Page 1
SPECIFICATIONS SP™ 4BX
Box tuning frequency:
Low frequency section: 58 Hz
Crossover frequency
(internal passive):
Low frequency – high frequency
1,800 Hz
Recommended Active Crossover
Frequency Region and Slope:
Low Frequency – High Frequency:
1,800 Hz at 12 dB/octave
Time Offset:
Low frequency: 0.0 ms
Mid/high frequency: 0.48 ms
Impedance (Z):
Full range:
Nominal: 4.0 Ω
Minimum: 3.4 Ω
Low frequency:
Nominal: 4.0 Ω
Minimum: 3.2 Ω
Passive HF:
Nominal: 8.0 Ω
Minimum: 5.4 Ω
Frequency response, 1 meter on-axis,
swept-sine in anechoic environment:
52 Hz to 17 kHz (±3 dB)
Usable low frequency limit
(-10 dB point):
45 Hz
Power handling:
Full range:
1,000 watts continuous
2,000 watts program
4,000 watts peak
Low frequency section:
1,000 watts continuous
2,000 watts program
4,000 watts peak
High frequency section:
60 watts continuous
120 watts program
240 watts peak
Sound pressure level, 1 watt,
1 meter in anechoic environment:
Full range:
100.0 dB SPL (2.83 V input)
Low frequency section:
101 dB SPL (2.83 V input)
Mid/high frequency section:
107 dB SPL (2.83 V input)
Maximum sound pressure level
(1 meter):
Full range:
130 dB SPL continuous
136 dB SPL peak
Low frequency section:
131 dB SPL continuous
137 dB SPL peak
Passive mid/high frequency section:
129 dB SPL continuous
135 dB SPL peak
Radiation angle measured at
-6 dB point of polar response:
90° horizontal by 40° vertical; the
vertical main polar lobe is angled
down 10° with respect to straight
ahead being +10, -30°
Transducer complement:
Low frequency section:
2 x 15" woofer, vented
Black Widow® 1508-8 HE SF
High frequency section:
1 x .875" exit /51 mm voice coil
RX™ 22 compression driver on an
asymmetrical Quadratic Throat CD
horn
Input connections:
Full range: two 1/4" phone jacks,
one four-pin twist lock connector &
bi-amp capability provided via an
internal wiring jumper
Enclosure materials and finish:
Hardwood panel coated with
Peavey’s heavy-duty HammerHead™
finish. Casters are incorporated for
portability.
Mounting provisions:
This unit is not designed for
overhead suspension; Four large
rubber feet on bottom for floor use.
Dimensions (H x W x D):
Front:
49.875” x 20.5” x 24.31”
1266.83 mm x 520.7 mm x 617.55 mm
Rear:
49.875” x 12.75” x 24.31”
1266.83 x 323.85 mm x 617.55 mm
Net weight:
130.5 lbs. (59.2 kg)
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SPECIFICATIONS SP™ 4BX
Features
• Quasi three-way, full-range sound
reinforcement system
• RX™22 compression driver with
ferrofluid cooling
• Two 15” BWX Black Widow® 4” VC
woofer
• 2,000 watts program, 4,000 watts
peak
• Patented Quadratic Throat
Waveguide™ technology
• Asymmetrical horn aims the sound
down 10° (at the audience, not over
their heads)
• Sound Guard™ III tweeter protection
• Full-range inputs include a four-pin
twist lock connector and two 1/4”
phone jacks
• Bi-amp capability via internal wiring
jumper
• Trapezoidal enclsoure
• Casters are incorporated for
improved portability
Description
The SP 4BX is a quasi three-way
speaker system comprised of two
15” Black Widow BWX SF series
woofer with Kevlar® impregnated
cones, and an RX 22 compression
driver loaded onto a constant
directivity Quadratic Throat
Waveguide.
The SP 4BX has a trapezoidalshaped enclosure, which
reduces the buildup of standing
waves inside the enclosure to
minimize mid-bass and midrange
coloration. The enclosure is
constructed of a hardwood panel
coated with Peavey’s heavy-duty
HammerHead™ UV stabilized
polyurea finish for increased
durability and ruggedness.
Casters are incorporated to
improve portability. A full-length,
wrap-around perforated steel grille
protects the front of the enclosure.
