Peavey 1208-8sps BWX - 00560760 User manual

PEAVEY ELECTRONICS
Black Widow®BWX
1208-8sps BWX - 00560760
1208-4sps BWX - 00560780
1508-8sps BWX - 00560180
1508-4sps BWX - 00560140
1508-8cu BWX - 00560160
1508-8he BWX - 00560000
The 1508 and 1208 driver series
represent a new level of power
and performance for Black Widow
loudspeakers. Power handling is
increased by 40% over other com-
parable models, along with reduced
distortion and higher overall sound
quality.
The series includes 12” and 15” mod-
els in both 4 and 8 ohm impedances.
DESIGN
The BWX series uses a new cone
that is a variation on the existing
Kevlar®impregnated cones used on
all Black Widows. The new cone is
stronger and tougher, highly water re-
sistant, and has a specially designed
surround – a deep roll accordion
design on the 15”, and an innovative
asymmetrical-M style on the 12” that
improves mid range clarity. The dust
cap is also made of the same ex-
tremely strong material.
Voice coil assemblies on the new
drivers use the thermoset insulated
aluminum or copper ribbon wire,
bonded onto an incredibly durable,
heat resistant polyimide composite
former. The coil wires are solderless
diffusion welded to high conductivity
OFHC copper foil leads, which are
embedded inside the former assem-
bly 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 super
tough nylon composite spider using
a thermoset epoxy originally develop
for attaching nose cones to ICBM
missiles – truly an aerospace grade
adhesive. The spider and surround
are bonded to the frame with a high
strength toughened adhesive.
The magnet structure includes subtle
changes to its geometry that improve
power handling. While it appears the
same as the standard structure, and
replacement basket from the BWX
series will t on standard BW mag-
net structures, the improved power
handling will be compromised if the
standard structure is used.
These new drivers also adhere to
the familiar features of Black Widow
products: cast aluminum frames, re-
placeable basket assemblies, Ruba-
tex gaskets and high reliability, spring
loaded terminals are all used.

APPLICATIONS
The 1508 and 1208 drivers are
excellent choices for a wide range
of sound reinforcement, high level
playback, subwoofer, and monitor ap-
plications.
The 1508sps driver is an excellent
choice for general purpose sound re-
inforcement, and is available in both
4 and 8 ohm versions. Enclosure size
is reasonable and bass / mid-bass
performance is strong. Its versatility
includes sealed and bandpass enclo-
sure designs.
The 1508cu produces amazing bass
performance in small enclosures,
along with at mid-bass response for
an accurate, clean sound quality.
The 1508he is best used as the bot-
tom end of a full range enclosure. It
has very high efciency for superior
output in the mid-bass and mid-
range. However, for pure subwoofer
applications, the 1508sps or 1508cu
are better choices.
The 1208sps works well in sealed
or vented enclosure designs, and
its smooth, extended frequency
response makes it an excellent mid-
range performer. It is available in 4
and 8 ohm versions.
Because the 1208sps’s low frequen-
cy output is limited, it should be used
along with a subwoofer when re-
sponse below 60 Hz is needed. The
best application for the 1208sps is in
compact enclosures and very high
quality mid-bass/mid-range reproduc-
tion at high sound pressure levels.
The 15” drivers can work with cross-
over points as high as 2.0 kHz but
work best below 1.5 kHz. The 12” driv-
ers are usable to 3.5 kHz but perform
best below 2.5 kHz.
ENCLOSURES
To assist with the growing interest
in home built enclosure designs,
Peavey provides complete param-
eter data on these drivers, as well as
several recommended enclosures
for each model. This information and
much more can be found at www.
peavey.com.
The strength of the completed enclo-
sure has a great effect on the bass
performance of the nished system.
Box panels that aren’t stiff enough
will vibrate, canceling bass produced
by the woofer and creating unde-
sired sounds of their own. If your box
vibrates or you don’t think the box
panels are stiff enough, add more
bracing.
Vents used 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. Rough up
the outside of the pipe to improve the
glue bond.
Be sure to account for the displace-
ment of the vent, bracing, horn (if
used) and woofer or your enclosure
before building it or it will be smaller
than its intended volume. This can
reduce bass output and mis-tune the
enclosure.
