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 Performance |
|
System Type |
Self powered, two-way |
Frequency Response (+/-3 dB)1 |
40 Hz - 12 kHz |
Frequency Range (-10 dB)1 |
32 Hz - 14 kHz |
Nominal Dispersion |
195° H x 0° V |
Maximum SPL @ 1 m2 |
115 dB SPL (121 dB SPL peak) |
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 |
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B1 bass module: Two (2) 5.25" (133 mm) LF drivers (8 Ω) |
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B2 bass module: Two (2) 10" (254 mm) LF drivers (4 Ω) |
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 |
|
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 engine |
AC Mains |
IEC connector |
SHEET DATA TECHNICAL
Bose Professional Systems Division |
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OF 8 |
p r o . B o s e . c o m
L1® Model II
portable line array system
Physical |
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Enclosure |
Power Stand: Polypropylene cover with cast aluminum legs and steel chassis base |
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Cylindrical Radiator: Aluminum enclosuure with ABS baffle |
Grille |
Powder-coated perforated steel |
Dimensions |
Assembled height: 84.0" (2134 mm) |
Net Weight |
Power Stand: 23.7 lb (10.7 kg) |
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Cylindrical Radiators (pair): 33.7 lb (15.3 kg) |
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B1 bass module: 26.6 lb (12.1 kg) |
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B2 bass module: 45 lb (20.41 kg) |
Shipping Weight |
Power Stand: 32 lb (14.5 kg) |
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Cylindrical Radiators (pair): 41 lb (18.6 kg) |
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B1 bass module: 30 lb (13.6 kg) |
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B2 bass module: 52.2 lb (23.67 kg) |
Voltages |
|
USA/Canada |
100-120 V 50 / 60 Hz 500 W |
Europe |
220-240 V 50 / 60 Hz 500 W |
Footnotes:
1Frequency response and range measured on-axis with recommended active EQ in an anechoic environment.
2Maximum SPL calculated from sensitivity and power handling specifications, exclusive of power compression.
Bose Professional Systems Division
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p r o . B o s e . c o m
L1® Model II
portable line array system
Directivity Index and Q
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30 |
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1000 |
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25 |
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(dB) |
20 |
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100 |
Index |
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15 |
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Q |
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Directivity |
10 |
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10 |
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5 |
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0 |
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1 |
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20 |
100 |
1000 |
10000 |
20000 |
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Frequency (Hz) |
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L1 Model II |
Beamwidth
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360 |
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Angle (degrees) |
100 |
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Horizontal |
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10 |
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Vertical |
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20 |
100 |
1000 |
10000 |
20000 |
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Frequency (Hz) |
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L1 Model II |
On-Axis Response
1m)@ |
140 |
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130 |
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SPL/1V- |
120 |
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110 |
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(Max |
100 |
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Level |
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90 |
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80 |
20 |
100 |
1000 |
10000 |
20000 |
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Frequency (Hz) |
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L1 Model II |
SHEET DATA TECHNICAL
Bose Professional Systems Division |
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OF 8 |
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