Peavey Impulse 1582 User Manual
S P E C I F I C A T I O N S
IMPULSE
Full Range,
Two-Way
Enclosure
SPECIFICATIONS
Frequency Response, 1 Meter, OnAxis, Swept Sine in Anechoic
Environment:
55 Hz to 19 kHz
Low-Frequency Cut-Off (-3 dB point):
55 Hz
Usable Low-Frequency Limit (-10 dB
point):
47 Hz
Power Handling:
Full Range:
300 W continuous (48.9 V RMS)
600 W program
1,200 W peak
Bi-amp Low:
350 W continuous (34.6 V RMS)
700 W program
1,400 W peak
™
1582
part number 00332250 eyebolts optional
Bi-amp High:
80 W continuous (17.9 V RMS)
160 W program
320 W peak
Sensitivity, 1 Watt 1 Meter in
Anechoic Environment:
Full Range:
99 dB SPL
Bi-amp Low:
99 dB SPL
Bi-amp High:
111 dB SPL
Maximum Sound Pressure Level
(1 meter):
Full Range:
122 dB SPL (continuous)
128 dB SPL (peak)
Bi-amp Low:
122 dB SPL (continuous)
128 dB SPL (peak)
Bi-amp High:
134 dB SPL (continuous)
140 dB SPL (peak)
Radiation Angle Measured at -6 dB
Point of Polar Response:
500 Hz to 1.6 kHz:
Horizontal: 98° ±18°
Vertical: 90° ±10°
1.6 kHz to 5 kHz:
Horizontal: 76° ±9°
Vertical: 62° ±16°
5 kHz to 16 kHz:
Horizontal: 63° ±17°
Vertical: 39° ±5°
Directivity Factor, Q (Mean):
8.5 dB
Directivity Index, Di (Mean):
9.3 dB
Transducer Complement:
One 1505-8DT Black Widow® 15" inch
woofer
One 44T™ compression driver coupled
with a CH®-7 constant-directivity horn
Box Tuning Frequency:
54 Hz
Harmonic Distortion:
1/100 rated power
2nd harmonic:
100 Hz: 0.80%
1 kHz: 0.16%
3rd harmonic:
100 Hz: 0.28%
1 kHz: 0.19%
1/10 rated power
2nd harmonic:
100 Hz: 2.50%
1 kHz: 0.35%
3rd harmonic:
100 Hz: 3.10%
1 kHz: 0.40%
Recommended Active Crossover
Frequency and Slope:
800 Hz minimum at 12 dB/octave
Time Offset:
0.41 mS (delay Lows)
Impedance (Z):
Full Range Nominal: 8Ω
Full Range Minimum: 5.9Ω
Lows Nominal: 8Ω
Highs Minimum: 8Ω
Input Connections:
Full Range: 2-position terminal barrier
strip
Bi-amp: 4-position terminal barrier strip
(barrier strips accept up to 10 ga. wire)
Enclosure Materials & Finish:
Painted finish (illustrated):
3/4", 7-ply Poplar faced, high-density
plywood with grey polyurethane
finish
Natural finish:
18 mm, 13-ply Baltic Birch, void-free
plywood (ready for finish of user’s
choice)
TM
®
®
Dimensions (H x W x D):
29.50" H x 21.50" W x 17.50" D
(rear width 21.50")
74.9 cm x 54.6 cm x 44.5 cm
(rear width 54.6 cm)
Net Weight:
108 lbs. (49.1 kg)
FEATURES
• Bi-amp capability
• High power handling
• Metal guard grille
• 10 gauge steel internal flying points
• 44T™ titanium dome compression
driver
• Grille color options
• 800 Hz crossover
DESCRIPTION
The new Impulse
bi-ampable two-way enclosure designed
specifically for permanent installation. The
cabinet is constructed of 3/4" Poplar-faced,
high-density plywood, or 18 mm, 13-ply all
Birch void-free plywood. The internal flying
points are reinforced with 10 gauge steel
bracing. The decorative and internal
protective grilles are permanently attached to
the enclosure.
The two-way system is comprised of a
Black Widow 15" woofer, and a 44T
compression driver loaded into a CH-7
constant-directivity horn. The frequency
spectrum can either be divided internally
through the enclosure’s passive crossover
operating at about 800 Hertz, or through an
external active or passive crossover. In either
case, the input lead connection is made
secure through the use of screw terminal
barrier strips for bi-amp operation.
