FEATURES
•Externally switchable, full-range/ bi-amp operation
•1505-8 DT Black Widow® woofer
•44XT™ compression driver
•High power-handling, polypropylene capacitors
•16-gauge powder coated metal grille
•“Lockable” mode select switch
•80° x 40° constant-directivity horn
DESCRIPTION
The DTH® 4115 was designed as a true minimum profile enclosure. It measures only 18-3/4" at its widest point up front while tapering to a mere 9" at the back. Because of the trapezoidal geometry of these enclosures, building arrays is much easier. This shape also greatly reduces standing wave buildup within the enclosure.
The DTH® 4115 is a two-way system consisting of a 1505-8 DT Black Widow® woofer and a 44XT™ compression driver coupled to a CH®-7 horn. This is a constant directivity 80° x 40° horn. An internal passive crossover is utilized to enable the system to run full-range, directly from the factory. By flipping a switch on the input plate, the enclosure can quickly and easily be converted to biamp mode. High power handling polypropylene capacitors are used throughout the crossover. This results in a cleaner sound, especially at high power levels as well as improved reliability.
Two Neutrik® four-conductor Speakon® connectors are provided for input to the speaker. One of these connectors can be utilized to parallel or “daisy chain” another enclosure, if desired. (If used in this manner, the amplifier must be rated for operation into the resulting load).
Black polyurethane coating covers the DTH® 4115. This is a low-wear, high-abrasion resistant coating, similar to those used in the automotive industry. A heavy-duty, 16-gauge metal grille and a polyester foam overlay dresses off the enclosure and provides superior protection for the drivers.
All this combines to give you a great looking and great sounding loudspeaker perfectly suited for any sound reinforcement application.
DIRECTIVITY
Beamwidth and directivity factors are derived from the -6 dB points from the polar points (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 enclosure. These parameters provide insight for proper enclosure placement and installation in the chosen environment. The blending of the components of the DTH® 4115 exhibits a desirable beamwidth and directivity factor (Figures 3 and 4), suitable for all high-level sound reinforcement applications.
FREQUENCY RESPONSE
This measurement is useful in determining how accurately a given enclosure reproduces at an input signal. The frequency response of the DTH® 4115 is measured at 1 meter using a
2.8-volt swept-sine input. As shown in Figure 1, the selected drivers in the DTH® 4115 combine to give a smooth frequency response between
55 Hz and 18 kHz.
POWER HANDLING
There are many different approaches to power handling ratings. Peavey rates this speaker system’s power handling using a modified form of the AES Standard 2-1984. Utilizing audio band
(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 3 dB of amplifier headroom available.
ARCHITECTURAL
AND ENGINEERING
SPECIFICATIONS
The loudspeaker system shall have an operating bandwidth of 55 Hz to
18 kHz. The output level shall be 98 dB when measured at a distance of one meter with an input of one watt. The nominal impedance shall be 8 ohms. The continuous power handling shall be 400 watts, with maximum program power of 800 watts and minimum amplifier headroom of 3 dB. The nominal radiation geometry shall be
80° in the horizontal plane and 75° in the vertical plane. The outside dimension shall be 32-3/8 inches high by 18-3/4 inches wide-front (9 inches wide-rear) by 29-1/8 inches deep. The weight shall be 103.6 lbs. The loud- speaker system shall be a Peavey model DTH® 4115.
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.