m Decoders for latest audio formats m 32bit high speed floating point
DSP m MDS Plus type D/A converters for all 8 channels m Auto level
adjustment for each speaker m Large 40 character × 2 line display for
smooth function control m Lip-sync function m Total separation of
audio and video sections m Optional line doubler and quadrupler
* Licenses for the various audio decoding formats pending.
The Home Theater Reference Experience a sound stage of overwhelming
realism. Build a true high-end home theater with this superb A/V Control
Center. 32bit floating point processors operating at high speed perform all
DSP functions. Analog output in 8 channels is created by MDS Plus type
D/A converters. 40 character × 2 line display shows settings and allows quick
access. Automatic speaker level adjustment assures highly accurate results.
The VX-700 is an A/V Control Center
designed specifically for true high-end home
theater applications. It handles both sound
and video with the same unwavering
dedication to quality. Super advanced digital
audio technology developed by Accuphase
is of course in full evidence, and picture quality
also is honed to the highest level. Enjoy home
theater ambience and realism as never
experienced before.
The VX-700 incorporates two high speed
32bit DSP devices operating with software
specially developed by Accuphase to decode
a multitude of audio formats. Internal digitalto-analog conversion is performed by MDS
Plus type D/A converters in all eight channels.
The resulting sound quality is on a par with
the best of high-end pure audio components.
A versatile array of digital inputs and outputs
allows connection of external components
(such as the DF-35 or DG-28/DG-38) after
DSP processing. The supplied microphone
serves to automatically adjust speaker levels.
Other functions accessible through a set of
layered menus include accurate lip-sync
adjustment and a memory for seven audio
setting patterns. The large display makes
navigating the menus easy and intuitive.
The VX-700 is also well equipped to handle
video signals from advanced sources with
ever improving quality. The audio and video
sections of the unit are kept completely
separate to prevent interference and
unwanted interaction. This applies not only
to the electrical circuitry and the power supply
but also to physical construction and rear
panel design.
32bit high speed floating point DSPs
All audio signals input to the VX-700 are
processed in the digital domain using highly
advanced DSP (Digital Signal Processor)
technology. Two ultra fast SHARC processors
from Analog Devices provide the muscle to
handle very large amounts of data with utmost
precision. There is no need to eliminate any signal
data, so that even the finest details can be
faithfully preserved.
MDS Plus type D/A converters in all eight
channels
To create the analog audio output signals, the
VX-700 harnesses the best D/A converter
technology available. Called MDS Plus, this
revolutionary converter principle employs multiple
Delta-Sigma converters mounted in a parallel
configuration. When the output signals of the
converters are combined, even minute
conversion imprecisions are canceled out,
resulting in a drastic
improvement of all
major performance
aspects, such as
conversion accuracy,
S/N ratio, dynamic
range, linearity, and
freedom from distortion.
Signal
Conversion error
Digital input
MDS output
Note the ratio of signal level vs. conversion error
level: in the MSD output, the conversion error is
Fig. 2 MDS Plus D/A Converter Principle
Superb picture quality
The VX-700 offers six video inputs including
facilities for component and S-Video signals.
The video switcher uses a high-performance
wide-band amplifier with a range extending
beyond 100 MHz, allowing it to handle even
the doubler component of high-definition
broadcast satellite signals.
Intelligent operation modes let you enjoy
surround sound straight away
After connecting input and output devices and
the loudspeakers, you can start enjoying
surround sound with the default settings simply
by operating the input selector and volume
control. This is made possible by modes for a
2-channel systems (using SRS TruSurround)
and a 5.1-channel system.
much smaller in relation to the signal level.
MDS
output
VIDEO SELECTOR VOX-1 (Standard Equipment)
Fig. 1 VX-700 Block Diagram
Useful lip-sync function
Because the video signal and audio signal pass
through different digital circuits, a time lag can
occur between the mouth movements of the
actors and the soundtrack heard over the
speakers. This is compensated for by delaying
the audio signal timing in relation to the video
signal. The lip-sync function gives you control
over this process by providing an adjustment
range of 20.0 frames in 0.1-frame steps. The
adjustment can be made while watching actual
program material, for utmost flexibility.