The two-way system consists
of two 15” Black Widow
BWX SF series woofers with
Kevlar-impregnated cones and
dust caps. The woofer section is
capable of over 1,000 watts of
continuous power handling (AES
Std 2-1984). The high frequencies
are handled by a 2” RX22 titanium
diaphragm compression driver
utilizing ferrofluid cooling.
This superb driver is coupled
to a Quadratic Throat Constant
directivity waveguide (U.S. Patent
#6,059,069) to provide smooth,
even response, low distortion and
good high frequency dispersion.
This horn has an asymmetrical
vertical polar response, aiming the
main energy lobe down 10 degrees
so it is aimed at the audience
instead of over their heads.
This reduces ceiling reflections,
ensuring greater clarity and gain
before feedback. The RX22 driver
features the Radialinear Planar
Phase Correction System (U.S.
Patent #6,064,745), which provides
a smooth and extended high
frequency response.
Full-range input connection to
the system is made via two 1/4”
phone jacks and a four-pin twist
lock connector in parallel, and
bi-amping flexibility is provided
via an internal jumper that can
be accessed by unscrewing and
removing the input cup. The
internal passive crossover features
the Peavey-exclusive Sound
Guard protection circuit for the
tweeter and an advanced topology
crossover with high-performance
components to provide high
power handling and reliability.
Sound Guard provides long- and
medium-term driver overload
protection without impairing
musical transients or dynamics
on either the midrange or the
tweeter when the system is used
full range or when it is bi-amped.
The crossover provides driver
roll-off and protection as well as
driver EQ for the woofer and horn
for a clean, clear and smooth
response. High-quality, reliable
crossover components include
polypropylene capacitors and
high-current inductors. The optimal
integration of the crossover with
the selected drivers results in a
smooth frequency response from
52 Hz to 17 kHz.
Despite its compact dimensions,
this system can produce very high
sound levels and handle 2,000
watts program power, resulting
in high articulation and long-term
reliability.
Frequency response
This measurement is useful in
determining how accurately a given
unit reproduces an input signal.
The frequency response of the SP
4BX is measured at a distance of
1 meter using a 1 watt (into the
nominal impedance) swept-sine
input signal. As shown in figure
1, the selected drivers in the SP
4BX combine to give a smooth
frequency response from 52 Hz to
17 kHz.
Power handling
There are many different
approaches to power handling
ratings. Peavey rates this
loudspeaker system’s power
handling using a full-range form
of the AES Standard 2-1984. Using
audio band 20 Hz to 20 kHz pink
noise with peaks of four times
the RMS level, this strenuous
test signal assures the user that
every portion of this system can
withstand today’s high technology
music. This rating is contingent
upon having a minimum of 3 dB
amplifier headroom available.
Harmonic distortion
Second and third harmonic
distortions vs. frequency are
plotted in figures 3 & 4 for two
power levels. Ten percent (10%) of
rated input power and either one
percent (1%) of rated input power
or 1 watt, whichever is greater.
Distortion is read from the graph
as the difference between the
fundamental signal (frequency
response) and the desired
harmonic. As an example, a
distortion curve that is down 40 dB
from the fundamental is equivalent
to 1% distortion.
Mounting
This unit is not designed for
overhead suspension. Four large
rubber feet are included on the
bottom for floor use.
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20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
1
2
3
5
10
20
30
50
100
Impedance
Z
(
)
Figure 2
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
60
70
80
90
100
110
dB SPL (re 20 Pa)
Amplitude Response (1W 1m On-Axis)
Figure 1
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
40
50
60
70
80
90
100
110
dB SPL (re 20 Pa)
Harmonic Distortion :1% Rated Power
Figure 3
3rd Harmonic
2nd Harmonic
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
50
60
70
80
90
100
110
120
dB SPL (re 20 Pa)
Harmonic Distortion : 10% Rated Power
Figure 4
3rd Harmonic
2nd Harmonic
SPECIFICATIONS SP™ 4BX
Architectural & engineering
specifications
The loudspeaker system shall have
an operating bandwidth of 52 Hz
to 17 kHz. The nominal output level
shall be 100.0 dB when measured
at a distance of 1 meter with
an input of 1 watt. The nominal
impedance shall be 4.0 ohms.
