Frequency Response, Directivity, Power Handling

When operating the SP™ 1G in bi-amp mode with an active cross- over, the CS® X1 input/crossover module for the CS® 800S is recommended. This crossover

is designed specifically for this type of loudspeaker. It may be obtained as an add-on feature to the

CS 800S at a modest cost. The proper configuration for this cross- over module when using it with the SP™ 1G is to have it set to SP™ 2 mode and reverse the polarity of the high-frequency driver. This will give the best possible sonic and direc- tional performance from the SP™ 1G without spending hundreds of dollars for a fully programmable digital crossover.

FREQUENCY RESPONSE

This measurement is useful in determining how accurately a given unit reproduces an input signal. The frequency response of the SP™ 1G is measured at a distance of 1 meter using a 2.8 volt swept-sine input signal. As shown in Figure 1, the selected drivers in the SP™ 1G combine to give a smooth frequency response from 50 Hz to 19.0 kHz.

DIRECTIVITY

Beamwidth and directivity factors are derived from the -6 dB points from the polar plots (see Figure 3), which are measured in a

whole space anechoic environment. These are specifications that provide a reference to the coverage characteristics of the unit. These parameters provide insight for proper placement and installation in the chosen environment. The blending of the components of

the SP 1G exhibit a desirable beamwidth and directivity (Figures 3 and 4) suitable for sound reinforcement applications.

POWER HANDLING

There are many different approaches to power handling ratings. Peavey Electronics rates this unit’s system power handling using a modified form of the AES Standard 2-1984. It utilizes audio band limited (20 Hz to 20 kHz) pink noise with peaks over 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. 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 synthesized tones that may extend beyond audibility. This rating is contingent on having a minimum of 3 dB of amplifier headroom

available so as to ensure that clipping does not occur.

ARCHITECTURAL AND ENGINEERING SPECIFICATIONS

The loudspeaker system shall have an operating bandwidth of 50 Hz to 19 kHz. The nominal output level shall be 99 dB when measured at a distance of one meter with an input of one watt. The nominal impedance shall be

8 ohms. The maximum continuous power handling shall be 450 watts, maximum program power of

900 watts and a peak power input of at least 1,800 watts, with a minimum amplifier headroom of 3 dB. The nominal radiation geometry shall be 77 degrees in the horizontal plane and 63 degrees in the vertical plane. The outside dimensions shall be 33.75 inches high by 19.0 inches wide by

20 inches deep. The weight shall be 95 pounds. The loudspeaker system shall be a Peavey model SP™ 1G.

THREE PLUS TWO 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 39302-2898.

Features and specifications subject to change without notice.

Peavey Electronics Corporation • 711 A Street • Meridian, MS 39301 • U.S.A.

(601) 483-5365 • Fax 486-1278 • www.peavey.com

80304481

Printed in U.S.A. 9/98