Bose L1 Model 1 Owners Manual

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ONTROLS, INDICATORS AND CONNECTIONS
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Channel 3/4 connections and controls
Line IN....................................... ¼-inch phone connector unbalanced line input
Level 0 to 12 ............................. Controls the source input level
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ONTROL, INDICATORS AND CONNECTIONS
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Bass, remote and AC power connections
B1 Bass Module................................ Bass output jack. Used to drive one or two B1 bass 
modules 
Bass - Line OUT................................ Balanced or unbalanced bass signal output for 
extended bass configurations 
Note: For more information on extended bass configurations, visit www.Bose.com/musicians.
Data IN............................................... Digital data input. Used for updating product software 
Data OUT........................................... Channel 1/2 digital output 
Remote............................................... Input connection for the R1 remote control 
AC Mains............................................ 3-conductor power cord connections 
Fuse.................................................... AC power fuse 
On/Off................................................. L1 model I power stand on/off switch
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ONTROLS, INDICATORS AND CONNECTIONS
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R1 remote control features
CH1/CH2 HIGH -12 to +12............... Cuts (-) or boosts (+) high-frequency sounds
CH1/CH2 MID -12 to +12................. Cuts (-) or boosts (+) mid-frequency sounds
CH1/CH2 LOW -12 to +12................ Cuts (-) or boosts (+) low-frequency sounds
CH1/CH2 LEVEL 0 to 12................... Adjusts the channel’s volume level
MASTER 0 to 12................................ Adjusts volume level of all channels
0 0
-12           +12
CH 2
HIGH
MID
LOW
MASTERLEVEL
CH 1
SIG / OL SIG / OL
00
0
0
-12           +12 -12           +12
-12           +12
-12           +12 -12           +12
0              120              12
0              12
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OPERATING INSTRUCTIONS
Producing individualized sound
This product will produce sound whether it is properly adjusted or not. However, if you take a 
few moments to follow a simple startup procedure, you can optimize the sound for a superior 
presentation based on your performance style and preferences.
Unless you make big changes in how you perform, this is typically a one-time event.
1. Set all Tr i m and Level controls on the L1 model I power stand to zero (0).
2. Set the MASTER and all LEVEL controls on the R1 remote control to zero (0).
3. Set the Power switch to On.
CAUTION: The peak inrush current for the system is approximately 32 amps. If more than one 
system is plugged into the same AC circuit, make sure you stagger the turn-on times. This can 
prevent tripping the circuit breaker or blowing the house mains fuse.
4. Plug your microphone or instrument into the Channel 1 or 2 Input jack. If phantom 
power is required for your microphone (condenser or electret/condenser type), depress 
the Phantom power button.
Note: You can dial in a preset to improve the tone of many commonly used microphones and 
musical instruments. See the preset list inside the rear panel door for a list of supported  
instruments.
5. Sing or play as loud as you would in a performance while following steps 6 and 7.
6. Adjust the Tr i m control so that the Signal/OL indicator goes from unlit to green, and 
finally to occasionally blinking red. Make sure that your instrument is at the highest 
 
volume setting that you are planning to use. For vocalists, sing as loud as you would  
during the performance to achieve the maximum expected input signal.
7. Adjust the LEVEL control on the R1 remote control and make the SIG/OL indicator go 
from unlit to green, and finally to occasionally blinking red.
That’s it! You’re done! When you go to your concert or show:
Use the CH 1 and 2 LEVEL controls on the R1 remote control to adjust the Channel 1 and 
2 volume level.
Use the MASTER control on the R1 remote control to adjust the volume level of all  
outputs.
Use the HIGH, MID, and LOW equalization controls on the R1 remote control to adjust the 
timbre of your sound.
Initially, keep the R1 remote control close at hand. This allows you to conveniently adjust the 
volume level when you first start playing. Later, you can move it out of the way or backstage 
once the system is performing the way you want it to. 
Note: For more information on presets and amplifying the true sound of your instrument(s), 
please visit www.Bose.com/musicians. 
Using input channels 3 and 4
The Channel 3 and 4 inputs are optimized for 0 dB line-level signals, such as the signals from 
an effects processor, mixer, or CD player. Simply connect the equipment to the L1 model I 
power stand and raise the output level using the Channel 3 and 4 Level control on the rear 
panel of the L1 model I power stand.
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PERATING INSTRUCTIONS
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Using an effects processor 
Serial connection method 
With the serial method, the complete signal is routed directly into one or more effects  
processors. Serially connected effects processors are connected in a chain and the signal is 
processed sequentially. Nearly all “stomp boxes” for guitars work this way, such as, an 
 
