L1® Model IIportable line array system

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Bose Professional Systems Division 1 OF 8

p r o . B o s e . c o m

Key Features• High-performing, powered, portable two-way loudspeaker system with

a 195° H x 0° V nominal dispersion designed for the production andreproduction of live music, music playback, speeches and A/V soundreproduction

• 24-driver articulated line array loudspeaker technology produceswide, uniform sound coverage throughout the entire listening area—even off to the extreme sides

• Consistent front-to-back coverage, 24 drivers mounted in a verticalline array produce little drop in sound pressure level per doubling indistance than a conventional point source

• Retractable folding leg mechanism for easy transport• Lightweight, interlocking components• Expandable bass design supports the use of multiple B1 bass modules

or a single B2 bass module• Digital Ethercon port provides single-wire connectivity for the T1

ToneMatch audio engine

Product OverviewThe L1 Model II is our most advanced system for audiences up 500, featuring a 24-speaker articulated line array to provide our best tonalbalance and coverage, and highest output.

Technical SpecificationsSystem PerformanceSystem Type Self powered, two-wayFrequency Response (+/-3 dB)1 40 Hz - 12 kHzFrequency Range (-10 dB)1 32 Hz - 14 kHzNominal Dispersion 195° H x 0° VMaximum SPL @ 1 m2 115 dB SPL (121 dB SPL peak) Crossover Frequency 200 Hz (24 dB / octave)AmplificationSystem Power Rating 500 WLow-Frequency Amplifier 250 WHigh-Frequency Amplifier 250 WDistortion at Rated Power 0.1 % Max (30 Hz - 15 kHz)System Limiter Dynamic limiterOverload Protection Fuse/MOV/NTC/PTCPower Indicator Blue LED: system on, Red LED: faultTransducersDriver Compliment Cylindrical Radiator® loudspeakers: Twenty-four (24) 2.25" (57 mm) HF drivers

B1 bass module: Two (2) 5.25" (133 mm) LF drivers (8 Ω)B2 bass module: Two (2) 10" (254 mm) LF drivers (4 Ω)

ChannelSignal Indicators Analog signal/clip LED: Green: signal present, Yellow: -3 dB below clip, Red: clip (limiter active)Trim +14 dB @ maxInput 1/4" - TS unbalanced or TRS balancedChannel Gain (1/4" input) -50 dB to +28 dB (line)Maximum Input Signal +24 dBu (balanced)Input Impedance 10 kΩ +/- 10 % (unbalanced)Additional ConnectionsBass Module out (for B1 or B2 only) NL4 connector (all pins wired, two for audio, two for auto sensing). Bass output signal for driving up to two B1 bass modules (one B1 bass

module = 8 Ω) (two B1 bass modules = 4 Ω) or one B2 bass module (4 Ω)Bass Line Output Post-DSP bass signal output. Accepts a 1/4" TRS cable. Supplies low frequency signal for connecting a PackLite® power amplifier or powered

sub woofer.ToneMatch Port CAT5 Ethernet cable with RJ45 connection providing digital audio and power connection for the optional T1 ToneMatch audio engineAC Mains IEC connector

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Bose Professional Systems Division 2 OF 8

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PhysicalEnclosure Power Stand: Polypropylene cover with cast aluminum legs and steel chassis base

Cylindrical Radiator: Aluminum enclosuure with ABS baffleGrille Powder-coated perforated steelDimensions Assembled height: 84.0" (2134 mm) Net Weight Power Stand: 23.7 lb (10.7 kg)

Cylindrical Radiators (pair): 33.7 lb (15.3 kg)B1 bass module: 26.6 lb (12.1 kg)B2 bass module: 45 lb (20.41 kg)

Shipping Weight Power Stand: 32 lb (14.5 kg)Cylindrical Radiators (pair): 41 lb (18.6 kg)B1 bass module: 30 lb (13.6 kg)B2 bass module: 52.2 lb (23.67 kg)

VoltagesUSA/Canada 100-120 V 50 / 60 Hz 500 WEurope 220-240 V 50 / 60 Hz 500 W

Footnotes:1 Frequency response and range measured on-axis with recommended active EQ in an anechoic environment.2 Maximum SPL calculated from sensitivity and power handling specifications, exclusive of power compression.

