Harman JBL Synthesis SSW-1, Owner'S Manual

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tHanK YOu FOr CHOOsInG JBL
®
For more than 70 years, JBL has been involved in every aspect of music and film recording and reproduction, from live
performances to monitoring the recordings you play in your home, car or office.
We are confident that the JBL Synthesis loudspeaker you have chosen will provide every note of enjoyment that you
expect – and that when you think about purchasing additional audio equipment for your home, car or office, you will
once again choose JBL.
Please take a moment to register your product on our website at www.jblsynthesis.com. This enables us to keep you
posted on our latest advancements, and helps us to better understand our customers and build products that meet
their needs and expectations.
All features and specifications are subject to change without notice.
PaCKaGe COntents
1x Subwoofer 1x Grille 1x Quick Start Guide
PLaCeMent
When using subwoofers within the limited confines of a typical home theater room, the reflections, standing waves, and
resonant absorbers within the room will create peaks and dips in the bass response that can vary greatly depending
on where the listeners are located in the room - a listener seated in one location may hear an over abundance of bass
created by a response peak at the location, while another listener only a few feet away may hear far less bass due to a
response dip at that location.
The locations of subwoofers within the room (along with the room’s dimensions) also have a profound effect on the
creation of these bass response peaks and dips. Careful subwoofer placement alone cannot compensate for all bass
response peaks and dips throughout a room, but careful subwoofer placement can eliminate or significantly reduce the
largest response dips.
It is important to reduce response dips throughout the room as much as possible via proper subwoofer placement
because equalization cannot be used to compensate for large response dips. For example, using equalization in
an attempt to restore a 13dB response dip requires that the subwoofer amplifier deliver 20 times the power at that
frequency. This can quickly overdrive the subwoofer amplifier into clipping, which will significantly degrade audio
quality.
In almost any room, placing the subwoofers in corners will produce the fewest large bass response dips and will also
produce the largest bass response peaks.
We strongly recommend that you install multiple subwoofers regardless of the room size. A single subwoofer will result
in the least consistent bass performance throughout the room. Using multiple subwoofers can cancel some room
modes at the various listening locations, resulting in much more consistent low-frequency sound quality throughout
the listening area. It is often impossible to locate a single subwoofer such that large response dips, which cannot
be corrected via equalization, are not present. The use of two or more properly placed subwoofers almost always
eliminates such response dips.