JBL SYNTHESIS SDP-40 - Manual (Page 127)

MODE ADJUST
SDP-40
5-29
• Designed for playback of 5.1-channel analog film sources.
• Allows 7-channel playback of 5.1-channel analog sources
without THX Surround EX encoding.
• Applies THX re-equalization to simulate high-frequency rolloffs
that occur in movie theaters. Most films are mixed for movie
theaters, and might sound too bright when played back in
home theaters without re-equalization.
• Applies THX timbre matching to minimize timbre differences
between the front and surround channels, which results in
smoother sound movements between them.
• Converts 5.1-channel analog input signals into digital audio for
internal THX processing.
• Allows 5.1-channel analog sources to use bass management,
speaker crossovers, speaker distance calibration, and audio
controls (tone controls).
When THX Ultra2 decoding is engaged:
• Applies adaptive de-correlation to increase the perceived width
of the listening space. De-correlation of the mono surround
channel increases the perceived width of the surround field in
home theaters.
• Applies ASA processing to signals sent to the rear speakers.
Refer to the ASA parameter description on page 3-31 for more
information.
When THX Surround EX decoding is engaged:
• Applies matrix decoding to derive three surround channels
from 5.1-channel analog sources.
Default Possible
Parameter Setting Settings
RE-EQUALIZER ON ON, OFF
SURROUND EX OFF ON, OFF
LFE MIX +0.0dB -10.0 to +0.0dB
OUTPUT LEVELS Refer to page 5-32
CUSTOM Refer to page 5-33
Listening mode menu parameter descriptions begin on page 5-34.
5.1-Channel
Analog
5.1-Channel
THX Surround EX
Analog (Flagged)
5.1-Channel
THX Surround EX
Analog (Non-Flagged) Parameter Setting
Input Source
5.1a ULTRA2
5.1a SurEX 5.1a SurEX SURROUND EX: ON
SURROUND EX: OFF 5.1a ULTRA2 5.1a ULTRA2
5.1a SurEX