Line the inside of the enclosure with
polyester ber batting such as quilt
stufng. The batting material should
conform to California bedding re
codes. Attach the batting with spray
adhesive or staples and keep materi-
al 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 cross-
overs are available through Peavey
Accessories.
When building a bandpass enclo-
sure, design a panel or door to be
removable for access to the woofer.
Use foam weather-strips to seal the
panel along with enough screws and
bracing to prevent leaks and buzzes.
Fill the sealed volume loosely with
polyester ber, but leave the vented
volume empty. Place the magnet of
the woofer in the vented side for im-
proved cooling.
Peavey does not supply hardware
required for the manufacturing of y-
ing systems, and recommends that
builders should not suspend or y
any enclosure not certied for such
applications.
These instructions are a general
guideline for design. Proper construc-
tion techniques, good planning and
common sense will result in a reli-
able, high quality, high performance
system.
Peavey in no way accepts liability for
any damage, accidents or injury that
may result from construction or use
of enclosure using this information.
Due to Peavey’s continuing efforts
to improve its products, features and
specications are subject to change
without notice.
PARAMETERS
Thiele-Small parameters for Black
Widow®1208 and 1508 drivers follow.
This data is for use in designing en-
closures. Numerous software pack-
ages 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

SPECIFICATIONS
Modle Name: 1508-8 sps 1508 sps-4 1508-8cu 1508-8he 1208-8 sps 1208-4 sps
Part Number 00560180 00560140 00560160 00360000 00560760 00560780
Size: 15” / 380 mm 15” / 380 mm 15” / 380 mm 15” / 380 mm 12” / 305 mm 12” / 305 mm
inches/mm nominal nominal nominal nominal nominal nominal
Frame OD 15- Frame OD 15- Frame OD 15- Frame OD 15- Frame OD 12- Frame OD 12-
1/4” / 387 mm 1/4” / 387 mm 1/4” / 387 mm 1/4” / 387 mm 1/4” / 311 mm 1/4” / 311 mm
Bolt circle Bolt circle Bolt Circle Bolt Circle Bolt circle Bolt circle
14 9/16” 14 9/16” 14 9/16” 14 9/16” 11 5/8” 11 5/8”
370 mm, 8 holes 370 mm, 8 holes 370 mm, 8 holes 370 mm, 8 holes 298 mm, 8 holes 298 mm, 8 holes
Cutout diameter Cutout diameter Cutout diameter Cutout diameter Cutout diameter Cutout diameter
14” / 356 mm 14” / 356 mm 14” / 356 mm 14” / 356 mm 10 15/16” / 278 mm 10 15/16” / 278 mm
Depth 4 31/32” Depth 4 31/32” Depth 4 31/32” Depth 4 31/32” Depth 3 17/32” Depth 3 17/32”
Impedance: 8 Ohms 8 Ohms 8 Ohms 8 Ohms 8 Ohms 4 Ohms
Power 2000 W peak 2000 W peak 2000 W peak 2000 W peak 2000 W peak 2000 W peak
Capacity: 1000 W program 1000 W program 1000 W program 1000 W program 1000 W program 1000 W program
500 W continous 500 W continous 500 W continous 500 W continous 500 W continous 500 W continous
per AES 2-1984 per AES 2-1984, per AES 2-1984, per AES 2-1984, per AES 2-1984, per AES 2-1984,
50 Hz - 500 Hz 50 Hz - 500 Hz 50 Hz - 500 Hz 50 Hz - 500 Hz 65 Hz - 650 Hz 65 Hz - 650 Hz
Sensitivity: 96.7 dB 1 Watt/ 97.5 dB 1 Watt/ 97.2 dB 1 Watt/ 100.3 dB 1 Watt/ 96.9 dB 1 Watt/ 96.9 dB 1 Watt/
1 meter 1 meter 1 meter 1 meter 1 meter 1 meter
Usable
Frequency 40 Hz - 2 kHz 40 Hz - 2 kHz 40 Hz - 2 kHz 40 Hz - 2 kHz 50 Hz - 3.5 kHz 50 Hz - 3.5 kHz
Range:
Cone: Kevlar® Kevlar® Kevlar® Kevlar® Kevlar® Kevlar®
impregnated impregnated impregnated impregnated impregnated impregnated
