Peavey 4G Frequency Response, Directivity, Power Handling, Three + Two Year Limited Warranty

light bulb. If the bulb in your Sound Guard™ should ever burn out, a replacement may be obtained from an Authorized Peavey Service Center. However, if a Peavey replacement bulb is not readily available, an automotive type 1156 bulb may be substituted for temporary use until a Peavey bulb can be obtained.

FREQUENCY RESPONSE

This measurement is useful in determining how accurately a given unit reproduces an input signal. The frequency response of the SP™ 4G is measured at a distance of 1 meter using a 2.0 volt swept-sine input signal. As shown in Figure 1, the selected drivers in the SP™ 4G combine to give a smooth frequency response from 39 Hz to 17.5 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™ 4G 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. Utilizing 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 39 Hz to

17.5kHz. The nominal output level shall be 100 dB when measured at a distance of one meter with an input of one watt. The nominal impedance shall be 4 ohms. The maximum continuous power handling shall be 600 watts, maximum program power of 1,200 watts and a peak power input of at least 2,400 watts, with a minimum amplifier headroom of 3 dB. The nominal radiation geometry shall be 87 degrees in the horizontal plane and 60 degrees in the vertical plane. The outside dimensions shall be

49.25inches high by 21.5 inches wide by 22.75 inches deep. The weight shall be 135 pounds. The loudspeaker system shall be a Peavey model SP™ 4G.

THREE + 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

©1998

	Printed in U.S.A. 9/98
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