Bose L1 Model II Mode d’emploi

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Bose Professional Systems Division

TECHNICAL DATA SHEET

Key Features

High-performing, self-powered, portable two-way loudspeaker•

system designed for the production and reproduction of live

music, music playback, speeches and A/V sound reproduction.

Spatial Dispersion• ™loudspeaker technology produces wide,

uniform sound coverage throughout the entire listening

area – even off to the extreme sides.

Consistent front-to-back coverage, vertical line array•

design produces a loss of only 3 dB in sound pressure level

per doubling in distance.

Retractable folding leg mechanism for easy transport.•

Lightweight, interlocking components.•

Expandable bass design supports the use of multiple•

B1 bass modules.

Digital Ethercon port provides single-wire connectivity•

for the T1 ToneMatch®audio engine.

For smaller to larger spaces with audiences of up to 500.•

Description

The L1®Model II portable line array system is a self-powered loudspeaker system designed to provide wide,

uniform sound coverage and easy setup. Spatial Dispersion loudspeaker technology delivers clear, powerful

sound throughout the entire listening area – even off to the extreme sides. The interlocking components

are easily transported and eliminate the need for external speaker wires and stands.

The system offers one ¼" TS unbalanced or TRS balanced analog input and one digital Ethercon port

for single-wire integration of the T1 ToneMatch audio engine. The L1 Model II system is well-suited for

professional applications such as music playback, speeches and A/V sound reproduction.

Descriptive Data

System Specifications

System Type Self-powered, two-way

Calculated Maximum SPL @ 1m (continuous and peak) 115 dB continuous, 121 dB peak

Frequency Range (-3 dB) 40 Hz – 12 kHz

Frequency Range (-10 dB) 32 Hz – 14 kHz

Crossover Frequency 200 Hz 24 dB per octave

Nominal Coverage Pattern 197° H

Power

System Power Rating 500 W

Low-Frequency Amplifier 250 W

High-Frequency Amplifier 250 W

Distortion at Rated Power 0.1% Max 30 Hz – 15 kHz

System Limiter Dynamic Limiter

Transducers

High-Frequency Drivers (Cylindrical Radiator®loudspeaker) (24) 2.25" HF drivers

Low-Frequency Drivers (B1 bass module) (2) 5.25" LF drivers (8 Ω)

L1®Model II

portable line array system

TECHNICAL DATA SHEET

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Descriptive Data (continued)

Inputs, Controls and Indicators

Power Indicator Blue LED = ON

Red = FAULT

Power Switch Switch system power on and off

AC Mains IEC Connector

Analog Signal/Clip LED Green = Signal Present

Yellow = -3 dB below clip

Red = Clip (limiter active)

Trim +14 dB @ max

Input ¼" – TS Unbalanced or TRS Balanced

Channel Gain -50 dB to +24 dB (Line)

Max Input Signal (Analog input) +24 dBu, (Balanced)

Input Impedance 10 kΩ+/-10% (Unbalanced)

Bass Module Out (for B1 bass module only) NL4 connector (all pins wired, two for audio, two for auto sensing)

Bass output signal for driving one or two B1 bass modules.

(1 B1 bass module = 8 Ω) (2 B1 bass modules = 4 Ω)

Bass Line Output Post-DSP bass signal output.

Accepts a ¼" 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 engine.

Physical Properties

Grille Powder-coated steel

Net Weight and Dimensions

L1®Model II Power Stand 23.7 lbs. (10.7 kg)

5" H x 10" W x 27" D (128 mm x 262 mm x 692 mm)

L1 Model II Cylindrical Radiator®Loudspeakers L1 Model II Cylindrical Radiator®loudspeaker top

16.3 lbs. (7.4 kg)

43.5" H x 3.7" W x 4" D (1105 mm x 89 mm x 105 mm)

L1 Model II Cylindrical Radiator®loudspeaker bottom

17.4 lbs. (7.9 kg)

43.5" H x 3.7" W x 4" D (1105 mm x 89 mm x 105 mm)

B1 Bass Module 26.6 lbs. (12.1 kg)

14.5" H x 10.25" W x 17.75" D (381 mm x 260 mm x 450 mm)

Shipping Weight

L1 Model II Power Stand 32 lbs. (14.5 kg)

L1 Model II Cylindrical Radiator®Loudspeakers 41 lbs. (18.6 kg)

B1 Bass Module 30 lbs. (13.6 kg)

Voltages

USA/Canada 100-120 V 50 / 60 Hz 500 W

Europe 220-240 V 50 / 60 Hz 500 W

L1®Model II

portable line array system

TECHNICAL DATA SHEET

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L1®Model II

portable line array system

Mechanical Diagrams

27.2"

(692 mm)

39.5"

(1004 mm)

44.5"

(1130 mm)

5.0"

(128 mm)

84.0"

(2134 mm)

26.0"

(660 mm)

3.7"

(94.3 mm)

27.2"

(692 mm)

39.5"

(1004 mm)

44.5"

(1130 mm)

5.0"

(128 mm)

84.0"

(2134 mm)

26.0"

(660 mm)

3.7"

(94.3 mm)

L1 Model II

B1 Bass Module

17.75"

