HIFONICS BRX1516.10 (01) PDF Document

Many new and factory radios require a reset code when disconnected from battery power. This is an anti-theft feature. Before unplugging power, you must determine if your radio/source unit requires a reset code. Check the operation manual for your vehicle or contact the dealer.

Be prepared to disarm your vehicle’s alarm and to enter your radio / source unit code.

It is critical to use the proper power and ground cable for your HIFONICS BRX1516.10 amplifier. Select the size listed in the table for your amplifier model. Always use high quality copper cable. Be sure to use the proper fuse size for each model. Some models require an external fuse.

Follow these steps for a complete installation:

1. Disconnect negative battery terminal: Place the terminal in a secure position so that it won’t accidentally contact the negative battery post.

2. Run Cables: Properly route power, speaker, and RCA cables through the vehicle.

3. Mount Amplifier: Choose a mounting location that will provide adequate air ventilation. Mount the amplifier to a secure surface. Do not mount the amplifier upside down.

4. Chassis Ground: The chassis ground connection is critical. Choose a location that is close to the amplifier. Completely scrape away the paint to expose bare metal and use a nut and bolt if possible. DO NOT USE AN EXISTING FACTORY BOLT.

5. Negative Power Connection: Attach the chassis ground cable to the amplifier negative (GND) terminal. It is important to make sure this connection is very tight.

6. Remote Turn-on Connection: Attach the remote turn on wire to the amplifier remote (REM) output of the source unit.

7. Positive Power Connection: Attach the main power cable to the amplifier +12V terminal. The cable must run directly to the battery and be properly fused and be very tight.

8. Signal Input Connection: Connect the RCA cables to the INPUT connectors. The OUTPUT can be used to provide input for a second amplifier.

9. Level Control: Before proceeding, turn the LEVEL control completely counter-clockwise to its minimum setting.

10. Speaker Connections: Connect the speaker cables to the speaker output connectors. Follow the diagram that best fits your speaker configuration.

11. Positive Battery Connection: Connect the power cable to the positive battery terminal. The power cable must be fused within 18 inches of the battery terminal.

12. Re-connect Negative Battery Terminal: Re-connect the negative battery terminal, making sure it is securely tightened.

Connect the speaker cables to the speaker output connectors based on your desired configuration:

Stereo: Connect the left speaker positive (+) wire to the LEFT + terminal and the negative (-) wire to the LEFT – terminal. Connect the right speaker positive (+) wire to the RIGHT + terminal and the negative (-) wire to the RIGHT – terminal.

Bridged: For a single bridged speaker, connect the speaker’s positive (+) wire to the LEFT + terminal and the speaker’s negative (-) wire to the RIGHT – terminal.

Monoblock single woofer: Connect the woofer’s positive (+) wire to one of the + terminals and the negative (-) wire to one of the – terminals on the speaker output.

Monoblock multiple woofers: Connect the woofers by wiring them to the positive (+) and negative (-) speaker output terminals, ensuring the final impedance is within the amplifier’s specifications.

Input Mode: The input MODE switch will “sum” or combine the right and left channel signals in the MONO position to improve bass performance. Select MONO only when the amp is being used for subwoofers. Otherwise, select STEREO.

Xover Mode: The XOVER Mode switch sets the type of crossover that will be active. You can select FULL (full range), HP (high pass filter), or LP (low pass filter).

High pass Adjustment (HPF): The HPF control will limit the output below the selected frequency. This is typically used to protect midrange and high frequency speakers from damage and to allow a smooth transition from a subwoofer.

Low pass Adjustment (LPF): The LPF control will limit output above the selected frequency. This is used to allow a smooth transition to the higher frequency speakers.

Bass Boost (BASS EQ): The Bass EQ control will increase the power output at 45Hz for more pronounced bass. Exercise caution when using this control. Increase the level in small amounts until distortion is noticed, then back off a little.

Remote Level Control: Some models include a bass remote. Avoid adjusting the bass remote while operating the vehicle.

Setting the input level is a critical step to ensure your amplifier is properly adjusted to match the signal output level of your source unit. THIS IS NOT A VOLUME CONTROL. Follow these steps:

1. If possible, with the source unit off, confirm that the primary volume control is turned down (counter-clockwise).

2. Turn on the source unit (CD, or MP3 player). Re-confirm that the volume is turned down. Make sure the source unit controls; balance, fader, bass and treble are all set to center or “0” adjustment. Make sure that the green LED on the end of the amplifier is illuminated.

3. Play a clean musical selection of which you are very familiar. CD is preferred. Do not use radio signals for level setting. Hit play and start turning the volume of the source unit up.

4. Stop increasing the source unit volume when you reach 3/4 (about 75%) or until you hear speakers begin to slightly start producing distortion.

5. Increase the amplifier level (clockwise) until distortion is heard, then back the level down (counter-clockwise) until the distortion is eliminated. Small adjustments may need to be made to balance the levels of multiple amplifiers.