L1® Model II
portable line array system

Key Features

• High-performing, powered, portable two-way loudspeaker system with a 195° H x 0° V nominal dispersion designed for the production and reproduction of live music, music playback, speeches and A/V sound reproduction

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

• Consistent front-to-back coverage, 24 drivers mounted in a vertical line array produce little drop in sound pressure level per doubling in distance 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 Overview

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

  Technical Specifications

System Type
Frequency Response (+/-3 dB)1 Frequency Range (-10 dB)1 Nominal Dispersion
Maximum SPL @ 1 m2 Crossover Frequency

System Power Rating Low-Frequency Amplifier High-Frequency Amplifier Distortion at Rated Power System Limiter

Overload Protection Power Indicator

Driver Compliment

Signal Indicators
Trim
Input
Channel Gain (1/4" input) Maximum Input Signal Input Impedance

Bass Module out (for B1 or B2 only) Bass Line Output

ToneMatch Port AC Mains

Self powered, two-way 40 Hz - 12 kHz
32 Hz - 14 kHz
195° H x 0° V

115 dB SPL (121 dB SPL peak) 200 Hz (24 dB / octave)

500 W
250 W
250 W
0.1 % Max (30 Hz - 15 kHz) Dynamic limiter Fuse/MOV/NTC/PTC

Blue LED: system on, Red LED: fault

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)

Analog signal/clip LED: Green: signal present, Yellow: -3 dB below clip, Red: clip (limiter active) +14 dB @ max
1/4" - TS unbalanced or TRS balanced
-50 dB to +28 dB (line)

+24 dBu (balanced)
10 kΩ +/- 10 % (unbalanced)

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)

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.

CAT5 Ethernet cable with RJ45 connection providing digital audio and power connection for the optional T1 ToneMatch audio engine IEC connector

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L1® Model II
portable line array system

Enclosure

Grille Dimensions Net Weight

Shipping Weight

USA/Canada Europe

Footnotes:

Power Stand: Polypropylene cover with cast aluminum legs and steel chassis base Cylindrical Radiator: Aluminum enclosuure with ABS baffle

Powder-coated perforated steel Assembled height: 84.0" (2134 mm)

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)

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)

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

1. 1  Frequency response and range measured on-axis with recommended active EQ in an anechoic environment.

2. 2  Maximum SPL calculated from sensitivity and power handling specifications, exclusive of power compression.

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TECHNICAL DATA SHEET

L1® Model II
portable line array system

Mechanical Diagrams

L1 Model II

84.0” [2134mm]

26.0” [660mm]

Front View

27.2” [692mm]

Right View

26.0” [660mm]

Top View

3.7” [93mm]

3.7” [93mm]

5.0” [128mm]

27.2” [692mm]

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TECHNICAL DATA SHEET

L1® Model II
portable line array system

B1 bass module

14.0” [356mm]

Top View

10.8” [275mm]

14.1” [359mm]

Front View

16.7” [424mm]

17.7” [450mm]

Right View

10.4” [264mm]

2.4” [61mm]

12.0” [304mm]

3.4” [85mm]

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TECHNICAL DATA SHEET

L1® Model II
portable line array system

B2 bass module

23.4” [595mm]

Top View

19.9” [505mm]

23.4” [595mm]

Front View

17.7” [450mm]

18.9” [480mm]

Right View

13.3” [338mm]

2.8” [72mm]

12.2” [310mm]

3.9” [99mm]

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TECHNICAL DATA SHEET

L1® Model II
portable line array system

Architects’ and Engineers’ Specifications

The system shall be a multiple driver, full-range portable loudspeaker system with internally supplied power amplification, active equalization and external bass modules.

The transducer complement shall consist of twenty-four 2.25" (57 mm) high-excursion, high-frequency drivers mounted in an Articulated Array® loudspeaker design. The loudspeaker array shall 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 bass enclosure (B1 bass module). Or two 10" (254 mm) high- excursion, low-frequency drivers mounted in a vented bass enclosure (B2 bass module).

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

The input connectors of the power stand module shall consist
of one 1⁄4" TS unbalanced or TRS balanced receptacle and
one digital ethercon (RJ-45) receptacle for coupling the T1 ToneMatch® audio engine. The system's output connectors shall provide one NL4 receptacle capable of distributing power for two low-frequency B1 bass modules or a single B2 Bass Module. One 1⁄4" TRS line-level receptacle for supplying signal to a PackLite® extended bass package.

The enclosure of the top and bottom loudspeaker array shall be constructed of extruded aluminum. The system's power stand shall 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 line array system.

Safety and Regulatory Compliance

The L1® Model II system complies with the following standards:

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

• Ecodesign Directive 2005/32/EC

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

Product Codes

Power stand - 120V
Power stand - 220V
Cylindrical Radiator® loudspeaker top and bottom

B1 bass module B2 bass module

Accessories

T1 ToneMatchTM audio engine T1 ToneMatchTM audio engine power supply

T1 ToneMatchTM audio engine mic stand bracket

Packlite - 120 V Packlite - 240 V

PC 352077-0010 PC 042825
PC 351969-0010

PC 351964-0010 PC 353927-0110

PC 351968-0010 PC 042533

PC 042535

PC 351971-0010 PC 039058

All information subject to change without notice. ® 2012 Bose Corporation All trademarks are those of their respective owners.

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TECHNICAL DATA SHEET