(450 mm)

10.25"

(260 mm)

14.5"

(368 mm)

17.75"

(450 mm)

TECHNICAL DATA SHEET

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L1®Model II

portable line array system

Signal Flow Block Diagram

¼" Balanced Input

Adjustable Trim Level into A/D

A/D Left

From ¼" input

Lossy Peak

Detector

Limiter 0+12 dB

sum

EQ Hi Limiter Hi

EQ Lo Limiter Lo0 dB / -6 dB

LED

Front End 1 +18 dB

A/D Right

from Speakon 2+,2-

Bass Line Out

D/A Left to L2

D/A Right to B2

and Bass Line Out

EQ Table lookup

TECHNICAL DATA SHEET

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L1®Model II

portable line array system

Polar Plots ¹⁄³Octave Horizontal

120

150

180

210

240

270

300

330

-30 -24 -18 -12 -6 0 6

125 Hz Octave Band

100 Hz

125 Hz

160 Hz

120

150

180

210

240

270

300

330

-30 -24-18 -12 -6 0 6

250 Hz Octave Band

200 Hz

250 Hz

315 Hz

120

150

180

210

240

270

300

330

-30-24 -18-12 -6 0 6

500 Hz Octave Band

400 Hz

500 Hz

630 Hz

120

150

180

210

240

270

300

330

-30 -24 -18 -12 -6 0 6

1000 Hz Octave Band

800 Hz

1000 Hz

1250 Hz

120

150

180

210

240

270

300

330

-30 -24-18 -12 -6 0 6

2000 Hz Octave Band

1600 Hz

2000 Hz

2500 Hz

120

150

180

210

240

270

300

330

-30-24 -18-12 -6 0 6

4000 Hz Octave Band

3150 Hz

4000 Hz

5000 Hz

120

150

180

210

240

270

300

330

-30 -24 -18 -12 -6 0 6

8000 Hz Octave Band

6300 Hz

8000 Hz

10000 Hz

120

150

180

210

240

270

300

330

-30 -24-18 -12 -6 0 6

16000 Hz Octave Band

12500 Hz

16000 Hz

TECHNICAL DATA SHEET

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L1®Model II

portable line array system

Beamwidth

Directivity Index and Q

20 100 1000 10000 20000

Frequency (Hz)

Directivity Index (dB)

100

1000

20 100 1000 10000 20000

100

360

Frequency (Hz)

Angle (degrees)

TECHNICAL DATA SHEET

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L1®Model II

portable line array system

Engineers’ and Architects’

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®loud-

speaker design, coupled with two 5.25" (133 mm)

high-excursion, low-frequency drivers mounted in

a vented bass enclosure. The loudspeaker array

shall be wired in a series/parallel configuration.

The nominal horizontal beamwidth of the

loudspeaker shall be 197°, 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 ¼" 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 and one ¼" TRS line-

level receptacle for supplying signal to a PackLite®

extended bass package.

The enclosure of the Cylindrical Radiator®

loudspeaker 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),

while the total assembled system weight shall be

103 lbs. (46.7 kg).

The loudspeaker shall be the Bose®L1®Model II

portable line array system.

Safety and Regulatory Compliance

The Model II system complies with the following

standards:

UL/IEC/EN 60065 7• th 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.

How our Loudspeakers are

Measured

Calculated Max SPL

Calculated based on input sensitivity and maximum

input power rating exclusive of power compression.

More Information

Technical literature and other materials are

available at pro.Bose.com.

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All information subject to change without notice.

Bose, L1, Spatial Dispersion, ToneMatch, Cylindrical Radiator and PackLite are trademarks of Bose Corporation in the U.S. and other countries.

C_008054

L1®Model II

portable line array system

Product Codes

System*

L1®Model II System 120 V ...................................................... PC 042761

L1 Model II System 120 V with T1 ToneMatch®Audio Engine ......................... PC 044015

L1 Model II System 240 V ....................................................... PC 042824

L1 Model II System 240 V with T1 ToneMatch Audio Engine .......................... PC 044019

Available Accessories

B1 Bass Module ............................................................... PC 032494

T1 ToneMatch Audio Engine 100V – 240 V ........................................ PC 042826

T1 ToneMatch Audio Engine Power Supply ........................................ PC 042533

T1 ToneMatch Audio Engine Mic Stand Bracket .................................... PC 042535

T1 ToneMatch Cable Assembly 18' ............................................... PC 042536

T1 ToneMatch Carry Bag ....................................................... PC 042534

B1 Bass Module 4-Wire Speakon Cable Assembly ................................... PC 035404

PackLite®Power Amplifier Module ............................................... PC 039057

Replacement Part Numbers

Power Cord 120 V ............................................................. PC 035393

Carry Bag – L1 Model II Cylindrical Radiator®Loudspeaker (2 bags) .................... PC 044023

Carry Bag – L1 Model II Power Stand ............................................. PC 044024

Protective Slip Cover – B1 Bass Module............................................ PC 035025

B1 Bass Module Grille .......................................................... PC 263992

Loudspeaker Array Bayonet Assembly with qty. 2 (M6x 20 mm) screws ................. PC 035407

*Includes (1) B1 bass module.

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