Small-format foreground/fill loudspeaker
Key Features
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.
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.
Footnotes:
- 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.
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 126dB 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.
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