Peavey Quadra 10 specifications Frequency response, Directivity

Input connection to the system is made via screw terminal strip (one pair) for full-range inputs.

The internal passive crossover features Sound Guard™ II 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 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 high current inductors and input connectors. The optimal integration of the crossover with the selected drivers results in a smooth frequency response from 74 Hz to 18 kHz.

Despite its compact dimensions, this enclosure can put out some very serious sound levels, and take 500 Watts program of clean amplifier power, resulting in an outstanding amount of clean coverage with amazing clarity.

Frequency response

This measurement is useful in determining how accurately a given unit reproduces an input signal. The frequency response of the Quadra 10 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 10 combine to give a smooth frequency response from 74 Hz to 18 kHz.

Directivity

Beamwidth is derived from the -6 dB points from the polar plots (see figure 3) which are measured in a whole space anechoic environment. Q and Directivity Index is plotted for the on-axis measurement position. 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 Quadra 10 exhibit a desirable beamwidth and directivity (figure 3 and 4) suitable for sound reinforcement applications.

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.

Harmonic Distortion : 10% Rated Power

	130
	120
	110
Pa)	100
(re 20	90
SPL	80
dB
	70
	60
	50	50	100	200	500	1k	2k	5k	10k	20k
	20

Frequency (Hz)

2nd Harmonic 3rd Harmonic

Harmonic Distortion : 1% Rated Power

	130
	120
	110
Pa)	100
(re 20	90
SPL	80
dB
	70
	60
	50	50	100	200	500	1k	2k	5k	10k	20k
	20

Frequency (Hz)

2nd Harmonic 3rd Harmonic

3