44 44ADVANCED FUNCTIONSThe Speaker/Channel Indicators on the front panel of the receiver (seeFigure 64) display the speaker size settings. For each speaker configurednumerically, a single box will appear in its position. For each speakerconfigured as LARGE, a double box will appear. If a speaker is config-ured as OFF, no box will appear. The subwoofer is indicated by a singlebox, or no box if no subwoofer has been configured. The letters insidethe boxes appear when a digital signal is being received that has thatchannel discretely encoded. The letters flash when the signal is notpresent, such as when a DVD is paused. A line connects the SBL andSBR boxes when a 6.1-channel signal is detected, indicating that thesame signal is playing through both speakers.Adjust Speaker Distance MenuPlacing the speakers at different distances from the listening positionscan muddy the sound, as sounds are heard earlier or later than desired.Even if all of your speakers are placed the same distance from thelistening position, do not skip this menu.On the Manual Speaker Setup menu, move the cursor to the Distanceline and press the OK Button to display the Adjust Speaker Distancemenu. See Figure 69.Figure 69 – Adjust Speaker Distance MenuEnter the distance from each speaker to the listening position, asmeasured in Step Two – Measure Speaker Distances and recordedin Table A4 in the appendix.The default unit of measurement is feet. To change the unit to meters,return to the main AVR menu. Select the System Settings menu, thenscroll down to the General AVR Settings section and select the Unitof Measure line. Press the OK Button to change the setting.Select a speaker, then use the ‹ / › Buttons to change the meas-urement. The values vary between 0 and 30 feet, with a default of10 feet for all speakers.NOTE: If the surround back channels are assigned to the multi-zone system, you will not be able to adjust their delay settings.Step Four – Setting Channel Output LevelsManuallyFor a conventional 2-channel receiver, the balance control affects thestereo imaging by adjusting the relative loudness of the left and rightchannels.With up to seven main channels, plus a subwoofer, imaging becomesboth more critical and more complex. The goal is to ensure that eachchannel is heard at the listening position with equal loudness.EzSet/EQ calibration can handle this critical task for you, simply andautomatically. However, the AVR’s Adjust Speaker Levels menu allowsyou to calibrate the levels manually, either using the system’s test toneor while playing source material.1. Make sure all speakers have been placed and connected correctly.2. Adjust the number of speakers, crossover, distance and sub modefor each speaker in your system as described in Step Three.3. Measure the channel levels in one of these ways, and adjust thechannel levels using the Adjust Speaker Levels menu:a) Preferably, use a handheld SPL meter set to the C-Weighting, Slowscale. Adjust each channel so that the meter reads 75dB.b) By ear. Adjust the levels so that all channels sound equally loud.c) If you are using a handheld SPL meter with source material, suchas a test disc or an audio selection, play it and adjust the AVR’smaster volume control until the meter measures 75dB.Press the AVR Settings Button to display the menu system, and thennavigate to the Speaker Setup line. Press the OK Button to displaythe Speaker Setup menu. Select Manual Speaker Setup, press theOK Button, and then navigate to the Level Adjust line. Press theOK Button to display the Adjust Speaker Levels menu. See Figure 70.Figure 70 – Adjust Speaker Levels MenuAll of the speaker channels will appear with their current level settings.Reset Levels: To reset all levels to their factory defaults of 0dB, scrolldown to this line and press the OK Button.To set your levels using the AVR 3550HD’s internal test tone, adjustthe TEST TONE line as follows:Test Tone: Determines whether the test tone is active. To begin, pressthe OK Button repeatedly to select the OFF, AUTO or MANUAL setting.Manually moving the cursor out of the channel listings area of thescreen, automatically stops the test tone.When this setting reads AUTO, the test tone will automatically circulateto all channels, pausing for a few moments at each channel and thenmoving to the next channel several seconds later, as indicated by thehighlight bar. Adjust the level for any channel when the test tone is