RoomMatch®  RMS215
RoomMatch RMS215

RoomMatch RMS215

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Overview

RoomMatch RMS215 subwoofer module is designed primarily to extend the low-frequency response of Bose RoomMatch arrays to 40 Hz. The RMS215 subwoofer module features dual Bose LF15 15-inch high-excursion woofers, with a proprietary port design that minimizes distortion and improves perceived transient impact. The durable Baltic birch enclosure with 2-part polyurethane coating allows reliable ground-stack applications.

Features

Subwoofer for Bose RoomMatch array module loudspeakers

Dual Bose LF15 15-inch, high-excursion, 4-inch voice coil transducers

1000 W long-term / 4000 W peak power handling

139 dB SPL peak maximum SPL at 1 m

Optional side-plate mounting kit (RMSFLY) allows integration with RoomMatch full-range modules in arrays

Optional Array Frames and Extender Bars allow cardioid configurations

Bose Modeler Software features presets for cardioid configurations

Applications

  • Theaters
  • Houses of worship
  • Auditoriums
  • Performing arts venues
  • Arenas

Images

Videos

Oslo Concert Hall

Ahmad Jamal

World Revival Church

RoomMatch used by Ahmad Jamal and Yukon Kornelius

Telus Spark Science Center

Hear the Reviews

RoomMatch & PowerMatch

Specs

Technical Summary

Frequency Range (-10 dB)
40 Hz - 280 Hz

Nominal Coverage Pattern (H x V)
Omni-directional below 100 Hz

Long-Term Power Handling
1000 W (4000 W peak)
Per woofer: 500 W (2000 W peak)

Nominal Impedance
2 x 8 Ω (discrete connection per woofer)

Sensitivity (SPL / 1 W @ 1 m)
Array Position (free field): 97 dB SPL
Ground Stack (half space): 103 dB SPL

Maximum SPL @ 1 m
Array Position (free field): 127 dB SPL (133 dB SPL peak)
Ground Stack (half space): 133 dB SPL (139 dB SPL peak)

Mechanical Diagrams

Front View

Top View

Side View

Product Codes

Black
330034-0110

Accessories

RMXSRT short extender bar
RMXSRT short extender bar
RMPULL pull-back bracket
RMPULL pull-back bracket
RMSFLY side-plate rigging for RMS215
RMSFLY side-plate rigging for RMS215
RMAFLG large-array frame
RMAFLG large-array frame
RMGSSB ground stack subwoofer brackets
RMGSSB ground stack subwoofer brackets
RMGSBK ground stack base kit
RMGSBK ground stack base kit
RMGSPB ground stack pitch brackets
RMGSPB ground stack pitch brackets
RMGSCK ground stack caster kit
RMGSCK ground stack caster kit
RMXLNG long extender bar
RMXLNG long extender bar
RMPINS quick release pins kit
RMPINS quick release pins kit

FAQs

What are the primary advantages of RoomMatch array module loudspeakers?

Bose RoomMatch modules define a new class of curvilinear array loudspeaker—the progressive directivity array—are designed to provide both concert-quality sound for live music and clear vocals for spoken word, with unmatched seat-to-seat tonal balance consistency for installed sound systems.

What are the available coverage patterns for full-range array modules?

RoomMatch array module loudspeakers are available in 42 coverage patterns , 20 symmetrical and 22 asymmetrical patterns, with many different horizontal and vertical coverage angle combinations available.
 

Why is it important to match loudspeaker coverage patterns with room dimensions?

With the Progressive Directivity Array configuration, both the horizontal and vertical coverage patterns are selected for each module in the array. Array coverage can be customized to exact room dimensions. This improves overall sound quality by reducing the unwanted room acoustic reflections that can cause frequency response dips and variations. In Progressive Directivity Arrays, narrow patterns are selected to cover the rear of the room, with progressively wider patterns selected to cover the middle and front seats in the room. The differences in module directivity index (DI) help equalize levels from the front seats to the rear seats. With Progressive Directivity Arrays, virtually any room size or shape can have great sound in every seat.
 

What is a Progressive Directivity Array?

A Progressive Directivity Array is an array where both horizontal and vertical coverage patterns of each module in array can be selected to provide optimal coverage customized to room dimensions, acoustics and SPL requirements. Overall sound quality is improved seat to seat, by reducing unwanted room acoustic reflections that can cause frequency response dips and variations. With 5 different vertical angles of coverage, the number of modules can be reduced for modest SPL and budget requirements, without sacrificing total vertical coverage angle or sound quality.
 

Are RoomMatch modules rated for outdoor installations?

