User manual PEAVEY DPM 3 SE

[. . . ] The DPM 3 SE is a direct radiator woofer designed specifically for the high end proaudio user. When used in conjunction with the QW-1 and QW-218 in a four-way application, the sound pressure levels can reach SPLs of 140 dB continuous. The power handling of this system in four-way applications approaches 6800 Watts program. [. . . ] The new Pro Rider 15" driver is a milestone in high power subwoofer design. Its incredible 2400 Watt program rating and extra-long cone excursion produce amazing new levels of clean, deep bass, making the DPM 3 SE a superior choice for the bottom end of any high powered sound system (primarily large, professional touring shows). The DPM 3 SE trapezoid enclosure is unusually compact for its power handling, SPL output, distortion performance and bass extension. This is made possible by special characteristics designed into the Pro Rider woofer. The DPM 3 SE is well braced, as internal pressures produced by the Pro Rider QWTM-215 Harmonic distortion Second and third harmonic distortions vs. Ten percent (10%) of rated input power and either one percent (1%) of rated input power or 1 Watt, whichever is greater. Distortion is the difference between the fundamental signal (frequency response) and the desired harmonic. For example, a distortion curve down 40 dB from the fundamental is equivalent to 1% distortion. The DPM 3 SE is constructed of premium . 720" plywood and covered with a tough, durable black Hammer HeadTM polyurea coating, making this enclosure rugged and very road-worthy. A 16-gauge powdercoated, perforated metal grille covers the front of the system to protect the speakers from external damage. Inputs include two four-pin Neutrik jacks in parallel; an eight-pin Neutrik; and a four-pin Neutrik thru jack for bi-amping flexibility while maintaining superior signal integrity. A standard four-pin Neutrik jack in parallel allows for simple daisy-chaining to another cabinet when biamping. Despite its compact dimensions, this system can output extremely high sound levels and receive 2400 Watts program of clean amplifier power, resulting in large area coverage with excellent punch and high reliability. Frequency response This measurement is useful in determining how accurately a given unit reproduces an input signal. The frequency response of the DPM 3 SE is measured at a distance of 1 meter using a 1 Watt swept-sine input signal (into the nominal impedance). As shown in Figure 1, the selected drivers in the DPM 3 SE combine to give a smooth frequency response from 47 Hz to 1. 5 kHz. [. . . ] The frequency response of the DPM 3 SE is measured at a distance of 1 meter using a 1 Watt swept-sine input signal (into the nominal impedance). As shown in Figure 1, the selected drivers in the DPM 3 SE combine to give a smooth frequency response from 47 Hz to 1. 5 kHz. Power handling Peavey rates this loudspeaker system's power handling using a modified form of the AES Standard 2-1984. [. . . ]