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Bose Professional Systems Division 3 OF 8

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Bose Professional Systems Division 4 OF 8

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Mechanical Diagrams

26.0”[660mm]

3.7”[93mm]

Front View

26.0”[660mm]

Top View

27.2”[692mm]

27.2”[692mm]

44.5”[1130mm]

84.0”[2134mm]

39.5”[1004mm]

5.0”[128mm]

Right View

3.7”[93mm]

L1 Model II

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Bose Professional Systems Division 5 OF 8

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10.8”[275mm]

14.0”[356mm]

12.5”[317mm]

14.1”[359mm]

17.7”[450mm]

16.7”[424mm]

10.4”[264mm]

3.4”[85mm]

2.4”[61mm]

12.0”[304mm]

Front View

Top View

Right View

B1 bass module

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Bose Professional Systems Division 6 OF 8

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19.9”[505mm]

23.4”[595mm]

23.4”[595mm]

21.8”[553mm]

18.9”[480mm]

17.7”[450mm]

13.3”[338mm]

3.9”[99mm]

2.8”[72mm]

12.2”[310mm]

Front View

Top View

Right View

B2 bass module

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Bose Professional Systems Division 7 OF 8

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Horizontal Plots

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L1® Model IIportable line array system

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All information subject to change without notice.® 2012 Bose Corporation

All trademarks are those of their respective owners.

Bose Professional Systems Division 8 OF 8

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Architects’ and Engineers’SpecificationsThe system shall be a multiple driver, full-range portableloudspeaker system with internally supplied power amplification,active equalization and external bass modules.

The transducer complement shall consist of twenty-four 2.25" (57mm) high-excursion, high-frequency drivers mounted in anArticulated Array® loudspeaker design. The loudspeaker arrayshall be wired in a series/parallel configuration.

The low frequency section shall be two 5.25" (133 mm) high-excursion, low-frequency drivers mounted in a vented bassenclosure (B1 bass module). Or two 10" (254 mm) high-excursion, low-frequency drivers mounted in a vented bassenclosure (B2 bass module).

The nominal horizontal beamwidth of the loudspeaker shallbe 195°, and the vertical coverage shall be a narrow band ofsound confined to the top and bottom of the array. The poweramplification for transducers shall be supplied by the integratedpower stand providing 500 W continuous pink noise, band-limitedfrom 40 Hz to 12 kHz (±3 dB).

The input connectors of the power stand module shall consistof one ¼" TS unbalanced or TRS balanced receptacle andone digital ethercon (RJ-45) receptacle for coupling the T1ToneMatch® audio engine. The system's output connectors shallprovide one NL4 receptacle capable of distributing power for twolow-frequency B1 bass modules or a single B2 Bass Module. One¼" TRS line-level receptacle for supplying signal to a PackLite®extended bass package.

The enclosure of the top and bottom loudspeaker array shall beconstructed of extruded aluminum. The system's power standshall be constructed of polypropylene materials.

The total assembled system height shall be 84" (2134 mm).

The total assembled system weight with the B1 shall be 84 lb(38.10 kg).

The total assembled system weight with the B2 shall be 102 lb(46.2 kg).

The loudspeaker shall be the Bose® L1® Model II portable linearray system.

Safety and RegulatoryComplianceThe L1® Model II system complies with the followingstandards:

• UL/IEC/EN 60065 7th Edition Safety Standard for Audioand Video Equipment

• Ecodesign Directive 2005/32/EC

This equipment has been tested and found to comply withthe limits for a Class A digital device, pursuant to Part 15of the FCC rules. This product complies with the CanadianICES-003 Class A specifications. This product conforms tothe EMC Directive 289/336/EC Under standards: EN55103-1& 2: 1997, Environment 2.

Product CodesPower stand - 120V PC 352077-0010Power stand - 220V PC 042825Cylindrical Radiator® loudspeakertop and bottom

PC 351969-0010

B1 bass module PC 351964-0010B2 bass module PC 353927-0110

AccessoriesT1 ToneMatch™ audio engine PC 351968-0010T1 ToneMatch™ audio enginepower supply

PC 042533

T1 ToneMatch™ audio enginemic stand bracket

PC 042535

Packlite - 120 V PC 351971-0010Packlite - 240 V PC 039058