JL Audio XD 400/4v2 Owner'S Manual Download Page 18

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| JL Audio - XD400/4v2 Owner’s Manual

INSTALLATION NOTES:

Use this diagram to document your amplifier’s switch and control positions.

4 Channel Amplifier

Rem. | Offset | Signal

Input Voltage

Low | High

Turn-On Mode

Summary of Contents for XD 400/4v2

Page 1: ...allation equipment to ensure optimum performance from this product Should you decide to install the amplifier yourself please take the time to read this manual thoroughly to familiarize yourself with...

Page 2: ...space provided below The serial number can be found on the bottom panel of the amplifier and on the amplifier packaging Serial Number INSTALLATION APPLICATIONS This amplifier is designed for operatio...

Page 3: ...ventilated environment and in a manner which does not interfere with your vehicle s safety equipment air bags seat belt systems ABS brake systems etc You should also take the time to securely mount th...

Page 4: ...eaker systems to the amplifier mounting location 6 Find a good solid metal grounding point close to the amplifier and connect the negative power wire to it using appropriate hardware use of the JL Aud...

Page 5: ...the set screw firmly taking care not to strip the head of the screw The ground connection should be made using 8 or 4 AWG wire and should be kept as short as possible while accessing a solid piece of...

Page 6: ...ventional 12 V turn on leads Depending on the characteristics of the audio signal one of the following methods may work better than the other We recommend trying DC Offset Sensing first as it does not...

Page 7: ...ts an input sensitivity range between 800mV and 8V This is useful for certain high output preamp level signals as well as speaker level output from source units and small amplifiers To use speaker lev...

Page 8: ...audio system Input Mode 2 Ch 4 Ch All 3 4 1 2 Sum Preouts From Remote Level Mode nal Input Voltage Low High e 1 Filter Mode Controls The XD400 4v2 employs 12dB per octave filters for each pair of cha...

Page 9: ...y added to the system This pass through preamp output can be configured two different ways using the switch labeled Preouts From 1 1 2 the preamp output delivers the same signal that is connected to t...

Page 10: ...put of two amplifier channels to drive a single load When bridged each channel produces signals of equal magnitude but opposite polarity The combined output of the two channels provides twice the outp...

Page 11: ...ticking or thumping noise in the output Over current conditions can be caused by a speaker impedance lower than the optimum load impedance range for the amplifier or a short circuit in the speaker wi...

Page 12: ...D400 4v2 s Input Sens settings and will not be user adjustable from the front of the vehicle B Fade Subwoofer Level vs HF Level Req uired a source unit or processor with two pairs of stereo outputs In...

Page 13: ...pair of source unit outputs is connected to the subwoofer amplifier inputs Res ult with this option the user has the ability to fade the level of the subwoofer amplifier s input relative to the HF ch...

Page 14: ...input sensitivity adjustment according to the nominal impedance of the speaker system connected to the amplifier outputs 6 Verify that you have disconnected the speakers before proceeding Play a track...

Page 15: ...tio 104 dB referred to rated power A weighted 20 Hz 20 kHz noise bandwidth 84 dB referred to 1W A weighted 20 Hz 20 kHz noise bandwidth Frequency Response 12 Hz 22 kHz 0 1dB Damping Factor 150 4 ohms...

Page 16: ...ay is required To test for this problem jump the 12VDC wire to the Remote terminal to see if the amplifier turns on I get a repetitive ticking or popping sound coming out of the speaker s Check the sp...

Page 17: ...while an appropriate test tone is played through the source unit disconnect the input cables from the amplifier prior to this test The frequency used should be in the range that is to be amplified by...

Page 18: ...JL Audio XD400 4v2 Owner s Manual INSTALLATION NOTES Use this diagram to document your amplifier s switch and control positions 4 Channel Amplifier Rem Offset Signal Input Voltage Low High Turn On Mo...

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Page 20: ...etail and no warranties whether express or implied shall apply to this product thereafter Some states do not allow limitations on implied warranties therefore these exclusions may not apply to you Thi...