Difference between pages "Phantom Power" and "S1 Pro System with B1 Bass Module"

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m (Expanded definition, phantom power on external system)
 
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== Phantom Power Definition ==
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{{S1 icon}} {{B1 icon}}
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Question:
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;Question: Can you use the {{B1}} with the {{S1}}
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What is a "phantom powered" microphone? Does that mean that the microphone draws its power from a remote source?
 
  
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Answer:
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;Answer
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Phantom power is used with condenser microphones. It is called phantom power because there is no obvious external power supply for the condenser mic; the power supply is invisible and therefore a "phantom." The mixer sends voltage up the same wires that the audio is traveling down. Thus, the microphone is receiving the power remotely from the mixer.
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:The B1 bass module is only compatible with the full-size L1 systems (L1 Classic, L1 Model 1S, L1 Model II). The B1 bass module is powered by a dedicated amplifier that is built into the power stand of those L1 systems.
  
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Phantom power is a DC voltage (usually 12-48 volts) used to power the electronics of a condenser microphone. For some (non-electret) condensers it may also be used to provide the polarizing voltage for the element itself. This voltage is supplied through the microphone cable by a mixer equipped with phantom power or by some type of in-line external source. The voltage is equal on Pin 2 and Pin 3 of a typical balanced, XLR-type connector. For a 48 volt phantom source, for example, Pin 2 is 48 VDC and Pin 3 is 48 VDC, both with respect to Pin 1 which is ground (shield).
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:The S1 Pro system is engineered to deliver great balanced sound without a separate bass module. It doesn't have an extra amplifier built-in for a B1.
  
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Because the voltage is exactly the same on Pin 2 and Pin 3, phantom power will have no effect on balanced dynamic microphones: no current will flow since there is no voltage difference across the output. In fact, phantom power supplies have current limiting which will prevent damage to a dynamic microphone even if it is shorted or miswired. In general, balanced dynamic microphones can be connected to phantom powered mixer inputs with no problem.
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:As a matter of interest, the B1 bass module has two 5.25 inch drivers. The S1 Pro has one 6 inch driver.
  
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[[File:Phantom.gif]]
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;Question
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:Can I use the {{A1}} to power the {{B1}}?
  
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Source: [http://www.shure.com/americas/support/find-an-answer/what-is-phantom-power Shure.com]
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;Answer
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:The {{S1}} Line Out is full range. Using this to provide a full range signal the {{A1}} to power the {{B1}}. That's not optimal because you will have a frequency overlap between the {{S1}} and {{B1}}. The {{B1}} was not designed to operate as a full-range loudspeaker.
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:You would need a crossover network<ref>Crossover: An example is the [http://rolls.com/product/SX21 Rolls SX21]. This has been discussed many times in the {{Community|link=https://www.bosepro.community/g/portable/advancedSearch?searching=true&type=0-everything&searcher.optionalWords=&searcher.requiredWords=S1+Rolls+SX21&searcher.exactPhrase=&searcher.notWords=&searcher.tags=&memberFilterLabelSearch_ignore=&searcher.postedBetween.type=BETWEEN&searcher.postedBetween.after.dateString=&searcher.postedBetween.before.dateString=&searchPagination.sort=SCORE}} </ref> with a low-pass filter to send only frequencies below approximately 100 Hz to the {{B1}} but you might still need further processing with a parametric equalizer to make this combination work well together.
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:If you need more bass than the S1 Pro system provides on its own, Bose recommends you use one of the larger {{L1}} systems.
  
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== Phantom Power Supplied by Bose Systems ==
 
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On the {{Classic}} / {{Model I}} the Power Stand supplies 24 volts for Phantom Power.<ref>[[L1®_Model_I_/_FAQ#I_thought_phantom_power_was_48_volts._Why_does_the_power_stand_only_supply_24_volts.3F|Phantom Power in Model I FAQ]]</ref>
 
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The {{T1}} provides 48 volts for Phantom Power.<ref>[[L1®_T1_ToneMatch®_Audio_Engine_/_FAQ#Do_the_mic_inputs_of_the_ToneMatch_audio_engine_have_phantom_power.3F|Phantom Power in T1® FAQ]]</ref>
 
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The {{ToneMatch Mixers}} provide 48 volts for Phantom Power.
 
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=== Will Phantom Power Damage Dynamic Microphones ===
 
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:Phantom power supplies have current limiting which will prevent damage to a dynamic microphone even if it is shorted or miswired. In general, balanced dynamic microphones can be connected to phantom powered mixer inputs with no problem.
 
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Source: [http://www.shure.com/americas/support/find-an-answer/what-is-phantom-power Shure.com]
 
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== Phantom Power Connected to Bose Systems ==
 
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Applies to:
 
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* ToneMatch Mixers
 
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* {{Compact}}
 
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* {{S1}}
 
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You may want to connect your Bose Portable PA to an external system using the Line Out. All of the Line Outputs are line-level, balanced outputs. On the {{T1}}, T4S, T8S, {{Compact}}, the outputs are 1/4 inch (6.3mm). On the T8S, there are also XLR Outputs.
 
 
   
 
   
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;Will phantom power provided by the external system damage the Bose Portable PA system?
 
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The outputs of Bose Portable PA equipment have circuitry to protect them in case phantom power is turned on in the external system.
 
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<references />
 
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<noinclude>
 
 
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[[Category:Terminology]]
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[[Category:S1 Pro]]
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</noinclude>
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[[Category:B1]]
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[[Category:Connections]]

Revision as of 22:20, 16 November 2019

S1 Pro  This information is applicable to the S1 Pro system
B1 Bass ModuleThis information is applicable to the B1 Bass Module

Question
Can you use the B1 Bass Module with the S1 Pro System
Answer
The B1 bass module is only compatible with the full-size L1 systems (L1 Classic, L1 Model 1S, L1 Model II). The B1 bass module is powered by a dedicated amplifier that is built into the power stand of those L1 systems.
The S1 Pro system is engineered to deliver great balanced sound without a separate bass module. It doesn't have an extra amplifier built-in for a B1.
As a matter of interest, the B1 bass module has two 5.25 inch drivers. The S1 Pro has one 6 inch driver.
Question
Can I use the PackLite® power amplifier model A1 to power the B1 Bass Module?
Answer
The S1 Pro System Line Out is full range. Using this to provide a full range signal the PackLite® power amplifier model A1 to power the B1 Bass Module. That's not optimal because you will have a frequency overlap between the S1 Pro System and B1 Bass Module. The B1 Bass Module was not designed to operate as a full-range loudspeaker.
You would need a crossover network[1] with a low-pass filter to send only frequencies below approximately 100 Hz to the B1 Bass Module but you might still need further processing with a parametric equalizer to make this combination work well together.
If you need more bass than the S1 Pro system provides on its own, Bose recommends you use one of the larger L1 systems.


  1. ↑ Crossover: An example is the Rolls SX21. This has been discussed many times in the Bose Portable L1 Group
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