User manual PEAVEY QUADRA 12 DATASHEET

[. . . ] (2nd order) high pass and low pass, high pass section with CD horn EQ. 110 dB SPL (re 20 Pa) 100 90 80 70 60 20 Amplitude Response (1W 1m On-Axis) Recommended active crossover frequency region and slope: Low Frequency - High Frequency: 1, 800 Hz at 12 dB/octave Time offset: Low Frequency: 0. 00 ms High Frequency: Horn Spatially Aligned 50 100 200 Impedance (Z): Full Range: Nominal: 8. 0 Minimum: 5. 8 Low Frequency: Nominal: 8. 0 Minimum: 6. 5 High Frequency: Nominal: 8. 0 Minimum: 5. 4 Figure 1 500 1k Frequency (Hz) 2k 5k 10k 20k Impedance 100 50 30 20 Z ( ) 10 5 3 2 1 20 50 100 200 500 1k Frequency (Hz) 2k 5k 10k 20k Input connections: Screw terminal strip (one pair) paralleled with 2x Neutrik® NL4 Speakon® for fullrange inputs. 1x Neutrik NL4S switching Speakon for bi-amp inputs. Enclosure materials and finish: High-impact polypropylene finished in textured molded surface Figure 2 Beamwidth 360 300 Beamwidth (Degrees) 180 140 100 80 60 40 30 20 Horizontal Vertical 50 100 200 500 1k Frequency (Hz) 2k 5k 10k 20k Mounting provisions: (12) 1/4"-20 threaded mounting points, four each top, bottom, and rear Stand mounting via molded-in mount of the standard 1-3/8" diameter and four rubber feet for floor use Dimensions (H x W x D): Front: 23. 65 in. [. . . ] The internal passive crossover features Sound GuardTM III tweeter protection circuit, an advanced topology crossover with high performance components, to provide high power handling and reliability. Peavey's proprietary high-frequency driver protection circuitry, Sound Guard, provides long and medium-term driver overload protection when the system is used full-range or when it is bi-amped, without impairing musical transients or dynamics. The crossover provides driver roll-off and protection, as well as driver EQ for the woofer and horn, the sum total is a crystal clear and very smooth response. High-quality, reliable crossover components include polypropylene capacitors, and extremely high current inductors and input connectors. The optimal integration of the crossover with the selected drivers results in a smooth frequency response from 76 Hz to 18 kHz. Despite its compact dimensions, this enclosure can put out some very serious sound levels, and take 1000 Watts program of clean amplifier power, resulting in an outstanding amount of clean coverage with amazing clarity. Harmonic Distortion : 10% Rated Power 130 120 110 dB SPL (re 20 Pa) 100 90 80 70 60 50 20 50 100 200 500 1k 2k 5k 10k 20k Frequency (Hz) 2nd Harmonic 3rd Harmonic Harmonic Distortion : 1% Rated Power 130 120 110 dB SPL (re 20 Pa) 100 90 80 70 60 50 20 50 100 200 500 1k 2k 5k 10k 20k Frequency (Hz) 2nd Harmonic 3rd Harmonic 3 Frequency Response This measurement is useful in determining how accurately a given unit reproduces an input signal. The frequency response of the QuadraTM12 is measured at a distance of 1-meter using a 1 Watt (into the nominal impedance) swept-sine input signal. As shown in figure 1, the selected drivers in the Quadra 12 combine to give a smooth frequency response from 76 Hz to 18 kHz. Power Handling There are many different approaches to power handling ratings. Peavey rates this loudspeaker system's power handling using a full-range form of the AES Standard 2-1984. Using audio band 20 Hz to 20 kHz pink noise with peaks of 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. This rating is contingent upon having a minimum of 3 dB of amplifier headroom available. Architectural and Engineering Specifications The loudspeaker system shall have an operating bandwidth of 76 Hz to 18 kHz. The nominal output level shall be 99. 0 dB when measured at a distance of one meter with an input of one Watt. [. . . ] As an example, a distortion curve that is down 40 dB from the fundamental is equivalent to 1% distortion. 3 + 2 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. [. . . ]