Seven audio setting patterns can be stored
in memory, for quick recall, check, or editing.
Total separation (internal construction and
rear panel) of audio and video sections
prevents any possibility of mutual
interference.
Logical menu structure and large 40-character
by 2 line display makes operation a breeze
All settings of the VX-700 can be accessed
through a system of layered menus that appear
on the amplysized display panel. This lets you
quickly establish any desired setting.
m Controls used for making settings are arranged
on a folding panel that retracts into the unit.
m Three rotary jog dial type knobs are assigned
to top-level, medium-level, and low-level items,
with corresponding dialog-type menus.
Versatile additional functions and features
n Optimized speaker settings with automatic
adjustment function
n Adjustable delay for all channels up to 20 m
in 1-cm steps
n "Small" settings for speakers and subwoofer
Cut-off frequency: 25 settings from 10 - 355 Hz
Cut-off slope: 12/18/24/48 dB/octave, selectable
n Display brightness adjustable in five steps
n Selectable volume display units: linear or dB
n Attenuator level: –6/–20/–30 dB or Mute
n Safety lock for all settings
n Editable memory and input position names
n A/D converter for analog inputs with
selectable sampling frequency: 48/96 kHz
n Center speaker allows adjustment of dialog
position height
n Center level adjustment possible during
playback
n Subwoofer level adjustment possible during
playback
n 6-channel level balance adjustment for
analog inputs
n Analog "F" output setting: optimized for 2
subwoofers or 2 surround rear speakers
n Speaker equalizer characteristics
compensation: 2 bands for L/R front
speakers and 6 bands for center/surround/
surround rear speakers allow detailed
adjustment
m Setup has the following four modes to ensure
smooth and quick operation.
[CONFIG] mode: Basic input environment and general settings
[AUDIO] mode: Audio related settings
[VIDEO] mode: Video related settings
[QUICK] mode: On-the-fly settings during playback
Ready for future version upgrades
With the VX-700, you are not "locked in" when it
comes to compatibility and features. When new
functions or support for new audio formats
become available, you can upgrade the
system software of the unit. This can
be done simply by playing
the Update CD in a
conventional
CD player
connected
to the unit.
RS-232 connector for external control
The built-in RS-232
interface makes the
VX-700 compatible
with integrated control
systems for the home
such as AMX.
n Balanced analog output
assembly
All 8 analog output channels use
an MDS Plus type D/A converter.
n Supplied remote commander
RC-31
All functions of the main unit except
for the power switch and ALL
CLEAR are duplicated by the remote
commander.
Built-in decoding capability for the latest audio formats
The VX-700 is designed to derive optimum performance from the latest audiovisual sources
in all program genres. Full support for a wide range of audio formats and versatile channel
configurations for various speaker arrangements let you enjoy surround sound at its best.
n Block Diagram
of Audio Section
Digital
input
Analog
inputs
(Front left)
(Front right)
(Surround left)
(Surround right)
(Center)
(Subwoofer)
(Surround rear left)
(Surround rear right)
or
(Subwoofer 2)
Analog
outputs
Automatic selection of input signal format (when effect mode is set to "Direct")
n Dolby Digital
n DTS
Digital discrete principle with 5.1 entirely separate channels: front L/R,
center, surround L/R, and subwoofer (0.1 channel).
Excellent channel separation assures a realistic sound stage with good
depth, movement definition, and source positioning
.
n Dolby Digital EX
This format adds one or two surround rear channels to the Dolby 5.1ch
format, resulting in 6.1 channels (single surround rear speaker) or 7.1
channels (two surround rear speakers). Spatial definition and positioning
are improved, and sound rotation or sound that seems to pass above the
listener's head is possible, for heightened realism.
