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Owner’s Manual
7
Owner’s Manual
The S500 Series loudspeakers are designed to sit on
the floor or stage. The S512 and S515 may also be pole-
mounted via the built-in socket on the bottom of the
cabinet. Be sure the pole is capable of supporting the
weightoftheloudspeaker.TheS525andS518SareNOT
designed to be pole-mounted.
WARNING: These cabinets have no rigging
points and are not suitable for rigging.
NEVER attempt to suspend any S500 Series
loudspeaker by its handles.
As with any loudspeakers, protect them from
moisture.Ifyouaresettingthemupoutdoors,make
sure they are under cover if you expect rain.
Room Acoustics
The S500 Series loudspeakers are designed to sound
asneutralaspossible.However,roomacousticsplay
a crucial role in the overall performance of a sound
system.Herearesomeplacementtipstogetthebest
performance from the S500 Series loudspeakers:
• Avoidplacingloudspeakersinthecornersof
aroom.Thisincreasesthelow-frequency
output and can cause the sound to be muddy
and indistinct.
• Avoidplacingloudspeakersagainstawall.
This,too,increasesthelow-frequencyoutput,
though not as much as corner placement.
However,ifyoudoneedtoreinforcethelow
frequencies,thisisagoodwaytodoit.
• Avoidplacingtheloudspeakersdirectlyon
a hollow stage floor. A hollow stage can resonate
atcertainfrequencies,causingpeaksanddips
inthefrequencyresponseoftheroom.Itisbetter
to place the loudspeakers on a sturdy table or
tripod stands.
• Positiontheloudspeakerssothehigh-frequency
drivers are a foot or more above ear level for
the audience. (Make allowances for a standing /
dancing-in-the-aislesaudience).Highfrequencies
are highly directional and tend to be absorbed
mucheasierthanlowerfrequencies.Byproviding
direct line-of-sight from the loudspeakers to
the audience, you increase the overall brightness
and intelligibility of the sound system.
Placement
• Highlyreverberantrooms,likemanygymnasiums
and auditoriums, are a nightmare for sound
system intelligibility. Multiple reflections off the
hard walls, ceiling and floor play havoc with the
sound. Depending on the situation, you may
be able to take some steps to minimize the
reflections, such as putting carpet on the floors,
closing draperies to cover large glass windows,
or hanging tapestries or other materials on the
walls to absorb some of the sound.
However,inmostcases,theseremediesarenot
possible or practical. So what do you do? Making
the sound system louder generally doesn’t work
because the reflections become louder, too. The
best approach is to provide as much direct sound
coverage to the audience as possible.. The farther
away you are from the loudspeaker, the more
prominent will be the reflected sound.
Usemorespeakersstrategicallyplacedsothey
areclosertothebackoftheaudience.Ifthe
distance between the front and back speakers is
more than 100 feet, you should be able to use a
delay processor to time-align the sound. Since
sound travels about one foot per millisecond, it
takes 1/10 of a second to travel 100 feet.