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

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=== Analog Input ===

The Analog input is a ¼ inch balanced input jack.

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]]

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

There is a trim control for the analog input.

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]]

;Setting the Trim Control

# Set the '''Trim''' control on the power stand to the 0 (zero) position.

# Connect the audio source to the Analog Input

# Adjust the volume of the ~~audio~~ source to the ~~maximum~~ output without distortion.

# Adjust the volume of the {{{Device|source device}}} output to the reference or nominal output level.

# While playing ~~the source~~, increase the '''Trim''' level so that the '''Signal/Clip''' indicator glows green or yellow.

#* On analog consoles this may be marked as '''unity''' or '''0 dB'''.

# If the '''Signal/Clip''' indicator glows red, decrease the '''Trim''' level so that it glows only green or yellow.

#* On digital consoles this may be marked as '''-18 dBFS<ref>[https://en.wikipedia.org/wiki/DBFS dBFS]</ref><ref>[http://avres.com/blog/dbu-vs-dbfs.html dBU vs dBFS]</ref>'''. The exact value (-18 dBFS to -20 dBFS) may vary depending your location<ref>[https://en.wikipedia.org/wiki/DBFS#Analog_levels dBFS Analog Levels]</ref>.

#* Refer to the manual for the {{{Device|source device}}} for details.

#* If the {{{Device|source device}}} does not have metering or indicators, set the output as high as you can without hearing distortion or seeing red indicator lights.

# While playing/singing as loud as you will during your performance, increase the '''Trim''' level so that the '''Signal/Clip''' indicator glows green or yellow. Occasional flickers of red are okay.

# If the '''Signal/Clip''' indicator glows solid red or you hear distortion, decrease the '''Trim''' level so that it glows only green or yellow.

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

@@ Line 61: / Line 61: @@
 <section begin=AnalogInput />
 === Analog Input  ===
-The Analog input is a ¼ inch balanced input jack.
+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]]
@@ Line 67: / Line 67: @@
 ==== Analog input trim (volume, or gain) control  ====
-There is a trim control for the analog input.
+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]]
+;Setting the Trim Control
 # Set the '''Trim''' control on the power stand to the 0 (zero) position.
 # Connect the audio source to the Analog Input
-# Adjust the volume of the audio source to the maximum output without distortion.
+# Adjust the volume of the {{{Device|source device}}} output to the reference or nominal output level.
-# While playing the source, increase the '''Trim''' level so that the '''Signal/Clip''' indicator glows green or yellow.
+#* On analog consoles this may be marked as '''unity''' or '''0 dB'''.
-# If the '''Signal/Clip''' indicator glows red, decrease the '''Trim''' level so that it glows only green or yellow.
+#* On digital consoles this may be marked as '''-18 dBFS<ref>[https://en.wikipedia.org/wiki/DBFS dBFS]</ref><ref>[http://avres.com/blog/dbu-vs-dbfs.html dBU vs dBFS]</ref>'''. The exact value (-18 dBFS to -20 dBFS) may vary depending your location<ref>[https://en.wikipedia.org/wiki/DBFS#Analog_levels dBFS Analog Levels]</ref>.
+#* Refer to the manual for the {{{Device|source device}}} for details.
+#* If the {{{Device|source device}}} does not have metering or indicators, set the output as high as you can without hearing distortion or seeing red indicator lights.
+# While playing/singing as loud as you will during your performance, increase the '''Trim''' level so that the '''Signal/Clip''' indicator glows green or yellow. Occasional flickers of red are okay.
+# If the '''Signal/Clip''' indicator glows solid red or you hear distortion, decrease the '''Trim''' level so that it glows only green or yellow.
 [[Image:Model II Analog Input Level Green.png|Model 1S Analog Input]]