™
1582 is a full range or
FREQUENCY RESPONSE
This measurement is useful in determining
how accurately a given enclosure reproduces
an input signal. The frequency response of
the Impulse 1582 is measured at 1 meter
using a 2.83 volt swept sine input. As shown
in Figure 1, the selected drivers in the
Impulse 1582 combine to give a smooth
frequency response from 55 Hz to 19 kHz.
DIRECTIVITY
Beamwidth and directivity factors are
derived from the -6 dB points from the polar
plots, which are measured in a whole-space
anechoic environment. These are specifications that provide a reference to the coverage
characterisitics of the enclosure. These
parameters provide insight for proper
enclosure placement and installation in the
chosen environment. The Impulse 1582
exhibits a desirable beamwidth and directivity
factor suitable for all high-level sound
reinforcement applications.
POWER HANDLING
There are many different approaches to
power handling ratings. Peavey rates this
speaker system’s power handling using a
modified form of the AES Standard 2-1984.
Utilizing audio band (20 Hz to 20 kHz) pink
noise with peaks over four times the RMS
level, this strenuous test signal assures the
Frequency
100 dB
90 dB
80 dB
50 Hz 100 Hz 200 Hz 500 Hz 1 kHz 2kHz 5 kHz 10 kHz 20 kHz
Impedance
100 ohm
3.16 ohm
10 ohm
3.16 ohm
50 Hz 100 Hz 200 Hz 500 Hz 1 kHz 2kHz 5 kHz 10 kHz 20 kHz
320
160
80
Beamwidth vs. Frequency
40
20
10
Directivity
Di
Horizontal Vertical
125 200 315 500 800 1.25 2 3.15 5 8 12.5
100 160 250 400 630 1K 1.6K 2.5K 4K 6.3K 10K 16K
•
•
•
•
•
•
•
•
•
••
•
•
•
5
0
125 200 315 500 800 1.25 2 3.15 5 8 12.5
100 160 250 400 630 1K 1.6K 2.5K 4K 6.3K 10K 16K
•
•
•
•
Fig. 1
Fig. 2
Fig. 4
•
•
Fig. 3
100
10
1
Q
2
user that every portion of this system can
withstand today’s high-technology music.
The test signal contains large amounts of
very low-frequency energy, effectively
simulating the frequency content of live
music situations. The full measure of high
frequencies in the test signal allow for
exposure of the speaker system to synthesize tones that may extend beyond audibility.
This rating is contingent on having a
minimum 3 dB of amplifier headroom
available.
HARMONIC DISTORTION
Second and third harmonic distortion vs.
frequency are plotted in Figures 5 and 6 for
two power levels, one-tenth rated input
power and one-hundredth rated input power.
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:
CAUTION: Before attempting to suspend
this speaker, consult a certified structural
engineer. Speaker can fall from improper
suspension, resulting in serious injury and
property damage. Other enclosures may be
suspended below one Impulse 1582.
However, the combined weight of additional
enclosures and all cables, clamps, and other
hardware must not exceed 117 lbs. The
Impulse 1582 weighs 108 pounds and the
maximum combined weight suspended from
the uppermost mounting bracket assemblies
must not exceed 225 pounds. Maximum
enclosure angle is 45°. Use only 1/2" forged
shoulder machinery eyebolt, mil spec.
MS51937-5, Peavey part number 00332250.
All associated rigging is the responsibility of
others.
ARCHITECTURAL
& ENGINEERING
SPECIFICATIONS
The loudspeaker system shall have an
operating bandwidth of 55 Hz to 19 kHz. The
nominal output level shall be 99 dB (full
range), 99 dB (bi-amp) when measured at a
distance of one meter with an input of one
watt. The nominal impedance shall be 8
ohms (full range), 8 ohms (bi-amp). The
maximum continuous power handling shall
be 300 watts (full range), 300 watts (bi-amp),
and maximum program power of 600 watts
(full range), 700 watts (bi-amp), with a
minimum amplifier headroom of 3 dB. The
nominal radiation geometry shall be 80° in
the horizontal plane and 40° in the vertical
plane. The outside dimensions shall be
29.50 inches wide by 21.50 inches high by
17.50 inches deep, with a rear width of 21.50
inches. The weight shall be 108 lbs. The
loudspeaker system shall be a Peavey
model Impulse™ 1582.
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 2898, Meridian,
Mississippi 30302-2898.
