Peavey 15 Low Rider Bruksanvisning

Peavey högtalare 15 Low Rider

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P E A V E Y E L E C T R O N I C S

Peavey Low Rider® 18

00560600

Peavey Low Rider® 15

00560310

The Low Rider driver series

represents a milestone in high-

powered sub-woofer design. An

incredible 1,600 Watt program

rating and extra-long cone

excursion provide maximum

amounts of amazingly clean, deep

bass.

The Low Rider is a 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 utilizes a

variation on the existing Kevlar®-

impregnated cones used on all

Black Widow® speakers. The cone

is stronger and tougher and uses

an innovative asymmetrical -M

surround for superior excursion

and motion control.

High quality spring terminals

accepting large gauge wire are

attached to large diameter high-

current tinsel leads with silver

solder to withstand high currents,

high temperatures and long

excursion.

The massive new voice coil uses

polyimide-insulated copper ribbon

wire, edge-wound and bonded

onto an incredibly durable and

heat-resistant polyimide composite

former. The coil’s winding length of

1.150” is an amazing 80% longer

than Peavey’s standard Black

Widow coil. The long coil has a

large surface area to dissipate

heat, and its increased length

drives the cone to a far higher

excursion. The coil is over coated

with a tough thermoset epoxy

for added durability, abrasion

resistance and heat dissipation.

The coil wires are solderless

diffusion welded to high-

conductivity OFHC copper ribbon

leads, which are embedded

inside the former assembly and

soldered to the tinsel leads with

high temperature silver solder.

The solder joint is then coated with

a special, thermally conductive

silicone adhesive for encapsulation

and heat dissipation.

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 nned

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 specically

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

amplication and high portability

applications such as DJ and small

touring bands. They provide solid

bass performance in extraordinarily

small enclosures. Band pass

enclosures also t 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 reex bandpass enclosures.

Sealed, innite bafe, horn,

transmission line and dual reex

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 reex bandpass

designs. As with the Low Rider

18, sealed, innite bafe, horn,

transmission line and dual reex

bandpass enclosures are not

recommended.

Active ltering must be included

with ampliers greater than 750

watts. This lter 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 amplier

power and reduce excessive cone

motion. Failure to use ltering 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 nished

system. Internal bracing is required

to improve the structural strength

of the cabinet. Low Riders can

generate enormous forces inside

the enclosure, and panels that

aren’t tiff enough will vibrate or

if the cabinet panels are not stiff

enough add more bracing.

Vents shown in the examples

require standard Schedule 40 PVC

pipe for vent construction. The pipe

should be dadoed tightly into the

back of the bafe and glued rmly

in place with high quality epoxy or

high strength industrial grade hot

glue. Roughen up the outside of

the pipe to improve the glue bond.

Radius the insides of the vent end

to improve air ow and reduce vent

noise.

Vents for these enclosures

are much longer than typical

for a sound reinforcement sub

woofer. This reects the special

characteristics of the Low Riders

design that make it possible to

combine a large, high excursion

woofer with an unusually small

enclosure. For best performance,

the inside ends of the vents should

be a distance of at least one vent

diameter from any interior wall of

the enclosure. The vent should

be straight, without elbow ttings

or other methods to bend it for

greater length. Vent diameter

should not be decreased, as high

air velocity will result in noise and

reduced power handling.

Be sure to allow for the

displacement of the vent, bracing

and woofer in your enclosure

design before building it. Mistakes

in net volume will mis-tune the

enclosure and can drastically

reduce performance. This requires

a considerably amount of planning

before construction, but is well

worth the extra effort.

Line the inside of the enclosure

with polyester ber batting such

as quilt stufng. For bandpass

loosely ll the sealed side, leave

the vented side empty, and

place the low Rider’s magnet in

the vented side for cooling. The

batting material should conform

to California bedding re codes.

Attach the batting with spray

adhesive or staples and keep

material away from the end of the

vent tube where it can be pulled in

by air ow.

Handles, protective corners,

cabinet covering, grille materials

and crossovers are available

through Peavey Accessories. Take

particular care when positioning

handles, as sub woofers tend to be

large and heavy.

Do not use ¼” phone plugs or

jacks in the construction of your

enclosures. Power capacity of

Low Rider sub woofers is well

above safe limits for phone

plugs and jacks. Neutrik®

Speakon® connector’s are highly

recommended, and internal

cabinet wiring should be at least 16

gauge stranded copper wire.

These instructions are a general

guideline for design. Proper

construction techniques, good

planning and common sense will

result in a reliable, high quality,

high performance system.

Peavey in no way accepts liability

for any damage, accidents or

injury that may result from design,

construction or operation of

enclosures using this information.

Due to Peavey’s continuing efforts

to improve products, features

and specications are subject to

change without notice.

PARAMETERS

Thiele-Small parameters for Low

Rider subwoofers follow. This data

is for use in designing enclosures.

Numerous software packages

are available that use this data

to simulate the response of the

driver and enclosure together

for optimum performance in any

application.

PARAMETER DEFINITIONS

Znom: The nominal impedance of

the driver in Ohms.

Revc: DC resistance of the driver

in ohms, also known as Re.

Sd: The functional radiating

surface area of the cone assembly

in meters 2.

BL: Efciency of the voice coil and

magnet system in Tesla meters.

Fo: Free air resonance. Also

known as Fs.

Vas: Volume of air having the

same compliance (springiness) as

the driver’s suspension.

Cms: Restorative force of

the driver’s suspension in

micrometers/Newton.

Mms: The total mass of the

moving parts of the loudspeaker,

including the air load, in grams.

Qms: Resonance characteristics

of the mechanical factors of the

loudspeaker.

Qes: Resonance characteristics

of electrical factors of the

loudspeaker.

Qts: Resonance characteristics

of the electrical and mechanical

factors combined together.

Xmax: Distance the cone can

move in one direction before the

coil begins to leave the magnetic

gap.

Le: Inductance of the voice coil in

millihenries.

SPL: Typical sound pressure level

at 1 watt, 1 meter.

no: Electrical to acoustical

conversion efciency in percent.

Vd: Air displacement of the driver

from negative Xmax to positive

Xmax.

Pmax: Maximum continuous

program power in watts.

Disp: Volume displaced by the

driver inside the cabinet when

mounted on its rear ange.

Produktspecifikationer

Varumärke:	Peavey
Kategori:	högtalare
Modell:	15 Low Rider

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