1. Introduction
Thank you for choosing the Behringer NX1000D power amplifier. This manual provides essential information for the safe operation, setup, and maintenance of your device. Please read it thoroughly before use to ensure optimal performance and longevity.
The NX1000D is an ultra-lightweight 1000-watt Class-D power amplifier featuring a high-performance DSP and USB interface, designed for professional audio applications.
2. Important Safety Instructions
Always follow these basic precautions when using electrical products to reduce the risk of fire, electric shock, and injury to persons:
- Read these instructions.
- Keep these instructions.
- Heed all warnings.
- Follow all instructions.
- Do not use this apparatus near water.
- Clean only with dry cloth.
- Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
- Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
- Only use attachments/accessories specified by the manufacturer.
- Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
- Unplug this apparatus during lightning storms or when unused for long periods of time.
- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
3. Key Features
- Delivers 2 x 500 watts into 2 ohms; 2 x 300 watts into 4 ohms; 1000 watts into 4 ohms (Bridge mode).
- Ultra-lightweight design, weighing less than 7.5 lbs / 3.4 kg.
- Revolutionary cool-running high-density Class-D technology for ultimate reliability and "near-zero" thermal buildup.
- Ultra-efficient switch-mode power supply ensures noise-free audio, superior transient response, and low power consumption.
- High-performance DSP and 24-bit/96 kHz converters provide ultimate signal integrity and extreme dynamic range.
- DSP section includes sophisticated delay, crossover (3 filter types, up to 48 dB/octave), EQ (8 parametric, 2 dynamic), dynamics processing, and lockable security settings.
4. Setup and Connections
This section guides you through the initial setup of your NX1000D amplifier.
4.1 Unpacking
Carefully unpack the amplifier and inspect it for any signs of damage during transit. Retain the original packaging for future transport or storage.
What's in the Box:
- Behringer NX1000D Power Amplifier
- Power Cord
- User Manual (this document)
4.2 Front Panel Overview
Figure 1: Front panel of the Behringer NX1000D. This image shows the main controls and indicators, including channel level knobs, signal/limit/protect LEDs, the LCD display, navigation buttons, and the power switch.
The front panel provides access to all essential controls and indicators for monitoring and adjusting the amplifier's performance.
- CH A/B Level Knobs: Adjust the input sensitivity for each channel.
- Signal/Limit/Protect LEDs: Indicate signal presence, clipping (limiting), and protection mode activation.
- LCD Display: Shows DSP settings, operating modes, and system status.
- Navigation Buttons (SETUP, PROCESS, UP, DOWN, ENTER, EXIT): Used to navigate and adjust DSP parameters.
- Power Switch: Turns the unit on or off.
4.3 Rear Panel Connections
Figure 2: Angled view of the Behringer NX1000D, providing a perspective of the front panel and side ventilation. While this image doesn't explicitly show the rear panel, it illustrates the overall form factor. The rear panel typically contains input connectors (XLR/TRS), output connectors (SpeakON), a USB port for DSP control, and the AC power inlet.
The rear panel houses all input and output connections, as well as the power inlet.
- Input Connectors: Typically XLR and 1/4" TRS combo jacks for balanced audio input.
- Output Connectors: SpeakON connectors for connecting to loudspeakers.
- USB Port: For connecting to a computer to control DSP functions via dedicated software.
- AC Power Inlet: For connecting the supplied power cord.
4.4 Connecting Audio
- Ensure the amplifier is turned off before making any connections.
- Connect your audio source (mixer, preamplifier) to the input connectors on the rear panel using appropriate balanced cables.
- Connect your loudspeakers to the output connectors using high-quality SpeakON cables. Ensure correct polarity and impedance matching.
- Connect the power cord to the AC power inlet and then to a suitable power outlet.
5. Operating Instructions
This section covers the basic operation and DSP control of your NX1000D amplifier.
5.1 Powering On/Off
- Before powering on, ensure all connections are secure and input levels are set to minimum.
