Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Hifonics BXX2000.1D Brutus Class D Mono Car Subwoofer Amplifier. Please read this manual thoroughly before attempting installation or operation to ensure proper use and to prevent damage to the unit or your vehicle's audio system.
Safety Information
- Always disconnect the vehicle's battery negative terminal before beginning any electrical work.
- Ensure all wiring is properly routed and secured to prevent pinching, cutting, or short circuits.
- Use appropriate gauge power and ground wires as specified in the installation section.
- Mount the amplifier securely in a location that allows for adequate ventilation and is protected from moisture and excessive heat.
- Do not operate the amplifier if it is damaged or malfunctioning. Refer to the troubleshooting section or contact qualified service personnel.
- This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Product Overview
The Hifonics BXX2000.1D is a high-performance Class D monoblock amplifier designed to deliver powerful and clean bass to your subwoofer system. It features robust construction and a range of adjustable controls for optimal sound tuning.
Figure 1: Angled view of the Hifonics BXX2000.1D amplifier, highlighting its design and branding.
Control Panel Features
Figure 2: Amplifier control panel with input/output connections and audio adjustment settings.
- INPUT (RCA): Audio signal input from your head unit or source.
- OUTPUT (RCA): Full-range RCA output for connecting to another amplifier.
- LEVEL (Gain): Adjusts the input sensitivity to match the output of your head unit.
- PHASE: 0° to 180° phase adjustment for subwoofer integration.
- REMOTE HFR-31: Port for optional wired remote bass control.
- BASS EQ: Adjustable bass boost (0dB to 10dB).
- SUBSONIC: High-pass filter (15Hz to 35Hz) to protect subwoofers from ultra-low frequencies.
- LPF (Low Pass Filter): Low-pass filter (30Hz to 250Hz) to allow only bass frequencies to the subwoofer.
- POWER/PROTECT LEDs: Indicators for amplifier status.
Power and Speaker Terminal Features
Figure 3: Amplifier power and speaker terminal connections.
- GND (Ground): Connects to the vehicle's chassis ground.
- REM (Remote): Connects to the remote turn-on lead from the head unit.
- BATT+12V: Connects directly to the vehicle's positive battery terminal.
- SPEAKER OUTPUT: Connects to your subwoofer(s).
Setup and Installation
Proper installation is crucial for the performance and longevity of your amplifier. If you are unsure about any part of the installation process, consult a professional installer.
Mounting Location
Choose a mounting location that is dry, well-ventilated, and secure. Avoid mounting the amplifier directly on carpet or in enclosed spaces that restrict airflow. Ensure there is enough space around the amplifier for air circulation.
Wiring Connections
- Power (BATT+12V): Run a heavy gauge power cable (e.g., 4 AWG or larger for 2000W RMS) directly from the positive terminal of the vehicle's battery to the BATT+12V terminal on the amplifier. Install an appropriate fuse holder (e.g., 150A) within 18 inches (45 cm) of the battery.
- Ground (GND): Connect a heavy gauge ground cable (same gauge as power cable) from the GND terminal on the amplifier to a clean, unpainted metal surface on the vehicle's chassis. Ensure a solid, low-resistance connection.
- Remote (REM): Connect a smaller gauge wire (e.g., 18 AWG) from the remote turn-on output of your head unit to the REM terminal on the amplifier. This wire signals the amplifier to turn on and off with your head unit.
- RCA Input: Connect RCA cables from the subwoofer output of your head unit to the INPUT RCA jacks on the amplifier.
- Speaker Output: Connect your subwoofer(s) to the SPEAKER OUTPUT terminals. Ensure correct polarity (+ to + and - to -). For 1 Ohm stable operation, ensure your subwoofer wiring configuration results in a final impedance of 1 Ohm. Refer to your subwoofer's manual for wiring options.
Operating Instructions
Once installed, follow these steps to configure your amplifier for optimal performance.
Initial Setup
- Turn the LEVEL (Gain) control to its minimum (fully counter-clockwise) position.
- Set the LPF (Low Pass Filter) to an appropriate frequency, typically between 80Hz and 120Hz for subwoofers.
- Set the SUBSONIC filter to a frequency below your subwoofer's resonant frequency, usually between 20Hz and 30Hz, to protect the subwoofer from over-excursion.
- Set the BASS EQ to 0dB (off) initially.
- Set the PHASE to 0°.
Adjusting Gain (Level)
The gain control matches the amplifier's input sensitivity to the output voltage of your head unit. It is not a volume control.
- Play a familiar music track with strong bass content at a moderate volume level on your head unit (around 75-80% of maximum volume).
- Slowly increase the LEVEL (Gain) control on the amplifier until you hear distortion, then back it off slightly until the sound is clean.
- The POWER LED should be green. If the PROTECT LED illuminates red, reduce the gain or check for wiring issues.
Fine-Tuning
- LPF: Adjust the LPF to blend the subwoofer output seamlessly with your main speakers. Lower frequencies will make the bass less directional.
- SUBSONIC: If your subwoofer is bottoming out or you hear unwanted ultra-low frequencies, increase the subsonic filter frequency.
- BASS EQ: Use the Bass EQ sparingly to add a slight boost to bass frequencies if desired. Excessive boost can lead to distortion and potential damage.
- PHASE: Experiment with the 0° and 180° phase settings to find the one that provides the most impactful and coherent bass response in your listening position.
Maintenance
- Keep the amplifier clean and free of dust and debris. Use a soft, dry cloth for cleaning.
- Ensure the heatsink fins are not obstructed to allow for proper cooling.
- Periodically check all wiring connections for tightness and corrosion.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power (POWER LED off) | Blown fuse, poor power/ground connection, no remote signal. | Check inline fuse, verify power and ground connections, check remote wire connection and head unit output. |
| PROTECT LED is red | Short circuit in speaker wiring, impedance too low, amplifier overheating, DC offset. | Check speaker wiring for shorts, verify speaker impedance, ensure adequate ventilation, consult a professional if issue persists. |
| No Sound | RCA cables disconnected, gain too low, head unit settings, speaker wires disconnected. | Check RCA connections, adjust gain, verify head unit output, check speaker wiring. |
| Distorted Sound | Gain set too high, improper LPF/Subsonic settings, damaged speaker. | Reduce gain, adjust LPF/Subsonic, inspect speaker for damage. |
Specifications
- Model: BXX2000.1D
- Amplifier Class: Class D
- RMS Power Output: 2000W RMS @ 1 Ohm (Mono)
- Product Dimensions: 21.8 x 10.2 x 3.7 inches
- Item Weight: 11.08 pounds
- Low Pass Filter (LPF): 30Hz - 250Hz
- Subsonic Filter: 15Hz - 35Hz
- Bass EQ: 0dB - 10dB
- Phase Control: 0° - 180°
- Minimum Impedance: 1 Ohm
Warranty and Support
Hifonics products are designed and engineered for reliable performance. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Hifonics website. For technical support or service inquiries, please contact Hifonics customer service or your authorized dealer.