The voice coil assembly is bonded
to the Kevlar cone and new,
incredibly tough plastiseal-coated
Nomex
®
progressive-roll spider
using a thermoset epoxy originally
developed for attaching nose
cones onto ICBM missiles — truly
an aerospace grade adhesive. The
spider and surround are bonded to
the frame with a strong, toughened
cyanoacrylate adhesive, which is
also used to bond the dust cap to
the cone.
The magnet structure is all new
and was designed using extensive
Finite Element computer modeling.
The back plate/pole piece is cold
forged from a single massive billet
of ultra low carbon steel, included
Peavey’s patented Focused Field
Geometry and is undercut to allow
greater coil travel. The pole is
extended beyond the front plate to
improve coil cooling and make it
more magnetically linear and the
front plate is 10mm thick to match
the long voice coil and provide a
better path for heat and magnetic
energy. The result is 50% more
total magnetic gap energy than
can be found in the standard Black
Widow Super Structure magnet
assembly.
A patent pending vent plate greatly
improves voice coil cooling. This
heat conductive, ported and finned
aluminum ring delivers cool air
pumped by the spider directly to
the voice coil to keep operating
temperatures under control. The
improved cooling increases power
handling and reliability and reduce
power compression.
The cast aluminum frame is tough
and rigid and has the strength
needed to hold the cone and
huge magnet assembly in perfect
alignment. The deep dish design
and large spider clearance make
high excursion and high output
possible.
These dynamic new drivers
also utilize the user friendly
Black Widow replaceable basket
assemblies with Rubatex
®
gaskets.
The result of these specially
designed components are truly
amazing loudspeakers. The Low
Rider’s astonishing low frequency
output is due to its high power
handling capability and its 1.4” of
available cone movement. These
speakers can also be used with
small enclosures, adding a new
dimension to compact, high output
sound reinforcement systems.
APPLICATIONS
The Low Rider
®
is specifically
designed for sub woofer use, with
extremely high output capabilities
and massive power handling.
While most sub woofer applications
are below 150 Hz, it is usable to
frequencies as high as 500 Hz.
The compact enclosure
designs are ideal for instrument
amplification and high portability
applications such as DJ and small
touring bands. They provide solid
bass performance in extraordinarily
small enclosures. Band pass
enclosures also fit into this range
as standalone sub woofers.
The medium sized enclosures
are still smaller than usual and
have more bass extension and
much higher output capabilities
than conventional designs. They
are excellent choices for high
performance sound reinforcement.
These designs are the best
combination of size and bass
performance.
For permanent installations and
applications requiring extremely
deep bass performance, the large
vented enclosures are ideal.
The low frequency extension
and high sound pressure levels
these systems can produce
is astounding. As is typical in
large, vented systems with low
vent tuning, power handling is
reduced by at least 15% due to the
increased cone excursion.
Due to the Low Rider’s high
output capabilities, excessive level
may cause structural damage to
buildings or induce permanent
hearing loss, nausea, vertigo or
intestinal disturbances in listeners.
Please be cautious when setting
maximum sound pressure levels.
ENCLOSURES
To assist with the growing interest
in home built enclosure designs,
Peavey includes complete
parameter data on these drivers
and also provides the user with
several recommended enclosure
designs. This information and
much more can be found at www.
peavey.com.
The 18” Low Rider driver performs
best with vented enclosure
between 5 and 9 cubic feet (142 to
255 liters) and vent tunings from
30 to 45 Hz. The Low Rider 18
is optimized for vented systems
but will also work with appropriate
single reflex bandpass enclosures.
Sealed, infinite baffle, horn,
transmission line and dual reflex
bandpass enclosures are not
recommended.
The Low Rider 15” driver works
best in vented enclosures between
2 and 5 cubic feet (56.6 to 141.6
liters) and vent tunings from 34
to 45 Hz. It can also be used in
certain single reflex bandpass
designs. As with the Low Rider
18, sealed, infinite baffle, horn,
transmission line and dual reflex
bandpass enclosures are not
recommended.
Active filtering must be included
with amplifiers greater than 750
watts. This filter should be a
high pass 24dB Butterworth at a
minimum of 25 Hz for the 18” and
32 Hz for the 15”. Filtering is also
recommended below 750 watts
in order to conserve amplifier
power and reduce excessive cone
motion. Failure to use filtering with
high power operation may cause
driver damage that can void your
warranty.
Strength of the completed
enclosure has a great effect on the
bass performance of the finished
system. Internal bracing is required
