•16-Gauge, powder coated metal grille
•Externally switchable, full-range/ bi-amp operation
•80° x 40° constant-directivity horn
DESCRIPTION
The DTH® 4210f was designed as a true minimum-profile enclosure. It measures only 18-3/4" at its widest point up front, 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® 4210f is a two-way, mid- to high-frequency system utilizing two SP10825 Scorpion® Plus mid-bass drivers and a 44XT™ compression driver coupled to a CH®-7 horn, which is a constant-directivity, 80o x 40o horn. The mid-bass section of the DTH® 4210f is horn loaded to improve output and directivity. It is further augmented by a critically optimized rear volume. This air cavity’s primary function is reactance annulling, which improves and extends the low-frequency response. Its secondary function is to optimize transient response and improve power handling.
As an additional improvement to the sonic quality of the mid-bass section, one of the 10" drivers has been mounted backwards (its electrical polarity has also been reversed so that its acoustical polarity is identical to the other 10" driver). This anti-axial arrangement of the drivers eliminates virtually all even-order harmonic distortion. An internal, passive cross- over is utilized to enable the system to run full-range from the factory. By flipping a switch on the input plate, the enclosure can quickly and easily be converted to bi-amp mode. The switch can be “locked” into either mode position by tightening down two screws to prevent tampering and/or accidental switching.
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).
Tough black polyurethane covers the DTH® 4210f. This is a low-wear, high- abrasion resistant material, 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® 4210f 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® 4210f is measured at 1 meter using a 2.0 volt swept-sine input. As shown in Figure 1, the selected drivers in the DTH® 4210f combine to give a smooth frequency response between 115 Hz and 16 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.
MOUNTING
Four flying points, ATM Fly-
Ware™ Nutplate, two aiming points. See Mounting Note on page 16.
ARCHITECTURAL
AND ENGINEERING
SPECIFICATIONS
The loudspeaker system shall have an operating bandwidth of 115 Hz to 16 kHz. The output level shall be
101 dB when measured at a distance of one meter with an input of one watt. The nominal impedance shall be
4 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 65° in the horizontal plane and 49° in the vertical plane. The outside dimensions shall be 46-3/8 inches high by 18 3/4" inches wide — front
(9 inches wide — rear) by 29-1/4 inches deep. The weight shall be
158 lbs. The loud-speaker system shall be a Peavey model DTH® 4210f.
2 + 3 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.
