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SPECIFICATIONS Impulse
®
115
• Very compact design
• Built-in speaker stand-mount
• Black HammerHead
™
polyurethane
coating
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The Impulse115 incorporates the new
high powered Low Rider
®
15" woofer and
a new compact cabinet design. The
Impulse 115 is a direct radiator
subwoofer designed specifically for high-
end pro audio users.
The new Low Rider 15" driver is a
milestone in high powered subwoofer
design. An incredible 1,600 Watt program
rating and extra-long cone excursion
provide amazingly clean, deep bass. This
makes the Impulse 115 a superior choice
for the bottom end of any high powered
sound system, specifically large
professional touring shows.
The Impulse 115 is unusually compact for
its power handling, SPL output,
distortion performance and bass
extension. This is made possible by the
specially designed Low Rider woofer.
This loudspeaker is well-braced and very
stiff, as internal pressures produced by
the Low Rider woofer can be very high.
The vent design integrated into the
enclosure includes a vertical brace to
further increase enclosure stiffness.
The Impulse 115 vents a large area and a
long path, allowing a large volume of air
to move with very low resistance. This is
important due to the huge air flow
volumes that the Low Rider woofer can
produce.
Its premium .720" plywood construction
and tough, durable, black HammerHead
polyurethane coating make this system
rugged and road-worthy. A 16-gauge
powder-coated, perforated metal grille
covers the front of the system to protect
the speakers from external damage.
IInnppuuttss
This system features two four-pin
Neutrik
®
jacks in parallel, an eight-pin
Neutrik and a four-pin Neutrik thru jack,
which provides bi-amping flexibility
while maintaining superior signal
integrity. The inclusion of a standard
four-pin Neutrik jack in parallel allows
for daisy-chaining to another cabinet
when bi-amping.
Despite its compact dimensions, this
system can put out extremely serious
sound levels, resulting in large area
coverage with excellent punch and high
reliability.
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This measurement is useful in
determining how accurately a given unit
reproduces an input signal. The
frequency response of the Impulse 115
is measured at a distance of 1 meter
using a 1 Watt swept-sine input signal
into the nominal impedance. As shown in
Figure 1, the Impulse 115 produces a
smooth frequency response.
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There are many different approaches to
power handling ratings. Peavey rates
this loudspeaker system’s power
handling using a modified form of the
AES Standard 2-1984. Using audio band
40 Hz to 400 Hz 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 3 dB amplifier headroom.
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Second and third harmonic distortions
vs. frequency are plotted in Figures 3
and 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. As shown
on the graph, distortion is the difference
between the fundamental signal
(frequency response) and the desired
harmonic. For example, a distortion
curve that is down 40 dB from the
fundamental is equivalent to 1%
distortion.
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SSppeecciiffiiccaattiioonnss
The loudspeaker system shall have an
operating bandwidth of 35 Hz to 1.5 kHz.
The nominal output level shall be 95 dB
when measured at a distance of 1 meter
with an input of 1 Watt. The nominal
impedance shall be 8 Ohms. The
maximum continuous power handling
shall be 800 Watts, with maximum
program power at 1600 Watts; a peak
power input of at least 3200 Watts; and
a minimum amplifier headroom of 3 dB.
The outside dimensions shall be 24.5"
high by 21.00" wide by 26.75" deep. The
weight shall be 74 lbs. The loudspeaker
system shall be a model Impulse 115.
33 ++ 22 YYEEAARR LLIIMMIITTEEDD WWAARRRRAANNTTYY
NNOOTTEE::
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.