DSP-Z11 - MR Hifi

DSP-Z11 - MR Hifi
NEW
PRODUCT
BULLETIN
DSP-Z11
11.2-Channel Digital Home Theatre Amplifier
Yamaha takes AV amplifier evolution to a new peak
with an enormous range of exciting capabilities.
Unprecedented Audio Performance
䢇 7-channel 240W/ch + 4-channel 90W/ch
powerful surround sound (max)
䢇 Digital ToP-ART and High Current Amplification
with high quality and custom-built audio-grade
parts and devices used throughout
䢇 Super Stable Chassis design
High Sound Quality
Preamplifier Stage
䢇 New Pure Direct for lossless audio formats also
䢇 Pure Ground DAC Concept
䢇 High quality preamplifier block design
䢇 Low-Jitter PLL and Digital Clock Circuits
䢇 High quality headphone amplifier circuit
Power Amplifier Stage
䢇 All-Channel Current Feedback Circuit
䢇 Hybrid Low Noise Power Supply
䢇 Symmetrical Layout and New Power Circuit Layout
䢇 Low-impedance, minimum loop print pattern
䢇 Thick aluminium panels and large, heavy feet
High Picture Quality
䢇 Latest HDMI 1.3a specification supports Deep
Color (30/36 bit) transmission, xvYCC color
space, Refresh Rates of 100Hz/120Hz and
1080p/24Hz, and Auto Lip-Sync compensation
䢇 Analogue and HDMI digital video signal
upscaling to Full HD 1080p and downscaling to
480p/576p format
[email protected]
䢇 Analogue video to HDMI digital video
upconversion capability
● 4 component video in and 2 monitor outs
Advanced Features
䢇 Network Receiver Capabilities
● Network port to connect a PC and Yamaha
MCX-2000 or access the Internet Radio via LAN
● Compatible with Windows Vista & Windows
Media Player 11 as well as Windows Media
Connect
● PlaysForSure network device support
● 2 USB ports (1 on front, 1 on rear) to connect
USB memory devices or portable audio
players
● Supports MTP devices and Mass Storage
Class devices
● Supports 500mA power from USB port
● Supports USB HDD (FAT32 format, up to 2TB)
䢇 iPod compatibility via optional Yamaha Universal
Dock YDS-10
䢇 Advanced YPAO (Yamaha Parametric Room
Acoustic Optimiser) for automatic speaker setup
● Multiple point measurement feature for
multiple listening positions
● Specialised parametric equaliser for standing
wave reduction
● Speaker angle measurement feature for
optimised CINEMA DSP
● YPAO Easy Starter
䢇 Multiple Subwoofer connection capability
1/4
Brilliant Audio: Titanium
● 6 or 8-channel additional input jacks for
discrete multi-channel inputs
䢇 10 System Memories for Main Zone and 4
System Memories for other each Zone
䢇 GUI on-screen display of six languages: English,
French, German, Spanish, Russian and Japanese
Versatile Zone Control
䢇 Intelligent assignable amplifiers: bi-amping and
multi-zone control (Zone 2/Zone 3/Zone 4)
䢇 Preamplifier Mode
䢇 Zone 2 video output (component and
composite) with OSD capability
䢇 Zone 2 digital audio output (coaxial)
䢇 Party Mode
䢇 Display of song data and radio information on
zone OSDs
䢇 Sleep timer and mute level for all zones
䢇 Zone Mono
䢇 Flexible and assignable dual +12V trigger outs
Surround Realism
䢇 New CINEMA DSP HD3 creates lush, dense,
accurate sound field with 33 DSP programmes
䢇 THX Ultra2 Plus surround modes with 7 THX
programmes (Industry first)
䢇 Improved Compressed Music Enhancer
䢇 Adaptive DRC (Dynamic Range Control) and
DSP effect level controlling capability
● SILENT CINEMA and Virtual CINEMA DSP
NEW PRODUCT BULLETIN
DSP-Z11 11.2-Channel Digital Home Theatre Amplifier
Yamaha’s main goal for the DSP-Z11 was to
achieve the highest possible sound quality
through loseless reproduction via HDMI signal
transmission. We began with no preconceived
notions, designing everything purely for the
purpose of creating a new receiver standard for
the HD audio era. We focused especially on the
fact that not only analogue and digital signal
transmission by coaxial or optical routes, but also
transmission by the HDMI route will be a priority
in the future.
