View source for B2

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<td valign="top">{{B2 Bose Link}}
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== Documentation ==
* [[Media:AM356142 00 B2 OG 3L.pdf|B2 Owners Guide]]
* [[{{PAGENAME}}#Mechanical_Specifications|Mechanical Specifications]]
* [[{{PAGENAME}}#Electrical_Specifications|Electrical Specifications]]

* [[Is the B2 Bass Module Compatible with the L1® Classic or Model I]] 

<!--* [[Media:tds_l1_model2.pdf|Technical Data]] B2 information is at the end.-->
== General Description==
[[Image:b2_bass_module_front.jpg|150px|right]]
<ul>
<li>High-performance flexible bass module</li>
<li>Designed to provide deep, impactful bass for higher SPL live music and DJ applications</li>
<li>Features two 10" high-excursion woofers mounted in a rugged enclosure</li>
<li>Features a three-position sensing switch, allowing bass output to be adjusted for different applications</li>
<li>Interlocking end caps allow up to two B2 modules to be stacked together</li>
<li>Includes a slip cover and NL4 cable</li>
</ul>

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== Model II Firmware Update ==
In order to get the full use of the B2 with a {{Model II}} you will need to download and install the latest [[L1® Model II Power Stand Firmware Updates]].

[http://www.bose.com/assets/downloads/musicians/tonematch/bose_L1M2_firmware_ver_1.4.zip Firmware 1.4]

This includes a Firmware Update (must be installed first) and a System EQ update (installed second).

[[Image:Model II Firmware 1.4 Instructions.png]]


== B2 Switching ==
<section begin=B2 Switching />
[[Image:B2RearPanel.png|right]]

The B2 bass module includes a switch allowing you to select the appropriate level of bass
output for your application.

There are three settings:
<table>
<tr><th style="width:100px">Switch Position</th><th>Application</th></tr>
<tr><td>'''+'''</td><td>Bass voicing designed for DJ/Music playback applications</td></tr>
<tr><td>'''Normal'''</td><td>Bass voicing ideal for bass guitar or live sound application when mic'ing a kick drum</td></tr>
<tr><td>'''-'''</td><td>Bass voicing which is perfect for acoustic guitar and vocal</td></tr>
</table>
<section end=B2 Switching />

'''Attention L1 Model II users''': In order to take advantage of the B2 rear panel bass level
features you must upgrade your power stand firmware to version 1.4 or higher. If your power
stand firmware is not current, the rear panel switch must be in the Normal position. + or -
switch positions will not work. 

For the latest firmware see: [[L1® Model II Power Stand Firmware Updates]] (or see section immediately below).

'''Attention L1 model I and Classic users''': When using the B2 with the L1 model I or
Classic systems the rear panel switch must be in the Normal position. + or - switch positions
will not work.

See: [[Is the B2 Bass Module Compatible with the L1® Classic or Model I]]

== Rotate the Logos  ==
{{:B2 Rotate the Logos}}

== Use the B2 Cables ==

{{B1 Cable Warning}}


=== Stacking (up to two high)  ===

From page 3 of the [[Image:AM356142_00_B2_OG_3L.pdf|B2 Owners Guide]] 

[[Image:B2Stack2.png]]

== Using More Than One B2 with a Power Stand ==
The L1® Power Stands can support one B2. {{Classic}}, {{Model I}}, {{Model 1S}}, {{Model II}}

To power an additional B2 an {{A1}} is required. {{Classic}}, {{Model I}}, {{Model II}. 

Note: The {{Model 1S}} does not support the {{A1}} or the use of a second B2.


== B2 with non {{L1 nl}} loudspeaker systems<br>  ==

{{:B2 Bass Module as Subwoofer}}<br> 


== Check the Cables  ==

[[Image:B1Cable.gif|right|B1/B2 Cable]] You may want to double check your Blue B1/B2 cables. 

{{:B1 Cable Connections}}

== B2 Cables ==
The cables that ship with the new B2 are 40 inches long. That is 20 inches shorter than the cables that shipped with the B1 (60 inches). Except for length the cables are identical.

[[Image:B2B1Cables.png]]


== Longer cables for B2s  ==
<section begin=LongerCables />
The Bose B2 requires a NL4 connector with all 4 pins connected (that's why we call it 4-wire cable). Unfortunately, the Speakon connector comes in three different flavors, NL2 (2-pins), NL4 (4 pins), and NL8 (8-pins). Most salespeople are not aware of the differences. 

A good source for the correct cables is 

[http://www.audiopile.net/products/BOSE_L1/BOSE_L1_Products.shtml http://www.audiopile.net] 

for example 

{{#Click:http://www.audiopile.net/products/Speaker_Cables/NL-4_speaker_cable/NL413_dropdown_cutsheet_2.shtml|Image:NL4 400w.jpg|200px|NL-4 speaker cable}}

&mdash; Click image for details &mdash; 
<!--
[http://www.audiopile.net/products/Speaker_Cables/NL-4_speaker_cable/NL413_dropdown_cutsheet_2.shtml NL413GA]-->

If you call Mark and tell him you want the cable for the Bose B1, you will get one that is made to our specifications. You can also any custom length cable at a very reasonable price. 

:Hilmar-at-Bose<ref>[http://bose.infopop.cc/eve/forums/a/tpc/f/3976055944/m/2941001112?r=8521011112#8521011112 B1 Cables]</ref>

<section end=LongerCables />

== Straighten the B1 Cables  ==

Here's a tip from [http://bose.infopop.cc/eve/forums?a=tpc&f=867107664&m=6391041315&r=6391041315#6391041315 Nick from New Zealand] 

I've seen it mentioned here a few times - those wriggly uncooperative B1 leads when they're new, and no posts about how to cure the problem. 

Here's 3 suggestions: 

1. Taking care to hold the speakon connectors, soak the rest of the cable into a bowl of very warm/hot (not boiling) water. DO NOT GET WATER INSIDE THE SPEAKON PLUGS. This will soften the cable up, lie the cable out flat and straight to dry. This will give it a "new memory" of sorts and be easier to maintain in the future. 

2. Wrap the cable or lie it flat and straight and leave it on the footpath or driveway in the sun. Shouldn't take long. 

3. Leave them wrapped in your car/van on a hot summer day. This is usually how I unintentionally fix all of my cable messes. 


== Mechanical Specifications ==
Dimensions: 23.4''H x 13.31''W x 18.9''D (59.4 cm x 33.8 cm x 48 cm)

Weight: 45 lb (20.41 kg)



[[Image:B2Mechanical.png]]

== Electrical Specifications ==

* Impedance: 4 ohms

* When used with Model 1S or Model II
**Frequency Response (+/-3 dB) 40Hz - 200 Hz
**Frequency Range (-10 dB) 32 Hz - 200 Hz


* When used with Model / Classic
**Frequency Response (+/-3 dB) 40 Hz - 180 Hz
**Frequency Range (-10 dB) 32 Hz - 180 Hz

Source <ref> Model II Power Stand Owners Manual </ref>

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

----

<references /> 

[[Category:Bass]] 
[[Category:B2_Bass_Module]] 
[[Category:L1® System]]



{{B2 Structured Data}}