- Press the POWER switch on the front panel to turn the amplifier on. The display will illuminate.
- To power off, press the POWER switch again.
5.2 Basic Level Adjustment
Use the CH A and CH B level knobs on the front panel to adjust the output volume for each channel. Monitor the SIGNAL and LIMIT LEDs to prevent clipping.
- SIGNAL LED: Illuminates when an audio signal is present.
- LIMIT LED: Illuminates when the amplifier is reaching its maximum output. Reduce input level if this LED is constantly lit.
- PROTECT LED: Illuminates if the amplifier enters protection mode due to overheating, short circuit, or other fault. Turn off the unit, check connections, and allow it to cool before restarting.
5.3 DSP Control
The NX1000D features an integrated DSP for advanced audio processing. Use the navigation buttons and LCD display to access and adjust parameters.
- SETUP: Enters the main setup menu.
- PROCESS: Accesses specific DSP processing blocks (e.g., EQ, Crossover, Dynamics).
- UP/DOWN: Navigates through menu options or adjusts parameter values.
- ENTER: Confirms a selection or value.
- EXIT: Returns to the previous menu or the main display.
For detailed DSP parameter adjustments, refer to the comprehensive software manual available on the Behringer website, which covers the USB interface and PC control application.
6. Maintenance
Proper maintenance ensures the longevity and reliable operation of your NX1000D amplifier.
- Cleaning: Clean the unit with a dry, soft cloth. Do not use liquid cleaners or solvents.
- Ventilation: Ensure that all ventilation openings are clear and unobstructed. Do not operate the amplifier in an enclosed space without adequate airflow.
- Storage: If storing the unit for an extended period, disconnect it from power, clean it, and store it in its original packaging in a dry, cool environment.
- Servicing: Refer all servicing to qualified service personnel. There are no user-serviceable parts inside.
7. Troubleshooting
If you encounter issues with your NX1000D, consult the table below before contacting support.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected; Power outlet faulty; Unit fuse blown. | Check power cord connection; Try a different outlet; Contact qualified service personnel for fuse replacement. |
| No sound output | Input cables disconnected; Output cables disconnected; Input level too low; Amplifier in protection mode. | Check all audio cable connections; Increase input level; Check PROTECT LED and troubleshoot accordingly. |
| Distorted sound | Input signal too high (clipping); Speaker impedance mismatch; Faulty cables. | Reduce input level (check LIMIT LED); Ensure speakers match amplifier impedance; Test or replace cables. |
| Unit overheats / PROTECT LED on | Insufficient ventilation; Overload (too low impedance speakers); Internal fault. | Ensure clear ventilation; Check speaker impedance; Turn off, let cool, then restart. If problem persists, seek service. |
8. Technical Specifications
| Feature | Detail |
|---|---|
| Model | NX1000D |
| Output Power (2 Ohms) | 2 x 500 Watts |
| Output Power (4 Ohms) | 2 x 300 Watts |
| Output Power (Bridge Mode, 4 Ohms) | 1000 Watts |
| Amplifier Type | Class-D |
| DSP | Integrated, with Delay, Crossover, EQ, Dynamics |
| Converters | 24-bit/96 kHz |
| Input Voltage | 120V AC (Region dependent) |
| Power Source | Corded Electric |
| Dimensions (H x W x D) | 3.7 x 19.02 x 9.09 inches (approx. 94 x 483 x 231 mm) |
| Weight | 7.48 lbs / 3.4 kg |
| Compatible Devices | Monitor (as in studio monitors, PA speakers) |
9. Warranty and Support
For detailed warranty information and to register your product, please visit the official Behringer website. Technical support and service inquiries should be directed to Behringer customer service.
Online Resources:
- Official Behringer Website: www.behringer.com
- Product Registration: Register your product to ensure full warranty coverage and access to support.
- Downloads: Access the latest drivers, firmware, and comprehensive software manuals for DSP control.