overdrive followed by a reverb.
In a serial effect hookup, the order in which effects are connected together matters. For 
example, it makes a big difference whether you run first through the overdrive and then the 
reverb, or first through the reverb and then through the overdrive.
Note: Always connect electronic equalizers, compressors, and limiters in serial. 
Parallel connection method
The parallel method is mainly implemented in conventional mixers through “aux” or “effect” 
send/return connections and controls. Effects processors get the original (unprocessed) 
 
signal as an input. The output of effects processors is then added together and summed with 
the original clean signal. There is a component of the original signal present in the output, 
such as reverb and delay, which are used for vocals.
Note: The parallel method mixes the original signal with the processed version. In the case of an 
equalizer, this generates highly undesirable interference and potential phase cancellation. Many 
digital effects processors have an internal processing delay, which is applied to the signal, even 
 
if no effect setting is applied. Mixing this delayed output with the original signal can result in  
unintended comb filtering.
IMPORTANT: When using an effects processor, determine and use the proper connection 
method (serial or parallel) for your application. Some effects MUST be hooked up in serial. 
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PERATING INSTRUCTIONS
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Using a serial effects connection with the L1 model I power stand
Note: Connecting an effects unit in serial requires a TRS split “insert” cable (with a ¼-inch TRS 
connector on one side, and two mono ¼-inch phone connectors on the other). This type of cable 
is readily available at most musical instrument stores and on the Internet.
1. Insert the TRS plug into the Channel 1 Insert jack on the L1 model I power stand.
2. Connect the ¼-inch mono plug (labeled “send”, “ring”, or “right”) to the input of the 
effects processor.
3. Connect the other ¼-inch mono plug (labeled “return”, “tip”, or “left”) to the output of the 
effects processor.
4. Adjust the effects level and mix of the effects processor.
Note: A very high output from the effects processor can overload the input of the L1 model I 
power stand. If the LED on the remote turns red, even if the channel LEVEL control on the R1 
remote control is below the 12 o’clock position, reduce the output level of your effects processor.
Note: The effects processor does interrupt the audio path. This may result in no audio output if 
the effects processor is turned off. To use a “clean” signal, do not turn the effects processor off, 
but put it in bypass mode.
Figure 8
Using a serial effects  connection
TRSTRS split “insert” cable
Connect to
Channel 1 Insert(Return, Left or Tip)
Connect to Effects Unit
OUTPUT(Send, Right, or Ring)
Connect to Effect Unit INPUT
Digital Effects Unit
L1 model I power stand
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PERATING INSTRUCTIONS
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Using parallel effects connection with the L1 model I power stand
Note: Connecting an effects unit in parallel requires one ¼-inch unbalanced (instrument) cable, 
one mono ¼-inch phone (M) to dual mono ¼-inch phone (F) “Y” cable adaptor, and one TRS split 
“insert” cable (with a ¼-inch TRS connector on one side and two mono ¼-inch phone connec
-
tors on the other).
1. Insert the TRS plug into the Channel 1 Insert jack on the L1 model I power stand.
2. Connect both ¼-inch plugs from the “insert” cable into both receptacles on the “Y” cable 
adaptor.
3. Connect the plug of the “Y” cable adapter into the input of the effects processor.
4. Connect the ¼-inch unbalanced (instrument) cable from the output of the effects  
processor to Channel 3 Line IN of the L1 model I power stand. 
5. Set the effects level of the processor to full and turn the mix level of the effects processor 
to full “wet”.
6. Adjust the Channel 3 Level control of the L1 model I power stand for the desirable 
effects mix.
Figure 9
Using a parallel effects  connection
TRS split “insert” cable
1/4-inch Instrument Cable
Mono 1/4-inch Phone (M) to 
dual mono 1/4-inch Phone (F)
“Y” cable adaptor
Connect to Effect Unit INPUT
Digital Effects Unit Connect to Effects
Unit OUTPUT
Connect to
Channel 3 Line IN Connect to
Channel 1 Insert
L1 model I power stand
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TROUBLESHOOTING
