User manual SONY XES-M50

[. . . ] FET Input Circuit Differential amplifier circuit with positive/negative symmetry due to the use of dual FET. Dual FET with tips of all characteristics contained in one package are used, and allowances have been made for thermal coupling. In addition, using the high input impedance of the FET gates, a DC input circuit is attained that does not use DC coupling capacitors. High Quality Parts Used Parts that combine reliability with high sound quality are used in the system including newly developed aluminum power capacitors, power transformers in which allowances have been made for vibration, a planed terminal board, RCA pin jacks, a gold-plated oxygen free copper substrate, and carbon resistant materials, etc. [. . . ] Make the power supply lead and speaker connection as illustrated below. In order not to damage the screws, the tightening torque should be no more than 1 Nm. For safety reasons it is recommended that you use the crimp type terminals provided for connecting to the power supply lead. XES-Z50 If you have the factory original or some other car audio that does not have a remote output, connect the remote input terminal (REMOTE) of this unit to the accessory power supply. To improve sound quality, the power supply of the XES-Z50 should not pass through the distributor but should be wired separately. Connect the power supply lead last after all the other connections have been made. â· Be sure to connect the ground lead of the unit securely to a metal point on the car. A loose connection may result in damage. â· Connect the remote output lead of the car audio to the remote input terminal (REMOTE) of this unit. If there is no amplifier remote output in the car audio, connect the remote input terminal to the accessory power supply of the car. When using a direct power supply from the car battery, refer to the table on page 21 to select the appropriate cord. The wiring of the cables of the speakers that are used should be kept short because the XES-F50 and XESL50 speakers of the XES Series are 1 ohm devices. If the cables are too long, the system will not be able to perform at its full potential. Note Make sure that the same signals are input to the INPUT RIGHT/LEFT connectors on the respective amplifier. Relationship between crossover frequencies, the inductance of the coil, and the capacitance of the capacitors when a dual connection has been established (6 dB/oct. When combined with a multiway loudspeaker system using a passive crossover network, make sure that the impedance of the entire system is at or higher than the matching impedance level. â· When a 12dB/oct passive crossover network is established in which the capacitors and coils are arranged in a series, always connect the speakers. If disconnected from either the ] or } terminal of a speaker, the impedance in the vicinity of the resonance frequency decreases and a condition approaching short circuiting occurs. This may result in abnormal amounts of heat being generated or in damage to the system. * See the table in "Dual Mode Connections" (preceding page) for information on crossover frequencies and the inductance of L (a coil which is not supplied). [. . . ] The power source lead is too close to an RCA pin lead. N Keep the lead away from the RCA pin leads. RCA pin leads are too close to a wiring harness of the vehicle. n Keep the leads away from the wiring harness. [. . . ]