L1® Model II: Difference between revisions - Bose Portable PA Knowledge

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Introduced March 29, 2007..

Introduced March 29, 2007

Discontinued: Jan 2021

The {{Model II}} is [[RoHS]] compliant for release in Europe.

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|-

| valign="top" | ~~{{Different Models|OrangeLabelLink={{PAGENAME}}#Orange L1 Markers}}~~

| valign="top" |

== Documentation ==

*FAQs

**[[{{PAGENAME}}#FAQs|Unofficial FAQs]]

*[[{{PAGENAME}}#FAQs|Unofficial FAQs]]

**[[~~L1® Model II / FAQ~~|~~Official FAQs~~]]

== Downloads ==

{{T1 Downloads}} [[Image:L1ModelIIPieces.jpg|right|82px]]

=== Firmware ===

How to tell if your Model II supports the [[B2|B2 Bass Module]]

~~== Downloads ==~~

* [[Model II / Versions from Serial Number]]

* [[Model II / Versions from T1®]]

~~{{T1 Downloads}}~~ [[~~Image:L1ModelIIPieces.jpg~~|~~right|82px~~]]

If you need it - see [[L1®_Model_II_Power_Stand_Firmware_Updates|Model II Power Stand Firmware Updates]]

== Different Models ==

|}

== Input/Output Panel==

=== Overview ===

<!--

[[Image:ModelIIInputPanel.png]]

-->

== ToneMatch® Port ==

=== ToneMatch® Port ===

~~{{:ToneMatch® Port}}~~

~~== Analog Input ==~~

For connecting the {{T1}} to the {{Model II}}.

~~[[Image:ModelIIInputPanelAnalog~~.~~png|right|L1® Model II Input Panel]]~~

The port sends electrical power to the T1 and accepts digital audio from the T1.

~~The Analog input is a ¼ inch balanced input jack. There is a trim control.~~

~~=== Gain Staging ===~~

[[Image:ModelIIToneMatchPort.png|ToneMatch® Port on the Model II]]

~~Q: What is the proper method for setting the gain on a Model II power stand when connected to an analog source?~~

Close up

A: ~~While playing your instrument or audio source as loudly as you would in performance, adjust the trim level~~ on the ~~power stand until you see the LED go from yellow to red. Then back the trim level off until the signal LED is predominantly yellow with brief peaks into red.~~

[[Image:ModelIIToneMatchPortCloseUp.png|ToneMatch® Port on the Model II close up]]

~~=== Stereo Source to Power Stand Analog Input? ===~~

The connecting cable has a male Ethercon connection at each end that looks like this.

[[Image:EtherconMale.jpg]]

For details about the cable see: [[T1_ToneMatch%C2%AE Audio Engine#Cables|T1® Cables]]

=== Analog Input ===

The Analog input is a ¼ inch balanced input jack. Do not connect a stereo source to this input.

[[Image:Model 1S Analog Input Detail.png]]

==== Analog input trim (volume, or gain) control ====

There is a trim control for the analog input. Turn this off (fully counter-clockwise) unless you have something connected to the Analog Input.

[[Image:Model II Analog Input Trim.png]]

[[Image:Model II Analog Input Level Green.png|Model 1S Analog Input]]

==== Can a stereo signal be used with the analog input? ====

~~Q: Can I run a stereo signal with a~~ ¼ inch Tip-Ring-Sleeve ~~connection to~~ the {{Model II~~}} Analog Input?~~

'''A ¼ inch Tip-Ring-Sleeve connector carrying a stereo signal should not be used with the analog input on the Model II.'''

~~A: This~~ is not ~~recommended, and may result in very little sound~~.

Even though a ¼ inch Tip-Ring-Sleeve connector can carry a stereo signal this is not how this physical connection is used on the {{PAGENAME}} Power Stand.

~~MikeZ-at-Bose <ref>[http://bose.infopop.cc/eve/forums/~~a~~/tpc/f/7521050644/m/4671057594?r=8921042794#8921042794 MikeZ-at~~-~~Bose talks about L1®~~ Model II ~~and Analog mixers]</ref>~~

The analog input on the Model II is balanced, and will therefore subtract the Left and Right signals on a stereo cable and you will hear an L-R (Left minus Right) signal in the Model II.