Surround playback of
2ch
multi-channel sources
with 2 speakers
Front left Front right
Standard playback
5.1ch
arrangement for multichannel sources
Front left Front right
Surround left
6.1ch
Front left Front right
Center
Subwoofer
Surround right
One additional surround
rear speaker
Center
n DTS 96/24
DTS 96/24 is the latest surround sound format developed by Digital
n DTS-ES
This format adds a surround rear channel to the DTS 5.1ch form at,
resulting in 6.1 channels. Spatial definition in a 360-degree arc is possible.
Theater Systems, Inc. It combines high picture quality with high-quality
surround sound. Sophisticated compression technology ensures a
frequency range that is equal to 96 kHz/24bit PCM recording, resulting
in surround channels that rival high-end audio only sources.
Matrix 6.1
The surround rear channel information is matrix encoded in the surround
channels. During playback, a matrix processor extracts the surround rear
signal for 6.1ch output.
Discrete 6.1
The three surround channels are recorded as fully discrete full-range
signals. During playback, discrete 6.1ch output is available.
n Linear PCM
A format for 2-channel digital sources with sampling frequencies up to
96 kHz.
n MPEG2 AAC
This format has been adopted in Japan as audio compression format for
digital broadcast satellite programs. Its implementation as "AAC 5.1ch"
provides 5.1 multi-channel sound for video and music sources from
satellite.
n Analog signal input
2-channel or 6-channel analog signals are converted by A/D converters
for internal processing and playback.
Effect mode settings for optimum surround playback
2.1ch - 5.1ch surround sources
Even with only two L/R speakers, this mode makes it
possible to enjoy Dolby Digital, DTS, MPEG-2 AAC or
other multi-channel surround sources having from
2.1 to 5.1 channels. This is suitable for example for
high-end audio systems which have only two large
high-quality speakers, or for occasions where space
restraints make it difficult to install a large number of
speakers.
n SRS TruSurround: Default setting
[ 2ch virtual surround
This mode lets you enjoy high-quality surround sound from 2-channel input sources, such as Dolby Surround, DTS,
linear PCM, or from a CD player or another digital or analog source. Playback can use either 4.0/5.0 or 6.1 channels.
n Dolby Pro Logic II
[Mode: Movie/Music (5.0ch), Pro Logic (4.0ch)]
Surround left
7.1ch
Front left
Surround left
2ch audio signal [ 4.0/5.0ch or 6.1ch surround playback
n DTS Neo:6
[Mode: Cinema/Music]
n SRS Circle Surround II
[Mode: Cinema/Music/Mono (6.1ch)]
Subwoofer
Surround rear
Surround right
Two additional surround
rear speakers
Center
Front right
Subwoofer
Surround rear
Surround right
Downmix playback
In rooms where a center speaker is hard to install due to obstruction by the
screen or other reasons, or in systems without a subwoofer, you can downmix
the signal from 5.1 and higher channel sources to 4.0 channels (no center
speaker and subwoofer), 4.1 channels (no center speaker), or 5.0 channels
(no subwoofer).
The channel level of the center speaker and subwoofer (LFE) can be easily
adjusted using the menus, to achieve optimum surround balance also when
using the downmix mode.
m In the speaker menu, set the center channel or subwoofer channel to NONE (no
speaker connected).
m The input signal in the center channel or subwoofer channel set to NONE will be
mixed to the signal for the front L/R speakers.
4.0ch
(no center speaker/subwoofer)
Front left
Surround left
Front right
Surround right
4.1ch
(no center speaker)
Front left
Surround left
Front right
Subwoofer
Surround right
5.0ch
(no subwoofer)
Front left
Surround left
Center
Front right
Surround right
VX-700 playback connection examples
To make input and output connections for the VX-700, you first select the appropriate cables and connectors from the available choices
for audio and video. Using the setup menus, you can then assign any audio input to any video input, so that the input selector will switch
both audio and video at the same time. The VX-700 offers an amazing eight output channels (8 unbalanced, 6 balanced connectors), letting
you drive amplifiers for as many as eight speakers. Enjoy surround sound with unsurpassed flexibility and impact.
n 7 digital audio inputs with editable input names
OPTICAL x 4, COAXIAL x 2, BALANCED
n 2-channel/6-channel analog inputs
Signals from these inputs are converted into digital form by 24bit A/D converters
with 48/96 kHz sampling frequency.
n Maximum 8 analog output channels for no-holds-barred surround
playback systems
8 unbalanced and 6 balanced connectors are provided.
