Harmonic Design P18 1800 W RMS active subwoofer, 18" driver, Class-D amp 1 x 2500 W + 2 x 800 W @ 4 ohm, hd MultiDSP and FIR

FEATURES

The hd P18 is a bass-reflex subwoofer with an 18" speaker that, acoustically, is identical to the hd Sub18, with the difference that it houses the high-end hd MultiDSP and powerful Class-D output stages in the same cabinet, thus becoming the basic component for any mobile Plug & Play system.

The custom 18" long-excursion woofer with a 5" voice coil on a fiberglass former allows for ±30 mm excursion. Through ventilation on the magnetic pole and the spider, coil heat is optimally dissipated, enabling an extremely high continuous power handling of 1800 WRMS and 7000 W peak. Less heat generation also means greater reliability and reduced thermal stress on the voice coil. The result is excellent dynamics and dry bass reproduction at incredible sound pressure.

The integrated digital power amplifier operates in Class-D. It is designed to meet the highest requirements for audio quality and reliability in both fixed installations and touring. Thanks to its extreme efficiency, heat generation is absolutely minimized compared to conventional analog amplifiers; the power amplifier requires less cooling and operates permanently within the safe area. The power stages incorporate a highly efficient switching power supply capable of delivering high performance even under difficult mains conditions, such as undervoltage or during live events due to long power lines, and is far superior to conventional power supplies with universal operating ranges from 95 to 265 V.

On the rear panel, there are VU meters for each input and output channel, as well as a USB interface for setting and managing all audio parameters via PC. The powerful DSP offers FIR and IIR filters to adapt the PA system to the respective application. This new DSP platform enables all the processing and control functions of large audio systems in an easy-to-use active Plug & Play system.

The input section includes a routing matrix, a noise and sine wave generator, and a freely configurable equalizer per input channel with 16 IIR filters and a 384-tap FIR filter. Each output channel has 16 IIR filters, 384-tap FIR filters, a 100 ms delay, 180° phase inversion, peak limiters, RMS limiters, gain, and muting. There are 20 factory presets for all Harmonic Design loudspeaker system configurations stored for direct recall on the device so that it can always be restored to a predefined system state. This ensures maximum reliability of the connected loudspeakers and provides a very dynamic and linear sound.

A clear 3.2" 4-line LCD display and 5 navigation buttons allow for simple and intuitive operation on the hd P18, as well as loading factory or user presets directly on the device without a PC.
All functions are clearly organized via the USB interface and the hd LevelZ remote control software: this allows the PA system to be adapted to changing daily needs in the shortest possible time and makes the usual complete system change unnecessary, whether for a small or large event. Furthermore, the new (and easy-to-use) hd LevelZ PC remote software provides even more detailed information on individual needs and an unlimited number of user presets and configurations.

With just one hd P18, you can drive two or four satellite or column speakers, as well as another passive hd Sub18. But there's more: the powerful amplifier allows the active system to be adapted to constantly evolving sound requirements. Depending on the room size and visual needs, small, medium, or large mid/high speakers can be connected to the active subwoofers, and, if necessary, two hd P18s can be used for a complete PA system. The DSP always ensures optimal sound at all levels and maximum operational reliability. The internal amplification saves a lot of weight, load space, and installation time. In addition, the Plug & Play system minimizes cabling and thus potential sources of error.

Main features

• 18" high-performance subwoofer (1800 W_RMS / 7200 W peak)
• Frequency response: 35 - 160 Hz
• 3-way Class-D amplifier (1 x 2500 W + 2 x 800 W @ 4 ohm)
• 3.2" LCD with navigation buttons and USB interface
• Access to all functions directly on the device without a PC
• High-end hd MultiDSP with FIR and IIR filters
• Multi-stage limiter architecture
• Installation version without handle available, without M20 thread
• LevelZ hd software

SPECIFICATIONS

Technical characteristics

• Principle: bass-reflex system
• Transducers: 1 x 18″ long excursion woofer with a 5″ voice coil, vented at the pole piece and spider
• Crossover: active up to max. 160 Hz
• Power handling: 1800 W_RMS / 7200 W peak
• Frequency response: 35 – 160 Hz
• Sensitivity: 102 dB/W/m
• SPL max: 141 dB (half space)
• Power @ 4 ohm: 1 x 2500 W + 2 x 800 W
• Enclosure: 18 mm multiplex birch wood, baffle 30 mm multiplex birch wood, polyurea plastic coating black, steel grille coated, prepared for wheels, transport handles, M20 thread insert
• DSP: hd MultiDSP 2 IN 4 OUT with FIR / IIR filter, multistage limiter architecture, hd LevelZ remote software, 3.2″ LCD with navigation buttons and USB
• Connections: 2 x XLR input + 2 x XLR link (balanced), 1 x NL4 output TOP L (2-pole), 1 x NL4 output TOP R & SUB (4-pole), 1 x XLR AUX output, 1 x powerCON mains input
• Options: transport protection cover, installation version, wheelboard, RAL color customization
• Dimensions: 53.6 x 54.2 x 60 cm
• Weight: 43 kg