EVF-2151D - Speakers ELECTRO-VOICE - Free user manual and instructions
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| Product Type | Professional dual 15-inch 2-way loudspeaker |
| Series | EVF Series |
| Woofer | 2 x 15-inch (381 mm) high-power woofers with 4-inch voice coils |
| High-Frequency Driver | 3-inch (76 mm) titanium compression driver |
| Frequency Response (-3 dB) | 45 Hz – 18 kHz |
| Frequency Range (-10 dB) | 35 Hz – 20 kHz |
| Sensitivity (1W/1m) | 101 dB (average) |
| Continuous Power Handling | 1200 W (4 ohms) |
| Peak Power Handling | 4800 W |
| Impedance | 4 ohms (dual driver configuration) |
| Maximum SPL | 135 dB continuous (estimated) |
| Nominal Directivity (-6 dB) | 90° x 50°, rotatable |
| Crossover Frequency | 1.2 kHz (internal passive crossover) |
| Connectors | 2 x Neutrik NL4 SpeakON, each paralleled with Phoenix screw terminals |
| Input Wiring | Switchable to pass through signal or bi-amp mode (via crossover option) |
| Enclosure Material | Baltic birch plywood with high-impact black textured coating |
| Grille | 18-gauge powder-coated steel grille with acoustic foam backing |
| Rigging Points | 12 x M10 threaded points for overhead suspension |
| Dimensions (H x W x D) | 45.5 in x 21.3 in x 19.7 in (1156 x 541 x 500 mm) |
| Weight | 128 lb (58 kg) |
| Recommended Amplifier Power | 1000-2000 W per side into 4 ohms |
Frequently Asked Questions - EVF-2151D ELECTRO-VOICE
What is the best way to mount the EVF-2151D?
The EVF-2151D features M10 threaded rigging points for overhead suspension. Use rated eyebolts or shoulder hooks with proper safety cables. For pole mounting, ensure the pole is rated for the speaker's weight. Always follow local rigging regulations.
Can I use the EVF-2151D as a floor monitor?
Yes, the cabinet's shape allows it to be placed on its side at a 50° monitor angle. When doing so, rotate the waveguide to maintain optimal horizontal/vertical coverage. Verify the grille and mounting points are not obstructed.
How should I connect the speaker to an amplifier?
Use a Neutrik NL4 SpeakON cable or the Phoenix screw terminals. Pins 1+/1- are the default input; pins 2+/2- are typically used for loop-through. Ensure the amplifier output matches the speaker's 4-ohm load. Do not run stripped wires and tighten terminals securely.
What is the recommended crossover setting when using a subwoofer?
For full-range operation, set the high-pass filter to 30-35 Hz to protect the woofers. If using a subwoofer, set the crossover around 100-120 Hz with a 24 dB/octave slope. This ensures a seamless transition and reduces distortion.
How do I protect the speaker from outdoor weather conditions?
The EVF-2151D has a weather-resistant coating and powder-coated grille, but it is not fully waterproof. Use a weatherproof cover when installed outdoors. Keep connections shielded and use flexible conduit to prevent moisture ingress. Check the IP rating of any optional transformers or modules.
What maintenance does the speaker require?
Regularly inspect the grille for debris and the connections for corrosion. Wipe the cabinet with a dry cloth. Check torque on the rigging screws every few months. If the speaker is used heavily, listen for distortion and test the drivers with a multimeter.
What is the proper impedance when connecting multiple speakers?
The EVF-2151D is a 4-ohm speaker. For parallel connection, the total impedance is divided by the number of speakers. Two speakers in parallel present a 2-ohm load, which may overload some amplifiers. To match the amplifier, use series wiring or dedicated transformers for distributed systems.
Can I use the EVF-2151D with a passive crossover?
Yes, the EVF-2151D has a built-in passive crossover network. For bi-amped operation, you can bypass the internal crossover by using the NL4 connectors in a 2-pin mode (pins 1 for LF, pins 2 for HF). Consult the manual for specific bypass instructions.
How to clean the grille?
Use a soft brush or a vacuum on low suction to remove dust. For stubborn dirt, gently clean with a damp cloth and mild detergent. Never use abrasive tools that could damage the powder coating. Allow the grille to dry completely before reassembly.
What is the power handling specification and how do I match an amplifier?
The speaker handles 1200 W continuous (4800 W peak). For best performance, choose an amplifier that delivers 1000-2000 W per channel at 4 ohms. Using a larger amplifier is acceptable if you set the limiter correctly to prevent mechanical damage.
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USER MANUAL EVF-2151D ELECTRO-VOICE
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Product information
Brand : ELECTRO-VOICE
Model : EVF-2151D
Category : Speakers