User manual BOSS BLX10DVC

[. . . ] There are no user-serviceable parts within the unit. Protection Circuitry The built-in amplifier incorporates special protection circuitry which will disable the amplifier if any of the following should occur: · Input overload · Short circuit · Extremely high temperatures If any of these conditions is detected, the amplifier will go into a selfpreservation mode, and the PROTECT LED on the control panel will glow in RED color. If you observe that the POWER STATUS LED IS RED, please check the system carefully to determine what has caused the protection circuit to engage. To reset the amplified subwoofer when it is in PROTECT mode, turn the power off to the system (usually by turning off the head unit or other signal source which feeds the amplifier) and then turn it on again. If the internal amplifier has shut down due to thermal overload, you should first allow it to cool down before restarting. [. . . ] If the shut down was due to either an input overload or a short circuit, be sure to correct these conditions before attempting to power up the subwoofer again. BLX10DVC Amplified Subwoofer User's Manual - page 3 Installation precautions Before you drill or cut any holes, investigate your car's layout very carefully. Take special care when you work near the gas tank, fuel lines, hydraulic lines and electrical wiring. Attach all audio system components securely within the amplifier to prevent damage, especially in an accident. Do not mount this product so that wire connections are unprotected, in a pinched condition, in contact with any metal surfaces in your vehicle, or likely to be damaged by nearby objects. Before making or breaking power connections in your system, disconnect the vehicle battery. Confirm that your head unit or other equipment is turned off while connecting the input jacks and speaker terminals. If you need to replace the power fuse, replace it only with a fuse identical to that supplied with the product. Using a fuse of a different type or rating may result in damage to your audio system or your amplifier which is not covered by the manufacturer's warranty. Fuses Power fuses protect both the amplifier and the electrical system of your car from fault conditions. If you must replace a fuse in your BLX10DVC powered subwoofer, use a fuse of exactly the same type and rating. Do not adjust this input level to maximum unless your input level requires it. Ignoring these instructions will result in an input overload to the amplifier in the subwoofer, and excessive audio distortion. It can also cause the protection circuit to engage. BLX10DVC Amplified Subwoofer User's Manual - page 6 Front panel controls and features 1 REMOTE LEVEL CONTROL INPUT GAIN SUBSONIC FILTER BASS BOOST LOW PASS FILTER PHASE SHIFT POWER STATUS GREEN = ON RED = PROTECTION MIN MAX 20Hz 50Hz 0 +12dB 50Hz 150Hz 0 180º BASS SUBWOO FER AMPL IFIED 2 3 4 5 6 7 1 REMOTE LEVEL CONTROL PORT Attach the included remote level control to control the volume level of the subwoofer independently. 5 LOW PASS FILTER This control permits you define the frequency range you want the subwoofer amplifier to receive. If the rest of your system is weak on the mids, you may wish to set this control relatively high. If the midrange is well covered by the rest of your system, you will probably want the subwoofer to only receive lower frequency signal. 2 INPUT GAIN CONTROL After you have installed your system, turn this control to minimum Turn the head unit on (and the subwoofer will turn on via the remote connection). Slowly turn up the subwoofer input gain control until you hear a small amount of distortion. Leave the control at this setting. 6 PHASE SHIFT Use this switch to help compensate for time alignment problems in the system. Such problems usually result from having the subwoofer at a different distance from the listener than the other speakers in the system. 3 SUBSONIC FILTER Use this control to filter out low frequency noise and rumble. 7 POWER STATUS LED This bi-color LED glows green when power is on and no problems are present. If one of the protection circuits comes on, it will change to red. 4 BASS BOOST The bass boost feature will increase the sound level in the bass frequencies. BLX10DVC Amplified Subwoofer User's Manual - page 7 Rear panel controls and features 1 BASS SUBWO OFE R AMPLI FIE D POWER FUSES INPUTS LINE LEVEL 2 3 4 L R HIGH LEVEL GROUND REMOTE +12V 5 1 POWER TERMINALS 2 FUSE The fuse in the upper socket is the fuse which provides protection for the circuitry. [. . . ] If one of the protection circuits comes on, it will change to red. 4 BASS BOOST The bass boost feature will increase the sound level in the bass frequencies. BLX10DVC Amplified Subwoofer User's Manual - page 7 Rear panel controls and features 1 BASS SUBWO OFE R AMPLI FIE D POWER FUSES INPUTS LINE LEVEL 2 3 4 L R HIGH LEVEL GROUND REMOTE +12V 5 1 POWER TERMINALS 2 FUSE The fuse in the upper socket is the fuse which provides protection for the circuitry. Do not use a fuse with a different value and NEVER replace the fuse with a wire or coin. 4 HIGH LEVEL (speaker level) INPUTS If your head unit does not have RCA outputs, you can use the speaker outputs for the audio source for the BLX10DVC. Use the supplied cable and wire harness and connect the outputs properly as shown in the connection diagram in this manual. 5 SPARE FUSE The lower fuse socket is a storage location for a spare fuse. If the upper fuse blows, you may replace it with this fuse. 3 LOW LEVEL RCA INPUTS Low level inputs are the recommended way to introduce the audio signal to the subwoofer if RCA outputs are present on your head unit or other signal source (such as a sound processor). BLX10DVC Amplified Subwoofer User's Manual - page 8 Low Level Input Wiring Low-level (RCA) input wiring is preferred for best audio performance. [. . . ]