Achieving our goal for the DSP-Z11 involved
a huge number of design considerations, but five
of the most important ones are as follows. We
used the Pure Ground DAC concept to realise
the best possible sound reproduction from HDMI
transmitted signals. We employed two-stage jitter
reduction, consisting of a low-jitter PLL circuit
and VCXO processing that includes HDMI signal
input for stable clock operation. An 11-channel
current feedback circuit contributed to open and
appealing sound quality. We opened a new era
of sound field creation through the use of 7.2channel plus 4-channel presence speaker setting
and CINEMA DSP HD3. And we developed a
New Pure Direct that controls the power supply
and route according to the multi-channel and HD
audio reproduction.
The result is a truly impressive reference
receiver for realising all the possibilities of the HD
audio era.
the shortest possible signal
routes. To achieve the quality
demanded by the latest lossless
compression formats received
via HDMI bitstream transmission, circuit board
designs were radically revised and parts
selection was reevaluated. The DSP-Z11’s
superior parts include Burr-Brown DSD1796
DACs, an op amp, custom-made 27,000µF
block capacitors and Schottky barrier diodes. A
Variable Volume Control helps provide the best
possible S/N ratio. High Current Amplification
circuitry achieves high current power with low
impedance for superior amplifier performance.
Super Stable Chassis Design
The internal chassis design uses an ultra-rigid
Rahmen structure, which is a series of H-shaped
frames. This rectangular structure secures and
isolates the parts sections, while reducing
vibration to a negligible amount. The external
chassis walls are thick (1.6mm) and heavy.
High efficiency heat sinks
H-shape frames to hold heavy
and big power transformer
Presence L/R
Main L/R
Subwoofer L
Surround L/R
Centre
Surround
Back L/R
Subwoofer R
Rear Presence L/R
Digital ToP-ART and High Current
Amplification
Yamaha’s
Digital ToPART design
concept
ensures that
1
2
the receiver is
fully capable
of handling
the
transmission
of high
3
4
volume digital
sound data at
speeds up to
5
6
192kHz. The
interior layout 1 Custom-made 27,000µF block capacitors
2 Extra-large 10kg power transformer
thoroughly
3 High efficiency heat sink
isolates the
4 Large-size speaker terminals
digital,
5 Volume IC JRC NJM1194 (left), Burr
analogue and
Brown audio DAC (DSD1796, centre) and
video sections
Op amp LM4562 (right)
and provides 6 Schottky barrier diodes
DIR
(Low-Jitter PLL Circuit)
VCXO Digital
Clock Circuit
Output
Input
PC
Tek Stop: 1.00GS/s
T
Ch1 Zoom:
LPF
Tek Stop: 1.00GS/s
10994 Acqs
2.0X Vert
VCO
T
Ch1 Zoom:
20.0X Horz
PC
LPF VCXO
657 Acqs
2.0X Vert
20.0X Horz
1
1
Ch1
1.00 V
Conventional Circuit
M 2.50ms Ch1
1.64V
Ch1
1.00 V
M 2.50ms Ch1
1.64V
Conventional circuit
shows a wide range
of jitter while the
DSP-Z11 preamplifier exhibits virtually no jitter.
VCXO Circuit
High Sound Quality: Power Amplifier Stage
All Channel Current Feedback Circuit
The power amplifier uses current rather than
voltage for feedback in all channels. Because
there is virtually no phase shift, phase
compensation can be kept to a minimum. This
contributes to the DSP-Z11’s excellent transient
response,
Current
allows
Feedback
frequency
Frequency
response to
Response/
remain
Principle
unchanged
Current
even when the
Adder
Output
nput
gain changes,
I/V Converter
and creates a
Buffer
Power Amplifier
Trans-Impedance
Amplifier
Stage
Amplifier
warmer,
Current Feedback
texture-rich
Circuit
sound.
Unprecedented Audio Performance
11.2-Channel High Density Surround Sound
(7-Channel 240W/ch + 4-Channel 90W/ch, Max)
The DSP-Z11 delivers 240W x 7 channels plus
90W to the four presence and rear presence
channels. It also allows the simultaneous use of
two subwoofers (hence 11.2 channels). In
addition to Yamaha’s latest CINEMA DSP HD3
technology for high density, incredibly detailed
surround sound, it provides extensive zone
customisation functions, enabling the 11 amp
channels to be allocated to zones 2, 3 and 4 in
various configurations.
