User manual HARMAN KARDON HK250

[. . . ] While sophisticated systems are hard at work within the HK250 to make all of this happen, hookup and operation are simple. Color-keyed connections and a comprehensive remote control make the HK250 easy to use. To obtain maximum enjoyment from your new receiver, we urge you to take a few minutes to read through this manual. This will ensure that connections to speakers, source playback units and other external devices are made properly. [. . . ] Connect the main speakers to the Speaker 1 terminals G. Connect a second set of speakers, or speakers that are in a second room location, to the Speaker 2 terminals H. When an optional, powered subwoofer is used, connect the outputs of the left and right Subwoofer Out jacks F to the line-level inputs of the subwoofer. When the subwoofer's amplifier has stereo inputs, run interconnects from both jacks. When the subwoofer has a mono input only, use the bottom output jack for the connection. When a separate passive subwoofer is used, these connections will be made to the optional amplifier that powers the subwoofer. If the (passive) subwoofer or Sub/Sat system has only speaker-level inputs and outputs, connect the Speaker 1 terminals G to the speaker-level inputs on the subwoofer, and then connect the speaker-level outputs on the subwoofer to your main left and right speakers, following the instructions provided with the subwoofer. 7. Connect an FM antenna to the FM Antenna connection 1. The FM antenna may be an external roof antenna, an inside powered or wire lead antenna or a connection from a cable system. Note that if the antenna or connection uses 300-ohm twin-lead cable, you must use the 300-ohm-to-75-ohm adapter supplied with the unit to make the connection. Speaker Connections To ensure that all the audio signals are carried to your speakers without loss of clarity or resolution, we suggest that you use high-quality speaker cable. AC Power Connections This unit is equipped with an accessory AC outlet. It may be used to power accessory devices, but it should not be used with high-current draw equipment such as power amplifiers. The total power draw may not exceed 100W at this outlet. This Switched AC Outlet I will receive power only when the unit is on. This is recommended for devices that have no power switch, or those with a mechanical power switch that may be left in the "ON" position. NOTE: Devices with electronic power switches may only go into a Standby mode when plugged in here. Power to this outlet is removed when the unit is in the Standby mode, or when the Main Power Switch 1 is in the "OFF" position. Speaker Placement For optimal listening enjoyment, and for soundfield reproduction that best re-creates the original recording, it is good practice to place the speakers so that they form a triangle with the speakers at the front of the room, and the preferred listening spot at the third point of the triangle. The distance between each speaker and the listener should be identical. For example, if the speakers are 2, 5 meters from one another, each of the speakers should optimally be placed so that they are also 2, 5 meters from the listener. It is also desirable to place speakers so that their tweeters, or highfrequency drivers, are aimed at ear height when you are seated in the listening position. Left Front Speaker Right Front Speaker A good starting point for speaker placement is to make the distance between the two speakers and the distance between either speaker and the listener identical. To optimize the sound field, or to suit your listening room environment, you may find that some experimentation is required to find the correct location. [. . . ] If the system still malfunctions, a system reset may clear the problem. To reset the system, first turn the HK250 off by pressing the Main Power Switch 1 and then releasing it so that it extends out beyond the front panel and the word "OFF" is visible in red at the top of the switch. Next, press and hold the T-Mon and CD Input Selector buttons 9# on the front panel ONLY. While holding these buttons in, press the Main Power Switch 1 in until it latches, so that the button is flush with the front panel. [. . . ]