Check for Secure Hardware
After the first few weeks of use and periodically thereafter, check the hardware of the SP®4P for tightness, includ-
ing the rear panel screws and the screws that hold the baffle and rear cabinet together.
The unit is subject to a great deal of vibration, and this could cause the hardware to loosen with use.
Architectural and Engineering Specifications
The powered loudspeaker system shall have a frequency response from 57 Hz to 17 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 two Peavey® 15" Black Widow® woofers in a vented enclosure, and
a RX22CT compression driver tweeter mounted on an asymmetrical Quadratic Throat CD horn . The nominal
radiation pattern shall be 100° in the horizontal plane, and 50° in the vertical plane, with the vertical main polar
lobe angled down 10 degrees with respect to straight ahead, the vertical coverage angles being +15. –35 deg.
The powered, bi-amplified loudspeaker system shall have two mixed input channels consisting of a medium
impedance input connector consisting of one combo female XLR and 1/4" TRS phone jack on the rear panel.
Channel two shall have a 3.5 mm input jack as well.
There shall be a Direct Thru (output) connector consisting of a male XLR jack.
The output of this jack shall be switchable between just Ch. 1 input and a Mix of Ch 1 and Ch 2.
The system power amplifiers shall have an unfiltered frequency response of 20 Hz to 20 kHz which deviates no
more than +1, -3 dB up to rated power, hum and noise better than 90 dB below rated power, and THD and IMD
typically of less than 0.1%.
The woofer amplifier shall be capable of 500W continuous into a 4 ohm nominal load, and the tweeter amplifier
shall be capable of 250 W continuous output into a 8 ohm load, and both shall incorporate independent signal
compression.
The input signal shall be electronically divided into high frequencies and low frequencies by a Linkwitz-Riley
fourth order slope line-level crossover at 1.8 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 15 mm plywood. Four-way inset handles shall be incorporated on each
side. A full-length powder-coated metal grille shall be provided for horn and woofer protection. The cabinet
shall incorporate four tall sturdy rubber feet for floor standing use.
The outside dimensions shall be: 43.50" (110.5 cm) tall x 16.75" (42.6 cm) wide x 16.85" (42.8 cm) deep, and the
weight shall be 93 lbs. Power requirements shall be: 200 Watts nominal, 120 VAC, 50/60 Hz Domestic and 220-
240 VAC, 50/60 Hz (Export). The loudspeaker system shall be called a Peavey® SP®4P.