L1 Inputs General Information: Difference between revisions
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{{DivToc | {{DivToc | ||
|RightHead = | |RightHead = Introduction | ||
|RightBody = The Bose Portable PA systems have several types of inputs: | |RightBody = The Bose Portable PA systems have several types of inputs: | ||
* XLR/ 1/4 inch (6.3 mm) Tip-Ring-Sleeve combo jacks | * XLR/ 1/4 inch (6.3 mm) Tip-Ring-Sleeve combo jacks | ||
* 1/4 | * 1/4 inch (6.3 mm) Tip-Ring-Sleeve / Tip-Sleeve jacks | ||
* 1/8 | * 1/8 inch (3.5 mm) Tip-Ring-Sleeve jacks | ||
;XLR | ;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 | ; 1/4 inch (6.3 mm) Tip-Ring-Sleeve | ||
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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). | ||
;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 ( | === 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 == | ||