Pioneer VSX-LX51 manual X-Curve, THX Audio Setting, 07The System Setup menu

07The System Setup menu

X-Curve

Most soundtracks mixed for cinema sound too bright when played back in large rooms. The X-Curve setting acts as a kind of re-equalization for home theater listening, and restores proper tonal balance of movie

soundtracks.1

1 Select ‘X-Curve’ from the Manual SP Setup menu.

5.Manual SP

Setup

5d.X-Curve

a . Speaker

Setting

X-Curve

-2.0dB/oct

b . Channel

Level

c . Speaker

Distance

d . X-Curve

e . THX Audio Setting

63

125

250

500

1k

2k

4k

8k

16k

:Return

:Finish

2 Choose the X-Curve setting you want.

Use / to adjust the setting. The X-Curve is expressed as a downwards slope in decibels per octave, starting at 2 kHz. The sound becomes less bright as the slope increases (to a maximum of –3.0dB/oct). Use the following guidelines to set the X-Curve according to your room size:

Room size (m2)	≤36	≤48	≤60	≤72	≤300	≤1000
X-Curve (dB/oct)	–0.5	–1	–1.5	–2	–2.5	–3

•If you select OFF, the frequency curve will be flat and the X-Curve has no effect.

3 Select ‘Return’, then press ENTER to finish.

THX Audio Setting

When the THX Loudness Plus function is used, sound can be played with the full surround effect even when the volume is low.

For the most effective results when using the THX SELECT2 Cinema, THX SELECT2 Music and THX SELECT2 Games listening modes (see Using the Home THX modes on page 30) with the Advanced Speaker Array (ASA) system (see About THX on page 88), it is required that you make the setting. See Placing the speakers on

page 21 for more on THX speaker placement.2

1Select ‘THX Audio Setting’ from the Manual SP Setup menu.

5.Manual SP Setup

a . Speaker Setting

b . Channel Level

c . Speaker Distance

d . X-Curve

e . THX Audio Setting

:Return

2Select either ON or OFF for THX Loudness Plus setting.

5e.THX Audio Setting

Loudness Plus ON

SB SP Position

0 - 0.3m

:Finish

3Specify the distance of your surround back speakers from each other.

5e.THX Audio Setting

Loudness Plus		[ ON ]
SB SP Position
	0 - 0.3m

:Finish

•0 – 0.3m – Surround speakers within 30 cm apart (best for THX surround sound).

•> 0.3 – 1.2m – Surround speakers between 30 cm and 1.2 m apart.

•1.2m < – Surround speakers more than 1.2 m apart.

4When you’re finished, press RETURN. You will return to the Manual SP Setup menu.

Note

1Since the principal is the same, X-Curve isn’t applied when you’re using any of the Home THX modes (see Using the Home THX modes on page 30).

2If you don’t have surround back speakers, or have only one surround back speaker or select Speaker B, Front Bi-Amp or ZONE 2 for Surround Back System, you won’t be able to select this setting (Cannot select shows in the display).

50

En