RQT9478
25
Troubleshooting and
other information
Glossary/Speci
fi
cations
Speci
fi
cations
AMPLIFIER SECTION
RMS Output Power (each channel driven)
1 kHz, 10 % total harmonic distortion
Front (L/R)
90 W per ch (4
Ω
)
100 Hz, 10 % total harmonic distortion
Subwoofer
105 W per ch (3
Ω
)
Total Power Output
285 W
Input sensitivity/Input impedance
AUDIO IN (TV, AUX4)
450 mV/47 k
Ω
S/N ratio
HDMI (BD/DVD IN, AUX1), DIGITAL IN (TV, AUX2, AUX3)
80
dB
Tone controls
BASS
50 Hz, +6 dB to -6 dB
TREBLE
20 kHz, +6 dB to -6 dB
Input/Output Terminals
AUDIO IN
Analogue Input (TV, AUX4)
2
DIGITAL IN
Optical (TV, AUX2)
2
Coaxial (AUX3)
1
HDMI
Input (BD/DVD IN, AUX1)
2
Output (TV OUT)
1
This system supports “HDAVI Control 4” function.
GENERAL
Power supply
AC 220 V to 240 V, 50 Hz
Power consumption
73
W
In standby condition
Approx. 0.4 W
HDMI off mode
Approx. 0.1 W
Operating temperature range
0°C to 40°C
Operating humidity range
35% to 80% RH (no condensation)
RACK SYSTEM SECTION
Dimensions (W x H x D)
1050 mm x 444 mm x 482 mm
Mass
Approx. 30 k
g
Maximum loading Weight
80 k
g
Shelf Board Max loading weight
Top 12 k
g
/Bottom 12 k
g
SPEAKER SYSTEM SECTION
FRONT (L/R)
1-Way 1 Speaker System (Bass Re
fl
ex)
6.5 cm Cone Type Full Range x2
SUBWOOFER
1-Way 2 Speaker System (Bass Re
fl
ex)
13 cm Cone Type Woofer x2
Note
1. Specifications are subject to change without notice.
2. Total harmonic distortion is measured by the digital spectrum analyser.
Glossary
Analogue
Audio signals produced from L/R audio output terminals of
general equipment is called analogue audio.
CPPM (Content Protection for Prerecorded Media)
This is the copyright protection technology which prevents
fi
le copy of DVD audio.
Decoder, Decode
Decoder is the device to enable us to hear audio data that is encoded on
DVD, etc., as a normal audio signal. This process is called Decode.
Deep Colour
This system can reproduce greater colour gradation (4096
steps) when connected to compatible TV and recorder, etc.
You can enjoy exceptionally rich, natural-looking colours, with
smooth, detailed gradation and minimal colour banding.
Digital
Blu-ray Disc players, DVD recorders, DVD players, and CD players are
usually equipped with digital output terminals. Connect through the digital
terminal to enjoy digital surround sounds such as Dolby Digital and DTS.
Dolby Digital
Digital sound compression technology developed by Dolby Laboratories.
Compatible with surround sound as well as 2-channel stereo sound. With this
technology, you can keep massive amount of audio data in a disc ef
fi
ciently.
Dolby Pro Logic
This system can process not only Dolby Surround, but also other 2-channel
sources to produce a 5.1-channel sound for a more realistic sound
fi
eld. It
is also possible to enhance old movies recorded in stereo with this dynamic
5.1-channel sound. This system uses Dolby Pro Logic to add surround effects
to stereo sources such as video cassettes and CDs.
Dolby Virtual Speaker
This system allows you to enjoy a surround effect with two front speakers and
a subwoofer. This is not merely a “virtual surround” effect, but rather uses the
optimal speaker arrangements and listening positions for 5.1-channel sound.
Down-sampling
This is the process of resampling by reducing the sampling rate
of a signal that was sampled at a certain rate.
DTS (Digital Theater Systems)
Surround system used in most movie theatres. Separation works
well between channels, resulting in realistic surround effects.
Dynamic range
Dynamic range is the difference between the lowest level of sound that can be heard
above the noise of the equipment and the highest level of sound before distortion occurs.
HDMI (High De
fi
nition Multimedia Interface)
HDMI enables you to transmit digital audio and video signals using a single cable.
You can also transmit control signals using HDMI connections.
Multi-channel LPCM (Linear PCM)
This is the uncompressed audio signal encoded digitally. Multi-channel LPCM signals
used for Blu-ray Disc, DVD audio, etc. offer playback with higher-sound quality.
Up to 7.1 channel LPCM signals can be input to this system. Also, you can enjoy
7.1-channel with wider surround effects with SH-FX70 (not included) connection.
Optical
Using optical
fi
bre cable for digital signal input/output from DVD, CD,
etc., provides better sound quality for playback or recording compared to
analogue. Only possible with equipment that has an optical terminal.
PCM (Pulse Code Modulation)
This is one of the methods that enable analogue sounds to be
converted to digital sounds without compression.
This method is used for music CD, etc.
Sampling frequency
Sampling is the process of converting the heights of sound
wave (analogue signal) samples taken at set periods into digits
(digital encoding). Sampling frequency is the number of samples
taken per second, so larger numbers mean faithful reproduction
of the original sound.
Standby through function
When this system and TV and Blu-ray Disc player/DVD recorder
etc. are connected with HDMI cables, image/audio from Blu-
ray Disc player/DVD recorder etc. can still be transmitted to TV
through this system even though the system is turned off.
This is useful when you want to enjoy late night viewing only
with the television’s speakers.
Images recorded with x.v.Colour or Deep Colour are also
supported.
Surround signal
Audio signal made up with front speakers, center speaker
and surround speakers. For this system, surround signal is
automatically played by Dolby Virtual Speaker.
WHISPER-MODE SURROUND
Even when the sound volume level is low, you can enjoy
dynamic surround playback similarly as during normal playback.
This is convenient when listening at night.
x.v.Colour
This is a name of products compliant with ISO Standard for
wider colour space: “xvYCC”. This system supports x.v.Colour.
1080p
This is one of the digital hi-vision images.
1080 is the number of effective scanning lines that constitute
the actual screen. This enables every detail to be beautifully
expressed. Images are less
fl
ickered with progressive method
that scans in order from the top. This system supports 1080p.
5.1-channel surround
Monaural and stereo use 1 channel and 2 channels respectively to
reproduce sound, but 5.1-channel surround uses 5 speakers and 1
subwoofer. The 5 channels are: 1 center speaker, 2 front speakers,
and 2 surround speakers at the side of or to the rear of the sitting
position. Sound output of the subwoofer is much narrower than the
other speakers, and so is considered as 0.1. This is called 5.1-channel
surround when played through all 5.1 channels, and with this system
you can achieve a similar effect with Dolby Virtual Speaker.
