Harman Kardon Harman/kardon AVR 154 Owner's Manual

Also see for AVR 154: Brochure & specs Quick start guide Service manual

Harman Kardon Harman/kardon AVR 154 Owner's Manual Manual pdf 29 page image

With proper bass management, the AVR 154 divides the sourcesignal at a crossover point. All information above the crossover point isplayed through the satellite speaker (front left/right, center or surroundleft/right), and all information below the crossover point is playedthrough the subwoofer. This enables each loudspeaker in your systemto perform at its best, delivering an enjoyable sound experience.Find the speaker’s frequency response, which is usually given as a range,e.g., 100Hz – 20kHz (±3dB). This specification tells you whether thespeaker is able to play sounds that are very high- or low-pitched, repre-sented by the high and low frequencies. We are concerned with thelowest frequency that each of your main speakers is capable of playing,which is 100Hz in this example. Use the Table A6 worksheet in theAppendix to note this number as the crossover for that speaker (not thesame as the crossover frequency listed in the speaker’s specifications).The subwoofer’s frequency response includes only the lowest frequencies,since the subwoofer is only designed to play bass materials. A typicalfrequency response for a subwoofer is 25Hz – 150Hz. In this case, thehigher number is most important and should be noted in the worksheet.Step Two – Measure Speaker DistancesIdeally, all of your speakers were placed in a circle, each at the samedistance from the listening position. However, your room may not beideal, and you may have had to place some speakers a little furtheraway than others. This could affect the overall sound of the receiver,as sounds that are supposed to arrive simultaneously from differentspeakers blur, due to different arrival times.The AVR 154 has a delay adjustment that enables the receiver tocompensate for real-world speaker placements.Before making adjustments, measure the distance from each speakerto the listening position, and note it in the Table A4 worksheet in theAppendix. Even if all speakers are the same distance from the listeningposition, enter the speaker distances into the Delay Adjust menu, asdescribed in Step Three.Step Three – Manual Setup MenuNow you are ready to program these adjustments into the receiver. Sitin the usual listening position and make the room as quiet as possible.With the receiver and video display turned on, press the OSD Button onthe remote (see Figure 40). Use the ¤ Button on the remote to movethe cursor to the MANUAL SETUP line, and press the OK Button todisplay the Manual Setup menu. See Figure 42.Figure 42 – Manual Setup Menu ScreenThe Manual Setup menu is the gateway to four submenus: SpeakerSize, Speaker X-Over, Delay Adjust and Channel Adjust.Speaker Size MenuPress the OK Button to display the Speaker Size submenu.See Figure 43.Figure 43 – Speaker Size Menu ScreenThe Speaker Size menu lists each of the speaker groups. You will beprogramming the correct setting for each group, indicating how manyspeakers are in your system and what their capabilities are, based onthe information you obtained in Step One – Determine Speaker Size.Each of the main speaker groups can be set to one of three settings:LARGE, SMALL or NONE. These settings don’t refer to the physical sizeof the speaker, but rather to the size of its frequency range.If the lower number of the frequency response for your speakers isless than 100Hz, choose the LARGE setting. If this number is 100Hzor greater, choose the SMALL setting. If you don’t have a speakerconnected to that position, choose NONE. Record the speaker sizesettings in Table A6 in the Appendix.The system requires you to use both speakers in a pair, i.e., the frontleft and right speakers and the surround speakers. However, you canconnect just the front speakers, or both front and surround speakerswithout a center, or the front left/right and center speakers without anysurrounds.29INITIAL SETUP