System Configuration
Manual Setup
The AVR 355/AVR 255 is flexibly designed to be used with almost any loudspeakers available. The flexibility arises from the AVR 355/AVR 255’s capability tobe configured to match the charac- teristics of your particular speakers, and to com- pensate for the acoustic characteristics of your room.
EzSet/EQ automatically detects the capabilities of each speaker,and optimizes the AVR 355/
AVR 255’s performance in your system. However, if forsome reason you are unable to run EzSet/EQ, e.g., you have misplaced the micro- phone, or if you wish to make further adjust- ments to the settings made by EzSet/EQ, you may use the Manual Setup on-screen menus as described in this section.
Before beginning manual setup place your loud- speakers in their correct locations within the room (see Speaker Placement section), and con- nect them to the AVR. You will need the specifi- cations for each of your speakers, which may usually be found in the owner’s guide for the speakers or on the manufacturer’s Web site. If necessary, contact the manufacturer to obtain the frequency range specification. Although the output-level setting portion of manual setup may be performed “by ear,”we recommend that you purchase an SPL (sound-pressure level) meter at a local electronics store.
We suggest that you record your configuration settings in the appropriate places in Tables A3 through A7 in the appendix in case you need to reenter them after a system reset, or if the AVR’s Master Power Switch is turned off or the unit is unplugged for more than four weeks.
Step One – Determine
Speaker Crossover
Without using EzSet/EQ, the AVR 355/ AVR 255 can’t detect how many speakers you’ve connect- ed to it; nor can it determine their capabilities.
For this part of the system setup consult the speaker’s technical specifications.
Locate the frequency response, which is usually given as a range, e.g.,100Hz – 20kHz (±3dB). This specification tells you whether the speaker is able to play sounds that are very high- or low- pitched, represented by the high and low fre- quencies. We are concerned with the lowest fre- quency that each of your main speakers is capa- ble of playing, which is 100Hz in this example. Use the Table A5 worksheet in the appendix to note this number as the crossover for that speak- er (not the same as the crossover frequency list- ed in the speaker’s specifications).
The subwoofer’s frequency response will include only the very lowest frequencies, since the sub- woofer is designed to play only bass materials.
A typical frequency response for a subwoofer is 25Hz – 150Hz. In this case, the higher number should be noted in the worksheet.
This information is required to program the receiver’s bass management, which determines which speakers the receiver will use to playback the low-frequency (bass) portion of the source program.
If you send the lowest notes to small satellite speakers, you won’t hear these notes very well, and you may even damage the speaker by exceeding its capabilities. If you send the highest notes to the special purpose subwoofer,you may not hear them at all.
With proper bass management, the AVR 355/ AVR 255 divides the source signal at a crossover point. All information above the crossover point is played through the satellite speaker (front left/right, center,surround left/right, or surround back left/right), and all information below the crossover point is played through the subwoofer. This enables each loudspeaker in your system to perform at its best, delivering an enjoyable sound experience.
Step Two – Measure
Speaker Distances
Ideally, all of your speakers were placed in a cir- cle, each at the same distance from the listening position. However,your room may not be ideal, and you may have had to place some speakers a little further away than others. This could affect the overall sound of the receiver,as sounds that are supposed to arrive simultaneously from dif- ferent speakers blur due to different arrival times.
The AVR 355/AVR 255 has a delay adjustment that enables the receiver to compensate for real- world speaker placements.
Before you begin making adjustments, measure the distance from each speaker to the listening position, and note it in the TableA3 worksheet in the appendix. Even if all of your speakers are the same distance from the listening position, you should enter your speaker distances as described in Step Three.
Step Three – Manual Setup Menu
Now you are ready to program these adjust- ments into the receiver. It’s best to sit in the usual listening position and make the room as quiet as possible.
With the receiver and video display turned on, press the AVR Button on the remote to display the menu system. Use the LButton to move the cursor to the Speaker Setup line, and press the OK Button to display the Speaker Setup menu. See Figure 4.
If you have run EzSet/EQ, those results were saved. To tweak the EzSet/EQ results, or to con- figure the AVR from scratch, select Manual Setup. The screen shown in Figure 9 will appear.
Figure 9 – Manual Speaker Setup Menu
NOTE: All of the speaker setup submenus include the Exit and Back options as shown at the bottom of Figure 9. To return to a previous menu without making any changes, press Exit. To save the current settings, select the Back option.
If you previously saved EzSet/EQ results in this setup position and you wish to reconfigure the speakers from scratch, select the Reset option.
For best results, we recommend configuring the speakers in this order,although it may differ from the order in which the submenus appear in the Manual Speaker Setup menu: Number of Speakers, Crossover(Size), Sub Mode, Distance and Level Adjust.
