Peavey SP 2G User's Manual
Contents
1. input signal As shown in Figure 1 the selected drivers inthe SP 2G combine to give a smooth frequency response from 48 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 Features and specifications subject to change without notice 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 2G exhibit a desirable beamwidth and directivity Figures 3 amp 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 i2. 20k Figure 1 Impedance 100 7 men 50 30 z 20 10 20 50 100 200 500 1k 2k 5 10k Frequency Hz 20k Beamwidth 40 A Horizontal 30 7 Vertical eee Ee 20 50 100 Figure 3 200 500 Ik 2k Sk 10k 20k Frequency Hz 100 20 Q amp Directivity Index 10 10 1 heeled l o 200 500 1k 2k Sk 10k 20k Frequency Hz Figure 4 age a HORIZONTAL POLAR PATTERNS fave 1 3 octave averaged plotted on ISO 1 octave ce nters from 250 Hz to 8kHz the 22XT The Sound Guard circuitis a dynamic circuitthat will attenuate the signal more the larger the signal is very similar to a compressor This is accomplished through the use of a specially selected dynamically resistive 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 obiained FREQUENCY RESPONSE This measurementis usefulin determining how accurately a given unit reproduces an input signal The frequency response of the SP 2G is measured at a distance of 1 meter using a 2 8 volt swept sine
3. Active Crossover Frequency and Siope for Bi amping 1 2 kHz at 18 dB octave Time Offset 0 70 mS delay Lows Impedance Z Full Range Nominal 8 Q Full Range Minimum 5 8 Q Lows Nominal 8 Q Highs Nominal 8 Q Input Connections Two paralleled 1 4 phone jacks for full range input One 1 4 phone jack for bi amp low frequency input One 1 4 phone jack for bi amp high frequency input FELVLY Enclosure Materials amp Finish 3 4 plywood enclosure covered with black carpet and protective polymer corners Expanded metal grille to protect the low frequency driver Mounting Provisions One SA 1 stand mount on bottom of enclosure Dimensions H x W x D 33 50 x 21 50 x 22 75 85 1 cm x 54 6 cm x 57 8 cm Net Weight 83 Ibs 37 7 kg FEATURES 1505 8 KADT Black Widow woofer 22XT compression driver Sound Guard high frequency protection circuit Trapezoidal enclosure design SA 1 stand mount DESCRIPTION The redesign of the ever popular SP 2 has resulted in the SP 2G loudspeaker system It is a two way speaker system comprised of a 15 Black Widow woofer with a Keviar impregnated cone and a 22XT compression driver coupled to a CH 941 constant directivity horn This unit can be driven in full range or bi amp mode simply by plugging into the desired jack on the inputplate The SP 2G has a trapezoidal shaped box rather than a rectangular shaped box that allows arra
4. oe PEAVEY ELECTRONIC SP 2G Sound Reinforcement Enclosure with Sound Guard HF Protection System SPECIFICATIONS Frequency Response 1 Meter On Axis Swept Sine in Anechoic Environment 65 Hz to 17 5 kHz Low Frequency Cut Oif 3 dB point 65 Hz Usable Low Frequency Limit 10 dB point 48 Hz Power Handling Full Range 300 W continuous 49 0 V RMS 600 W program 1 200 W peak Bi amp Low 350 W continuous 52 9 V RMS 700 W program 1 400 W peak Bi amp High 40 W continuous 17 9 V RMS 80 W program 160 W peak Sound Pressure Level 1 Watt 1 Meter in Anechoic Environment Full Range 100 dB 2 8 V Bi amp Low 100 dB 2 8 V Bi amp High 106 dB 2 8 V Maximum Sound Pressure Level 1 meter Full Range 124 dB continuous 130 dB peak Bi amp Low 125 dB continuous 131 dB peak Bi amp High 122 dB continuous 128 dB peak Radiation Angle Measured at 6 dB Point of Polar Response 500 Hz to 1 6 kHz Horizontal 94 11 Vertical 86 19 1 6 kHz to 5 kHz Horizontal 72 17 Vertical 49 10 5 kHz to 16 kHz Horizontal 88 3 Vertical 34 3 Directivity Factor Q Mean 8 8 2 6 3 9 Directivity Index Di Mean 9 4 dB 4 2 dB 5 9 dB Transducer Complement One 1505 8 KADT Black Widow woofer One 22XT compression driver loaded by a CH 941 horn Box Tuning Frequency 55 Hz Crossover Frequency internal passive 1 8 kHz Minimum Recommended
5. s contingent on having a minimum of 3 dB of amplifier FEMWVLY headroom available so as io ensure that clipping does not occur ARCHITECTURAL amp ENGINEERING SPECIFICATIONS The loudspeaker system shall have an operating bandwidth of 48 Hz to 17 5 kHz 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 8 ohms The maximum continuous power handling shall be 300 watis maximum program power of 600 watts and a peak power input of at least 1 200 waits with a minimum amplifier headroom of 3 dB The nominal radiation geometry shall be 84 degrees in the horizontal plane and 59 degrees in the vertical plane The outside dimensions shall be 33 50 inches high by 21 50 inches wide by 22 75 inches deep The weight shall be 83 pounds The loudspeaker system shall be a Peavey model SP 2G ONE 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 A Peavey Electronics Corporation 711 A Street Meridian MS 39301 U S A 601 483 5365 Fax 486 1278 1998 HALIM 80301 Printed in U S A 5 98
6. ys tobe constructed much more easily This shape also greatly reduces the build up of standing waves on the inside of the enclosure This ensures a minimum of mid bass amp mid range coloration of the reproduced sound due to the cabinet The SP 2G is constructed of 3 4 plywood and is covered with Peavey s durable black carpet Polymer corners are also a partofthe unit to provide added protection to the enclosure A powder coated expanded metal grille covers the lower part of the front of the enclosure to protect the low frequency driver from unforeseen accidents Sound Guard Peavey s proprietary circuit for high frequency driver protection has been included as an integral part of the crossover for the SP 2G The input signalis routed through the Sound Guard circuit in both full range and bi amp modes of operation When the high frequency drive level of the SP 2G exceeds a predetermined threshold the Sound Guard circuit in engaged This subtly decreases the signal level going to the 22XT so that it will not be damaged due tolong term overpowering Short duration transients will notbe attenuated by Sound Guard and have the possibility to damage Amplitude Response 1W 1m On Axis rT j i i Lal 110 Ff Ht Hoi 4 dB SPL re 20 jsPa 2 Pe ei i i 70 k 20 50 100 200 500 1k 2k 5k 10k Frequency Hz
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