~~:A bit more clarification -~~ if you ~~plug~~ a ~~true~~ stereo ~~TRS into a model II analog input you'll actually get VERY little sound~~.

You cannot 'get through the gig' this way if you are a DJ or if you need to run prerecorded music or have stereo inputs.

:Since the analog input is balanced, it actually will subtract the Left from the Right (this is how balanced inputs have less noise...I could explain more if anyone is interested). For many recordings, this ends up being very little sound.

[[Image:TRSfromStereoRCAModelII.png|600px]]

:~~Just wanted to clarify - you cannot 'get through the gig' this way if you're a DJ or needing to run prerecorded music~~.

[[Image:TRSfromStereo14ModelII.png|600px]]

[[Image:18stereoTo14stereoModelII.png|600px]]

</~~section~~>

==== Using a Mixer ====

=== Analog Input for Second {{T1}} ===

~~The~~ {{Model II}} ~~will support two {{T1}}s. See [[T1 ToneMatch™ Audio Engine / Connections to Model II]] for details.~~

== Preventative Care ==

== Start Up / Cycle Time ==

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=== Fan Noise ===

=== Fan runs constantly ===

=== Fan prior to October 2014 ===

Q: The fan in the Power Stand comes on when I strike a chord on my Guitar. Is this normal? A: Your unit is functioning properly - no problem.

The fan in the Model II Power Stand comes on when the input signal level goes over a certain limit, regardless of what the internal temperature of the unit is. That way, the unit never gets too hot to where a fan needs to be on constantly.

:The fan in the Model II Power Stand comes on when the input signal level goes over a certain limit, regardless of what the internal temperature of the unit is. That way, the unit never gets too hot to where a fan needs to be on constantly. Whatever you do, please don't cover up the fan port.<ref>MikeZ-at-Bose [http://bose.infopop.cc/eve/forums?a=tpc&f=7521050644&m=8071027174&r=7091047174#7091047174 Model II Fan Noise]</ref>

There is a Firmware Update that addresses the fan behaviour. See: [[L1® Model II Power Stand Firmware Updates#Fan_Behavior|Model II Power Stand Firmware Updates - Fan behaviour]]

== Noise During Shutdown ==

Q: When I turn off the Model II there is sound like flatulence. Is this normal?

A:

:Over a year ago we implemented an improvement which allowed the system to better withstand extreme low voltage conditions caused by brown outs etc. Units produced prior to this change were quieter during the power down sequence.

~~Whatever~~ you ~~do, please don't cover up~~ the ~~fan port.<ref>MikeZ-at-Bose [http://bose.infopop~~.~~cc/eve/forums?a=tpc&f=7521050644&m=8071027174&r=7091047174#7091047174 Model II Fan Noise]</ref>~~

:Note: This noise is only present when the system is being turned off following use. For instances where this subtle noise is objectionable you may remove the Cylindrical Radiator loudspeaker and disconnect the Speakon cable of the B1 before powering down the system.

~~There~~ is ~~a Firmware Update~~ that ~~addresses the fan behaviour~~. ~~See~~: ~~[[L1®~~ Model II ~~Power Stand~~ Firmware ~~Updates#Fan_Behavior]]~~

:For anyone that is experiencing noise during power down we want to assure you that your system is working properly. Also, there is no reason for customers with older power stands to be concerned with upgrading as any potential issues would have surfaced by now. <ref>Neil-at-Bose [http://bose.infopop.cc/eve/forums/a/tpc/f/76010377/m/948107242?r=207101852#207101852 Modell II Shutdown Noises August 3, 2009]</ref>

== B2 support ==

== Height ==

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[[Image:ModelIIConnections.png|thumb|L1® Model II Input Panel]]

~~<br>~~

*Analog input, trim control and signal/clip LED

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If you want to record using USB without using the {{L1 CR}} or {{B1}} ...

