Bose Portable PA Knowledge - Recent changes [en]

L1Â® System FAQ

ST — Tue, 27 Sep 8461 03:09:00 GMT

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	This is the latest version of the L1® FAQs originally published in February 2008 on the [http://www.bose.com/controller?event=VIEW_STATIC_PAGE_EVENT&url=/musicians/faqs.jsp Main Bose Site]. An unofficial version is in the works that will be a superset of what is here, providing links to detailed information from users' experiences.		This is the latest version of the L1® FAQs originally published in February 2008 on the [http://www.bose.com/controller?event=VIEW_STATIC_PAGE_EVENT&url=/musicians/faqs.jsp Main Bose Site]. An unofficial version is in the works that will be a superset of what is here, providing links to detailed information from users' experiences.
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	* [[Videos\|Video presentations]]		* [[Videos\|Video presentations]]
	* [[Interactive Tools\|Interactive Tools]] Experience the gear online		* [[Interactive Tools\|Interactive Tools]] Experience the gear online
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L1Â® Model I / FAQ

ST — Tue, 27 Sep 8461 03:09:00 GMT

L1Â® Model I Documentation

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	This is the latest version of the L1® FAQs originally published in February 2008 on the [http://www.bose.com/controller?event=VIEW_STATIC_PAGE_EVENT&url=/musicians/faqs.jsp Main Bose Site]. As a reprint of previously published material, it is not open for edits, but please use the discussion page to make note of any issues or discrepancies.</td>		This is the latest version of the L1® FAQs originally published in February 2008 on the [http://www.bose.com/controller?event=VIEW_STATIC_PAGE_EVENT&url=/musicians/faqs.jsp Main Bose Site]. As a reprint of previously published material, it is not open for edits, but please use the discussion page to make note of any issues or discrepancies.</td>
			<td valign="top" width="30%">'''Documentation'''
			{{:L1® Model I Documentation}}</td>

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L1Â® Model II / FAQ

ST — Tue, 27 Sep 8461 03:09:00 GMT

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	This is the latest version of the L1® FAQs originally published in February 2008 on the [http://www.bose.com/controller?event=VIEW_STATIC_PAGE_EVENT&url=/musicians/faqs.jsp Main Bose Site]. It appears here with permission from {{Bose}}. As a reprint of a {{Bose}} document, it is not open for edits, but please use the discussion page to make note of any issues or discrepancies.		This is the latest version of the L1® FAQs originally published in February 2008 on the [http://www.bose.com/controller?event=VIEW_STATIC_PAGE_EVENT&url=/musicians/faqs.jsp Main Bose Site]. It appears here with permission from {{Bose}}. As a reprint of a {{Bose}} document, it is not open for edits, but please use the discussion page to make note of any issues or discrepancies.
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			<td valign="top" width="30%">'''Documentation'''
			{{:L1® Model II Documentation}}</td>
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Sub1/Sub2

ST — Sun, 17 May 2026 00:31:27 GMT

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	<h3>Introduction</h3>		<h3>Introduction</h3>
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	* [https://assets.bose.com/content/dam/Bose_DAM/Web/pro/global/products/portable_PA/sub1_bass_module/downloads/technical_information/tds_sub1_en.pdf Sub1 Technical Data Sheet]		* [https://assets.bose.com/content/dam/Bose_DAM/Web/pro/global/products/portable_PA/sub1_bass_module/downloads/technical_information/tds_sub1_en.pdf Sub1 Technical Data Sheet]
	* [https://assets.bose.com/content/dam/Bose_DAM/Web/pro/global/products/portable_PA/sub2_bass_module/downloads/technical_information/tds_sub2_en.pdf Sub2 Technical Data Sheet]		* [https://assets.bose.com/content/dam/Bose_DAM/Web/pro/global/products/portable_PA/sub2_bass_module/downloads/technical_information/tds_sub2_en.pdf Sub2 Technical Data Sheet]
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L1 Pro Hiss

ST — Sat, 16 May 2026 11:45:01 GMT

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	This information applies to all L1 Pro models.		This information applies to all L1 Pro models.

	;Some people turn up the inputs 1 and 2 ~~without~~ nothing attached and are concerned about hiss from the system.		;Some people turn up the inputs 1 and 2 with nothing attached and are concerned about hiss from the system.

			<details><summary><big>Do NOT turn up the volume with nothing connected to the inputs</big>. The system is not designed to operate this way, and it serves no purpose.</summary>

	:It's not advised to turn up a channel to halfway with nothing plugged into it and NOT mute it. Not with this system, or any PA system. This is not how a PA is used. As has been stated several times on various posts, the Pro32 is a very loud system with an aggressive taper on the first 50% of the volume dial. Digital gain + analog gain working together to provide a smooth taper for mic or line level instruments without having select what type of input source. Noise floor levels are imperceptible when proper gain staging in use, and in the presence of ambient event noise.		:It's not advised to turn up a channel to halfway with nothing plugged into it and NOT mute it. Not with this system, or any PA system. This is not how a PA is used. As has been stated several times on various posts, the Pro32 is a very loud system with an aggressive taper on the first 50% of the volume dial. Digital gain + analog gain working together to provide a smooth taper for mic or line level instruments without having select what type of input source. Noise floor levels are imperceptible when proper gain staging in use, and in the presence of ambient event noise.

	Source: [https://www.facebook.com/groups/BoseL1/posts/10159761707557446/?comment_id=10159762725097446&reply_comment_id=10159763243987446 Craig Small - Bose]		Source: [https://www.facebook.com/groups/BoseL1/posts/10159761707557446/?comment_id=10159762725097446&reply_comment_id=10159763243987446 Craig Small - Bose]
			</details>

	If you turn up an L1 Pro16 channel beyond 1/2 way in a quiet house and relatively no ambient noise: you will hear some noise floor because that setting is LOUD. Do the exact same thing in a club or venue and you will not hear the noise floor. Channels 1 & 2 can accommodate mic level and line level inputs, and do so by intersecting hardware/preamp gain and digital/DSP gain. While no signal is present, you may hear the DSP gain "steps" while increasing or decreasing the volume. But when an audio source is connected, the user hears a smooth, continuous volume taper. This is what matters to the user and to the audience.		If you turn up an L1 Pro16 channel beyond 1/2 way in a quiet house and relatively no ambient noise: you will hear some noise floor because that setting is LOUD. Do the exact same thing in a club or venue and you will not hear the noise floor. Channels 1 & 2 can accommodate mic level and line level inputs, and do so by intersecting hardware/preamp gain and digital/DSP gain. While no signal is present, you may hear the DSP gain "steps" while increasing or decreasing the volume. But when an audio source is connected, the user hears a smooth, continuous volume taper. This is what matters to the user and to the audience.