Behringer iNUKE NU3000DSP Power Amplifier User Manual

1. Introduction and Overview

The Behringer iNUKE NU3000DSP power amplifier is designed to deliver massive output power in an exceptionally lightweight, rack-mountable package. Featuring revolutionary high-density Class-D technology and ultra-efficient switch-mode power supplies, this amplifier ensures reliable performance for extended periods.

It offers superb transient response, reacting instantly to demanding electronic bass impulses. The efficient design allows it to run cooler than conventional amplifiers, eliminating the need for massive heat sinks and heavy toroidal transformers. The front panel provides vital system information at a glance, with a Power LED indicating readiness and positive-detent Gain controls with Signal and Clip LEDs for monitoring input signals.

2. Key Features

• Delivers 2 x 1500 Watts into 2 Ohms; 2 x 900 Watts into 4 Ohms; 3000 Watts into 4 Ohms (bridge mode) and weighs less than 8 lbs / 3.5 kg.
• Ultimate reliability through revolutionary cool-running High-Density Class-D technology with "near-zero" thermal buildup.
• Ultra-efficient switch-mode power supply for noise-free audio, superior transient response and low power consumption.
• High-performance DSP and 24-bit/96 kHz converters deliver ultimate signal integrity and extreme dynamic range.
• DSP section features sophisticated delay, crossover (3 filter types, up to 48 dB/octave), EQ (8 parametric, 2 dynamic), dynamics processing and lockable security settings.

3. Setup

Before connecting the amplifier, ensure all audio equipment is powered off. Connect your audio sources to the input jacks and your speakers to the output connectors. The iNUKE NU3000DSP can be controlled directly from its front panel or via a computer using the USB interface and iNUKE Remote Connect software.

Power Connection: Connect the power cable to the AC inlet on the rear panel and then to a suitable power outlet. The unit supports 120V~, 50/60Hz, 350W.

Figure 3.1: Rear panel connections, including power inlet, input jacks for channels A and B, and speaker output connectors.

USB Connection: For advanced control and configuration, connect the amplifier to a computer using a USB cable. The USB port is located on the front panel.

Figure 3.2: Front panel with USB port for connecting to a computer for software control.

4. Operating the iNUKE NU3000DSP

The iNUKE NU3000DSP offers flexible operation through its front panel controls and the iNUKE Remote Connect software.

4.1 Front Panel Controls

• Power Button: Activates the amplifier. The Power LED illuminates when ready.
• Gain Controls: Positive-detent controls for each channel (CH A, CH B) with illuminated rings for precise level setting.
• Signal and Clip LEDs: Signal LEDs light when an input signal is present. Clip LEDs indicate signal distortion, prompting a reduction in input level.
• LCD Display: Allows setup and adjustment of DSP parameters directly from the front panel without the need for a PC.
• Navigation Buttons: Used to navigate menus and adjust settings on the LCD display.

4.2 DSP Control via Software (iNUKE Remote Connect)

The iNUKE Remote Connect software provides comprehensive control over the amplifier's DSP functions. Connect the amplifier to your computer via USB to access the software interface.

• Configuration Tab: Select amplifier modes (Dual Mono, Stereo, Bi-Amp 1, Bi-Amp 2, Bridge) and adjust channel-specific settings like delay and peak limiters.
• Filter/Crossover Tab: Set crossover points for your PA system, including high-pass and low-pass filters with various types (Linkwitz-Riley, Butterworth, Bessel) and slopes (up to 48 dB/octave).
• Parametric EQ Tab: Utilize eight parametric filters per channel for precise frequency adjustments. These can be configured as notch filters or broadband EQs.
• Dynamic EQ Tab: Two channels of dynamic EQ allow for frequency-specific gain adjustments that respond dynamically to the input program material.
• Setup Tab: Manage amplifier connections, input/output levels, and save/recall up to 20 presets.

4.3 Advanced Features

• Zero-Attack Limiters: Provide maximum output level with reliable overload protection.
• Built-in Subwoofer Satellite Crossover: Ensures perfect subwoofer operation and integration with full-range speakers.
• Lockable Security Settings: Protect your DSP configurations from unauthorized changes.

5. Connections

The iNUKE NU3000DSP offers versatile input and output options to integrate with various audio systems.

5.1 Input Connections

The amplifier features combination input jacks that accept both XLR and 1/4" TRS connectors, allowing connection of balanced or unbalanced sources.

• XLR Inputs: For balanced connections from professional audio equipment.
• 1/4" TRS Inputs: For balanced or unbalanced connections from various audio devices.

5.2 Output Connections

Professional twist-lock speaker connectors ensure secure and reliable connections to your loudspeakers.

• Twist-Lock Speaker Outputs: For connecting speakers to Channel A and Channel B, or for bridged-mono operation.

6. Maintenance

Proper maintenance ensures the longevity and optimal performance of your iNUKE NU3000DSP amplifier.

• Cooling System: The amplifier utilizes back-to-front air ventilation to prevent thermal buildup. Ensure the fan vents on the rear panel are not blocked to maintain proper airflow.
• Protection Circuitry: Independent DC, LF (Low Frequency), and thermal overload protection on each channel safeguard both the amplifier and connected speakers, preventing shutdowns during operation.
• Cleaning: Regularly clean the exterior of the amplifier with a soft, dry cloth. Avoid using abrasive cleaners or solvents. Ensure no dust or debris accumulates in the fan vents.
• Storage: When not in use for extended periods, store the amplifier in a cool, dry place, protected from dust and extreme temperatures.

7. Troubleshooting

If you encounter issues with your iNUKE NU3000DSP, consider the following basic troubleshooting steps:

• No Power: Ensure the power cable is securely connected to both the amplifier and a working power outlet. Check the power switch.
• No Sound: Verify all input and output cables are correctly connected. Check the gain controls on the front panel and ensure they are not set to minimum. Confirm that your audio source is active and sending a signal.
• Distorted Sound: If the Clip LEDs are illuminating, reduce the input signal level from your source or the amplifier's gain controls. Check speaker impedance compatibility.
• Overheating: Ensure the fan vents are clear and unobstructed. Operate the amplifier in a well-ventilated area.
• Software Connection Issues: Ensure the USB cable is properly connected. Restart the iNUKE Remote Connect software and the amplifier. Check your computer's device manager to confirm the amplifier is recognized.

For more complex issues, consult the full technical manual available on the Behringer website or contact Behringer customer support.

8. Technical Specifications

9. Warranty and Support

Behringer products are designed for reliability and performance. For detailed warranty information, product registration, and access to technical support resources, please visit the official Behringer website. You can find comprehensive FAQs, driver downloads, and contact information for customer service.

Official Website: www.behringer.com