cellulouse cellulouse cellulouse cellulouse cellulouse cellulouse
Voice Coil
Diameter: 4.0” 100 mm 4.0” 100 mm 4.0” 100 mm 4.0” 100 mm 4.0” 100 mm 4.0” 100 mm
Voice Coil
Material: Aluminum ribbon Aluminum ribbon Aluminum ribbon Aluminum ribbon Aluminum ribbon Aluminum ribbon
wire wire wire wire wire wire
Polymide- Polymide- Polymide- Polymide- Polymide- Polymide-
impregnated impregnated impregnated impregnated impregnated impregnated
berglass berglass berglass berglass berglass berglass
former former former former former former
Nomex®stiffner Nomex®stiffner Nomex®stiffner Nomex®stiffner Nomex®stiffner Nomex®stiffner
Solderless Solderless Solderless Solderless Solderless Solderless
diffusion welded diffusion welded diffusion welded diffusion welded diffusion welded diffusion welded
OFHC copper OFHC copper OFHC copper OFHC copper OFHC copper OFHC copper
leads leads leads leads leads leads
Net Weight: 17 lbs. / 7.7 kg 17 lbs. / 7.7 kg 17 lbs. / 7.7 kg 17 lbs. / 7.7 kg 16 lbs. / 7.3 kg 17 lbs. / 7.3 kg
DRIVER PRAMETERS
Xnom (Ohms) 8 4 8 8 8 4
Revc (Ohms) 5.27 3.30 5.91 5.32 5.43 3.47
Sd (M2) 0.084 0.084 0.084 0.084 0.052 0.052
BL (TM) 15.27 12.72 20.84 16.04 15.13 14.09
Vas (liters) 185.9 163.6 199.6 182.4 54.6 66.2
Fo Hz. 41.9 45.9 36.7 51.2 56.1 55.4
Cms (uM/N) 158.5 163.3 199.2 182.0 142.2 172.5
Mms (gm) 77.60 73.50 93.90 52.90 50.70 47.90
Qms 10.36 11.20 9.31 10.60 9.51 7.09
Qes 0.475 0.433 0.295 0.352 0.448 0.311
Qts 0.437 0.417 0.286 0.341 0.428 0.298
Xmax (mm) 4.7 2.3 4.7 1.9 4.7 2.3
Le (mH) 0.42 2.11 0.58 0.34 0.36 0.19
SPL (1W 1m) 96.7 97.5 97.2 100.3 96.9 96.6
no (%) 2.90 3.60 3.30 6.70 3.10 2.90
Vd (milliliters) 48.1/789 23.6/386 48.1/789 19.5/319 29.8/488 18.4/302
Pmax (w. pgm.) 1000 1000 1000 1000 1000 1000
Disp in 3 / ml 197 / 3229 197 / 3229 197 / 3229 197 / 3229 109 / 1797 109 / 1797

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:
For 1508-4/8sps:
1. Small Vented Box
Excellent performance of compact, general purpose use. Warm mid-bass response.
F3 is 51Hz
2. Medium Vented Box
Terric compromise of bass performance and enclosure size. Warm mid-bass response.
F3 is 45 Hz
3. Large Vented Box
Big box, big bass! Great as a subwoofer or the bottom end of a large multi-way enclosure design. F3 is 41 Hz
4. Single Reex Bandpass enclosure
Special enclosure design that uses the enclosure as an acoustic lter for shaped response. Great choice for a compact
subwoofer system. Response is 48 Hz – 138 Hz
5. Sealed Box
May be preferred for stage monitors to control boominess and low frequency feedback on stage. F3 is 73Hz
For 1508-8cu:
1. Small Vented Box
An incredibly small enclosure with outstanding bass performance for its size. F3 is 53 Hz
2. Medium Vented Box
Small box with powerful bass and predictable, at response down to an F3 is 45 Hz
3. Large Vented Box
Strong, at response with bass extension to an F3 is 41 Hz. Deep, predictable bass quality for great subwoofer and multi-
way system performance.
For 1508-8he:
1. Small Vented Box
Small box, big voice. Very high efciency and good bass performance in a small enclosure.
F3 is 60 Hz
2. Medium Vented Box
Super-high efciency in a popular enclosure size. F3 is 55 Hz. Great choice for use in a full range system.
3. Large Vented Box
Big and loud! Super efciency and strong bass performance to an F3 is 50 Hz. However, for subwoofer only use the sps
and cu versions which are better performers.
