Technical Information
Frequency Range
40Hz to 300Hz ±3dB
Sensitivity1
87dB-SPL @ 1W, 1m (pink noise)
Maximum Acoustic Output2
110dB-SPL, @ 1m (pink noise)
Dispersion
Omnidirectional at all frequencies below 200Hz
Long-Term Power Handling3
200W continuous
Impedance
8Ω nominal
Mechanical Specifications
Dimensions:
18.1"D x 10.2"W x 26.7"H (46 cm x 25.9 cm x 67.8 cm) Weight: 45 lb (20 kg)
Connectors: Two (2) parallel-wired NL4 connectors
Available colors: White and Black
Enclosure construction: High-density MultiFiber multi-layer wood particle panel with high-impact foamed polypropylene end caps.
MB4 Loudspeaker
Combinations
Incremental bass output can be achieved by combining multiple MB4 units in close proximity.
# of PANARAY MB4s |
Max Output (dB) |
1 |
110 |
2 |
116 |
3 |
119 |
4 |
122 |
A single MB4 speaker is well matched in output and bandwidth to one or two PANARAY 402®-II, 502®A or MA12 loudspeakers, providing a full-range solution for distributed or portable systems.
Two or three MB4 speakers are a good match for higher-output loudspeakers, like the PANARAY 802®-III speaker, for engineered or portable systems.
For larger spaces that require even higher SPL, four or more MB4 speakers can be combined with each PANARAY LT series loudspeaker.
1Band-limited pink noise is applied to the MB4 speaker and amplified to a level at the loudspeaker terminals corresponding to 1 Watt as referenced to the nominal impedance. The average sound pressure level (dB-SPL) is measured at 1 meter from the speaker in an anechoic environment.
2Band-limited pink noise is applied to the MB4 speaker and amplified to a level at the loudspeaker terminals corresponding to the long-term rated power handling of the speaker. The average sound pressure level (dB-SPL) is measured at 1 meter from the speaker in an anechoic environment.
3Band-limited noise, meeting the IEC Standard #268-5 is applied to the MB4 speaker and amplified to a level at the loudspeaker terminals corresponding to the power handling of the loudspeaker. The loudspeaker must show no visible damage or measurable loss of performance after 100 hours of continuous testing.
PANARAY®
MB4 Modular Bass
Loudspeaker
General Description
The PANARAY MB4 Modular bass loudspeaker is a 200W, low-fre- quency loudspeaker that can be used for indoor permanent installations and for portable applications. Multiple MB4 speakers can be combined to effectively create a larger single bass source resulting in higher SPL.
The MB4 speaker’s output, bandwidth and size make it useful as a single bass unit, or as a modular building block to match other Bose® products in most professional systems.
The MB4 speaker can also be configured using MB4 Endfire or Broadside bass array spacing, described in the MB4 bass array sheet (PC 031395), and the PANARAY system digital controller to create directional bass.
The PANARAY MB4 Modular bass loudspeaker offers the following features:
•Wide frequency range, from 40Hz to 300Hz, which can be easily matched to any Bose professional loudspeaker
•High impact output for dominant bass material
•Rugged portable enclosure with metal grille and carrying handles
•Distinctive styling
•Recessed back plate with two Speakon® NL4 connectors
The MB4 speaker can be used with the Bose PANARAY system digital controller to provide smooth accurate spectral response over the entire operating range of the system.
The MB4 speaker can also be used with the Bose 1600 or 1800 amplifiers in combination with the MB4 plug-in EQ card to provide active equalization for the system.
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