HIFONICS BRX2416.10 (01) PDF Document

Many new and factory radios require a reset code when disconnected from battery power as 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. You should also be prepared to disarm your vehicle’s alarm.

It is critical to use the proper power and ground cable 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. The recommended sizes are as follows:

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

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

Step 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.

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

Step 5. Negative Power Connection: Attach the chassis ground cable to the amplifier negative terminal. Ensure this connection is very tight.

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

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

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

Connect the speaker cables to the speaker output connectors. You should follow the diagram that best fits your speaker configuration. The manual provides diagrams for the following setups:

Stereo: Connect left and right speakers to the corresponding positive (+) and negative (-) terminals.

Bridged: For a bridged connection, connect the speaker’s positive lead to the LEFT+ terminal and the negative lead to the RIGHT- terminal.

Monoblock single woofer: Connect the woofer to the positive (+) and negative (-) speaker output terminals.

Monoblock multiple woofers: Connect multiple woofers to the positive (+) and negative (-) speaker output terminals according to the appropriate wiring configuration for your desired impedance.

After connecting the power cable to the amplifier’s +12V terminal, connect the other end to the positive battery terminal. The power cable must be fused within 18 inches of the battery terminal.

Re-connect the negative battery terminal, making sure it is securely tightened. Be prepared to enter your radio / source unit code if required.

Setting the 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. The input level range is from 9V to 0.2V.

Step 1. Before beginning, turn the LEVEL control on the amplifier completely counter-clockwise to minimum.

Step 2. If possible, with the source unit off, confirm that the primary volume control is turned down (counter clockwise).

Step 3. 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.

Step 4. 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.

Step 5. Stop increasing the source unit volume when you reach 3/4 (about 75%) or until you hear speakers begin to slightly start producing distortion.

Step 6. 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.

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. For other applications, select STEREO.

The XOVER Mode switch sets the type of crossover that will be active. 4 channel models will have two switches, one for each set of channels. The modes are:

FULL: Full range output.

HP: High Pass filter is active.

LP: Low Pass filter is active.

The HPF (high pass filter) control will limit the output below the selected frequency (adjustable from 60Hz to 1.3KHz). This is typically used to protect midrange and high-frequency speakers from damage and to allow a smooth transition from a subwoofer.

The LPF (low pass filter) control will limit output above the selected frequency (adjustable from 35Hz to 250Hz). This is used to allow a smooth transition to the higher frequency speakers, such as in a subwoofer application.

The Bass EQ control will increase the power output at 45Hz for more pronounced bass, adjustable from 0 to 10dB. Exercise caution when using this control. Increase the level in small amounts until distortion is noticed, then back off a little.

Some models include a bass remote. You should avoid adjusting the bass remote while operating the vehicle.