DSP-Z11 11.2-Channel Speaker Configuration
Low-Jitter PLL and Digital Clock Circuits
The preamplifier stage incorporates both a lowjitter PLL circuit and a VCXO digital clock circuit,
significantly reducing jitter from digital inputs so
sound processing can be accomplished without
being affected by jitter. This is particularly
effective in improving the sound quality of digital
signals that are input via HDMI.
Low-Jitter PLL and VCXO Digital Clock Circuits
Gain (dB)
For the HD Audio Era
Frequency (Hz)
1.6mm super stable
chassis
Rahmen structure
(series of rectangle frames)
High Sound Quality: Preamplifier Stage
New Pure Direct Concept
For the DSP-Z11, Yamaha has upgraded its
popular Pure Direct feature. It now provides
higher sound quality from lossless audio formats
digitally transmitted via HDMI, while still
ensuring optimum quality from CD and analogue
audio sources. It allows the enjoyment of twochannel CD output, multi-channel Super Audio
CD and DVD-Audio output, and even Blu-ray,
HD-DVD and other HD sources.
Pure Ground DAC Concept
The DACs, vital determinants of digital audio
quality, are placed on the analogue circuit
board, preventing the large ground potential
differences that can
occur when the digital
and analogue sections
are far apart.
Furthermore, the DACs
are connected directly
to the power supply to
avoid degradation of
Preamplifier Circuit Board
low level signals. This
helps to maximise both two-channel and multichannel audio performance.
High Quality Preamplifier Block Design
The printed circuit boards are located very close
to each other. This has
the advantages of
minimising signal
paths, shortening
signal loops and
improving noise
isolation from other
circuits.
2/4
Hybrid Low Noise
Power Supply
A highly efficient DCDC converter and
extra-large transformer
is used for the digital
circuit, which requires
high current input, and
a low noise power
supply circuit for the
analog audio circuit. An
independent current
power path is provided
for the speaker relays
Digital power circuit board (top)
and display.
and analog power board (bottom)
Symmetrical Layout and
New Power Circuit Layout
The heavy power transformer is in the centre
with the heat sinks on either side to ensure
equal weight
distribution. The power
circuit layout separates
the video and digital
audio section from the
analogue audio section
to eliminate adverse
influences, and
distances between
circuits and power
supplies were shortened to avoid high current
loop problems.
Thick Aluminium Panels and Large, Heavy Feet
Thick aluminium panels
are used throughout to
prevent vibration and
maintain high
performance audio
reproduction. The
large, heavy feet also
serve to dampen
Ultra rigid feet and large twinexternal vibrations.
fan (92mm) cooling system
NEW PRODUCT BULLETIN
DSP-Z11 11.2-Channel Digital Home Theatre Amplifier
High Picture Quality
HDMI 1.3a Compatibility
The DSP-Z11 is compatible with
the newest version of the HDMI
standard, 1.3a, providing the benefits of Deep
Color (30/36bit) and the xvYCC colour standard.
Digital video and audio signals can be transmitted
via a single HDMI cable and it accepts the
lossless audio formats
Dolby TrueHD and DTS
Master Audio. There
are five HDMI inputs,
one of which is on the
front panel, as well as
two HDMI outputs that
allow images to be
displayed on two
devices, such as a flat
panel monitor and a
projector. HDMI 1.3a
means the DSP-Z11
can handle the high
1080p/24Hz resolution
of Blu-ray Discs, and
Digital video circuit board (top) and
also provides an Auto
analogUE video board (bottom)
Lip-Sync function that
automatically adjusts the lag between video and
audio and a double speed Refresh Rate of
100Hz/120Hz.
HDMI
Input
(Field Programmable
Gate Array)
Analogue
Video
Input
Advanced Features
Network Receiver Capabilities
Like other Yamaha network receivers, the
DSP-Z11 can be connected to a PC or Yamaha
MCX-2000, and can access Internet Radio via a
LAN. It supports the LAN standby mode, allowing
an external controller to send commands via an
ethernet link. Two USB ports are provided, on the
front and rear, with 500mA power support. It is
compatible with PlaysForSure devices, Windows
Vista, Yamaha Music CAST and various audio
Codecs such as MP3, WMA, WAV and MPEG4
AAC.