6.0 dB
0.0 dB
-6.0 dB
-12.0 dB
-18.0 dB
-24.0 dB
-30.0 dB
-36.0 dB
-42.0 dB
-48.0 dB
-54.0 dB
20 50 100 200 500 1K 2K 5K 10K 20K
2nd & 3rd Harm. (1/10 Power)
Fig. 5
= 2nd Harm. = 3rd Harm.
6.0 dB
0.0 dB
-6.0 dB
-12.0 dB
-18.0 dB
-24.0 dB
-30.0 dB
-36.0 dB
-42.0 dB
-48.0 dB
-54.0 dB
20 50 100 200 500 1K 2K 5K 10K 20K
2nd & 3rd Harm. (1/100 Power)
Fig. 6
= 2nd Harm. = 3rd Harm.
LIMITED WARRANTY
Peavey Electronics Corporation warrants to the original purchaser of this new
Architectural Acoustics product that it is free from defects in material and workmanship.
If within one (1) year from date of purchase a properly installed product proves to be
defective and Peavey is notified, Peavey will repair or replace it at no charge. (Note:
Batteries and patch cords not covered.) “Original purchaser” means the customer for
whom the product is originally installed.
Damage resulting from improper installation, interconnection of a unit or system of
another manufacturer, accident or unreasonable use, neglect or any other cause not
arising from defects in material and workmanship is not covered by this warranty. The
warranty is valid only as to products purchased and installed in the United States.
THIS LIMITED WARRANTY IS IN LIEU OF ANY AND ALL WARRANTIES, EXPRESSED
OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR USE. UNDER NO CIRCUMSTANCES WILL PEAVEY BE
LIABLE FOR ANY LOST PROFITS, LOST SAVINGS, INCIDENTAL DAMAGES OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PRODUCT,
EVEN IF PEAVEY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THIS
LIMITED WARRANTY IS THE ONLY EXPRESSED WARRANTY ON THIS PRODUCT, AND
NO OTHER STATEMENT, REPRESENTATION, WARRANTY, OR AGREEMENT BY ANY
PERSON SHALL BE VALID OR BINDING UPON PEAVEY.
Peavey’s liability to the original purchaser for damages for any cause whatsoever and
regardless of the form of action is limited to the actual damages up to the greater of Five
Hundred Dollars ($500) or an amount equal to the purchase price of the product that
caused the damage or that is the subject of or is directly related to the cause of action. This
limitation of liability will not apply to claims for personal injury or damage to real property
or tangible personal property allegedly caused by Peavey’s negligence. For information
on service under this warranty, call a Peavey customer service representative at
(601) 483-5376.
3
HORIZONTAL POLAR PATTERNS
6 dB per division
90.0
90.0
67.5
67.5
O
0.0
O
22.5
O
45.0
O
O
250 Hz
O
0.0
O
22.5
O
45.0
O
O
-22.5
-22.5
O
O
-45.0
O
-67.5
-90.0
67.5
O
90.0
22.5
O
45.0
O
O
300 Hz
O
O
-45.0
O
-67.5
-90.0
67.5
O
90.0
22.5
O
45.0
O
O
O
0.0
O
-22.5
O
O
-45.0
O
-67.5
-90.0
67.5
O
90.0
22.5
O
45.0
O
O
400 Hz
O
0.0
O
-22.5
O
O
-45.0
O
-67.5
-90.0
67.5
O
90.0
22.5
O
45.0
O
O
O
0.0
O
O
0.0
O
-22.5
-22.5
O
O
-45.0
O
-67.5
O
-90.0
O
O
-45.0
O
-67.5
O
-90.0
90.0
90.0
67.5
67.5
500 Hz 630 Hz 800 Hz
O
0.0
O
22.5
O
45.0
O
O
1 kHz
O
0.0
O
22.5
O
45.0
O
O
-22.5
-22.5
O
O
-45.0
O
-67.5
-90.0
67.5
O
90.0
22.5
O
45.0
O
O
1.25 kHz
O
O
-45.0
O
-67.5
-90.0
67.5
O
90.0
22.5
O
45.0
O
O
O
0.0
O
-22.5
O
O
-45.0
O
-67.5
-90.0
67.5
O
90.0
22.5
O
45.0
O
O
1.6 kHz
O
0.0
O
-22.5
O
O
-45.0
O
-67.5
-90.0
67.5
O
90.0
22.5
O
45.0
O
O
O
0.0
O
0.0
O
O
-22.5
O
-45.0
O
-67.5
O
-90.0
O
-22.5
O
O
-45.0
O
-67.5
O
-90.0
2 kHz 2.5 kHz
3.15 kHz
4
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