Bose Portable PA Knowledge

Gain Staging: Difference between revisions

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== Ken-at-Bose ==
 
== L1 Pro /S1 Pro(+) / Model II / Compact / F1 ==
=== All models except the ToneMatch Mixers ===
On the [[L1 Pro]], S1 Pro(+), {{Model II}}, the {{Compact}}, and the {{F1}}, Volume (Compact/F1), these controls are actually trim controls. The L1 Model II/L1 Model 1S have a trim control.
 
There is no master volume control later in the signal chain. The amps are running at full output. '''There is no need to "add a little extra" for headroom'''. If you do, you are unnecessarily amplifying noise (e.g. audible hiss/hum) during quiet moments and raising the likelihood of distortion when you get loud.
 
=== Setting the levels ===
For the [[L1 Pro]], run the source at the highest output and set the volume so you see solid green and occasional flickers of red.
 
For the L1 Model II, run the source at the highest output and set the trim so that you see solid green and occasional flickers of yellow.
 
For the L1 Compact, run the source at the highest output and set the volume so that you see solid green, and no red.
 
For the F1 Model 812 or F1 Subwoofer, run the source at the highest output and set the volume so that you see solid green, and no red.
 
== Gain Staging Notes from the Bose Team ==
=== Ken-at-Bose ===
{{Model I icon}} {{Classic icon}}  
{{Model I icon}} {{Classic icon}}  
[[Image:THELinemenLibrary---004.jpg|200px|right|Tony Sarno of THE Linemen eats the mic]]
[[Image:THELinemenLibrary---004.jpg|200px|right|Tony Sarno of THE Linemen eats the mic]]
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This technique is true for ANY live amplification system, not just ours.
This technique is true for ANY live amplification system, not just ours.


== Bill-at-Bose ==
=== Bill-at-Bose ===
{{T1 icon}} {{Model II icon}}
{{T1 icon}} {{Model II icon}}
Bill-at-Bose <ref>[http://bose.infopop.cc/eve/forums?a=tpc&f=7521050644&m=9821050644&r=7191052284#7191052284 Bill-at-Bose Talks about Gain Staging in the Bose® Musicians Community Message Boards]</ref> talks about setting the gain on a {{T1}}.
Bill-at-Bose <ref>[http://bose.infopop.cc/eve/forums?a=tpc&f=7521050644&m=9821050644&r=7191052284#7191052284 Bill-at-Bose Talks about Gain Staging in the Bose® Musicians Community Message Boards]</ref> talks about setting the gain on a {{T1}}.
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A really helpful feature on the T1 is to go to the Prefs/Output Level menu, and see where you are relative to maximum output.
A really helpful feature on the T1 is to go to the Prefs/Output Level menu, and see where you are relative to maximum output.


 
=== Bose FAQs Classic / Model I ===
== L1 Pro /S1 Pro(+) / Model II / Compact / F1 ==
=== All models except the ToneMatch Mixers ===
On the [[L1 Pro]], S1 Pro(+), {{Model II}}, the {{Compact}}, and the {{F1}}, Volume (Compact/F1), these controls are actually trim controls. The L1 Model II/L1 Model 1S have a trim control.
 
There is no master volume control later in the signal chain. The amps are running at full output. '''There is no need to "add a little extra" for headroom'''. If you do, you are unnecessarily amplifying noise (e.g. audible hiss/hum) during quiet moments and raising the likelihood of distortion when you get loud.
 
=== Setting the levels ===
For the [[L1 Pro]], run the source at the highest output and set the volume so you see solid green and occasional flickers of red.
 
For the L1 Model II, run the source at the highest output and set the trim so that you see solid green and occasional flickers of yellow.
 
For the L1 Compact, run the source at the highest output and set the volume so that you see solid green, and no red.
 
For the F1 Model 812 or F1 Subwoofer, run the source at the highest output and set the volume so that you see solid green, and no red.
 
== Bose FAQs Classic / Model I ==
This is an excerpt from the Bose FAQs<ref>[http://www.bose.com/controller?event=VIEW_STATIC_PAGE_EVENT&url=/musicians/support/product_faqs.jsp&ck=0#question32 What is the proper method for setting the gain on the PS1 Power Stand?]</ref>
This is an excerpt from the Bose FAQs<ref>[http://www.bose.com/controller?event=VIEW_STATIC_PAGE_EVENT&url=/musicians/support/product_faqs.jsp&ck=0#question32 What is the proper method for setting the gain on the PS1 Power Stand?]</ref>


There are three gain settings for the primary channels (1 and 2) and two gain settings for the secondary channels (3 and 4).
There are three gain settings for the primary channels (1 and 2) and two gain settings for the secondary channels (3 and 4).


=== Channels 1 or 2 ===
==== Channels 1 or 2 ====
To set the gain for the primary channels (1 or 2):
To set the gain for the primary channels (1 or 2):


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# Lastly, the R1 Remote Control MASTER knob is the last stage of gain. This knob gives you control over all 4 channels of the PS1 Power Stand.
# Lastly, the R1 Remote Control MASTER knob is the last stage of gain. This knob gives you control over all 4 channels of the PS1 Power Stand.


=== Channels 3 or 4 ===
==== Channels 3 or 4 ====
To set the gain for the secondary channels (3 or 4):
To set the gain for the secondary channels (3 or 4):


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