RoomMatch® Utility RMU208
small-format foreground/fill loudspeaker
Award-winning RoomMatch sound – now in smaller 2-way point-source
designs for high-level foreground music, under-balcony, zone-fill and vocalrange floor monitor applications
Bose EMB2 compression driver – for lower distortion and improved
vocal clarity compared to conventional foreground/fill models; also provides
consistent mid/high sonic character compared to that of RoomMatch fullrange and other RoomMatch Utility models
90° x 60° constant-directivity high-frequency horn – gives wide, even
coverage and may be rotated in enclosure
2 x Bose LF8 8-inch woofer – with 2.0-inch extended-excursion voice coil
extends response to 70 Hz for lowest vocal range
Quasi-3-way passive crossover with separate filters for each
transducer – provides more consistent frequency and polar response
compared to conventional crossover designs
70 Hz – 16 kHz frequency response and 126 dB maximum peak SPL –
deliver the performance required for most demanding applications
Flexible mounting with included U-bracket – rear enclosure panel also
includes 4 x M8 threaded inserts in 5.0” x 2.75” (127mm x 70mm) pattern
to accept third-party accessory mounting brackets
Product Overview
The RoomMatch Utility RMU208 small-format sound reinforcement loudspeaker is intended for use in high-quality foreground music,
under-balcony, zone fill and vocal-range floor monitor applications. The design features a single Bose® EMB2 compression driver to
provide mid/high frequency voicing similar to that of RoomMatch full-range array modules. Dual 8-inch woofers provide full-range output
and a multi-angle enclosure increases mounting flexibility.
TECHNICAL DATA SHEET
Key Features
Technical Specifications
System Performance
Frequency Response (+/-3 dB)
1
80 Hz - 16 kHz
Frequency Range (-10 dB)
70 Hz - 16 kHz
Recommended High-Pass Protection
Filter
70 Hz with minimum 12-dB/octave filter
Nominal Coverage Pattern (H x V)
90° x 60° (rotatable high frequency horn)
Crossover Type
passive; separate bandpass filters per transducer
Bose extended-lifecycle test⁴
300 W
AES transducer test⁵
400 W
1200 W
1600 W
94 dB
94 dB
3
119 dB
120 dB
Calculated Maximum SPL @ 1 m,
peak
125 dB
126 dB
Power Handling, long-term
continuous
Power Handling, Peak
2
Sensitivity (SPL / 1 W @ 1 m)
Calculated Maximum SPL @ 1 m
Transducers
Low Frequency
2 x Bose LF8 high-excursion 8-inch woofers (2-inch voice coil)
High Frequency
1 x Bose EMB2 extended-midband high-frequency compression driver (2-inch voice coil)
Nominal Impedance
8Ω
Physical
Finish
Two-part spray polyurethane coating, black or white
Grille
18-gauge (1.2 mm) perforated steel, powder-coated finish, black or white
Environmental
Indoor use only
Connectors
2 x Neutrik® NL4 and 1 x barrier strip, wired parallel
Suspension / Mounting
2 x M8 threaded inserts (1 each side) for U-bracket; 2 x M8 threaded inserts (1 each side) for vertical yoke mount, 4 x M8 threaded inserts on
rear surface (127 x 70 mm, 4-bolt pattern)
Dimensions (Enclosure only)
9.3" H x 27.0" W x 10.5" D (236 mm H x 686 mm W x 267 mm D)
Net Weight
37 lbs (16.8 kg) / 43 lbs (19.5 kg) with U-bracket
Shipping Weight
49 lbs (22.2 kg)
Product Code
Black
371836-0120
White
371836-0220
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RoomMatch® Utility RMU208
small-format foreground/fill loudspeaker
TECHNICAL DATA SHEET
Footnotes:
1
2
3
4
5
Frequency response and range measured on-axis with passive crossover in an anechoic environment.
Sensitivity measured in half-space boundary conditions with passive EQ, referenced to 1W/m.
Maximum SPL calculated from sensitivity and power handling specifications, exclusive of power compression.
Bose extended-lifecycle test using pink noise filtered to meet IEC268-5, 6-dB crest factor, 500-hour duration.
AES standard 2-hour duration with IEC system noise.