You can certainly run the L1 with all, some, or none of the speakers connected. With no speakers connected it will happily serve as a big power supply for the T1. You are in no way risking damage to the unit by doing this.<ref>MikeZ-at-Bose talks about [http://bose.infopop.cc/eve/forums?a=tpc&~~amp;amp;amp;amp;amp;~~f=3976055944&~~amp;amp;amp;amp;amp;~~m=2261013484&~~amp;amp;amp;amp;amp;~~r=7911053484#7911053484 Using the L1™ Model II Power Stand without any speakers attached]</ref>

You can certainly run the L1 with all, some, or none of the speakers connected. With no speakers connected it will happily serve as a big power supply for the T1. You are in no way risking damage to the unit by doing this.<ref>MikeZ-at-Bose talks about [http://bose.infopop.cc/eve/forums?a=tpc&f=3976055944&m=2261013484&r=7911053484#7911053484 Using the L1™ Model II Power Stand without any speakers attached]</ref>

~~<br>~~

== Articulated Array® ==

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{{:Articulated Array}} <!--[[Image:ModelIIArticulatedArray.png|L1™ Model II Articulated Array®]]

-->

== Lower Section Only ==

== Identifying this Model ==

[[Image:ModelIIBassOutputs.png|thumb|Bass Line Out]]

*Retractable legs

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*Light weight (23.7 lbs (10.7 kg)

== ~~Compatibility~~ ==

== Rubber Feet ==

If you need to replace the rubber feet.

~~Compatible with~~

*L1 Model II Cylindrical Radiator® loudspeaker

==Acoustical Output==

*[[T1 ToneMatch™ Audio Engine|T1 ToneMatch™ audio engine]]

*{{B1}}

*{{A1}}

== Compatibility with Other Members of the L1® Family of Products ==

== Related Documents ==

~~<br>~~

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~~<!--~~

== Mechanical Specifications ==

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*L1 Model II Cylindrical Radiator® loudspeaker top:

**~~43 1/2''~~H x ~~3 1/2''~~W x 4''D (1.~~1 m~~ x 9.0 cm x 10.5 cm~~)''~~

**Top array 39.63” H x 4.15” W x 4.13” D (100.6 cm x 10.6 cm x 10.5 cm

**16.3 lbs (7.4 kg)

*L1 Model II Cylindrical Radiator® loudspeaker bottom:

**43 ~~1/2''~~H x ~~3 1/2''~~W x 4''D (1.~~1 m~~ x 9.0 cm x 10.5 cm)''

**Bottom array 43.5” H x 4.15” W x 4.13” D (111.0 mm x 9.0 cm x 10.5 cm)

**17.4 lbs (7.9 kg)

*~~L1™~~ Model II power stand:

*L1 Model II power stand:

**5''H x 10''W x 27''D (12.8 cm x 26.2 cm x 69.2 cm)''

**23.7 lbs (10.7 kg)

~~<br>~~

=== B1 Bass module ===

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**15''H x 10 1/4''W x 17 3/4''D (38.0 cm x 26.0 cm x 45.0 cm)''

**25.1 lbs (11.4 kg)

=== Total System Weight ===

=== T1 ToneMatch™ audio engine ===

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**Neutrik NL4 bass module out

~~<br>~~

== What's in the Box ==

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**Carrying bag

~~<br>~~

~~-->~~

----

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[[Category:Model_II]]

