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The RoomMatch Utility RMU206 small-format under-balcony fill loudspeaker features a unique angled baffle enclosure design to minimize the projected height for typical under-balcony and low-ceiling zone-fill applications
  • Frequency Response
  • Frequency Range
  • Power Handling, Peak
  • Sensitivity
  • Nominal Impedance
Brand: Bose
Model: RMU206
  • The RoomMatch Utility RMU206 small-format under-balcony fill loudspeaker features a unique angled baffle enclosure design to minimize the projected height for typical under-balcony and low-ceiling zone-fill applications.
  • The design also features a single Bose® EMB2 compression driver to provide mid/high frequency voicing similar to that of RoomMatch full-range array modules and all RoomMatch Utility models. 
  • Two 6.5-inch woofers provide vocal-range output and a rotatable high-frequency waveguide increases mounting flexibility.


  • Under-balcony and zone fill
  • High-quality foreground music
  • Stage-front fill

Key Features

  • Award-winning RoomMatch sound – now in smaller, 2-way, point-source designs for high-level foreground music, under-balcony, and zone-fill 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 to that of RoomMatch full-range and other RoomMatch Utility models
  • Minimal height for under-balcony or low-ceiling mounting – unique enclosure baffle design provides minimum projected height for under-balcony or low-ceiling mounted applications
  • 120° x 60° constant-directivity high-frequency horn – gives wide, even coverage and may be rotated in enclosure. Can reduce the number of speakers required for under-balcony applications  
  • 2 x Bose LF6 6.5-inch woofers – with extended-excursion voice coils extend response to 80 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
  • 80 Hz – 16 kHz frequency response and 122 dB maximum peak SPL – deliver the performance required for most demanding under-balcony and zone-fill 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



  • Two-part spray polyurethane coating, black or white


  • 18-gauge (1.2 mm) perforated steel, powder-coated finish, black or white


  • Indoor use only


  • 2 x Neutrik® NL4 and 1 x barrier strip, wired parallel

Suspension / Mounting 

  • 2 x M8 threaded inserts (1 each side) for U-bracket; 4 x M8 threaded inserts on rear surface (127 x 70 mm, 4-bolt pattern)


  • 7.5" H x 21.8" W x 9.5" D (191 mm x 552 mm x 241 mm)

Net Weight 

  • 25 lbs (11.3 kg) / 29 lbs (13.2 kg) with U-bracket

Frequency Response (+/-3 dB) 

  • 90 Hz - 16 kHz

Frequency Range (-10 dB) 

  • 80 Hz - 16 kHz

Nominal Coverage Pattern (H x V) 

  • 120° x 60° (rotatable high-frequency horn)

Power Handling, long-term continuous 

  • Bose extended-lifecycle test⁴: 200 W
  • AES transducer test⁵: 250 W

Power Handling, Peak 

  • Bose extended-lifecycle test⁴: 800 W
  • AES transducer test⁵: 1000 W

Sensitivity (SPL / 1 W @ 1 m) 

  • Bose extended-lifecycle test⁴: 92 dB
  • AES transducer test⁵: 92 dB

Calculated Maximum SPL @ 1 m 

  • Bose extended-lifecycle test⁴: 115 dB
  • AES transducer test⁵: 116 dB

Calculated Maximum SPL @ 1 m, peak 

  • Bose extended-lifecycle test⁴: 121 dB
  • AES transducer test⁵: 122 dB

Nominal Impedance 

  • 8 Ω