Sunfire IV Side-Axis Speakers, Surround speakers, Surround Back Speakers, Subwoofer Location

APPENDIX

....Speaker Placement continued

In some systems, two center speak- ers are used; one on either side of the TV. As they are in mono, the result

is a sound image that is positioned exactly at the screen center.

Side-Axis Speakers

The TGIV has two side-axis chan- nels which are matrixed from the left and right front channels, so they are available in stereo as well as surround modes.

Use the OSD SPEAKER SIZE menu to turn the SIDE-AXIS channels ON or OFF (see page 38).

DShows the typical placement of the side-axis speakers. You can also angle them in towards your listening position. Place the speakers along the side walls, close to the fronts.

Surround speakers

Place each surround speaker to be an equal distance away from your central listening position and keep them at least one or two feet above ear level.

AThe diagram shows the use of dipole surround speakers. These are usually positioned to the side of your listening position. They radiate forwards and backwards and have a quiet null zone which should point towards the listener. The overall effect is that you cannot hear the direct sound from the surround speakers, just the average soundfi eld.

Conventional surround speakers can be placed behind the listener, on the rear walls or the side walls. Adjust the angle so they do not point directly at the listener but cause refl ections from the sidewalls or the ceiling. This will give the effect of broadening the rear soundstage so that you cannot distinguish the sound as coming from a small box on the wall but from a larger area behind you.

Surround Back Speakers

The TGIV has two extra outputs for surround back speakers. These create a wonderful sense of realism in surround effects during playback of Dolby Digital EX, Dolby Pro Logic IIx, and DTS ES.

The TGIV can be confi gured for one or two surround back speakers. Ide- ally, all the surround speakers should be of the same make and model, and

fitted at similar heights to produce a smooth continuous soundfi eld.

If you are connecting one surround back speaker, connect its amplifier input to the TGIV left surround back output. Place the speaker behind your listening position.

Subwoofer Location

The TGIV has identical output con- nections for up to three subwoofers, in addition to a fourth, balanced sub out.

The best location for a single

subwoofer can be found by playing some heavy bass and proceeding as follows:

1.Place the subwoofer right on the seat of your couch or listening easy chair.

2.You can then either run the calibration (noise) signal through it, or simply plug the analog outputs of a CD player directly into your subwoofer’s low-level inputs. Turn down the subwoofer's volume level before turning on the CD, then play some of your favorite mu- sic samples with heavy bass.

3.Walk around the room, stand- ing in all the positions where you might be able to place the subwoofer. This is usually somewhere close to the cor- ners of the room. Try locations fairly close to the front speak- ers.

4.Notice where in the room the bass output from the subwoofer sounds the loudest. Shut things down and install the subwoofer there.

5.This is the best position for the subwoofer. The bass will sound the best when you are sitting in your normal listening position.

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User's Manual