Peavey Low Rider 18 Quick Manual

Suggested enclosures
For those who want to build their own enclosures, but don't want to go through the design process using driver
parameters, Peavey provides the following optimized designs:
ENCLOSURES Net Volume Vent diameter Vent length
cubic feet/liters (qty) inches/mm inches/mm
Small vented box 5.0 / 142 (2) 6" / 152 15.25 / 387
Medium vented box 6.75 / 191 (2) 6" 152 12.75 / 324
Large vented box 9 / 255 (2) 6" 152 12 / 305
Single reflex bandpass Sealed: 4.0 / 113
Vented: 3.5 / 85 (2) 6" / 152 5.0
1. Small vented box
This enclosure is as small as many 15" cabinets, has better bass performance, and handles tons of
power. This design would be an excellent choice for large touring systems due to the increased number
of enclosures possible in the same load-out volume.
2. Medium vented box
This enclosure is an exceptional compromise of deep bass extension, high power handling, and
reasonable size. It is capable of extremely high output below 40 Hz for excellent performance.
3. Large vented box
The large vented box produces superb performance in the bottom octave for high level playback, movie
theater, special effects and permanent installation. The enclosure reduces power handling by about 15%
but offers useful output to 25 Hz.
4. Single-reflex bandpass
Special enclosure design that uses the enclosure as an acoustic filter for shaped response. Not as
efficient as a vented system, but it doesn't require a crossover for subwoofer use.
Kapton ® is a registered trademark of DuPont.
Kevlar ® is a registered trademark of DuPont.
Nomex ® is a registered trademark of DuPont.
Rubatex ® is a registered trademark of Rubatex Corporation.
REPLACEMENT OF SPEAKER BASKET ASSEMBLY
1. Prior to replacement procedure, clean work area of all metal objects and other debris.
2. With speaker lying face down, remove the three screws on back of magnet structure with 7/16"
V b box tuning F 3 , -3 dB
nut driver.
frequency in Hz point in H
3.. After screws are removed, lift the magnet structure off the basket frame.
37 40
4. Clean the voice coil "gap" before magnet structure is put on new replacement basket. (See
34 35
illustration.) Fold a piece of masking tape over on itself several times, sticky side out, and insert it
into the voice coil "gap." Run it all the way around the "gap" several times to remove all particles of
30 31
metal and other trash before magnet structure is put on new replacement basket.
5. Holding magnet structure in slanted position, gently lower the structure down into the basket so
65 40 - 104
that it rests inside the magnet structure counter bore, being sure to align the screw holes, and
lower the structure down into place. Insert screws and tighten.
STEP 1
STEP 3
Peavey Electronics Corporation • 711 A Street • Meridian • MS • 39301
©2001
STEP 2
STEP 4
ONE YEAR LIMITED WARRANTY
NOTE: For details, refer to the warranty statement. Copies of this
statement may be obtained by contacting Peavey Electronics
Corporation, P.O. Box 2989, Meridian, MS 39335
Features and specifications subject to change without notice.
(601) 483-5365 • FAX (601) 486-1278 • www.peavey.com
Printed in the U.S.A. 6/01
80304779
S P E C S
P E A V E Y E L E C T R O N I C S
Peavey Low
Rider 18
™
00479910
INTRODUCTION
The new Low Rider 18" driver is a
milestone in high-power subwoofer
design. An incredible 1,600 Watt program
rating and extra-long cone excursion add
up to amazing new levels of clean, deep
bass.
The Low Rider 18 is an superior choice
for the bottom end of any high powered
sound system, from DJ rigs to the largest
professional touring shows.
DESIGN
The Low Rider 18 utilizes a new cone with a special thermally-conductive
that is a variation on the existing Kevlar -
® silicone adhesive for encapsulation and
impregnated cones used on all Black
heat dissipation.
Widow speakers. The new cone is
The voice coil assembly is bonded to the
stronger and tougher and uses an
Kevlar cone and new, incredibly tough
innovative asymmetrical-M surround for
plastiseal-coated Nomex progressive-roll
superior excursion and motion control.
spider using a thermoset epoxy originally
High quality spring terminals accepting
developed for attaching nose cones on
large gauge wire are attached to large ICBM missiles – truly an aerospace-grade
diameter, high current tinsel leads with adhesive. The spider and surround are
silver solder to withstand high current, bonded to the frame with a high strength
high temperatures and long excursion. toughened-cyanoacrylate adhesive, which
is also used to bond the dust cap to the
The massive new voice coil uses
cone.
polyimide-insulated copper ribbon wire,
edge-wound and bonded onto an The magnet structure is all-new, and was
incredibly durable and heat resistant designed using extensive Finite Element
polyimide composite former. The coil's computer modeling. The back plate/pole
winding length of 1.150" is an amazing piece is cold-forged from a single
80% longer than Peavey's standard 18" massive billet of ultra-low carbon steel,
Black Widow coil. The long coil has much
includes Peavey's patented Focused
more surface area to dissipate heat, and
Field Geometry, and is undercut to allow
its increased length drives the cone to far
greater coil travel. The pole is extended
higher excursion. The coil is overcoated beyond the front plate to improve
with a tough thermoset epoxy for added magnetic linearity and coil cooling, and
durability, abrasion resistance and heat the front plate is a full 10 mm thick to
dissipation. match the long voice coil and provide a
better path for heat and magnetic energy.
The coil wires are solderless diffusion
The result is fully 50% more total
welded to high-conductivity OFHC copper
magnetic gap energy than can be found
ribbon leads, which are embedded inside
in the standard Black Widow Super
the former assembly and soldered to the
Structure magnet assembly.
tinsel leads with high temperature silver
solder. The solder joint is then coated A patent-applied-for vent plate adds
additional cooling for the voice coil. 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
reduces power compression.
The cast aluminum frame is tough and
rigid, with the strength needed to hold the
cone and magnet 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 all these specially designed
components is a loudspeaker that is truly
amazing. The extremely high power
handling and available 1.4" of cone travel
combine for astonishing low frequency
output, while the possibility of small
enclosures adds a new dimension in
compact, high output sound
reinforcement systems.