Peavey IMPULSE 12 D Operating Manual page 31

ARCHITECTURAL AND ENGINEERING SPECIFICATIONS
The powered loudspeaker system shall have a frequency response from 60 Hz to 20 kHz. The peak SPL with
inaudible distortion shall reach 131 dB with music as a source, when measured at a distance of 1M and driven
to full output capacity. The system shall utilize a Peavey ® 12" Neodymium Dual Voice Coil Scorpion ® woofer and
a Peavey RD ™ 2.6 true ribbon driver tweeter. The nominal radiation pattern shall be 100˚ in the horizontal plane,
and 30˚ in the vertical plane.
The powered, bi-amplified loudspeaker system shall have two input channels capable of being mixed together
with independent level controls. On the rear panel, it shall have a group of medium impedance input connectors.
For one channel, these connectors will consist of a Euro-style jack connector and a combo female XLR and 1/4"
TRS phone jack. For the other channel, the connectors will consist of two RCA phono jacks and a combo female
XLR and 1/4" TRS phone jack.
The combo female XLR and 1/4" TRS phone jack of each channel will have a gain adjust pad that provides 30 dB
of gain adjust and provides for switching between line-level input signals and mic-level input signals.
The input section shall have a push button activated EQ system that provides for various combinations of
nominally flat frequency response, response filtered at the frequency extremes, response with dynamic boost of
just the high frequencies, and response with dynamic boost at the low and high frequencies (Fletcher-Munson
style compensation).
There shall be a group of line out connectors consisting of a male XLR jack, a 1/4" TRS phone jack, and a
Euro-style jack connector.
The system power amplifiers shall have an unfiltered frequency response of 10 Hz to 20 kHz which deviates no
more than +0, -1 dB up to rated power, a damping factor greater than 100 @ 1 kHz into 8 ohms, hum and noise
better than 90 dB below rated power, and THD and IMD of less than 0.1%.
The woofer amplifier shall be capable of 550 W continuous into a 4 ohm nominal load, and the tweeter amplifier
™
shall be capable of 75 W continuous output into a 8 ohm load. Both shall incorporate independent DDT
compression.
The input signal shall be electronically divided into high frequencies and low frequencies by a staggered
pole fourth order slope line-level crossover at 2 kHz. The low frequencies shall be processed to provide
bass boost, subsonic filtering and overall response shaping, and the high frequencies shall be equalized for
response-shaping.
The enclosure shall be constructed of injection-molded polypropylene with a UL flame rating, and reinforcing
ribs internally. A hand grip shall be incorporated on each side near the woofer and towards the front, as well as
on the right side of the cabinet.
A powder-coated metal grille shall be provided for woofer protection. The cabinet shall incorporate a pole mount
for speaker stand use, four tall sturdy rubber feet for floor standing use, and a group of four mounting point
inserts each on the top, bottom, and right side, for flying use.
The outside dimensions shall be: 25.00" (63.5 cm) tall x 15.88" (40.3 cm) wide x 15.25" (38.7 cm) deep, and the
weight shall be 39 lbs. Power requirements shall be: 700 Watts nominal, 100-120 VAC, 50/60 Hz Domestic and
220-240 VAC, 50/60 Hz (Export). The loudspeaker system shall be called a Peavey Impulse ® 12D.