Introduction
Thank you for choosing the Nemesis Audio NA-1600X4D 4-Channel Car Stereo Amplifier. This amplifier is designed to deliver powerful and clear audio performance for your vehicle's sound system. This manual provides essential information for the proper installation, operation, and maintenance of your amplifier. Please read this manual thoroughly before attempting installation or operation to ensure optimal performance and safety.
Image: The Nemesis Audio NA-1600X4D 4-Channel Car Stereo Amplifier, showcasing its compact black metal chassis with heat sink fins, input/output terminals, and control knobs. The model number 'NA-1600X4D' and '1600W MAX' are visible on the top surface.
Setup and Installation
Proper installation is crucial for the performance and longevity of your amplifier. It is recommended that installation be performed by a qualified professional.
Mounting
- The NA-1600X4D is designed for surface mounting. Choose a secure, dry location in your vehicle that is well-ventilated and away from direct sunlight or heat sources.
- Ensure the mounting surface is sturdy enough to support the amplifier's weight (approximately 3.5 lbs).
- Allow sufficient space around the amplifier for proper air circulation to prevent overheating.
Wiring Connections
Before making any connections, disconnect the vehicle's negative battery terminal to prevent electrical shorts.
- Power Connection (B+): Connect a heavy-gauge power cable (minimum 8 AWG recommended) directly from the positive terminal of the vehicle's battery to the amplifier's B+ terminal. Install an appropriate fuse holder (not supplied) within 18 inches of the battery.
- Ground Connection (GND): Connect a heavy-gauge ground cable (minimum 8 AWG recommended) from the amplifier's GND terminal to a clean, unpainted metal surface of the vehicle's chassis. Ensure a solid, low-resistance connection.
- Remote Turn-On (REM): Connect a remote turn-on wire from your head unit's remote output to the amplifier's REM terminal. This wire signals the amplifier to turn on when the head unit is active.
- RCA Input Connections: Connect RCA cables from your head unit's pre-amp outputs to the amplifier's RCA input jacks. Ensure correct channel matching (Front L/R, Rear L/R).
- Speaker Output Connections: Connect your speakers to the amplifier's speaker output terminals. The NA-1600X4D is a 4-channel amplifier, allowing connection of up to four speakers. Ensure correct polarity (+ to + and - to -) for each speaker. The amplifier supports a minimum load of 2 Ohms per channel.
- Fuse Installation: The amplifier is equipped with two 30A blade fuses. Ensure these are properly seated in their respective slots before powering on the unit.
Operation and Controls
Once installed, the amplifier can be configured using its onboard controls.
Control Panel Overview
- Input Level (GAIN): This control adjusts the input sensitivity of the amplifier to match the output voltage of your head unit. It ranges from 0.2V to 6V. Start with the gain at minimum and slowly increase it until you achieve clear, undistorted sound at your desired volume level.
- Low Pass Filter (LPF): This filter allows frequencies below the set point to pass through to the speakers, blocking higher frequencies. The adjustable range is 50Hz to 250Hz. This is typically used for subwoofers or mid-bass speakers.
- Subsonic Filter: This filter removes extremely low, inaudible frequencies that can waste amplifier power and potentially damage speakers. The adjustable range is 5Hz to 50Hz.
- Bass Boost Frequency: This control selects the center frequency for the bass boost function, ranging from 30Hz to 80Hz.
- Bass Boost Level: This control adjusts the intensity of the bass boost, from 0dB to 12dB. Use sparingly to avoid distortion.
Indicator Lights
- Power LED (Green): Illuminates when the amplifier is powered on and operating normally.
- Protection LED (Red): Illuminates when the amplifier enters protection mode due to overheating, short circuit, or low voltage. Refer to the Troubleshooting section if this light activates.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your amplifier.
- Cleaning: Periodically wipe the amplifier's exterior with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners. Ensure ventilation fins are free from dust and debris.
- Connection Check: Annually, or if you experience issues, check all power, ground, remote, and speaker connections to ensure they are secure and free from corrosion.
- Fuse Replacement: If a fuse blows, replace it only with a fuse of the same type and rating (30A blade fuse). Using a fuse with a higher rating can damage the amplifier or cause a fire.
Troubleshooting
If you encounter issues with your amplifier, refer to the following common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power (Power LED Off) | Blown fuse; Loose power/ground connection; No remote signal. | Check and replace fuses; Verify all power, ground, and remote wire connections are secure; Ensure head unit is on and sending remote signal. |
| Protection LED On (Red) | Overheating; Short circuit in speaker wiring; Low voltage. | Allow amplifier to cool down; Check speaker wires for shorts to chassis or each other; Verify vehicle's battery voltage. |
| No Sound Output | RCA cables disconnected; Speaker wires disconnected; Gain set too low; Head unit volume too low. | Check RCA and speaker connections; Adjust gain control; Increase head unit volume. |
| Distorted Sound | Gain set too high; Improper filter settings; Damaged speakers. | Reduce gain setting; Adjust LPF/Subsonic filter settings; Inspect speakers for damage. |
Specifications
Detailed technical specifications for the Nemesis Audio NA-1600X4D amplifier.
- Model: NA-1600X4D
- Channels: 4
- Output Power (Max): 1600 Watts
- RMS Power @ 4 Ohm: 4 x 100W
- Max Power @ 4 Ohm: 4 x 200W
- RMS Power @ 2 Ohm: 4 x 200W
- Max Power @ 2 Ohm: 4 x 400W
- Input Level: 0.2V – 6V
- Frequency Response: 20Hz – 20kHz
- Low Pass Filter (LPF): 50Hz – 250Hz
- Subsonic Filter: 5Hz – 50Hz
- Bass Boost Frequency: 30Hz – 80Hz
- Bass Boost Level: 0dB – 12dB
- Current Draw: 76A
- THD at 4 Ohm load 30% Rated Power: <0.5%
- Signal to Noise Ratio: 80dB
- Minimum Load: 2 Ohm
- Dimensions (LxWxH): 253 x 121 x 44mm (approx. 11 x 3 x 6 inches)
- Item Weight: 3.5 pounds
- Material: Metal
- Supply Voltage Range: 0.2 Volts (Min) - 6 Volts (Max)
- UPC: 764488483921
Warranty and Support
For information regarding warranty coverage, terms, and conditions, please refer to the official Nemesis Audio website or contact their customer support directly. The contents of the product package are as per the manufacturer's site.
For technical assistance or further inquiries, please visit the Nemesis Audio official support channels.