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RoomMatch® Utility RMU208
small-format foreground/fill loudspeaker
TECHNICAL DATA SHEET
Directivity Index and Q
30
1000
Directivity Index (dB)
25
20
100
Q
15
10
10
5
0
1
20
100
1000
Frequency (Hz)
10000
20000
RMU208
Beamwidth
Angle (degrees)
360
100
Horizontal
10
Vertical
20
100
1000
10000
Frequency (Hz)
20000
RMU208
Impedance
Impedance (Ohms )
100
10
1
20
100
1000
10000
Frequency (Hz)
20000
RMU208
On-Axis Response
Level (dB- SPL/1W @ 1m)
120
110
100
90
80
70
60
20
100
1000
Frequency (Hz)
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10000
20000
RMU208
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RoomMatch® Utility RMU208
small-format foreground/fill loudspeaker
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TECHNICAL DATA SHEET
Wiring Diagram
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RoomMatch® Utility RMU208
small-format foreground/fill loudspeaker
TECHNICAL DATA SHEET
Mechanical Diagrams
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RoomMatch® Utility RMU208
small-format foreground/fill loudspeaker
63 Hz Octave Band
125 Hz Octave Band
0
0
30
6
330
30
0
0
60
270
120
240
150
90
-24
270
120
210
240
150
30
0
150
-6
250 Hz
160 Hz
315 Hz
6
2000 Hz Octave Band
0
330
30
60
60
-18
-24
-30
270
120
240
90
-24
-30
270
120
210
240
150
-30
240
150
210
180
400 Hz
800 Hz
1600 Hz
500 Hz
1000 Hz
2000 Hz
630 Hz
1250 Hz
2500 Hz
8000 Hz Octave Band
0
0
330
30
0
6
16000 Hz Octave Band
0
330
30
0
-6
60
60
-18
-24
-30
270
120
240
210
90
-24
-30
270
120
240
150
180
300
-12
-18
-24
330
-6
300
-12
-18
6
0
-6
300
-12
150
270
120
180
4000 Hz Octave Band
6
90
210
180
300
-12
-18
-24
330
-6
300
-12
-18
6
0
-6
300
150
210
200 Hz
0
-12
90
240
125 Hz
0
60
120
100 Hz
1000 Hz Octave Band
330
270
180
0
30
-30
210
500 Hz Octave Band
90
90
180
80 Hz
6
300
-12
-18
-30
180
60
60
-24
-30
330
-6
300
-18
-24
6
0
-12
-18
30
30
330
-6
300
-12
90
250 Hz Octave Band
0
-6
60
6
210
180
90
-30
270
120
240
150
210
180
3150 Hz
6300 Hz
12500 Hz
4000 Hz
8000 Hz
16000 Hz
5000 Hz
10000 Hz
Bose Professional Systems Division
TECHNICAL DATA SHEET
Horizontal Plots
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RoomMatch® Utility RMU208
small-format foreground/fill loudspeaker
63 Hz Octave Band
125 Hz Octave Band
90
90
120
60
120
150
30
-30 -24 -18 -12 -6
0
330
240
90
120
60
30
-30 -24 -18 -12 -6
0
210
250 Hz Octave Band
150
6
180
0
300
330
240
100 Hz
200 Hz
125 Hz
250 Hz
160 Hz
315 Hz
90
150
30
-30 -24 -18 -12 -6
0
210
90
120
30
-30 -24 -18 -12 -6
0
330
0
300
330
240
210
300
330
240
300
270
800 Hz
1600 Hz
500 Hz
1000 Hz
2000 Hz
630 Hz
1250 Hz
2500 Hz
8000 Hz Octave Band
90
90
120
150
30
-30 -24 -18 -12 -6
180
0
210
330
300
90
120
30
-30 -24 -18 -12 -6
0
16000 Hz Octave Band
60
150
6
180
0
210
300
270
30
6
-30 -24 -18 -12 -6
330
240
60
150
0
270
180
0
6
0
210
330
240
300
270
3150 Hz
6300 Hz
12500 Hz
4000 Hz
8000 Hz
16000 Hz
5000 Hz
10000 Hz
Bose Professional Systems Division
6
0
400 Hz
60
0
180
270
4000 Hz Octave Band
240
30
-30 -24 -18 -12 -6
0
210
60
150
6
180
270
120
2000 Hz Octave Band
60
150
6
180
300
270
1000 Hz Octave Band
240
330
240
90
120
6
0
210
300
500 Hz Octave Band
60
0
180
270
80 Hz
120
30
-30 -24 -18 -12 -6
0
210
60
150
6
180
270
TECHNICAL DATA SHEET
Vertical Plots
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RoomMatch® Utility RMU208
small-format foreground/fill loudspeaker
TECHNICAL DATA SHEET
Architects’ and Engineers’
Specifications
The 2-way, full-range loudspeaker shall contain a single 2-inch
titanium-diaphragm compression driver and two (2) 8-inch cone
transducers with 2-inch voice coils. The loudspeaker shall contain
a quasi-3-way passive crossover network in which each woofer
and compression driver have separate networks with 200 Hz lowpass filter applied to one woofer, 1200 Hz low-pass filter applied
to the other woofer, and 1200 Hz high-pass filter applied to the
compression driver. The passive network will provide a consistent
coverage pattern and frequency response near crossover region.
The 2-way, full-range loudspeaker shall meet the following
performance specifications: On-axis system frequency response
shall be 80 Hz to 16 kHz (+/- 3 dB) without need for active
equalization. The loudspeaker sensitivity shall be 94dB SPL in
free field with 1 W input at 1 meter. The long-term power handling
rating shall be 400 W (AES test methodology using pink noise,
6 dB crest factor, 2-hour duration). Maximum continuous output
shall be 120 dB SPL and the maximum peak output shall be 126
dB SPL, both in free field. The nominal coverage pattern of the
high-frequency horn shall be 90° horizontal and 60° vertical, with
the horn capable of being rotated 90° in the enclosure by the
installer.
The loudspeaker enclosure shall be constructed of Baltic birch
plywood, protected by a two-part polyurethane coating. The
multi-angle enclosure will allow placement on floors with an
approximate 45° acoustic axis referenced to the floor surface.
The transducers shall be protected by a 1.5-mm perforated steel
grille with powder-coated finish. Input connectors shall be two
(2) Neutrik® NL4 Speakon® connectors and one barrier strip
terminal, wired in parallel. The finish will be available in black
or white (paintable). Loudspeaker dimensions shall be 9.3" x
27.0" x 10.5" (236 x 686 x 267 mm) and net weight shall be 36 lb.
(16.3 kg). The loudspeaker shall be the Bose RoomMatch Utility
RMU208 model.
All information subject to change without notice.
® 2015 Bose Corporation
All trademarks are those of their respective owners.
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