JBL LS120P Powered Subwoofer Owner's Guide

Owner's guide for the JBL LS120P powered subwoofer covering unpacking, placement, installation, operation, and maintenance instructions.


JBL LS120P Powered Subwoofer Owner's Guide - cover page
Brand
JBL
Category
Other Electronics
Document type
User Manual
Language
English
Pages
8
File format
PDF
File size
1.2 MB
Published
27 October, 2026
Updated
27 October, 2026
MD5 checksum
100BD983D7F1DC1C49A33B59539F2887

About this manual

This manual provides instructions for the JBL LS120P powered subwoofer, covering unpacking, placement, and installation. It details how to install spiked feet for carpeted surfaces and explains the importance of proper placement for optimal bass performance.

What's inside

  • Unpacking the Subwoofer
  • Placement
  • Installing Spiked Feet
  • Rear Panel Controls and Connections
  • System Connections
  • Power On
  • Auto On/Standby
  • Getting Started
  • Adjust Level
  • Phase Control

Frequently asked questions

What is the voltage rating for this subwoofer?

This model is designed for use with a 230V power supply.

How long does it take for the subwoofer to enter standby mode?

The unit automatically enters Standby mode after approximately 10 minutes when no signal is detected.

What frequency range should be set for the crossover adjustment on smaller bookshelf speakers?

You should set the control to a higher setting between 120Hz and 150Hz.

Download PDF (1.2 MB)

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