Bose RM283505

The 2-way full-range array module loudspeaker system is equipped with six 2-inch titanium diaphragm compression drivers mounted in a continuous arc with diffraction slots. This system provides acoustic summation without significant peaks or dips in the frequency range from 500 Hz to 16 kHz and results in constant-directional horn guidance for effective pattern control up to approximately 1 kHz. The woofer section contains two 10-inch cone drivers with 3-inch voice coils, each in its own vented enclosure. External active digital signal processing is required to operate the array.

Performance specifications include a frequency response of 60 Hz to 16 kHz (+/- 3 dB) with recommended active crossover and equalizer, a low frequency sensitivity of 93 dB SPL in free field with 1 W input and a peak output of 126 dB SPL on-axis at 1 meter. In the high-frequency range, the sensitivity is 107 dB SPL in the free field and a peak output of 135 dB SPL on axis at 1 meter.

The cabinet is made of 11-ply Baltic birch wood, protected by polyurethane coating, with plastic composites for the woofer cabinets and steel rafters for the integrated rigging hardware. The rigging hardware can support up to 8 similar speakers with a 10:1 safety factor. Input connections are two Neutrik® NL4 Speakon® connectors wired in parallel.

The dimensions are 428 x 993 x 598 mm and the net weight is 55.8 kg.

Additional notes:
The measurements were carried out at a distance of 10 m, eliminating room effects to simulate an anechoic environment. The beamwidth was measured at 10 m and defined as -6dB point from the peak. The on-axis response shows a 1/10 octave band smoothed response with recommended active EQ. The horizontal and vertical plots present 1/3 octave band smoothed polar diagrams with recommended active EQ. The multi-modular vertical beamwidth was measured in the far field, with the -6dB point defined by the peak. The LF sensitivity of the array was measured on-axis, simulated with Modeler® software. The maximum array SPL @ 1 m was calculated from the sensitivity and power specifications, excluding power compression.

Product details : https://bose-pro.com/wp-content/uploads/2016/06/BOSE_RoomMatch_RM283505_RM352805.pdf