For 1208-4/8sps:
1. Small Vented Box
Very small system with excellent voice range performance. Great choice as the mid-range of a sub/satellite system. F3 is
79 Hz. Also good for use in a stage monitor.
2. Sealed Box
Excellent choice for a dedicated mid-bass/mid-range in a multiway system, or stage monitor.
F3 is 105Hz
3. Large Vented Box
Still not all that large, with very usable bass response. Great for a compact, 2-way box.
F3 is 61 Hz.

The 1508he is best used as the bottom
end of a full range enclosure. It has very
high efficiency for superior output in the
mid-bass and mid-range. However, for
pure subwoofer applications, the 1508sps
or 1508cu are better choices.
The 1208sps works well in sealed or
vented enclosure designs, and its
smooth, extended frequency response
makes it an excellent mid-range
performer. It is available in 4 and 8 Ohm
versions.
Because the 1208sps’s low frequency
output is limited, it should be used along
with a subwoofer when response below
60 Hz is needed. The best application for
the 1208sps is in compact enclosures
and very high quality mid-bass/mid-range
reproduction at high sound pressure
levels.
The 15" drivers can work with crossover
points as high as 2.0 kHz but work best
below 1.5 kHz. The 12" drivers are
usable to 3.5 kHz but perform best below
2.5 kHz.
ENCLOSURES
To assist with the growing interest in
home-built enclosure designs, Peavey
provides complete parameter data on
these drivers as well as several
recommended enclosures for each
model. This information and much more
can be found at www.peavey.com.
Enclosures should be built of best-quality
3/4" marine or other high grade plywood.
Particle board and MDF enclosures can
be easily damaged and are not
recommended for portable applications,
but may be acceptable for permanent
installation. If construction plywood must
be used, inspect each sheet thoroughly
and use at least BC grade.
Use a quality wood glue, fit joints tightly,
and add internal bracing to stiffen the
panels of the enclosure. Look at
commercially designed enclosures for
ideas on good brace placement. Use
wood screws or a pneumatic nailer to
assemble the enclosure during gluing, to
maximize joint strength.
Strength of the completed enclosure has
a great effect on the bass performance of
the finished system. Box panels that
aren’t stiff enough will vibrate – cancelling
bass produced by the woofer, and
creating undesired sounds of their own. If
your box vibrates or you don’t think the
box panels are stiff enough, add more
bracing.
Vents used in the examples require
standard Schedule 40 PVC pipe for vent
construction. The pipe should be dadoed
tightly into the back of the baffle and
glued firmly in place with high quality
epoxy or high strength industrial grade
hot glue. Rough up the outside of the
pipe to improve the glue bond.
Be sure to account for the displacement
of the vent, bracing, horn (if used) and
woofer or your enclosure before building
it, or it will be smaller than its intended
volume. This can reduce bass output and
mis-tune the enclosure.
Line the inside of the enclosure with
polyester fiber batting such as quilt
stuffing. The batting material should
conform to California bedding fire codes.
Attach the batting with spray adhesive or
staples, and keep it away from the end of
the vent tube where it could be pulled in
by air flow. Handles, protective corners,
cabinet covering, grille materials and
crossovers are available through Peavey
Accessories.
When building a bandpass enclosure,
design a panel or door to be removable
for access to the woofer. Use foam
weather-strip to seal the panel along with
enough screws and bracing to prevent
leaks and buzzes. Fill the sealed volume
loosely with polyester fiber, but leave the
vented volume empty. Place the magnet
of the woofer in the vented side for
improved cooling.
Peavey does not supply hardware
required for the manufacturing of flying
systems, and recommends that builders
should not suspend or fly any enclosure
not certified for such applications.
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 construction or use of
enclosures using this information.
Features and specifications are subject to
change without notice.
PARAMETERS
Thiele-Small parameters for Black
Widow® 1208 and 1508 drivers 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 meters2.
BL: Efficiency of the voice coil and
magnet system in Telsa Meters.
Fo:Also known as Fs, the free air
resonance of the driver.
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 efficiency in percent.
Vd:Air displacement of the driver
from negative Xmax to positive Xmax, in
milliliters.
Pmax:Maximum continuous program
power in Watts.
Disp: Volume displaced by the driver
inside the cabinet when mounted on its
rear flange, in inches3.
