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 DATA SHEET
Technical Specifications
System Performance
System Type Self powered, two-way
Frequency Response (+/-3 dB)
Frequency Range (-10 dB)
Nominal Dispersion 195° H x 0° V
Maximum SPL @ 1 m
Crossover Frequency 200 Hz (24 dB / octave)
Amplification
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
Overload Protection Fuse/MOV/NTC/PTC
Power Indicator Blue LED: system on, Red LED: fault
Transducers
Driver Compliment Cylindrical Radiator® loudspeakers: Twenty-four (24) 2.25" (57 mm) HF drivers
Channel
Signal Indicators Analog signal/clip LED: Green: signal present, Yellow: -3 dB below clip, Red: clip (limiter active)
Trim +14 dB @ max
Input 1/4" - TS unbalanced or TRS balanced
Channel Gain (1/4" input) -50 dB to +28 dB (line)
Maximum Input Signal +24 dBu (balanced)
Input Impedance 10 kΩ +/- 10 % (unbalanced)
Additional Connections
Bass 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
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
ToneMatch Port CAT5 Ethernet cable with RJ45 connection providing digital audio and power connection for the optional T1 ToneMatch audio engine
AC Mains IEC connector
1
1
2
40 Hz - 12 kHz
32 Hz - 14 kHz
115 dB SPL (121 dB SPL peak)
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)
module = 8 Ω) (two B1 bass modules = 4 Ω) or one B2 bass module (4 Ω)
sub woofer.
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L1® Model II
portable line array system
Physical
Enclosure Power Stand: Polypropylene cover with cast aluminum legs and steel chassis base
Grille Powder-coated perforated steel
Dimensions Assembled height: 84.0" (2134 mm)
Net Weight Power Stand: 23.7 lb (10.7 kg)
Shipping Weight Power Stand: 32 lb (14.5 kg)
Voltages
USA/Canada 100-120 V 50 / 60 Hz 500 W
Europe 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.
Cylindrical Radiator: Aluminum enclosuure with ABS baffle
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)
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)
TECHNICAL DATA SHEET
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L1® Model II
portable line array system
Directivity Index and Q
TECHNICAL DATA SHEET
30
25
20
15
10
Directivity Index (dB)
5
0
20 100 1000 10000 20000
Frequency (Hz)
Beamwidth
360
100
Angle (degrees)
10
20 100 1000 10000 20000
Horizontal
Vertical
Frequency (Hz)
1000
100
Q
10
1
L1 Model II
L1 Model II
On-Axis Response
140
130
120
110
100
90
Level (Max- SPL/1V @ 1m)
80
20 100 1000 10000 20000
Frequency (Hz)
L1 Model II
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L1® Model II
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
portable line array system
Mechanical Diagrams
TECHNICAL DATA SHEET
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L1® Model II
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 V
iew
T
op V
iew
Right View
B1 bass module
portable line array system
TECHNICAL DATA SHEET
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L1® Model II
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
T
op View
Right View
B2 bass module
portable line array system
TECHNICAL DATA SHEET
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L1® Model II
portable line array system
Horizontal Plots
TECHNICAL DATA SHEET
125 Hz Octave Band
6
30
0
60
90
120
-6
-12
-18
-24
-30
150
1000 Hz Octave Band
6
30
0
60
90
120
-6
-12
-18
-24
-30
0
180
0
100 Hz
125 Hz
160 Hz
330
210
330
300
240
300
240
270
270
250 Hz Octave Band
6
30
0
150
-6
-12
-18
-24
-30
180
60
90
120
2000 Hz Octave Band
6
30
0
60
90
120
-6
-12
-18
-24
-30
0
330
300
270
240
210
200 Hz
250 Hz
315 Hz
60
90
120
30
150
0
6
0
-6
-12
-18
-24
-30
180
330
300
270
240
210
400 Hz
500 Hz
630 Hz
4000 Hz Octave Band
500 Hz Octave Band
0
330
300
270
240
60
90
120
0
6
30
0
-6
-12
-18
-24
-30
330
300
270
240
150
8000 Hz Octave Band
6
30
0
60
90
120
L1 MODEL II
-6
-12
-18
-24
-30
150
180
0
180
800 Hz
1000 Hz
1250 Hz
6300 Hz
8000 Hz
10000 Hz
210
330
210
300
240
270
150
180
16000 Hz Octave Band
0
6
30
0
150
-6
-12
-18
-24
-30
180
60
90
120
1600 Hz
2000 Hz
2500 Hz
12500 Hz
16000 Hz
210
330
210
300
240
270
150
180
210
3150 Hz
4000 Hz
5000 Hz
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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) highexcursion, low-frequency drivers mounted in a vented bass
enclosure (B1 bass module). Or two 10" (254 mm) highexcursion, 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 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 or a single B2 Bass Module. One
¼" 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 PC 352077-0010
Power stand - 220V PC 042825
Cylindrical Radiator® loudspeaker
top and bottom
B1 bass module PC 351964-0010
B2 bass module PC 353927-0110
PC 351969-0010
Accessories
T1 ToneMatch™ audio engine PC 351968-0010
T1 ToneMatch™ audio engine
power supply
T1 ToneMatch™ audio engine
mic stand bracket
Packlite - 120 V PC 351971-0010
Packlite - 240 V PC 039058
PC 042533
PC 042535
TECHNICAL DATA SHEET
Bose Professional Systems Division
All information subject to change without notice.
All trademarks are those of their respective owners.
® 2012 Bose Corporation
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