@@ Line 6: / Line 6: @@
 {{L1® Model II}}
-Introduced March 29, 2007..
+Introduced March 29, 2007
+Discontinued: Jan 2021
 The {{Model II}} is [[RoHS]] compliant for release in Europe.
@@ Line 12: / Line 14: @@
 |-
-| valign="top" | {{Different Models|OrangeLabelLink={{PAGENAME}}#Orange L1 Markers}}
+| valign="top" |
 == Documentation  ==
-*FAQs
+{{:L1® Model II Documentation}}
-**[[{{PAGENAME}}#FAQs|Unofficial FAQs]]
+*[[{{PAGENAME}}#FAQs|Unofficial FAQs]]
-**[[L1® Model II / FAQ|Official FAQs]]
+== Downloads  ==
+{{T1 Downloads}} [[Image:L1ModelIIPieces.jpg|right|82px]]
+=== Firmware ===
+How to tell if your Model II supports the [[B2|B2 Bass Module]]
-== Downloads  ==
+* [[Model II / Versions from Serial Number]]
+* [[Model II / Versions from T1®]]
-{{T1 Downloads}} [[Image:L1ModelIIPieces.jpg|right|82px]]
+If you need it - see [[L1®_Model_II_Power_Stand_Firmware_Updates|Model II Power Stand Firmware Updates]]
+== Different Models ==
+{{Different Models}}
 |}
 == Input/Output Panel==
+=== Overview ===
+<!--
 [[Image:ModelIIInputPanel.png]]
+-->
+{{Model II Input Output Panel}}
-== ToneMatch® Port ==
+=== ToneMatch® Port ===
-{{:ToneMatch® Port}}
-== Analog Input  ==
+For connecting the {{T1}} to the {{Model II}}.
-[[Image:ModelIIInputPanelAnalog.png|right|L1® Model II Input Panel]]
+The port sends electrical power to the T1 and accepts digital audio from the T1.
-The Analog input is a ¼ inch balanced input jack. There is a trim control.
-=== Gain Staging  ===
+[[Image:ModelIIToneMatchPort.png|ToneMatch® Port on the Model II]]
-Q: What is the proper method for setting the gain on a Model II power stand when connected to an analog source?
+Close up
-A: While playing your instrument or audio source as loudly as you would in performance, adjust the trim level on the power stand until you see the LED go from yellow to red. Then back the trim level off until the signal LED is predominantly yellow with brief peaks into red.
+[[Image:ModelIIToneMatchPortCloseUp.png|ToneMatch® Port on the Model II close up]]
-=== Stereo Source to Power Stand Analog Input?  ===
+The connecting cable has a male Ethercon connection at each end that looks like this.
+[[Image:EtherconMale.jpg]]
+For details about the cable see: [[T1_ToneMatch%C2%AE Audio Engine#Cables|T1® Cables]]
+<section begin=AnalogInput />
+=== Analog Input  ===
+The Analog input is a ¼ inch balanced input jack. Do not connect a stereo source to this input.
+[[Image:Model 1S Analog Input Detail.png]]
+==== Analog input trim (volume, or gain) control  ====
+There is a trim control for the analog input. Turn this off (fully counter-clockwise) unless you have something connected to the Analog Input.
+[[Image:Model II Analog Input Trim.png]]
+{{Analog Input Trim}}
+[[Image:Model II Analog Input Level Green.png|Model 1S Analog Input]]
+<section end=AnalogInput />
+==== Can a stereo signal be used with the analog input?  ====
 <section begin="Stereo Source to Power Stand Analog Input" />
-Q: Can I run a stereo signal with a ¼ inch Tip-Ring-Sleeve connection to the {{Model II}} Analog Input?
+'''A ¼ inch Tip-Ring-Sleeve connector carrying a stereo signal should not be used with the analog input on the Model II.'''
-A: This is not recommended, and may result in very little sound.
+Even though a ¼ inch Tip-Ring-Sleeve connector can carry a stereo signal this is not how this physical connection is used on the {{PAGENAME}} Power Stand.
-MikeZ-at-Bose <ref>[http://bose.infopop.cc/eve/forums/a/tpc/f/7521050644/m/4671057594?r=8921042794#8921042794 MikeZ-at-Bose talks about L1® Model II and Analog mixers]</ref>