No. RoomMatch modules have not been tested or rated for outdoor installations.

Can RoomMatch modules be used for portable tour sound applications?

No. RoomMatch array module loudspeakers have not been tested or rated for tour sound applications, in which daily setup and tear down are required, along with frequent long-haul transportation. With the ground stack accessories, occasional movement of the modules from storage to stage areas is acceptable.

Can I mix RoomMatch RMS215 and RMS218 subwoofer modules with full-range modules in the same array?

Yes. The subwoofer modules may be suspended using the optional RMSFLY215 or RMSFLY218 side-plate kit. The RMAFLG and RMAFSM accessory array frames accommodate both subwoofer and full-range modules.

Should I use RoomMatch RMS215 or RMS218 subwoofers in a three-way RoomMatch system?

Either subwoofer can be used in a three-way system. Since the maximum SPL is the same in their respective bandwidths, the decision of which to use will depend upon the needed frequency response, with the RMS215 usable down to 40 Hz (-10 dB) and the RMS218 usable down to 25 Hz (-10 dB).

What is the recommended power amplifier and signal processor for RoomMatch modules?

RoomMatch array modules provide optimal performance when used with Bose PowerMatch configurable power amplifiers. However, RoomMatch modules may be powered by any professional amplifier that meets the recommended power requirements. RoomMatch loudspeakers connect and configure easily to PowerMatch PM8500 and PowerMatch PM4500 amplifiers. Built-in loudspeaker and array EQ pre-sets, limiting, time delay, special array compensation filters and suitable output power ratings make these amplifiers ideal for use in designs with RoomMatch array module loudspeakers. Additionally, the Bose ControlSpace engineered sound processor also contains presets for required loudspeaker signal processing of RoomMatch modules, and can be used with power amplifiers from any manufacturer. Generic EQ, limiting and delay recommended settings are available for manual setup of other brands of DSP and amplifiers and may be downloaded from pro.Bose.com.

What are the primary advantages of RoomMatch array module loudspeakers?

Bose RoomMatch modules define a new class of curvilinear array loudspeaker—the progressive directivity array—are designed to provide both concert-quality sound for live music and clear vocals for spoken word, with unmatched seat-to-seat tonal balance consistency for installed sound systems.

Most 2-inch diaphragm compression drivers use crossover points of 1500 Hz or higher. How can the EMB2 compression driver use a 550 Hz crossover point without severely limiting power handling?

The EMB2 extended mid-band compression driver is designed specifically for RoomMatch loudspeakers. A new, patented phase plug allows response down to 300 Hz from a small-diaphragm driver, while lowering total harmonic distortion by reducing the compression ratio. With six EMB2 drivers in each full-range module, the combined diaphragm area is 50% greater than that of a 4-inch diaphragm driver, for improved midband response from 500 to 1000 Hz.

What is the maximum number of modules that can be used with standard rigging hardware?

Up to eight (8) modules with a 10:1 safety factor.

What is the best method to determine array room coverage and aiming?

Bose Modeler sound system software (version 6.7 or higher), which simulates the actual room acoustics, contains a new Array Design Tool to help system designers determine the optimal configuration and placement of RoomMatch arrays in a model.

What is the minimum array size recommended for RoomMatch full-range modules?

The flexibility of RoomMatch modules allows them to span applications normally associated with both conventional point-source and line array type loudspeakers. Thus, a single full-range RoomMatch module may be used with the RMBRKT surface-mount bracket to cover small listening areas.

Can I suspend the RoomMatch array frames from the center rail?

Yes. Due to recent modifications we have made to the array frame to increase its working load limit to the same rated limit as the other rails, you can now do permanent installations from the center rail as well.

Can single modules be suspended overhead without using an array frame?

Yes. Always use an accessory array frame or bracket to suspend RoomMatch full-range modules. However, the RMS215 and RMS218 subwoofer modules includes integrated M10 threaded inserts to allow suspension without array frames, provided the published Working Load Limits of the inserts are not exceeded.

Can the RMPULL pull-back bracket or RMBRKT surface-mount brackets be used with the RMS215 or RMS218 subwoofer module?

No. The configuration of the threaded inserts and RMSFLY plates does not allow the RMS215 or RMS218 subwoofer module to be suspended using the RMPULL pull-back or RMBRKT surface-mount brackets.

Can RoomMatch modules be used for ground stack applications?

Yes. Optional ground stack accessories are available to allow up to three (3) RoomMatch modules to be used for side and stage fill applications that require occasional movement. The ground stack accessories require at least one RMS215 or RMS218 subwoofer module be used in the ground stack array.