN sounds clear and transparent due to the low crossover frequency at 900 Hz. The polymer diaphragm compression driver is located in the woofer magnet system and is connected directly to the cone diaphragm via a BEM-optimised waveguide. This means there are no shadows or reflections on the bass diaphragm from an external horn. The hd 12CXN achieves 80° cone coverage without the need for a separate horn. The large bass reflex port ensures remarkable bass reproduction. An important goal in the development process was to make our new 12″ coaxial driver comparable in acoustic performance to the usual 15″ Stage Rider models, but with drastically reduced dimensions and a weight of only 18 kg. With an overall height of less than 30cm, the low-profile enclosure can be integrated unobtrusively into any stage.

Adjustable monitor angles, a recessed tripod sleeve in the handle, flight and mounting points and a switchable connection panel make the hd 12CXN a true all-rounder. The monitor's 32° tilt angle can be easily adjusted to 38° or 45° in two stages using the integrated, fold-out risers. The rear of the cabinet is angled at 17° to keep the performer at the centre of the drum fill application. A flying bracket allows clustering and use in fixed installations with low ceilings.

The integrated passive crossover can be deactivated via the recessed rear panel and the hd 12CXN powered BI-AMP if required. The carefully designed crossover ensures accurate and phase-coherent summation of the individual paths, including frequency response correction, and ensures efficient operation with conventional amplifiers - plug & play - without additional corrections. A recessed switch on the connection panel allows the signal input to be switched from pin 1+/1- to 2+/2-. This means that with four amplifier outputs in a daisy chain, two AUX feeds can be played out using standard 4-pin cables without the need for special switcher cables, and the tap can be easily switched on the monitor. Four four-pin Speakon NL4 connectors are located on the side and rear of the monitor for flexible connectivity.

The full potential of the hd 12CXN is realised when used in conjunction with an hd system amplifier. An absolutely flat frequency response with linear phase behaviour provides even more natural reproduction and enormous protection against feedback at all levels. The BI-AMP mode with two amplifier channels allows you to squeeze every last bit of power and transparency out of the system. Application-specific presets ensure consistency and reliability, regardless of where and in what configuration the loudspeaker system is used or combined with hd subwoofer solutions.

The hd P-Series is acoustically identical to the hd Sub-Series with the difference that the hd P-Series houses a high-end hd MultiDSP and a powerful amplifier in the same enclosure and thus becomes a basic building block for any mobile Plug & Play system. This new DSP platform now enables all processing and control functions of large sound systems in easy-to-use plug & play active system.

On the back panel there are level indicators for each input and output channel, as well as a USB interface for setting and managing all audio parameters via PC. The extremely powerful processor offers FIR filters and IIR filters for the exact adaptation of the PA system to the respective application. The input section includes a routing matrix, a function generator (sine and noise generator) and 16 input IIR filters per input channel, and a 384 taps FIR filter. There are 16 IIR filters, 384 Taps FIR filters, 100 ms delay, 180° phase inversion, peak limiter, RMS limiter, gain and mute available per output channel. There are 20 factory presets for all Harmonic Design speaker system configurations stored for direct recall to the device so that it can always be reset to a defined default state of the system. This guarantees highest reliability of the connected speakers and ensures a very dynamic and linear sound.

For user-specific settings, another 20 freely configurable user presets are available to save and manage individual configurations. A well-read 4-line LCD display with 3.2″ screen size and 5 navigation buttons on the hd P15 and hd P18 enable easy and intuitive operation of all functions, as well as the loading of factory or user presets directly on the device without a PC.

Due to limited space, the hd P12stereo has limited access. All functions are fully available via the USB interface. This makes it possible to adapt the PA system to the changing requirements from day to day in the shortest possible time and makes the usual complete system change, for a small or large event, superfluous. In addition, the new and easy-to-use hd LevelZ PC remote software provides even more detailed information on individual requirements and an unlimited number of user presets and configurations.

The multi-channel Class-D amplifiers provide up to 2500W for power outputs and are designed to meet the highest audio quality and reliability requirements in mobile applications. This is ensured by a SMPS switching power supply with Power Factor Correction (PFC), which can be used even in unfavorable network conditions, such as Undervoltage or overvoltage, thanks to a universal operating range of 85 V to 265 V, can provide full power at all times and is therefore far superior to conventional power supplies.