If you experience problems while using this product, try the following solutions. If you still 
can’t solve the problem, please call the Bose® Live Music Product and Technical Support 
Team direct at 877-335-2673 to arrange for service. 
Recommended troubleshooting tools:
 Portable voltmeter  B1 bass module 4-wire cable (blue) 
 Cable tester Spare T15AH fuse (US/Canada) 
Spare T10AH fuse (Europe)
 AC outlet tester Spare AC power cord
 XLR and ¼-inch phone plug cables 
ProblemWhat to do
System is plugged in, 
power switch is on, but 
power LED is off Make sure you have power at the AC outlet. Try operating a lamp or other equipment 
from the same AC outlet or test the outlet using an AC outlet tester.
 Make sure the L1 model I power stand’s power cord plug is fully inserted into the  
AC outlet. 
 Check the line fuse on the L1 model I power stand. 
Power LED is on (green), 
but no sound Make sure volume control is turned up on your instrument.
 Make sure the applicable level control is turned up (Tr i m , or Channel 3/4 Level on the 
L1 model I power stand; CH 1/2 LEVEL and MASTER level on the R1 remote control). 
 Make sure your instrument is plugged into the Channel 1/2 Input or Channel 3/4 Input 
jack. 
 Connect your instrument to the L1 model I power stand using a different cable. 
 Plug your instrument into a different amplifier to make sure the instrument is working. 
Power LED is red while the 
L1 model I power stand is 
on Please call Bose Live Music Customer Support at (877) 335-2673 for assistance.
House circuit breaker 
keeps tripping If you have more than one L1 model I power stand plugged into the same AC circuit, 
stagger the turn-on times. Each L1 model I power stand has an inrush current of about 
32 amps when turned on. 
 If you have more than three L1 model I power stands plugged into a single 15 amp  
circuit, move some systems to another AC circuit. Each L1 model I power stand can 
draw 5 amps or more when playing at high volumes for long periods of time. 
With nothing plugged into 
the audio input or output 
connectors on the rear 
panel of the L1 model I 
power stand, a slight hum 
or buzz is heard from the 
L1 or B1 Using an AC outlet tester, test the AC outlet that the L1 model I power stand is plugged 
into for reversed or open (hot, neutral, and/or ground) contacts.
 If using an extension cord, make sure that the cord is also tested as above.
B1 bass module is plugged 
in, but no bass audio is 
heard Make sure you are using the (blue) B1 bass module 4-wire cable included with the B1 
bass module. 
 Make sure that the B1 bass module cable is plugged into the B1 Bass Module jack on 
the L1 model I power stand. 
 Try a different 4-wire cable. 
 Check that the B1 bass module cable connectors are fully engaged in the jacks.
 If available, try a different B1 bass module. 
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ROUBLESHOOTING
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B1 bass module sounds 
out of balance with the 
system Make sure you are using the (blue) B1 bass module 4-wire cable included with the B1 
bass module package.
 Make sure that the B1 bass module grille is facing forward toward the musicians and 
audience.
No mid/high sounds heard 
from the L1 model I 
 
Cylindrical Radiator®  
loudspeaker 
 Make sure L1 model I Cylindrical Radiator® loudspeakers are firmly seated in their  
connectors. 
 Make sure connections are not bent or broken. 
 Try cleaning the contacts on the L1 model I Cylindrical Radiator™ loudspeakers with 
electronic contact spray cleaner. 
System momentarily mutes 
when changing presets or 
plugging/unplugging the 
B1 bass module This is a feature of the L1 model I power stand that allows the user to hear that internal 
changes have been made.
Microphone sounds  
distorted
 Make sure the red clip light is not constantly on. If it is, lower the trim.
 Try a different microphone.
 Try your microphone on another L1 model I power stand.
One of the four 
instruments plugged into 
the L1 model I power stand 
is at a lower volume than 
the others 
If the instrument is plugged into Channel 3/4, use a direct box or high-to-low 
transformer (high impedance instruments, such as non-active guitars or basses, are not 
designed to be plugged directly into a low impedance input). 
 If the instrument’s volume is still lower than the others, try a similar instrument in the 
same channel. If this solves the problem, your instrument may not be working correctly. 
Line OUT signals on  
channels 1 and 2 are very 
loud when connected to 
another L1 model I power 
stand or a mixer with only 
 