SUGGESTED ENCLOSURES
For those who want to build their own enclosures, but don’t want to go through the design process using driver parameters, we provide the following optimized designs:
FOR 1508-4/8sps:
Sealed enclosure
May be preferred for stage monitors to control boominess and low frequency feedback on stage. F3is 73 Hz.
Small vented enclosure
Excellent performance for compact, general purpose use. Warm mid-bass response. F3is 51 Hz.
Medium vented enclosure
Terrific compromise of bass performance and enclosure size. Warm mid-bass response. F3is 45 Hz.
Large vented enclosure
Big box, big bass! Great response as a subwoofer or the bottom end of a large multi-way enclosure design. F3is 41 Hz.
Single reflex bandpass enclosure
Special enclosure design that uses the enclosure as an acoustic filter for shaped response. Great choice for a compact subwoofer system. Response is 48 Hz – 138 Hz.
FOR 1508-8cu:
Small vented enclosure
An incredibly small enclosure with outstanding bass performance for its size. F3is 53 Hz.
Medium vented enclosure
Small box with powerful bass and predictable, flat response down to an F3of 45 Hz.
Large vented enclosure
Strong, flat response with bass extension to an F3of 41 Hz. Deep, predictable bass quality for great subwoofer and multi-way system performance.
FOR 1508-8he:
Small vented enclosure
Small box, big voice. Very high efficiency and good bass performance in a small enclosure. F3is 60 Hz.
Medium vented enclosure
Super-high efficiency in a popular enclosure size. F3is 55 Hz. Great choice for use in a full-range system.
Large vented enclosure
Big and loud! Super efficiency and strong bass performance to an F3of 50 Hz. However, for subwoofer-only use the sps and cu versions which are better performers.
FOR 1208-4/8sps:
Sealed enclosure
Excellent choice for a dedicated mid-bass/mid-range in a multiway system, or stage monitor. F3is 105 Hz.
Small vented enclosure
Very small system with excellent voice range perforance. Great choice as the mid-range of a sub/satellite system. F3is 79 Hz. Also good for use in a stage monitor.
Large vented enclosure
Still not all that large, with very usable bass response. Great for a compact, 2-way box. F3is 61 Hz.
SPECIFICATIONS
Model Name: 1508-8sps 1508sps-4 1508-8cu 1508-8he 1208-8sps 1208-4sps
Part #: 00452850 00452860 00452870 00457680 00452830 00452840
Size: inches/mm 15" / 380 mm 15" / 380 mm 15" / 380 mm 15" / 380 mm 12" / 305 mm 12" / 305 mm
nominal nominal nominal nominal nominal nominal
Frame OD 15- Frame OD 15- Frame OD 15- Frame OD 15- Frame OD 12- Frame OD 12-
1/4" / 387 mm 1/4" / 387 mm 1/4" / 387 mm 1/4" / 387 mm 1/4" / 311 mm 1/4" / 311 mm
Bolt circle Bolt circle Bolt circle Bolt circle Bolt circle Bolt circle
14-9/16" 14-9/16" 14-9/16" 14-9/16" 11- 5/8" 11- 5/8"
370 mm, 8 holes 370mm,8holes 370 mm, 8 holes 370 mm, 8 holes 295 mm, 8 holes 295 mm, 8 holes
Cutout diameter Cutout diameter Cutout diameter Cutout diameter Cutout diameter Cutout diameter
14" / 356 mm 14" / 356 mm 14" / 356 mm 14" / 356 mm 10 15/16" / 278 mm 10 15/16" / 278 mm
Depth 4-31/32" Depth 4-31/32" Depth 4-31/32" Depth 4-31/32" Depth 3-17/32" Depth 3-17/32"
126 mm 126 mm 126 mm 126 mm 90 mm 90mm
Impedance: 8 Ohms 4 Ohms 8 Ohms 8 Ohms 8 Ohms 4 Ohms
Power Capacity: 2000 W peak 2000 W peak 2000 W peak 2000 W peak 2000 W peak 2000 W peak
