Sony STR-GX9O0ES Operating Instructions Manual page 4

Overview
Welcome
Congratulations on your purchase of this Sony FM stereo/FM-AM receiver !
This manual describes two models: models STR-GX900ES and STR-GX800ES. The functions
and features of these models are the same, except where noted in this manual.
Features of this receiver include:
Dolby *Pro Logic Surround Sound Decoder
¢ Provides four channels of sound information (front left,
center, front right, and rear).
* Four center modes, to match your speaker configuration
(WIDE, NORMAL, PHANTOM and 3 CH (channel)
LOGIC).
* Two enhanced Dolby Pro Logic sound fields, depending
on your sound preferences (LIVE (STR-GX900ES only) and
THEATER).
¢ Variable delay time (15 - 30 ms).
Digital Signal Processing (DSP)
e Automatically converts all signals to digital, which lets
you adjust the sound with virtually no degradation in
sound quality.
« Allows you to customize individual sound parameters
including effect level, room size, wall type, seat position,
and reverb time. (STR-GX900ES)
Sound Field Settings
* A variety of adjustable sound fields simulate the way
you'd experience sound in various listening environments.
STR-GX90UES includes 10 factory preset sound field
settings (HALL, ACOUSTIC, OPERA, CHURCH,
STADIUM, LIVE, JAZZ, DANCE, THEATER, DOLBY
SUR).
STR-GX800ES includes 6 factory preset sound field
settings (HALL, ACOUSTIC, LIVE, DANCE, THEATER,
DOLBY SUR). : '
Digital Synthesis FM/AM Tuning
¢ Allows you to precisely tune in a station.
Parametric Graphic Equalizer (STR-GX900ES)
* Lets you adjust bass, middle, treble, and slope.
30 random FM/AM Station presets
* Lets you store your favorite stations in memory for easy
recall.
Programmable Remote Control
* Remote control with "learning" capability allows you to
use a single remote control for most audio and video
operations.
9 Audio/Video Inputs
¢ Includes five video inputs (one on front panel).
Center Channel and Surround Amps.
* Center channel amp: 100 watts (STR-GX900ES); 90 watts
(STR-GX800ES)
¢ Surround channel amp: 30 watts
4/8-Ohm Impedance Switch
* Lets vou use front and center speakers with either 4 or 8
ohm impedance.
Station Index
¢ Lets you group preset stations by specific names.
Audio/Video Editing
¢ Lets you combine a video image with the sound from
another program source.
About Dolby Surround Sound
The sound tracks of many programs, including current TV
shows and movies that are on video cassette and laser disc,
use Dolby Surround Sound. This enhanced audio
soundtrack complements the action as it happens on the
screen. Surround sound uses four separate channels to
direct off-screen audio effects, on-screen dialog, left-to right
panning, and music, bringing you right into the action. In
the past, you would have to go to a movie theater to
experience all the benefits of surround sound. But now, with
the special sound decoder that is built into this receiver, you
can experience Dolby Surround Sound right in your living
room, with sound that even rivals what you would
experience in a movie house.
Independent 3-Channel Amplifier
The amplifier section is composed of independent power
circuits for all channels; front left, right and center channels,
and uses a parallel push-pull output circuit. This circuit
design allows the output impedance to be lowered, while
allowing current flow and total power dissipation to
increase. The result is better performance into low
impedance loads, and at high power output levels.
Full Bandwidth Center Channel
Because as much as 70% of a typical movie's audio "energy"
comes from the center channel, Sony has designed this
receiver-with full-bandwidth center channel amplifiers
(20 Hz - 20 kHz). This discrete amp is powered by a large
transformer and uses dedicated filter capacitors for each
channel to further ensure superior audio quality during
transients and peak power output periods.
Power Swap
The Power Swap feature lets you add to the receiver's total
amplification without compromising the signal integrity (if
you want to add a separate power amplifier).
Low Filter (Models for U.S.A. and Canada)
For superior performance when using a subwoofer, this
switch will eliminate signals below 100 Hz from the front
speakers. This filter will prevent phase cancellation between
the subwoofer and the front speakers.
* Manufactured under license from Dolby Laboratories Licensing
Corporation. Additionally licensed under one or more of the following
patents; U.S. number 3,959,590; Canadian numbers 1,004,603 and 1,037,877.
"Dolby", "Pro Logic", and the double-D symbol are trademarks of Dolby
Laboratories Licensing Corporation.