Harman Kardon AVR45 Owner's Manual

Also see for AVR45: Owner's manual Service manual

Contents

System Configuration1911. When all speaker selections havebeen made, press the Set button i˜ to return to normal operation.Output Level AdjustmentOutput level adjustment is a key part ofthe configuration process for any sur-round sound product. It is particularlyimportant for a Dolby Digital receiversuch as the AVR45, as correct outputs willensure that you hear sound tracks in theirproper place with the proper intensity.IMPORTANT NOTE: Many listenersare often confused about the operationof the surround channels. While someassume that sound should always becoming from each speaker, most of thetime there will be little or no sound inthe surround channels. This is becausethey are only used when a movie directoror sound mixer specifically places soundthere to create ambiance, an effect or tocontinue action from the front of theroom to the rear. When the output levelsare properly set it is normal for rear/surround speakers to operate onlyoccasionally. Artificially increasing thevolume to the rear speakers may destroythe illusion of an enveloping sound fieldthat duplicates the way you hear soundin a movie theater or concert hall.Before beginning the adjustment processmake certain that all speaker connectionshave been properly made. The systemvolume should be set to the level thatyou will use during a typical listeningsession. Finally, make certain that theBalance Control 7 is set to the center“12 o’clock” position.To adjust and calibrate the output levels,follow these steps. For accurate calibration,it is a good idea to make these adjustmentsfrom the location in your room that isyour favorite listening position:1. Put the AVR45 in the Dolby Pro Logicmode by pressing the Dolby ProLogic Selector Ó on the frontpanel or by pressing the SurroundMode Selector y on the remote,followed by the ⁄ / ¤ buttons guntil PRO LOGIC appears in theMain Information Display S andthe PRO LOGIC indicator F lights.2. Press the Test Tone button e Òon the remote or front panel. Thewords T -T FL 0dB will appearin the Main Information DisplayS , and the letters FL will flash onceeach second.3. At this point, the test noise will beginto circulate among all the speakers ina clockwise rotation.NOTE: This is a good time to verifythat the speakers have been properlyconnected. As the test noise circulates,listen to make certain that the soundcomes from the speaker positionshown in the Main InformationDisplay. If the sound from a speakerlocation does NOT match the positionindicated in the display, turn theAVR45 off and check the speakerwiring to make certain that eachspeaker is connected to the correctoutput terminal.4. After checking for speaker placement,let the test noise circulate again, andlisten to see which channels soundlouder than the others. Using thefront left (FL in the display) speakeras a reference, press the ⁄ / ¤ buttonsg on the remote or the Selectorbuttons ¸ on the front panel oneach channel to begin to bring themto the same level. Note that when oneof the buttons is pushed, the test noisecirculation will pause on the channelbeing adjusted to give you time tomake the adjustment. When yourelease the button, the circulationwill resume.5. Continue to adjust the individualspeakers until they all have the samevolume. Note that adjustmentsshould be made with the ⁄ / ¤buttons g on the remote or theSelector buttons ¸ on the frontpanel only, NOT the main volumecontrols. Then press the Set buttoni ˜ to memorize the change. Ifyou are using a sound pressure (SPL)meter for precise level adjustment, setthe volume so that the meter reads75dB, C-Weighting Slow.NOTE: The subwoofer output level is notadjustable using the test tone. To changethe subwoofer level, follow the steps forOutput Level Trim Adjustment on page27.6. When you have adjusted the outputsso that all channels have the samelevel, press the Test Tone buttone Ò on the remote or front panelto complete the adjustment.