1000 W program 1000 W program 1000 W program 1000 W program 1000 W program 1000 W program
500 W continuous 500 W continuous 500 W continuous 500 W continuous 500 W continuous 500 W continuous
per AES 2-1984, per AES 2-1984, per AES 2-1984, per AES 2-1984, per AES 2-1984, per AES 2-1984,
50 Hz - 500 Hz 50 Hz - 500 Hz 50 Hz - 500 Hz 50 Hz - 500 Hz 65 Hz - 650 Hz 65 Hz - 650 Hz
Sensitivity: 96.7 dB 1 Watt / 97.5 dB 1 Watt / 97.2 dB 1 Watt / 100.3 dB 1 Watt / 96.9 dB 1 watt / 96.6 dB 1 watt /
1 meter 1 meter 1 meter 1 meter 1 meter 1 meter
Usable
frequency range: 35 Hz ~ 2 kHz 35 Hz ~ 2 kHz 35 Hz ~ 2 kHz 40 Hz ~ 2 kHz 50 Hz ~ 3.5 kHz 50 Hz ~ 3.5 kHz
Cone: Kevlar®Kevlar Kevlar Kevlar Kevlar Kevlar
impregnated impregnated impregnated impregnated impregnated impregnated
cellulose cellulose cellulose cellulose cellulose cellulose
Voice coil diam: 4.0" / 100 mm 4.0" / 100 mm 4.0" / 100 mm 4.0" / 100 mm 4.0" / 100 mm 4.0" / 100 mm
Voice coil material: Aluminum ribbon Aluminum ribbon Copper ribbon Aluminum ribbon Aluminum ribbon Aluminum ribbon
wire wire wire wire wire wire
Polyimide- Polyimide- Polyimide- Polyimide- Polyimide- Polyimide-
impregnated impregnated impregnated impregnated impregnated impregnated
fiberglass fiberglass fiberglass fiberglass fiberglass fiberglass
former former former former former former
Nomex®stiffener Nomex stiffener Nomex stiffener Nomex stiffener Nomex stiffener Nomex stiffener
Solderless Solderless Solderless Solderless Solderless Solderless
diffusion welded diffusion welded diffusion welded diffusion welded diffusion welded diffusion welded
OFHC copper OFHC copper OFHC copper OFHC copper OFHC copper OFHC copper
leads leads leads leads leads leads
Net weight: 17 lbs. / 7.7 kg 17 lbs. / 7.7 kg 17 lbs. / 7.7 kg 17 lbs. / 7.7 kg 16 lbs. / 7.3 kg 16 lbs. / 7.3 kg
Driver Parameters
Znom(Ohms) 8 4 8 8 8 4
Revc (Ohms) 5.27 3.30 5.91 5.32 5.43 3.47
Sd(M2) 0.084 0.084 0.084 0.084 0.052 0.052
BL (T/M) 15.37 12.72 20.84 16.04 15.13 14.09
Vas (liters) 185.9 163.6 199.6 182.4 54.6 66.2
Fo, Hz. 41.9 45.9 36.7 51.2 56.1 55.4
Cms (uM/N) 158.5 163.3 199.2 182 142.2 172.5
Mms (gm) 77.6 73.5 93.9 52.9 50.7 47.9
Qms 10.357 11.197 9.314 10.604 9.513 7.085
Qes 0.457 0.433 0.295 0.352 0.448 0.311
Qts 0.437 0.417 0.286 0.341 0.428 0.298
Xmax (mm) 4.7 2.3 4.7 1.9 4.7 2.3
Le(mH) 0.418 0.211 0.583 0.336 0.359 0.186
SPL (1W 1m) 96.7 97.5 97.2 100.3 96.9 96.6
no(%) 2.9 3.6 3.3 6.7 3.1 2.9
Vd(milliliters) 789 386 789 319 488 302
Pmax (w. pgm.) 1000 1000 1000 1000 1000 1000
Disp in3/ ml 197 / 3229 197 / 3229 197 / 3229 197 / 3229 109 / 1797 109 / 1797
1 0
Frequency, Hz
5 0 1 0 0 Hz 5 0 0 1 K
SPL,dB
1 0 0
9 5
9 0
8 5
8 0
7 5
7 0
6 5
6 0
1508sps sealed box
1508sps small vented box
1508sps medium vented box
1508sps large vented box
1508sps single reflex bandpass
1 0 Frequency, Hz 5 0 1 0 0 Hz 5 0 0 1 K
SPL, dB
1 0 0
9 5
9 0
8 5
8 0
7 5
7 0
6 5
6 0
1508-8cu small vented box
1508-8cu medium vented box
1508-8cu large vented box
1508sps 1508-8cu
1 0
Frequency, Hz
5 0 1 0 0 Hz 5 0 0 1 K
SPL, dB
1 0 5
1 0 0
9 5
9 0
8 5
8 0
7 5
7 0
6 5
1508he small vented box
1508he medium vented box
1508he large vented box
1 0
Frequency, Hz
5 0 1 0 0 Hz 5 0 0 1 K
SPL, dB
1 0 5
1 0 0
9 5
9 0
8 5
8 0
7 5
7 0
6 5
1208sps sealed box
1208sps small vented box
1208sps large vented box
1508he 1208sps
Kevlar®is a registered trademark of DuPont.
