Electro Voice Home Theater System DH7 8 User Manual

DH7-8/DH7-16  
3-Inch High Frequency  
Transducer  
Key Features:  
Verysmoothfrequencyresponse  
Geometricallyoptimizedtitaniumdiaphragm  
75mmedgewoundaluminumvoicecoil  
Securescrewdownterminals  
Compactandrugged  
1.4" bolt-on exit diameter  
Available in 8 and 16 ohms  
General Description:  
Technical Specifications:  
The Electro-Voice DH7 high frequency compression driver  
is capable of high acoustic output over a wide frequency  
range. Precise engineering, along with careful selection of  
materials and advanced driver architecture, has resulted in  
a driver that is ideally suited for the most demanding  
presentation of high quality music and communications  
program.  
DH7-8  
DH7-16  
16 ohms  
14 ohms  
10 ohms  
Nominal Impedance:  
Minimum Impedance: 7 ohms @ 6 kHz  
DC Resistance: 4.5 ohms  
Freq. Response: 1000-20,000 Hz  
8 ohms  
Power Capacity1: 75 Watts, 150 Watts Cont. Prog.  
Recommended Crossover: 1000 Hz or Higher  
Nominal Efficiency: 25%  
Incorporating Electro-Voice’s exclusive Ring Mode  
Decoupling (RMD) through all design phases has produced  
drivers with unmatched accuracy while minimizing any  
acoustic resonances, or time domain ringing throughout the  
driver structure.  
Sound Pressure Level2: 113 dB, HP420 Horn  
(1 Watt @ 1 Meter) 111 dB, HP640 Horn  
109 dB, HP940 Horn  
Throat Diameter: 1.38" (35mm)  
Voice Coil Diameter: 3" (75 mm)  
Voice Coil Wire: Pure Aluminum Ribbon  
Years of dedicated research and experience in the field  
have yielded a new high performance solution for use in  
both two and three-way systems, as well as demanding  
stand alone horn applications  
Diaphragm Construction: 0.05 mm Pure Titanium Dome and  
Surround  
A unique, geometrically optimized 3" titanium diaphragm,  
consisting of a one piece dome and suspension structure,  
gives these drivers an ideal combination of superb high  
frequency response and resistance to fatigue. The DH7  
provides smooth response from 1000-20,000 Hz.  
Electrical Connection: Screw Terminals (Accepts a pair of  
12GA Wires  
Polarity: Positive Voltage to Positive Terminal  
Produces a Positive Acoustic  
Pressure  
Flux Density: 1.7 Tesla  
Net Weight (each): 10.0 lbs (4.5 kg)  
Shipping Weight: 11.0 lbs (5.0 kg)  
1 Power capacity per AES standard. Continuous pink noise, 1000 - 10000 Hz with a 6 dB crest factor, 2 hours.  
2 Sound Pressure measured on axis in the far field with 1 Watt input of band-limited pink noise from 1000 - 5000 Hz  
and calculated to 1 Meter equivalent by inverse square law.  
 

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