5
ENGLISH
3
CAUTIONS ON HANDLING
4
FEATURES
• Switching the input function when input jacks are not
connected
A clicking noise may be produced if the input function is switched
when nothing is connected to the input jacks. If this happens,
either turn down the MASTER VOLUME control or connect
components to the input jacks.
• Muting of PRE OUT jack, HEADPHONE jack and SPEAKER
terminals
The PRE OUT jack, HEADPHONE jack and SPEAKER terminals
include a muting circuit. Because of this, the output signals are
greatly reduced for several seconds after the power operation
switch is turned on or input function, surround mode or any other
set-up is changed.
If the volume is turned up during this time, the output will be very
high after the muting circuit stops functioning. Always wait until
the muting circuit turns off before adjusting the volume.
• Whenever the power operation switch is in the STANDBY
state, the apparatus is still connected on some AC line
voltages.
Please be sure to unplug the cord when you leave home for,
say, a vacation.
1. Dolby Digital EX decoder system
Dolby Digital EX is a 6.1-channel surround format proposed by
Dolby Laboratories that allows users to enjoy in their homes the
“DOLBY DIGITAL SURROUND EX” audio format jointly
developed by Dolby Laboratories and Lucas Films and first used
for the movie “Star Wars Episode 1 – Phantom Menace”.
The 6.1 channels of sound, including surround back channels,
provide improved sound positioning and expression of space.
2. DTS-ES Extended Surround and DTS Neo:6
The AVR-1604/684 is compatible with DTS-ES Extended Surround, a
new multi-channel format developed by Digital Theater Systems Inc.
The AVR-1604/684 is also compatible with DTS Neo:6, a surround
mode allowing 6.1-channel playback of regular stereo sources.
3. Dolby Pro Logic II decoder
Dolby Pro Logic II is a new format for playing multichannel audio
signals that offers improvements over conventional Dolby Pro
Logic. It can be used to decode not only sources recorded in
Dolby Surround but also regular stereo sources into five channels
(front left/right, center and surround left/right). In addition, various
parameters can be set according to the type of source and the
contents, so you can adjust the sound field with greater precision.
4. Dolby Digital decoder
Using advanced digital processing algorithms, Dolby Digital
provides up to 5.1 channels of wide-range, high fidelity surround
sound. Dolby Digital is the default digital audio delivery system for
DVD and North American DTV.
5. DTS (Digital Theater Systems)
DTS provides up to 5.1 channels of wide-range, high fidelity
surround sound, from sources such as laser disc, DVD and
specially-encoded music discs.
6. Auto Surround Mode
This function stores the surround mode last used for an input
signal in the memory and automatically sets that surround mode
the next time that signal is input.
7. 6CH EXT. IN jacks
This unit is equipped with 6CH EXT. IN jacks for use with audio
formats of the future.
8. High performance DSP simulates 7 sound fields
Playback is possible in 7 surround modes: 5/6-channel Stereo,
Mono Movie, Rock Arena, Jazz Club, Video Game, Matrix and
Virtual. You can enjoy a variety of sound effects for different movie
scenes and program sources even with stereo sources not in
Dolby Surround.
9. Personal Memory Plus function
Personal Memory Plus is an advanced version of Personal
Memory. With Personal Memory Plus, the set automatically
memorizes the surround mode, channel volume, surround
parameters, etc., for each of the separate input sources.
2
CAUTIONS ON INSTALLATION
Noise or disturbance of the picture may be generated if this unit or
any other electronic equipment using microprocessors is used near a
tuner or TV.
If this happens, take the following steps:
• Install this unit as far as possible from the tuner or TV.
• Set the antenna wires from the tuner or TV away from this unit’s
power cord and input/output connection cords.
• Noise or disturbance tends to occur particularly when using indoor
antennas or 300 Ω/ohms feeder wires. We recommend using
outdoor antennas and 75 Ω/ohms coaxial cables.
For heat dispersal, leave at least 0.3 ft (10 cm) of space between
the top, back and sides of this unit and the wall or other
components.
0.3 ft (10 cm) or more
wall
0.3 ft (10 cm) or more
