B1 Bass Module: Difference between revisions
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<td valign="top" width="300">__TOC__</td> | |||
<td valign="top">{{B1 Bose Link}} | |||
* Portable, lightweight bass module | |||
* Designed to provide deep, balanced bass for Model 1S and Model II systems | |||
* Features two 5.25" high-excursion drivers built into a rugged enclosure | |||
* Interlocking end caps allow up to four B1 modules to be stacked together | |||
* Includes a slip cover and NL4 cable | |||
Technical Specifications<ref>[http://worldwide.bose.com/pro/en_us/web/l1_model2/page.html?term=bass_modules&view=general Bass Modules]</ref> | |||
* Weight: 26.6 lb (12.1 kg) | |||
* Impedance: 8 ohms | |||
* Frequency Response: (-3dB) 40Hz – 200Hz | |||
* Frequency Range: (-10dB) 35Hz – 220Hz | |||
== Documentation == | |||
[[Media:B1 Bass Module Installation Guide.pdf|B1 Bass Module Installation Guide]] | |||
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== Use the B1 Cables == | |||
{{B1 Cable Warning}} | |||
== Two B1s == | == Two B1s == | ||
<section begin=TwoB1s /> | |||
{{Classic icon}}{{Model I icon}}{{Model II icon}} The Classic / Model I / Model II output for the B1s is | {{Classic icon}}{{Model I icon}}{{Model II icon}} The Classic / Model I / Model II / Model 1S output for the B1s is | ||
*125 Watts into 8 ohms (single B1) | *125 Watts into 8 ohms (single B1) | ||
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*you look only at relatively low frequencies | *you look only at relatively low frequencies | ||
Then you get | Then you get +6 dB more sound pressure level (SPL) from 2 as compared to one. | ||
Our B1 is a good example | Our B1 is a good example of that: | ||
*2 B1s give 6 dB more than one. | *2 B1s give 6 dB more than one. | ||
*You gain 3 dB by | *You gain 3 dB by simply doubling the electrical power (250 Watt for two, 125 Watt for one). | ||
*The other 3 dB | *The other 3 dB is gained by doubling of acoustic volume, cone area and close coupling between the speakers. | ||
To get the same SPL (as 2 B1s) from a single B1 you would actually have to hit it with four times the power (500 Watt). | To get the same SPL (as 2 B1s) from a single B1 you would actually have to hit it with four times the power (500 Watt). | ||
Source: [http://bose.infopop.cc/eve/forums/a/tpc/f/8766055944/m/572103376?r=259107776#259107776 How much power...] discussion in the {{forum}} | Source: [http://bose.infopop.cc/eve/forums/a/tpc/f/8766055944/m/572103376?r=259107776#259107776 How much power...] discussion in the {{forum}} | ||
;System voicing | |||
:Hilmar-at-Bose | |||
<blockquote> | |||
::We have carefully voiced the system to have the "best" spectral balance. Ideally, this spectral should not change, no matter how many bass modules are attached. More bass modules simply allow you to play louder and have more headroom. Adding the second B1 will not change the spectral balance but play louder. | |||
::The Power Stand senses how many B1 bass modules are attached (0<ref>not applicable to Model II or Model 1S - both must use at least one Bass module.</ref>, 1 or 2) and adjusts the internal EQ accordingly. In the case of attaching the second B1 the Power Stand will drop the bass level by about 6 dB so that the overall acoustic output stays the same. | |||
::You can actually notice the change: When you attach (or detach) the second B1, the systems mutes for about a second, adjust its EQ and then comes back again. That's perfectly safe to do while the system is playing. | |||
:Source: [http://bose.infopop.cc/eve/forums/a/tpc/f/1506041054/m/251104076?r=406104076#406104076 Hilmar-at-Bose replies to Single or Double Bass...] discussion in the {{forum}} | |||
</blockquote> | |||
<section end=TwoB1s /> | |||
== Keep the B1s Together == | == Keep the B1s Together == | ||
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[[Image:B1Stack4.png]] | [[Image:B1Stack4.png]] | ||
== Using More Than Two B1s with a Power Stand == | |||
{{:Using More Than Two B1s with a Power Stand}} | |||
== Rotate the Logos == | == Rotate the Logos == | ||
{{:B1 Rotate the Logos}} | |||
== How Low does the B1 Go? == | == How Low does the B1 Go? == | ||
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When I read this, I had to go and look very closely to find the port. It's easier to figure out that when the B1 is on it's side, port side up is same as (on the back) connection panel down. | When I read this, I had to go and look very closely to find the port. It's easier to figure out that when the B1 is on it's side, port side up is same as (on the back) connection panel down. | ||
== Check the Cables == | == Check the Cables == | ||
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{{:B1 Cable Connections}} | {{:B1 Cable Connections}} | ||
== Longer cables for B1s == | == Longer cables for B1s and B2s == | ||
<section begin=LongerCables /> | <section begin=LongerCables /> | ||
The Bose B1 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. | The Bose B1/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 | A good source for the correct cables is | ||
http://www.audiopile.net | [http://www.audiopile.net/NL413GA Audiopile.net NL413GA | NL4 Speakon equipped 13/4 Speaker Cable] | ||
;Note: If you have an L1 Model 1S or L1 Model II - do NOT add a 10k resistor to the cable. That's only required with an L1® Model I or L1® Classic and ONLY if you are using a B2. It is not required with B1 bass modules. | |||
Consider getting 90-degree ends like this: | |||
[[File:NL4FRX.jpg|link=http://www.audiopile.net/NL4FRX|Image=NL4 400w.jpg|200px|NL-4 speaker cable]] | |||
— Click image for details — | — Click image for details — | ||
<!-- | <!-- | ||
[http://www.audiopile.net/products/Speaker_Cables/NL-4_speaker_cable/NL413_dropdown_cutsheet_2. | [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. | 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. | ||
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You can order this through [[Support]]. | You can order this through [[Support]]. | ||
== Mechanical Specifications == | |||
15"H x 10.25"W x 17.75"D ( 38 cm x 26 cm x 45 cm ) | |||
25.1 lbs (11.4 kg) Source: [[Media:B1 Installation Guide International 2006.pdf|B1 Installation Guide International 2006.pdf]] | |||
8 ohms | |||
== Compatibility with Other Members of the L1® Family of Products == | |||
{{L1 Compatibility}} | |||
---- | ---- | ||
<references /> | <references /> | ||
[[Category:Bass]] [[Category:B1_Bass_Module]] [[Category: | [[Category:Bass]] | ||
[[Category:B1_Bass_Module]] | |||
[[Category:L1® System]] | |||