DVD/CD, MD,
broadcast satellite
tuner, TV, etc.
RCA component video cable Optical fiber cable
D-connector cable
Projector, TV
monitor, etc.
n Versatile video input configuration designed for high quality
connections
2 S-Video connectors and 4 component inputs (BNC x 1, RCA x 1, D5 x 2) are
provided.
n Component video outputs as standard equipment
Two sets of component outputs (BNC and RCA) are provided. All video signals from
the S-Video inputs are converted to component signals.
Coaxial digital cable
Audio cable
Front (L)
Center (C)
Front (R)
Subwoofer
(D)
RCA component
video cable
* When using an active subwoofer (with built-in
power amplifier), connect it directly to the "D"
output of the VX-700.
Using the digital audio inputs and outputs
Connection of DF-35 for front speaker multi-amping
The VX-700 provides a digital output comprising volume data for front left
and right. This lets you connect the Digital Channel Divider DF-35 for multiamping of the front speakers.
L/R channel
Surround right
(B)
Power
amplifiers
Unbalanced 8 channels, balanced
6 channels
Max. 8 speakers
Surround left
(A)
Surround back
Connection of external DAC or DG-28/DG-38 for sound field compensation in a specific channel
Connection examples
m Connect DG-28/DG-38 for sound field compensation in front (L/R),
center (C) and subwoofer (D) channels
m Connect external DAC for surround channels A/B
To A/B channel
speakers
Front left (L) Front right (R)
Center (C)
Power amplifier
Audio cables
External D/A converter
Coaxial digital cable
A/B channel
To other speakers
(except front L/R)
Front left speaker
(LEFT)
Low-range
power amplifier
To power amplifiers
for other speakers
(except front L/R)
Audio cables
Coaxial digital cable
Front right speaker
High-range
power amplifier
(RIGHT)
Surround back
(E) (F)
Surround left
(A)
To other speakers
(except A/B channel)
Subwoofer
(D)
Surround right
(B)
To power amplifiers for
other speakers
(except A/B channel)
C/D channelL/R channel
Automatic speaker adjustment function with
supplied microphone
For optimum surround sound playback, it is very
important to carefully adjust the level of each
speaker to fit the listening position. This can be
an arduous process, but the VX-700 makes it
easy. Simply set up the provided measurement
microphone in the intended seating position and
activate the test tone output for highly precise,
fully automatic adjustment.
Automatic adjustment start
Measurement in progress
Option boards
The VX-700 incorporates a video switcher using a
high-performance amplifier with a frequency response
extending beyond 100 MHz. In the factory default
configuration, the video output section incorporates
the VOX-1 module, but future expansion options such
as VOX-2 and VOX-3 will make it possible to push the
quality level up even further.
Introduction of the VOX-1394 featuring a digital link
conforming to IEEE 1394 is also planned.
m Expansion options can be easily installed in dedicated rear
panel slots.
VOX-1394 expansion slot
Designed for VOX-2/VOX-3
VOX-2 Line Doubler
m Compatible with High Definition
NTSC
m 525i 525p
m 1125i 1125p
m 2-3/2-2 pulldown
m Integrated adjustment test
pattern
VOX-3 Line Quadrupler
m Line doubler + scaler compatible with High
Definition video
m 525i 525p
m 1125i 1125p
m VGA/SVGA/XGA/SXGA/quadrupler (1280 × 960)
m 2-3/2-2 pulldown
m Integrated adjustment test pattern
VOX-1394 Digital Input Board
m IEEE 1394 digital link
n Front panel
[Guaranteed specifications measured according to EIA standard RS-490]
m Digital inputs OPTICAL format: EIAJ CP-1201 compliant
m Analog inputs A/D converter: sampling frequency 48/96 kHz, 24bit
m Digital output COAXIAL format: EIAJ CP-1201/AES 3 compliant
m Frequency response 0.5 –50,000 Hz +0, –3.0 dB
m D/A converter 24bit, MDS principle
Pressing tahis button gives
access to the sub panel
n Rear panel
Option board
Standard equipment
[ ]
VOX-1
A Input selector
B Display
C Volume control
D Power switch
E Setup mode selector buttons
CONFIG AUDIO VIDEO QUICK
F Microphone jack
G EXIT button
H Menu level back () button
I Menu level forward () button
J Menu setting knobs
MENU 1 MENU 2 MENU 3
m Manufactured under license from Dolby Laboratories.
