JBL HT PS300 User Manual

HT PS300
Powered
Subwoofer
simple
set-up guide
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JBL Consumer Products
HT PS 300 (120V) OM 7/22/98 2:05 PM Page 1

JBL HT PS300 Specifications

Power

amplifier power	200 watts

Drivers

driver size	12 inches
driver material	polymer-laminated cones

Inputs and Outputs

inputs	THX and normal line level, high level
outputs	high level

Frequency and Response

crossover frequency	50Hz – 120Hz
frequency response	25Hz – crossover point

Weight and Dimensions

dimensions	552 x 533 x 533 mm
weight	67 lbs/30.5 kg

Summary

Important Safety Precautions

Risk of Electric Shock Warning

Dedicated warning about electric shock hazards and not opening the product.

General Safety Guidelines

Essential operating and safety instructions to read, retain, and follow for safe product use.

Environmental and Installation Safety

Precautions regarding water, moisture, heat, ventilation, and proper mounting.

Electrical and Power Safety

Guidelines on power sources, grounding, polarization, cord protection, and overloading.

Hazardous Entry and Servicing

Warnings against object/liquid entry and instructions for when to refer servicing to qualified personnel.

Speaker Placement

Hookup Guide

Line-Level Inputs and THX Mode

Connecting via line-level inputs, including specific setup for THX certified systems.

Normal Mode Connection

Connecting to receivers without a subwoofer crossover using normal line-level inputs.

High-Level Input Connection

Connecting using speaker-level (high-level) inputs when the receiver lacks subwoofer outputs.

Operation

Automatic Power Management

Details on the signal-sensing auto turn-on/off circuit and standby modes.

Controls and Adjustments

Explanation of Output Level, Crossover Frequency, and Phase controls.

Troubleshooting

No Sound Output Diagnosis

Steps to identify and fix issues causing no sound from the subwoofer.

Low Bass Performance Issues

Troubleshooting guides for addressing weak or insufficient bass output.

Incorrect Frequency Output

How to resolve the issue of midrange frequencies being heard from the subwoofer.

Specifications