User manual XTANT X2.1204 DATASHEET

[. . . ] For added safety, an outboard 50 Amp service fuse may also be added close to the amplifier. Xtant recommends that all wires be terminated with "spade" or "ring " style connectors. Care should be taken not to strip the Power, Ground, Remote Turn-On lead and Speaker Wires over or near the exposed circuit board. If a stray wire falls on the board and power is applied to the amplifier, failure may occur! [. . . ] With the amp playing, simply move the Remote Turn-On jumper to Amp-Off position, make your adjustments and move the jumper to the Enable position to turn the amp back on ADDING ACCESSORY MODULES OUTPUT GAIN The output gain for each channel is controlled by board-mounted potentiometers. These pots independently adjust the output level of each channel. Xtant suggests setting this level in conjunction with any equalization or signal processing equipment in the system. Output gain is adjusted independently from the Input Gain Select. If your customer desires max output, don't be afraid to adjust the Input Gain Select to +20 and turn the output gain pot wide open (full clockwise rotation). If you should encounter distortion (input clip), turn the amp off via the Remote TurnOn jumper and reset your Input Gain Select to +10. Place the Remote Turn-On jumper to the "enable" position and audition the system. Repeat this process if distortion (input clip) continues. The object is to pass as much input signal as possible without over-loading the input stage. Finally, adjust the output pot for desired "max" volume setting on the head unit's volume control. xtant technologies installer's reference THIS DOCUMENT HAS BEEN CRAFTED TO MAKE INSTALLATION, SYSTEM EXPANSION AND TROUBLE-SHOOTING, A QUICK AND EASY PROCESS. THE INFORMATION PROVIDED, SHOULD BE REVIEWED PRIOR TO INSTALLING AND/OR ADJUSTING THE 302a. CONNECTING THE HEAD UNIT The 302a is a full-range, 300 Watt stereo amplifier. Check Turn-On lead Check integrity of RCA cables Check connection at amp and head Unit. Check integrity of speaker connection at amp and speakers. Voltage @ Turn-On lead needs to be 8 Volt minimum Check Port Jumpers, two jumpers per port are required. Check jumper alignment, jumper must be seated properly. Red LED on. No Sound. No Input Signal Red LED on. No Sound. Loose Speaker Wires Lack of Turn-On Voltage Missing Accessory Port Jumper RESISTOR MODULES +20 +10 0 ­10 ­20 dB dB dB dB dB = = = = = 10 3 1 . 3 . 1 (ie: A head unit with 300mV output with input jumper @ +20dB = 3 Volts input) The input stage may be over-loaded by a high-level signal if the input gain is set too high. If this should occur, simply reduce the input sensitivity setting. USING THE BALANCED LINE CIRCUITRY The Balanced Line circuitry provides two unique features which add versatility to your head unit selection. First, the Balanced Line circuitry increases the input sensitivity to 17 Volts when receiving a signal from a balanced source and, secondly, isolates signal ground. These two features allow connection with OEM factory head units and high-powered (BTL) head units. The Balanced Line circuitry will also accept a speaker level input signal. If the head unit has a Floating Ground output, you must "enable" the Balanced Line circuitry prior to connecting the head unit. [. . . ] TO INCREASE THE GAIN, MOVE THE JUMPER TO THE +20 dB POSITION. TO DECREASE INPUT GAIN, PLACE JUMPER IN THE 0, -10, OR -20 dB POSITION. YOUR BENCH, ADJUST CROSSOVER MODE JUMPERS AND CHANGE CROSSOVER FREQUENCY SIP'S . REMOVE PORT JUMPERS AND INSTALL MODULE(S) ­ OBSERVE "KEY" ON CONNECTOR FOR PROPER FIT. ADJUST PQM-1 OR LFQ 45 EQ MODULES AFTER AMP IS MOUNTED. y AMPLIFIER GAIN CONTROLS: -20 -10 0 +10 +20 TURN CLOCKWISE TO INCREASE GAIN CHAN 2 LFQ-45, CM 12HP & CM 12LP ONLY ORANGE LED THERMAL PROTECT YELLOW LED LOW IMPEDANCE RED LED POWER ON TERMINALS: THE X2. 1204 SPEAKER OUTPUT OF SPEAKER TERMINALS. IS 2-CHANNEL AMPLIFIER WITH TWO SETS THE "PASSIVE" TERMINALS ARE NOT FUNCTIONAL UNLESS AN RM MODULE IS INSTALLED. INSTALL ACCESSORY MODULES. [. . . ]