Rubatex®is a registered trademark of
Rubatex Corporation.
Nomex®is a registered trademark of
DuPont.

ENCLOSURE NET VOLUME VENT DIAMETER VENT LENGTH Vb BOX TUNING F3, -3 Db
Cubic feet/liters (qty) inches/mm inches/mm frequency in Hz point in Hz
1508 SPS
Sealed box 1.5 / 42.5 n/a n/a 87 (resonance) 72
Small vented box 3.0 / 84.9 (2) 4” / 102 6 7/8” / 175 45 51
Medium vented box 4.0 / 113.3 (2) 4” / 102 5” / 127 43 45
Large vented box 5.0 / 141.6 (2) 4’ / 102 4 3/8” / 111 40 41
Single reex Sealed 2.25 / 63.7
Bandpass box Vented 1.75 / 49.6 (2) 6” / 152 7 3/8” / 187 83 48 - 138
1508 cu
Small vented box 2.0 / 56.6 (2) 4” / 102 10 5/8” / 270 47 53
Medium vented box 3.0 / 84.9 (2) 4” / 102 6 7/8” / 175 45 53
Large vented box 4.0 / 113.3 (2) 4” / 102 5” / 127 43 41
1508 he
Small vented box 3.0 / 84.9 (2) 6” / 152 7 3/4” / 197 60 60
Medium vented box 4.0 / 113.3 (2) 6” / 152 5 1/9” / 130 58 55
Large vented box 5.0 / 141.6 (2) 6” / 152 4 3/8” / 111 54 50
1208 SPS
Sealed box 0.65 / 18.4 n/a n/a 106 (resonance) 105
Small vented box 0.8 / 22.6 (1) 4” / 102 4 1/2” / 114 70 79
Large vented box 1.4 / 39.6 (2) 4” / 102 1 7/8” 65 61
Black
Widow® BWX
00452830 1208-8sps BWX
00452840 1208-4sps BWX
00452850 1508-8sps BWX
00452860 1508-4sps BWX
00452870 1508-8cu BWX
00457680 1508-8he BWX
INTRODUCTION
The 1508 and 1208 driver series
represent a new level of power and
performance for Black Widow
loudspeakers. Power handling is
increased by 40% over other comparable
models, along with reduced distortion and
higher overall sound quality.
The series includes 12" and 15" models
in both 4 and 8 Ohm impedances.
DESIGN
The ’08 BWX series uses a new cone
that is a variation on the existing Kevlar®-
impregnated cones used on all Black
Widows. The new cone is stronger and
tougher, highly water resistant, and has a
specially designed surround – a deep-roll
accordion design on the 15", and an
innovative asymmetrical-M style on the
12" that improves mid-range clarity. The
dust cap is also made of the same
extremely strong material.
Voice coil assemblies on the new drivers
use thermoset-insulated aluminum or
copper ribbon wire, bonded onto an
incredibly durable, heat resistant
polyimide composite former. The coil
wires are solderless diffusion welded to
high-conductivity OFHC copper foil 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 super-tough nylon
composite spider using a thermoset
epoxy originally developed for attaching
nose cones on ICBM missiles –truly an
aerospace-grade adhesive. The spider
and surround are bonded to the frame
with a high strength toughened-
cyanoacrylate adhesive, which is also
used to bond the dust cap to the cone.
The magnet structure includes subtle
changes to its geometry that improve
power handling. While it appears the
same as the standard structure, and
replacement baskets from the ’08 BWX
series will fit on standard BW magnet
structures, the improved power handling
will be compromised if the standard
structure is used.