The maximum continuous power
handling shall be 1,000 Watts,
with maximum program power of
2,000 watts, peak power input of at
least 4,000 watts and a minimum
amplifier headroom of 3 dB. The
nominal radiation geometry shall
be 90 degrees symmetrical about
the center axis in the horizontal
plane, and +10, -30 degrees about
the center axis in the vertical plane.
The outside dimensions shall be
49.875” inches high by 20.5 inches
wide by 24.31” inches deep. The
weight shall be 130.5 lbs. The
loudspeaker system shall be a
Peavey model SP™4BX.
3 + 2 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 2898,
Meridian, Mississippi 39301-2898.
Page 4
SPECIFICATIONS SP™ 4BX
SP 4BX Input Plate
80305761
Features and specifications are subject to change without notice.
Peavey Electronics Corporation • 711 A Street • Meridian, MS 39305 • (601) 483-5365 • www.peavey.com
©2011 Printed in the U.S.A. 03/11
Page 5
Page 6
PEAVEY ELECTRONICS CORPORATION LIMITED WARRANTY
Effective Date: 11/01/2011
What This Warranty Covers
Your Peavey Warranty covers defects in material and workmanship in Peavey products purchased and serviced in the U.S.A. and Canada.
What This Warranty Does Not Cover
The Warranty does not cover: (1) damage caused by accident, misuse, abuse, improper installation or operation, rental, product modification or neglect; (2) damage occurring
during shipment; (3) damage caused by repair or service performed by persons not authorized by Peavey; (4) products on which the serial number has been altered, defaced or
removed; (5) products not purchased from an Authorized Peavey Dealer.
Who This Warranty Protects
This Warranty protects only the original purchaser of the product.
How Long This Warranty Lasts
The Warranty begins on the date of purchase by the original retail purchaser. The duration of the Warranty is as follows:
Product Category Duration
Guitars/Basses, Amplifiers, Preamplifiers, Mixers, Electronic Crossovers and Equalizers 2 years *(+ 3 years)
Drums 2 years *(+ 1 year)
Enclosures 3 years *(+ 2 years)
Digital Effect Devices and Keyboards and MIDI Controllers 1 years *(+ 1 year)
Microphones 2 years
Speaker Components 1 year
(incl. Speakers, Baskets, Drivers, Diaphragm Replacement Kits and Passive Crossovers)
Tubes and Meters 90 Days
Cables Limited Lifetime
AmpKit Link, Xport, Rockmaster Series, Strum’n Fun, RetroFire, GT & BT Series Amps 1 year
Marvel Jr. Guitar 90 Days
[* Denotes additional Warranty period applicable if optional Warranty Registration Card is completed and returned to Peavey by original retail purchaser within 90 days of purchase.]
What Peavey Will Do
We will repair or replace (at Peavey’s discretion) products covered by Warranty at no charge for labor or materials. If the product or component must be shipped to Peavey for
Warranty service, the consumer must pay initial shipping charges. If the repairs are covered by Warranty, Peavey will pay the return shipping charges.
How To Get Warranty Service
(1) Take the defective item and your sales receipt or other proof of date of purchase to your Authorized Peavey Dealer or Authorized Peavey Service Center.
OR
(2) Ship the defective item, prepaid, to Peavey Electronics Corporation, International Service Center, 412 Highway 11 & 80 East, Meridian, MS 39301. Include a detailed description
of the problem, together with a copy of your sales receipt or other proof of date of purchase as evidence of Warranty coverage. Also provide a complete return address.
Limitation of Implied Warranties
ANY IMPLIED WARRANTIES, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO THE LENGTH OF
THIS WARRANTY.
Some states do not allow limitations on how long an implied Warranty lasts, so the above limitation may not apply to you.
Exclusions of Damages
PEAVEY’S LIABILITY FOR ANY DEFECTIVE PRODUCT IS LIMITED TO THE REPAIR OR REPLACEMENT OF THE PRODUCT, AT PEAVEY’S OPTION. IF WE ELECT TO REPLACE THE
PRODUCT, THE REPLACEMENT MAY BE A RECONDITIONED UNIT. PEAVEY SHALL NOT BE LIABLE FOR DAMAGES BASED ON INCONVENIENCE, LOSS OF USE, LOST PROFITS,
LOST SAVINGS, DAMAGE TO ANY OTHER EQUIPMENT OR OTHER ITEMS AT THE SITE OF USE, OR ANY OTHER DAMAGES WHETHER INCIDENTAL, CONSEQUENTIAL OR
OTHERWISE, EVEN IF PEAVEY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you.
This Warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
If you have any questions about this Warranty or services received or if you need assistance in locating an Authorized Service Center, please contact the Peavey International
Service Center at (601) 483-5365.
Features and specifications are subject to change without notice.
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
Page 7
U.S. CUSTOMER WARRANTY REGISTRATION
Optional Product Extended Warranty Registration
Give us some information and put your extended warranty into effect!
9. How would you describe your level of musicianship/technical expertise?
1.
First Name Initial Last Name
Street Address
City State/Province Postal Code
( )
Telephone Number E-mail Address
( ) - Fax Number Date of birth
2.
Model Serial #
Date of Purchase Price Paid
3.
Name of store where purchased
City State
4. Top two (2) reasons why you purchased from this store/dealer:
8. Which other brands/models did you consider?
❒ Past favorable experience
❒ Best price
❒ Advertised special
❒ Convenient location
❒ Received as a gift
❒ Other
❒ Availability of product
❒ Friend/Relative’s recommendation
❒ Store credit card
❒ Knowledgeable staff
❒ Availability of lessons
❒ Technical instruction
6. What two (2) factors most influenced your purchase of this product?
❒ Peavey brand name
❒ Craftsmanship
❒ Features for price
❒ Bundled accessories
❒ Sound quality
❒ Product appearance
❒ Durability
❒ Prior experience with Peavey
❒ Packaging
❒ Other
❒ Beginner - Never played or taken less than one (1) year of lessons
❒ Intermediate - One (1) to five (5) years of lessons or playing
❒ Advanced - More than five (5) years of lessons or playing; play professionally
10. Education: (select best answer)
❒ High school
❒ Some college
❒ Completed college
❒ Graduate school
Gender ❒ M ❒ F
11. Which best describe your family income? (select best answer)
12. Which of the following is your primary source of information on musical
products: (select best answer)
Please take a few minutes to fill out this information/survey sheet to help us get to know and serve you better.
To save time, submit your warranty registration online at www.peavey.com/support/warrantyregistration
❒ Under $15,000
❒ $15,000 - $24,999
❒ $25,000 - $34,999
❒ $35,000 - $49,999
❒ $50,000 - $74,999
❒ Television
❒ Radio
❒ Internet
❒ Newspaper
❒ Magazines
❒ Mail order catalogs
❒ Direct mail
❒ Literature from manufacturer
❒ Other
❒ $75,000 - $99,999
❒ $100,000 - $149,999
❒ Over - $150,000
13. What is your main motivation for buying new equipment?
❒ Replacing old product
❒ Want new and leading edge
equipment
❒ Fullfill a specific need
❒ Supplement existing products
❒ Value
❒ Impulse
❒ Need for improved performance
❒ New technology
❒ Availability of product
❒ Other
7. How did you learn about this Peavey product? (select best answer)
❒ Magazine review
❒ Newspaper review
❒ Radio advertisement
❒ Advertised special
❒ Friend/Relative’s recommendation
❒ Salesperson’s recommendation
❒ Teacher’s recommendation
❒ Catalog or flyer
❒ Saw in store
❒ Use by professional
❒ Other
15. In your opinion, what could Peavey do to improve its products and/or service? Please use the space below to tell us your answer.
Thank you for taking the time to fill out our survey! Don’t forget to fold and tape
(with Peavey address facing out), affix postage stamp and drop in the mail!
5. Where do you most often shop for music and sound products?
❒ Independent retailer
❒ Mass market retailer
❒ Mail order magazines
❒ Newspaper ads
❒ Internet/Web sites
❒ Other
Revised 1/11
14. Please list your three most frequently visited Web sites.
1. http://__________________________________________
2. http://__________________________________________
3. http://__________________________________________
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
Page 8
Peavey Electronics
Corporation
Attn: Warranty Department
P.O. Box 5108
Meridian, Ms 39302-5108
FROM:
Place
Postage
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