PANARAY® MB4 Modular Bass Loudspeaker - Bose

PANARAY ®MB4 Modular BassLoudspeakerGeneral DescriptionTechnical InformationFrequency Range40Hz to 300Hz ±3dBSensitivity 187dB-SPL @ 1W, 1m (pink noise)Maximum Acoustic Output 2110dB-SPL, @ 1m (pink noise)DispersionOmnidirectional at all frequenciesbelow 200HzLong-Term Power Handling 3200W continuousImpedance8Ω nominalMechanical SpecificationsDimensions: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-wiredNL4 connectorsAvailable colors: White and BlackEnclosure construction: High-densityMultiFiber multi-layer wood particlepanel with high-impact foamedpolypropylene end caps.MB4 LoudspeakerCombinationsIncremental bass output can beachieved by combining multiple MB4units in close proximity.# of PANARAY MB4s Max Output (dB)1 1102 1163 1194 122A single MB4 speaker is wellmatched in output and bandwidth toone or two PANARAY 402 ® -II, 502 ® Aor MA12 loudspeakers, providing afull-range solution for distributed orportable systems.Two or three MB4 speakers are agood match for higher-outputloudspeakers, like the PANARAY802 ® -III speaker, for engineered orportable systems.For larger spaces that require evenhigher SPL, four or more MB4speakers can be combined with eachPANARAY LT series loudspeaker.1 Band-limited pink noise is applied to the MB4 speaker and amplified to a level at the loudspeakerterminals corresponding to 1 Watt as referenced to the nominal impedance. The average soundpressure level (dB-SPL) is measured at 1 meter from the speaker in an anechoic environment.2 Band-limited pink noise is applied to the MB4 speaker and amplified to a level at the loudspeakerterminals corresponding to the long-term rated power handling of the speaker. The average soundpressure level (dB-SPL) is measured at 1 meter from the speaker in an anechoic environment.3 Band-limited noise, meeting the IEC Standard #268-5 is applied to the MB4 speaker and amplifiedto a level at the loudspeaker terminals corresponding to the power handling of the loudspeaker. Theloudspeaker must show no visible damage or measurable loss of performance after 100 hours ofcontinuous testing.The PANARAY MB4 Modular bassloudspeaker is a 200W, low-frequencyloudspeaker that can beused for indoor permanent installationsand for portable applications.Multiple MB4 speakers can becombined to effectively create alarger single bass source resulting inhigher SPL.The MB4 speaker’s output, bandwidthand size make it useful as asingle bass unit, or as a modularbuilding block to match other Bose ®products in most professionalsystems.The MB4 speaker can also beconfigured using MB4 Endfire orBroadside bass array spacing,described in the MB4 bass arraysheet (PC 031395), and thePANARAY system digital controller tocreate directional bass.The PANARAY MB4 Modular bassloudspeaker offers the followingfeatures:• Wide frequency range, from 40Hzto 300Hz, which can be easilymatched to any Bose professionalloudspeaker• High impact output for dominantbass material• Rugged portable enclosure withmetal grille and carrying handles• Distinctive styling• Recessed back plate with twoSpeakon ® NL4 connectorsThe MB4 speaker can be used withthe Bose PANARAY system digitalcontroller to provide smooth accuratespectral response over the entireoperating range of the system.The MB4 speaker can also be usedwith the Bose 1600 or 1800 amplifiersin combination with the MB4plug-in EQ card to provide activeequalization for the system.

I1800–IV PROFESSIONAL POWER AMPLIFIERCLIPPING LEVELCHANNEL 2 GAIN–1 dB4 5 6 –3 dB3789–12 dB2–40 dB1ON0 10 0CHANNEL 1 CHANNEL 210I1800–IV PROFESSIONAL POWER AMPLIFIERCLIPPING LEVELCHANNEL 2 GAIN–1 dB4 5 6 –3 dB3789–12 dB2–40 dB1ON0 10 0CHANNEL 1 CHANNEL 210POWERINPUT METERSL-dB 40 24 18 12 6 0 ORStereo Bank802 Full RangePRESETUTILITYLIMITDELAPANARAY DIGITAL SYSTEM CONTROLLERFull-Range System with Bose ® AmplifersFull-Range System with PANARAY ® system digital controllerMixerMixerPANARAY systemdigital controller1800-VI amplifierwith 802 ® -III speakerEQ card1800-VI amplifierwith MB4 speakerEQ card1234 567891234 56789AmplifierAmplifier802-IIIspeaker802-IIIspeakerMB4speakerMB4speaker802-IIIspeaker802-IIIspeakerMB4speakerMB4speakerLoudspeaker ConfigurationThe MB4 Modular bass loudspeakercan be used with the Bose ®1600 and1800 amplifiers. The MB4 plug-in EQcard must be used with theseamplifiers to provide active equalizationfor the system.When used with the PANARAY ®system digital controller, the MB4speaker is also compatible withindustry standard amplifiers rated for4Ω to 8Ω loads.The MB4 speaker is packaged oneper carton.InstallationInstallation and user instructions areincluded with the loudspeaker.MB4 Modular bass loudspeakers aredesigned to be wall mounted. Theycan also be configured as bassarrays, using the MB4 Endfire orBroadside spacing in conjunctionwith the Bose PANARAY systemdigital controller.No stands are required for portableuse.AccessoriesThe MB4 single-unit wall mountbracket is available from Bose.Engineers’ and Architects’SpecificationsThe loudspeaker shall be a multipledriver, low-frequency system withmatched active equalization asfollows:The transducer complement shallconsist of four low-frequency driversof 5.2" (13.3 cm) diameter, mountedsymmetrically in vertical pairs. Eachdriver shall have rated impedance of8Ω and shall be wired in series/parallel, resulting in compositenominal impedance of 8Ω.The loudspeaker system sensitivityshall be 87dB-SPL in the 40Hz to300Hz frequency range with measurementsreferenced to 1W (2.85V)pink noise input at 1m. The dispersionshall be omnidirectional at allfrequencies below 200Hz. The powerhandling capacity of the loudspeakershall be 200W continuous pink noise,band-limited from 40Hz to 300Hz.The loudspeaker shall be a ventedenclosure, tuned at 45Hz. The inputconnectors of the PANARAY MB4speaker shall consist of two parallelSpeakon ®NL4 receptacles.The enclosure of the MB4 loudspeakershall be composed ofhigh-density MultiFiber multi-layerwood particle panel with high-impactfoamed polypropylene end caps. Itsouter dimensions shall be 18.1"D x10.2"W x 26.7"H (46 cm x 25.9 cm x67.8 cm). Its weight shall be 45 lb(20 kg).The loudspeaker shall be the PA-NARAY MB4 Modular bass loudspeaker.The loudspeaker system shall beused with a separate system controller,to be connected to the input(s) ofthe system power amplifier(s), or withan MB4 speaker EQ card, to beinstalled in a Bose 1600 or 1800amplifier.The PANARAY system digital controllershall provide active electronicequalization and crossover functions.Safety and RegulatoryComplianceAll versions of the PANARAY MB4Modular bass loudspeakers complywith ANSI/EIA 636, RecommendedLoudspeaker Safety Practices andEMC Directive 89/336/EEC andArticle 10 (1) of the Directive incompliance with EN50081-1, EN50082-1, as signified by the CEmark.Warranty InformationAll versions of the Bose PANARAYMB4 Modular bass loudspeakers arecovered by a 5-year, transferablelimited warranty.©2003 Bose Corporation, The MountainFramingham, MA 01701-9168www.bose.comSubject to change without notice.269264 AM Rev.00 PC031394 JN30009