HDMI
Output
FPGA
Video
Decoder
ADV7802
system performance for the DSP-Z11 in both the
SD and HD domains. Therefore Yamaha decided
to use a dedicated i/p converter and a dedicated
video scaler. The i/p converter (480i/576i to
480p/576p) features a 10-bit processing Motion
Adaptive Deinterlacing Engine with Enhanced
Motion Detection Filter, Diagonal Processing and
2:2/2:3 Pull-Down Detection. The video scaler is
the Anchor Bay ABT1018, featuring a 10-bit
Precision Video Scaling™ engine that can
independently scale images horizontally and
vertically to achieve outstanding picture quality.
The result is a very stable picture with no jaggies
and no flicker with HD deinterlacing.
GUI
YGV619
USB/Music player
Video
Scaler
ABT1018
i/p
Converter
IP00C772
DSP-Z11
Analogue
Video
Output
xvYCC Colour Space
When you use the DSP-Z11’s HDMI outputs to
transmit video signals, you enjoy spectacular color
performance. One reason is that HDMI 1.3a uses
a new colour standard
called xvYCC, which
supports 1.8 times as
many colours as
previous HDTV signals.
This expanded range
of colours means that
HDTVs can display
images with colours
that are far more
natural and vivid than
ever before.
The Best-Balanced Video Processing
Configuration
After an extensive evaluation of video processing
configurations, Yamaha found that there is no
single chip solution that can achieve optimum
HDMI Video Upscaling (both analogue and digital inputs)
[ Output ]
1080p
1080p
720p
720p
1080i
1080i
480p/576p
480p/576p
480i/576i
480i/576i
Music on PC
Video
Encoder
ADV7342
Digital Video Block Diagram
[ Input ]
Internet radio
Upscaling
Downscaling
i/p Conversion
(=Deinterlacing)
Through
Full HD Signals
HD Signals
ED Signals
SD Signals
iPod
YDS-10
(Option dock)
Advanced YPAO Sound Optimisation
Auto Setup
Yamaha’s YPAO Sound Optimisation system
analyses the room acoustics and various system
factors, then makes
adjustments to provide
optimum sound quality.
It addition to the
previous adjustments
for speaker size,
distance and wiring,
plus equalisation and
level, this Advanced
YPAO has four new
capabilities. The first is measurement at multiple
locations (up to eight). It does not average the
results but performs analysis weighted in
accordance with the state of each location to
calculate compensation values. This results in a
larger “sweet spot” at the listening position. The
second is the use of parametric equalisation to
cancel the effects of standing waves, which
degrade low range response. The third is
speaker angle measurements to optimise
CINEMA DSP effects. And the fourth is an Easy
Starter feature that activates YPAO when the
microphone is inserted and the Enter button is
pressed, with information shown on the display.
40 Surround (33 DSP) Programmes
Compatible Decoder Straight
Dolby Digital
Dolby Digital EX
Dolby Digital Plus
Dolby Digital TrueHD
DTS Digital Surround
DTS 96/24
DTS-ES Matrix 6.1
DTS-ES Discrete 6.1
DTS-HD High Resolution Audio
DTS-HD Master Audio
Dolby Pro Logic
Dolby Pro Logic II Music
Dolby Pro Logic II Movie
Dolby Pro Logic II Game
Dolby Pro Logic IIx Music
Dolby Pro Logic IIx Movie
Dolby Pro Logic IIx Game
DTS Neo:6 Music
DTS Neo:6 Cinema
HiFi DSP Programmes 20
Hall in Munich A
Hall in Munich B
Hall in Frankfurt
CLASSICAL1
Hall in Stuttgart
Hall in Vienna
Hall in Amsterdam
Hall in USA A
Hall in USA B
Chamber
CLASSICAL2
Church in Tokyo
Church in Freiburg
Church in Royaumont
Village Gate
Village Vanguard
The Bottom Line
LIVE/CLUB
Cellar Club
The Roxy Theatre
Warehouse Loft
Arena
STEREO
11 Channel Stereo
CINEMA DSP Programmes 13
Standard
Spectacle
Sci-Fi
MOVIE
Adventure
Drama
Mono Movie
Sports
Music Video
Recital/Opera
ENTERTAINMENT
Pavilion
Disco
Action Game
Roleplaying Game
DSP Programme Total 33
THX Programmes
THX
Surround Program Total
7
Surround EX
Ultra2 Cinema
Cinema
Ultra2 Music
Music
Ultra2 Games
Games
40
YDS-10 Universal Dock
for iPod
The optional YDS-10 Universal
Dock lets you connect your
iPod to the
amplifier.