mic-level input
The Line OUT jack operates at a +4dBu professional line level; it is meant to connect to 
compatible mixing consoles.
 Use inline pads to reduce the signal gain to a manageable level.
Line OUT is not meant to be used with L1 model I power stands. Some advanced  
configurations are detailed online at www.Bose.com/musicians.
Line OUT signals on  
channels 1 and 2 are very 
noisy
 Check to make sure that the receiving device (mixer) is set up to receive a +4dBu level 
signal.
 Try powering the receiving device from the same outlet as the L1 model I power stand.
 Try using an XLR ground-lift barrel adapter or direct box.
Third-party powered sub-
woofer sounds poor when 
connected to the Bass -
Line OUT connector on 
the L1 model I power stand
 Unplug any B1 bass modules that may be connected to the L1 model I power stand.
 The signal from the Bass - Line Out may be too high for the powered subwoofer, try 
attenuating the signal using commercially available direct boxes or in-line pad devices.
 Try different connections to the third-party powered subwoofer such as balanced or 
unbalanced cabling and/or a direct box.
 Check that the gain and input controls on the third-party powered subwoofer are set 
appropriately. 
 If using a powered subwoofer with an adjustable crossover, set the crossover to 180Hz.
B1 bass modules powered 
by a third-party power 
amplifier and connected to 
the Bass - Line OUT 
 
connector sounds poor
 Ensure that at least two B1 bass modules are powered directly from the L1 model I 
power stand (connected to the L1 model I power stand’s B1 Bass Module jack) and 
using the (blue) B1 bass module 4-wire cable.
 Check the gain settings on the third-party power amplifier. The volume level of the B1 
bass modules powered by the L1 model I power stand should be similar to the bass 
modules powered by the external amplifier.
Problem What to do
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ROUBLESHOOTING
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Customer service
For additional help in solving problems, contact Bose® Live Music Customer Service Product 
and Technical Support Team at (877) 335-2673 or visit our support area online at 
www.Bose.com/musicians.
Cleaning your product
 You may clean the product enclosures using only a soft dry cloth.
 Do not use any solvents, chemicals, or cleaning solutions containing alcohol, ammonia  
or abrasives.
 Do not use any sprays near the product or allow liquids to spill into any openings.
 If necessary, you may carefully vacuum the grille assembly of the L1 model I Cylindrical 
Radiator® loudspeaker.
Limited Warranty and Registration
Your L1™ model I system is covered by a limited transferable warranty. Details of the warranty 
are provided with your product. Register your products online at 
www.Bose.com/register or 
call 800-905-1044. Failure to do so will not affect your warranty rights.
Accessories
Visit www.Bose.com/musicians, or call (800) 905-0886 for accessory information.
Microphone is  
encountering feedback
 Orient the microphone so that it is not pointing directly at its respective L1 model I 
Cylindrical Radiator® loudspeaker.
 Try a different microphone.
 Try a different position for the L1 model I Cylindrical Radiator® loudspeaker and/or 
vocalist on stage.
 Increase the distance from the L1 model I Cylindrical Radiator® loudspeaker to the 
microphone.
 Reduce the HIGH control on the R1 remote control for that microphone.
 If using a vocal effects processor, make sure that it is not contributing to the feedback 
problem.
R1 remote control is not 
working  Try a different 7-pin cable for the R1 remote control. 
 Make sure the R1 remote control cable is firmly seated in the jack on the remote and the 
L1 model I power stand. 
 Try resetting the L1 model I power stand: Turn the L1 model I power stand off, wait 30 
seconds, and turn back on.
Poor-sounding  
prerecorded stereo 
playback (using such 
devices as a CD player)
 Run both left and right stereo channels into separate channels in the L1 model I power 
stand such as Channel 1 for left and Channel 2 for right.
 Do not use a 1/8-inch stereo (F) to ¼-inch stereo (M) adapter when connecting  
portable devices to a channel on the L1 model I power stand.
 Disable any extended bass or EQ features when using portable CD or MP3 players. 
Problem What to do
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