m "Dolby", "Pro Logic", "Surround EX" and the Double-D Symbol are trademarks of Dolby Laboratories.
m "DTS", "DTS Digital Surround", "DTS-ES Extended Surround" and "Neo:6" are trademarks of Digital Theater Systems, Inc.
m "Circle Surround II", "TruSurround" and "SRS Sound" are trademarks of SRS Labs, Inc.
m The "AAC" logo is a trademark of Dolby Laboratories.
m is a registered trademark of ASTRODESIGN, Inc.
Remarks
0
This product is available in versions for 120/230 V AC. Make sure that the voltage shown on the rear panel matches the AC line voltage in your area.
0
The shape of the AC inlet and plug of the supplied power cord depends on the voltage rating and destination country.
expansion slot
0
K Attenuator button
L Video outputs
(Standard equipment: VOX-1)
M Video inputs
N Analog audio inputs
O Digital audio inputs
P Digital audio outputs (for DF-35)
Q External control connector (RS-232)
R Digital input/output connectors
(for external DAC or DG-28/DG-38)
S Audio outputs (unbalanced x 8, balanced x 6)
0
T AC inlet
m Total harmonic distortion 0.001% (20 - 20,000 Hz)
m Signal-to-noise ratio 113 dB
m Dynamic range 100 dB
m Channel separation 90 dB (20 - 20,000 Hz)
m
Output voltage and impedance
m Volume control dB mode: Minimum, –120.0 dB to +12.0 dB, Maximum
m S-Video connectors Input level/impedance Y signal: 1 Vp-p/75 ohms
m
Component video connectors
m
Maximum allowable input level
m Power requirements AC 120 V / 230 V, 50 / 60 Hz
m Power Consumption 55 W
m Maximum Dimensions Width: 475 mm (18-7/10")
m Weight 20.1 kg kg (44.3 lbs) net
VX-700 Guaranteed Specifications
Audio section
Video section
General
COAXIAL format: EIAJ CP-1201/AES 3 compliant
BALANCED format: EIAJ CP-1201/AES 3 compliant
Sampling frequencies
32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
(16 to 24 bits, 2-channel PCM)
BALANCED/UNBALANCED:
Linear mode: Minimum, 0.5 to 99.5 (0.5-unit steps), Maximum
Speed-sensing rotary control
Frequency response 5 Hz - 10 MHz +0, –0.3 dB
Input/output level/impedance
Frequency response DC - 100 MHz +0, -0.3 dB
At least 1.5 Vp-p
(Voltage as indicated on rear panel)
Height: 195 mm (7-7/10")
Depth: 452 mm (17-8/10")
26.0 kg (57.3 lbs) in shipping carton
Supplied accessories:
2.4 V (0 dB), 9.4 V (Maximum), 50 ohms
C signal: 0.286 Vp-p/75 ohms
Y signal: 1 Vp-p/75 ohms
Pb/Cb, Pr/Cr signal: 0.7 Vp-p/75 ohms
m Microphone AM-28
m Microphone cable
m Microphone holder
m Audio cable with plugs (1 m)
m AC power cord
m Remote commander RC-31
• Specifications and design subject to change without notice for improvements.
L0205Y PRINTED IN JAPAN 851-0129-00 (AD1)http://www.accuphase.com/
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