+The analog input on the Model II is balanced, and will therefore subtract the Left and Right signals on a stereo cable and you will hear an L-R (Left minus Right) signal in the Model II.
-:A bit more clarification - if you plug a true stereo TRS into a model II analog input you'll actually get VERY little sound.
+You cannot 'get through the gig' this way if you are a DJ or if you need to run prerecorded music or have stereo inputs.
-:Since the analog input is balanced, it actually will subtract the Left from the Right (this is how balanced inputs have less noise...I could explain more if anyone is interested). For many recordings, this ends up being very little sound.
+[[Image:TRSfromStereoRCAModelII.png|600px]]
-:Just wanted to clarify - you cannot 'get through the gig' this way if you're a DJ or needing to run prerecorded music.
+[[Image:TRSfromStereo14ModelII.png|600px]]
-<section end="Stereo Source to Power Stand Analog Input">
+[[Image:18stereoTo14stereoModelII.png|600px]]
-</section>
+==== Using a Mixer ====
+{{:L1® Model II with Mixer to Analog Input}}
+<section end="Stereo Source to Power Stand Analog Input" />
 === Analog Input for Second {{T1}}  ===
+{{:T1 ToneMatch® Audio Engine / Connections to Model II}}
-The {{Model II}} will support two {{T1}}s. See [[T1 ToneMatch™ Audio Engine / Connections to Model II]] for details.
+== Preventative Care ==
+{{:L1® Model II / Preventative Care}}
 == Start Up / Cycle Time  ==
@@ Line 76: / Line 116: @@
 === Fan Noise  ===
+<section begin=heat/>
+=== Fan runs constantly ===
+{{Template:L1 Model II Firmware 1.5 Fan Update}}
+=== Fan prior to October 2014 ===
 Q: The fan in the Power Stand comes on when I strike a chord on my Guitar. Is this normal? A: Your unit is functioning properly - no problem.
-The fan in the Model II Power Stand comes on when the input signal level goes over a certain limit, regardless of what the internal temperature of the unit is. That way, the unit never gets too hot to where a fan needs to be on constantly.
+:The fan in the Model II Power Stand comes on when the input signal level goes over a certain limit, regardless of what the internal temperature of the unit is. That way, the unit never gets too hot to where a fan needs to be on constantly. Whatever you do, please don't cover up the fan port.<ref>MikeZ-at-Bose [http://bose.infopop.cc/eve/forums?a=tpc&f=7521050644&m=8071027174&r=7091047174#7091047174 Model II Fan Noise]</ref>
+There is a Firmware Update that addresses the fan behaviour. See: [[L1® Model II Power Stand Firmware Updates#Fan_Behavior|Model II Power Stand Firmware Updates - Fan behaviour]]
+<section end=heat/>
+== Noise During Shutdown ==
+Q: When I turn off the Model II there is sound like flatulence. Is this normal?
+A:
+:Over a year ago we implemented an improvement which allowed the system to better withstand extreme low voltage conditions caused by brown outs etc. Units produced prior to this change were quieter during the power down sequence.
-Whatever you do, please don't cover up the fan port.<ref>MikeZ-at-Bose [http://bose.infopop.cc/eve/forums?a=tpc&f=7521050644&m=8071027174&r=7091047174#7091047174 Model II Fan Noise]</ref>
+:Note: This noise is only present when the system is being turned off following use. For instances where this subtle noise is objectionable you may remove the Cylindrical Radiator loudspeaker and disconnect the Speakon cable of the B1 before powering down the system.
-There is a Firmware Update that addresses the fan behaviour. See: [[L1® Model II Power Stand Firmware Updates#Fan_Behavior]]
