WPM

Features and Applications

Product Details WPM

WPM is an ultra-compact two-way passive array for theatres, ballrooms, concert halls, multi-purpose venues, worship and corporate AV. It is specified for 130 dB peak output, or 136 dB peak with crest factor 4. Martin Audio describes systems projecting beyond 35 metres and serving venues up to 3000 seats; actual performance depends on the designed array and operating conditions.

LF integration and controlled HF coverage

Two 6.5-inch neodymium LF drivers are mounted within the HF horn walls to preserve a continuous horn profile. Contoured diaphragms prevent acoustic cavities, and demodulation rings reduce motor distortion while improving mid-band output. This integrated arrangement provides substantial LF output in the small enclosure.

Three HF drivers with 1.4-inch aluminium domes connect to the horn throat through short waveguides. They provide 100° horizontal constant directivity and coherent high-frequency summation across the listening area. The two-way passive network provides one amplifier path per element.

Handling, array roles and construction

Compact, lightweight cabinets and ergonomic three-point rigging support quick, repeatable assembly. Approved flown arrays contain up to 16 elements. Side and rear handles assist transport and angle setting. WPM can serve as a small main array or support larger systems in front-fill and delay roles.

The current enclosure has revised construction, paint and metalwork, with an IP54 specification, corrosion resistance, UV stability and temperature/humidity protection. VU-NET-controlled LEDs identify the cabinet circuit in the deployed array.

Scalable resolution and DISPLAY 3

System resolution is set by the number of enclosures assigned to each independently processed amplifier circuit. More circuits give DISPLAY finer control over audience coverage, frequency response and SPL consistency. Resolution can be chosen for the project budget, increased later by adding amplifiers, or varied between main arrays and auxiliary systems.

DISPLAY 3 combines mechanical angle selection with DSP optimisation against user-defined SPL and frequency-response targets. It models audience and non-audience areas, improves low-frequency control and provides greater flexibility in array length. Martin Audio describes its acoustic model as accurate to within ±1 dB of measured data. Hard Avoid can reduce energy at reflective ceilings, balcony edges or areas beyond the audience by up to 30 dB, subject to the system design.

Amplification, network control and identification

The array forms a complete system with dedicated external iKON Class D amplifiers. VU-NET transfers DISPLAY parameters over Ethernet and provides real-time control and monitoring. Dante supports digital audio distribution over CAT5 cabling, including longer cable routes and integration with other network-audio equipment.

Each amplifier output provides up to 1000 FIR taps at 48 kHz for wide-band optimisation. On current enclosures, an LED addressed through VU-NET identifies the cabinet circuit. This integrated design supports repeatable deployment and compatibility between inventories using the same system platform.

Explore the Martin Audio Wavefront Precision range at B-Star for the available system options.

Technical Specifications WPM