8
Your LS4m and Subwoofers
All Wisdom Series loudspeakers are optimized for use with subwoofers, with a
crossover of 80 Hz. (This is the most common frequency below which subwoofers
are used.)
When properly installed in the wall, your LS4m has inherently a response to 80 Hz,
without the common “bass bump” that characterizes most in-wall speakers and is
placed there to yield the impression of “more bass” than there really is. This makes
it easy to blend seamlessly with a high quality subwoofer such as one of Wisdom
Audio’s Regenerative Transmission Line™ (RTL™) subwoofers.
You should set up your surround processor for a crossover of 80 Hz and set the
LS4m speakers as “Small” in the speaker setup portion of your processor’s setup
menu. Doing so ensures that all content below 80 Hz is directed to the
subwoofer(s) for reproduction.
Care & Maintenance
To remove dust from the front of your LS4m, use a feather duster or a lint-free soft
cloth.
To remove stubborn dirt and fingerprints from the grille, we recommend isopropyl
alcohol and a soft cloth. Lightly dampen the cloth with alcohol first and then clean
the grille of the LS4m with the cloth. Do not use excessive amounts of alcohol—
there is no need for the cloth to be wet; merely damp is better.
Never attempt to clean the drivers themselves.
Caution!
Do not touch the surface of the planar magnetic drivers, under any circumstances.
The thin film has been carefully pre-tensioned at the factory; any subsequent
contact can only damage it.
