DH7-8/DH7-16
3-Inch High Frequency
Transducer
Key Features:
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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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