L1 Inputs General Information: Difference between revisions

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General information about inputs
{{DivToc
 
|RightHead = Introduction
 
|RightBody = The Bose Portable PA systems have several types of inputs:
* XLR/ 1/4 inch (6.3 mm) Tip-Ring-Sleeve combo jacks
* 1/4 inch (6.3 mm) Tip-Ring-Sleeve  / Tip-Sleeve jacks
* 1/8 inch (3.5 mm) Tip-Ring-Sleeve jacks
;XLR
:  The XLR inputs are microphone-level, and you should avoid using line-level sources except for models with trim controls (ToneMatch Mixers) or automatic DSP trim (L1 Pro)
 
; 1/4 inch (6.3 mm) Tip-Ring-Sleeve
: For line-level, balanced sources
 
; 1/4 inch (6.3mm) Tip-Sleeve 
: For instrument level (high impedance) sources
 
; 1/8 inch (3.5 mm) Tip-Ring-Sleeve 
: For stereo sources at consumer line-level (e.g., headphone jack outputs from phones/tablets/computers)
 
For details for a specific model, follow the links to the left.
 
|Categories =
 
[[Category:How To]]
[[Category:Product to which this applies]]
[[Category:Other]]
}}
 
 
== ToneMatch Mixers (T1, T4S/T8S)  ==
== ToneMatch Mixers (T1, T4S/T8S)  ==
=== Combo Jacks ===
=== Combo Jacks ===
* The XLR inputs are microphone-level inputs.
* The XLR inputs are microphone-level inputs.
* The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
* The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
* When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs.
* When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs. These are high-impedance inputs suitable for guitars with bare piezo pickups (no electronics).
;Note:
;Note:
:Unlike the L1, F1, and S1 models, the ToneMatch mixers (T1, T4S/T8S) have input trim controls to adjust the input sensitivity. This means that you can connect line-level sources to the XLR inputs and adjust the input sensitivity with the trim controls.
:Unlike the L1, F1, and S1 models, the ToneMatch mixers (T1, T4S/T8S) have input trim controls to adjust the input sensitivity. This means that you can connect line-level sources to the XLR inputs and adjust the input sensitivity with the trim controls.
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=== Channel 2 ===
=== Channel 2 ===
====1/4 inch (6.3 mm) Tip-Ring-Sleeve ====
====1/4 inch (6.3 mm) Tip-Ring-Sleeve ====
* If you connect with a 1/4 inch (6.3mm) Tip-Sleeve input, this is an instrument-level input. If connecting a guitar, set the ToneMatch switch to Guitar (up). For other instruments, set the ToneMatch switch to Line (down).
* If you connect with a 1/4 inch (6.3mm) Tip-Sleeve input, this is an instrument-level input. This is a high-impedance input suitable for guitars with bare piezo pickups (no electronics). If connecting a guitar, set the ToneMatch switch to Guitar (up). For other instruments, set the ToneMatch switch to Line (down).
* If you connect with a 1/4 inch (6.3 mm) Tip-Ring-Sleeve jack, this is a balanced line-level input. Use balanced connections with a 1/4-inch Tip-Ring-Sleeve plug. A 1/4 inch (6.3mm) Tip-Sleeve plug creates an unbalanced connection and loses up to -6 dB gain. Set the ToneMatch switch to Line (down).
* If you connect with a 1/4 inch (6.3 mm) Tip-Ring-Sleeve jack, this is a balanced line-level input. Use balanced connections with a 1/4-inch Tip-Ring-Sleeve plug. A 1/4 inch (6.3mm) Tip-Sleeve plug creates an unbalanced connection and loses up to -6 dB gain. Set the ToneMatch switch to Line (down).
==== 1/8 inch Tip-Ring-Sleeve ====
==== 1/8 inch (3.5 mm) Tip-Ring-Sleeve ====
This is a stereo input for consumer line-level inputs. The left and right channels are buffered to mono.
This is a stereo input for consumer line-level inputs. The left and right channels are buffered to mono.


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== L1 Pro ==
== L1 Pro ==
=== Combo Jacks (Inputs 1 and 2)  ===
=== Combo Jacks (Channels 1 and 2)  ===
* The XLR inputs are microphone-level inputs.
* The XLR inputs are microphone-level inputs.
* The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
* The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
* When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs.
* When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs. These are high-impedance inputs suitable for guitars with bare piezo pickups (no electronics).


The L1 Pro systems are unique among all the Bose Portable PA systems because a Digital Signal Processor automatically sets the input gain (like an automatic trim control).
The L1 Pro systems are unique among all the Bose Portable PA systems because a Digital Signal Processor automatically sets the input gain (like an automatic trim control).


Trim: The DSP automatically selects and compensates 0 dB, 12 dB, 24 dB, 36 dB, and 45 dB analog gain steps. This means that you can connect line-level sources to the XLR inputs, and the DSP will adjust the input sensitivity automatically.
Trim: The DSP automatically selects and compensates 0 dB, 12 dB, 24 dB, 36 dB, and 45 dB analog gain steps. This means that you can connect line-level sources to the XLR inputs, and the DSP will adjust the input sensitivity automatically.
=== 1/4 inch (6.3 mm) Tip-Ring-Sleeve (Channel 3) ===
This is a balanced line-level input. Use balanced connections with a 1/4-inch Tip-Ring-Sleeve plug.
A 1/4 inch (6.3mm) Tip-Sleeve plug creates an unbalanced connection and loses up to -6 dB gain compared to a balanced connection.
This also accepts instrument-level sources except guitars without a built-in preamp.
==== 1/8 inch (3.5 mm) Tip-Ring-Sleeve ====
This is a stereo input for consumer line-level inputs. The left and right channels are buffered to mono.


== S1 Pro ==
== S1 Pro ==
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* The XLR inputs are microphone-level inputs.
* The XLR inputs are microphone-level inputs.
* The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
* The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
* When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs.
* When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs. These are high-impedance inputs suitable for guitars with bare piezo pickups (no electronics).




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* The XLR inputs are microphone-level inputs.
* The XLR inputs are microphone-level inputs.
* The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
* The 1/4-inch Tip-Ring-Sleeve jacks are line-level inputs.
* When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs.
* When you connect a 1/4-inch (6.3mm) Tip-Sleeve connector to the 1/4-inch jacks, they are instrument-level inputs. These are high-impedance inputs suitable for guitars with bare piezo pickups (no electronics).


=== Aux Input ===
=== Aux Input ===
This refers to the 1/4 inch (6.3 mm) Tip-Ring-Sleeve Aux Jack on channel 3
This refers to the 1/4 inch (6.3 mm) Tip-Ring-Sleeve Aux Jack on channel 3


This is a balanced line-level input. Use balanced connections with a 1/4-inch Tip-Ring-Sleeve plug. Using a 1/4 inch (6.3mm) Tip-Sleeve plug creates an unbalanced connection and loses up to -6 dB gain.
This is a balanced line-level input. Use balanced connections with a 1/4-inch Tip-Ring-Sleeve plug. Using a 1/4 inch (6.3mm) Tip-Sleeve plug creates an unbalanced connection and loses up to -6 dB gain compared to a balanced connection.
 


This also accepts instrument-level sources except guitars without a built-in preamp.


== F1 812 ==
== F1 812 ==