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Connector Wiring
The RoomMatch™ subwoofer is equipped with two (2) Neutrik
additional subwoofer. The connector is factory wired to provide discrete amplifier channel drive to each of the woofers as follows:
NL4 Connector Pin
1+
1 -
2+
2 -
Recommended Amplifier Power
Each 15-inch transducer of the RMS215 subwoofer features a long-term power-handling rating of 500 watts, with a transient peak rating
of 2,000 watts. Selecting the proper amplifier size for a given loudspeaker requires analysis of the transducer long-term (or RMS) power
rating, dynamic range of the input-source material (crest factor), desired sound pressure levels, and other factors. As a general guide-
line, to maximize the performance of the RMS215 subwoofer, we recommended using two (2) channels of amplifier power, each rated to
deliver 1,000 watts into a nominal 8-ohm load.
RMS215 Transducer
Driver-1
Driver-2
The Bose
PowerMatch™ PM8500 Professional Amplifier (sold separately) is easily configured to provide the recommended amplifier
®
power for the RMS215 subwoofer. It also provides presets for recommended signal processing, including several cardioid bass array
settings.
Recommended Signal Processing
Digital signal processing (DSP) equipment is required for infrasonic protection, crossover, equalization, and protection limiting functions.
The recommended processing for subsonic protection is a high-pass filter with center frequency of 40 Hz and a roll-off slope of at least
12-dB per octave (2nd order filter).
The recommended crossover frequency for the RMS215 subwoofer ranges from 80 Hz to 200 Hz, depending on the response of your
mid/high-frequency loudspeaker system. In general, we recommend using 24-dB per octave (4th order filter) crossover slopes between
the RMS215 subwoofer and your mid/high-frequency system.
The Bose ControlSpace
ESP (sold separately) provides presets for the RMS215 subwoofer and provides all required digital signal
®
processing, including processing for several cardioid bass array configurations.
English
Driver Bandpass Section
Driver-1 positive
Driver-1 negative
Driver-2 positive
Driver-2 negative
Nominal Impedance
8 ohms
8 ohms
NL4 connectors wired in parallel to allow loop-through connection to an
®
Amp Channel
1
2
Installation
Amp Power Rating
500 to 1000 watts
500 to 1000 watts
Installation and Safety Guidelines
Page 7
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