+:For anyone that is experiencing noise during power down we want to assure you that your system is working properly. Also, there is no reason for customers with older power stands to be concerned with upgrading as any potential issues would have surfaced by now. <ref>Neil-at-Bose [http://bose.infopop.cc/eve/forums/a/tpc/f/76010377/m/948107242?r=207101852#207101852 Modell II Shutdown Noises August 3, 2009]</ref>
+== B2 support ==
+{{L1 Model II Firmware 1.4 B2 Support}}
 == Height  ==
@@ Line 94: / Line 152: @@
 [[Image:ModelIIConnections.png|thumb|L1® Model II Input Panel]]
-<br>
 *Analog input, trim control and signal/clip LED
@@ Line 117: / Line 173: @@
 If you want to record using USB without using the {{L1 CR}} or {{B1}} ...
-You can certainly run the L1 with all, some, or none of the speakers connected. With no speakers connected it will happily serve as a big power supply for the T1. You are in no way risking damage to the unit by doing this.<ref>MikeZ-at-Bose talks about [http://bose.infopop.cc/eve/forums?a=tpc&amp;amp;amp;amp;amp;f=3976055944&amp;amp;amp;amp;amp;m=2261013484&amp;amp;amp;amp;amp;r=7911053484#7911053484 Using the L1™ Model II Power Stand without any speakers attached]</ref>
+You can certainly run the L1 with all, some, or none of the speakers connected. With no speakers connected it will happily serve as a big power supply for the T1. You are in no way risking damage to the unit by doing this.<ref>MikeZ-at-Bose talks about [http://bose.infopop.cc/eve/forums?a=tpc&f=3976055944&m=2261013484&r=7911053484#7911053484 Using the L1™ Model II Power Stand without any speakers attached]</ref>
-{{:L1™ Model II Power Stand/Bass Line Out}}
+{{:L1® Model II Power Stand/Bass Line Out}}
-<br>
 == Articulated Array®  ==
@@ Line 127: / Line 181: @@
 {{:Articulated Array}} <!--[[Image:ModelIIArticulatedArray.png|L1&trade; Model II Articulated Array&reg;]]
 -->
+== Lower Section Only ==
+{{#lst:L1 Cylindrical Radiator® loudspeaker|Lower Half Only}}
 == Identifying this Model  ==
+[[Image:ModelIIBassOutputs.png|thumb|Bass Line Out]]
 *Retractable legs
@@ Line 136: / Line 195: @@
 *Light weight (23.7 lbs (10.7 kg)
-== Compatibility  ==
+== Rubber Feet ==
+If you need to replace the rubber feet.
-Compatible with
+{{:Rubber Feet for L1®}}
-*L1 Model II Cylindrical Radiator® loudspeaker
+==Acoustical Output==
-*[[T1 ToneMatch™ Audio Engine|T1 ToneMatch™ audio engine]]
-*{{B1}}
+{{L1® Classic, Model I, and Model II Acoustical Output}}
-*{{A1}}
+== Compatibility with Other Members of the L1® Family of Products ==
+{{L1 Compatibility}}
 == Related Documents  ==
-{{:L1™ Model II Documentation}}
+{{:L1® Model II Documentation}}
-<br>
@@ Line 156: / Line 217: @@
 {{:T1® and Model II Design Team}}
-<!--
 == Mechanical Specifications  ==
@@ Line 162: / Line 223: @@
 *L1 Model II Cylindrical Radiator® loudspeaker top:
-**43 1/2''H x 3 1/2''W x 4''D (1.1 m x 9.0 cm x 10.5 cm)''
+**Top array 39.63” H x 4.15” W x 4.13” D  (100.6 cm x 10.6 cm x 10.5 cm
 **16.3 lbs (7.4 kg)
 *L1 Model II Cylindrical Radiator® loudspeaker bottom:
-**43 1/2''H x 3 1/2''W x 4''D (1.1 m x 9.0 cm x 10.5 cm)''
+**Bottom array  43.5” H x 4.15” W x 4.13” D (111.0 mm x 9.0 cm x 10.5 cm)
 **17.4 lbs (7.9 kg)
-*L1™ Model II power stand:
+*L1 Model II power stand:
 **5''H x 10''W x 27''D (12.8 cm x 26.2 cm x 69.2 cm)''
 **23.7 lbs (10.7 kg)
-<br>
 === B1 Bass module  ===
@@ Line 178: / Line 238: @@
 **15''H x 10 1/4''W x 17 3/4''D (38.0 cm x 26.0 cm x 45.0 cm)''
 **25.1 lbs (11.4 kg)
+=== Total System Weight ===
+{{#lst:L1® Family Comparisons|Model II Weight}}
 === T1 ToneMatch™ audio engine  ===
@@ Line 195: / Line 258: @@
 **Neutrik NL4 bass module out
-<br>
 == What's in the Box  ==
@@ Line 208: / Line 270: @@
 **Carrying bag
-<br>
 {{Model II icon}}
--->
 ----
@@ Line 218: / Line 279: @@
 [[Category:Model_II]]
+{{Model II Structured Data}}