These new drivers also adhere to the
familiar features of Black Widow
products: cast aluminum frames,
replaceable basket assemblies, Rubatex
gaskets and high reliability, spring-loaded
terminals are all used.
APPLICATIONS
The 1508 and 1208 drivers are excellent
choices for a wide range of sound
reinforcement, high-level playback,
subwoofer, and monitor applications.
The 1508sps driver is an excellent choice
for general purpose sound reinforcement,
and is available in both 4 and 8 Ohm
versions. Enclosure size is reasonable
and bass / mid-bass performance is
strong. Its versatility includes sealed and
bandpass enclosure designs.
The 1508cu produces amazing bass
performance in small enclosures, along
with flat mid-bass response for an
accurate, clean sound quality.
SPECS
PEAVEY ELECTRONICS
®
ENCLOSURES Net Volume Vent diameter Vent length Vbbox tuning F3, -3 dB
cubic feet/liters (qty) inches/mm inches/mm frequency in Hz point in Hz
1508SPS
Sealed box 1.5 / 42.5 n/a n/a 87 (resonance) 72
Small vented box 3.0 / 84.9 (2) 4" / 102 6-7/8"/ 175 45 51
Medium vented box 4.0 / 113.3 (2) 4" / 102 5" / 127 43 45
Large vented box 5.0 / 141.6 (2) 4" / 102 4-3/8" / 111 40 41
Single Reflex Sealed 2.25 / 63.7
Bandpass box Vented 1.75 / 49.6 (2) 6" / 152 7-3/8" / 187 83 48 - 138
1508cu
Small vented box 2.0 / 56.6 (2) 4" / 102 10-5/8" / 270 47 53
Medium vented box 3.0 / 84.9 (2) 4" / 102 6-7/8" / 175 45 45
Large vented box 4.0 / 113.3 (2) 4" / 102 5" / 127 43 41
1508he
Small vented box 3.0 / 84.9 (2) 6" / 152 7-3/4" / 197 60 60
Medium vented box 4.0 / 113.3 (2) 6" / 152 5-1/8" / 130 58 55
Large vented box 5.0 / 141.6 (2) 6" / 152 4-3/8" / 111 54 50
1208SPS
Sealed box 0.65 / 18.4 n/a n/a 106 (resonance) 105
Small vented box 0.8 / 22.6 (1) 4"/102 4-1/2"/ 114 70 79
Large vented box 1.4 / 39.6 (1) 4"/102 1-7/8"/ 48 65 61
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"
nut driver.
3.. After screws are removed, lift the magnet structure off the basket frame.
4. Clean the voice coil “gap” before magnet structure is put on new replacement basket. (See
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
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
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 2
STEP 3 STEP 4
®
Features and specifications subject to change without notice.
Peavey Electronics Corporation • 711 A Street • Meridian • MS • 39301
[phone] • FAX [phone] • www.peavey.com
©2001 Printed in the U.S.A. 5/01
80301841
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 39305
Sealed Vented Single Reflex Bandpas
SEALED VENTED SINGLE REFLEX BANDPATH

Peavey BWX®
speakers
feature convenient
eld-replaceable
baskets. Replaceable
baskets eliminate the
need for re-coning
speakers and the
frustration and delays
associated with the
re-coning process.
It only takes a few
minutes to replace a
basket and you are
back in business.
It just can’t get any
easier than the four
steps outlined here.
1Remove three screws on back of magnet structure.
2 Lift the magnet structure off the basket frame.
3 Clean the voice coil “gap”.
4 Align screw holes, lower structure into place on new
basket frame, insert screws and tighten.
12
34
Baskets are replaced in four easy steps:

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.
Features and specications subject to change without notice.
Peavey Electronics Corporation • 5022 Hartley Peavey Drive • Meridian • MS • 39305
[phone] • FAX [phone] • www.peavey.com
©2011 Printed in the U.S.A. 10/11 80306023
Logo referenced in Directive 2002/96/EC Annex IV
(OJ(L)37/38,13.02.03 and defined in EN 50419: 2005
The bar is the symbol for marking of new waste and
is applied only to equipment manufactured after
13 August 2005
ONE YEAR LIMITED WARRANTY
NOTE: For details, refer to the warranty statement. Copies of this statement may be obtained online at www.peavey.com.