Oil-Damped Hidden Control Panel includes HDMI interface, USB port, Aux input terminals with S-Video and optical digital,
Zone 2/Zone 3/Zone 4 power on/off switches, rec out/Zone 2 selector, YPAO optimised microphone jack, and more.
3/4
iPod not included
NEW PRODUCT BULLETIN
DSP-Z11 11.2-Channel Digital Home Theatre Amplifier
Super-Versatile Zone Control Example (5.2-Channel Main Zone + 3 Other Zone)
PL
PR
CT
FL-B
FR-B
FL-A
FR-A
5.2Ch
SL
Zone 2
[140W x 2]
SBR
RPL
RPR
Other Zone
three-speaker installation environments, and a
Preamplifier Mode that permits the entire 11channel amplifier to be allotted for three-zone
use (main zone powered by an external amp).
Inputs
Super-Versatile Zone Control
The DSP-Z11 has extensive zone control
capabilities, which are too numerous to explain
here. The most important point is that the 11.2
channels can be assigned in a wide variety of
configurations to Main/Zone 2/Zone 3/Zone 4 The
presence, rear presence and EXTD (by surround
back amp) speaker terminals can be assigned to
each zone. It provides Intelligent Power Amplifier
Assignability (surround back amp assignment)
and Independent Zone Amplifier Assignment with
7.2-channel main zone playback.
Also important is that Zone 2 can accept
bitstream signals and also offers component
video output and upconversion of composite and
S-Video signals.
Some other convenient zone functions
include: a Party Mode that permits audio BGM
and video BGV play of the same input source in
the main room and other three zones with onebutton operation, a Zone OSD function that lets
you browse information about the songs or
PC/vTuner contents that are playing, Zone Mono
that provides compatibility with one-speaker or
HDMI*
USB*
Dock Terminal for YDS-10
Optical Digital (Fixed and Assignable)*
Coaxial Digital (Fixed and Assignable)
S-Video*
Analogue A/V / Audio*
Component Video (Fixed and Assignable)
Multi-Channel External Decoder
5
2
1
5
4
6
6/5
4
8ch
CINEMA DSP HD3
The DSP-Z11 introduces Yamaha’s latest digital
sound field processing refinement: CINEMA DSP
HD3. As amazing as the systems on the DSP-Z9
and RX-V3800 were, this system marks a further
evolution of CINEMA DSP. It utilises four Quad
CINEMA DSP engines and permits lossless
decoding of 192kHz signals, while providing 3D
processing that gives the sound field an extra
vertical dimension. In its full 11-channel
configuration setting it adds two presence and
two rear presence speakers, offering the
enjoyment of a completely new sound stage.
Volume at Normal Level
Large sounds can be output, so large
sounds are output as large sounds.
High
DRC OFF
Adaptive DRC
Small sounds like
whispers.
Sounds cannot be heard.
Low
Low
Input Level
High
Volume at Lower Level
Volume at Considerably Lower Level
The volume is slightly lowered, so the
maximum output is smaller.
When the volume has to be lowered more,
the maximum output becomes much smaller.
High
High
Low
Input Level
High
When DRC is off, whispered sounds are submerge
in the area where sounds cannot be heard.
Input Level
High
ff, the area where sounds
cannot be heard is fairly large.
THX Ultra2 Plus Surround Mode
THX Ultra2 Plus includes the newest
THX Loudness Plus technology. It lets
you enjoy five THX programmes in the
optimum condition, delivering a more accurate
listening experience at any volume level.
Adaptive DRC
Adaptive DRC (Dynamic Range Control) is a new
volume control technology that is effective for
low-volume listening, such as at night or with
headphones. It applies DRC processing to
eliminate the volume differences between loud
Others
“d-cinema” is the slogan of Yamaha A/V products and
technology, reflecting our focus on digital technology
and our leadership in creating and refining digital home theatre.
Effect of Adaptive DRC
Low
* Including front panel terminals.
• Banana-plug compatible speaker terminals are not
available in some areas.
DSP board
commercials and ordinary programming and to
take into account our ears’ loss of sensitivity as
volume decreases. The compensation is
performed automatically, so all dialogue is heard
clearly even at low levels, and there are no
sudden loud bursts of sound.
Output Level
Speaker Terminals
utput Level
Main Zone
Outputs
Versatile Zone Control
Zone 4
[50W x 2]
SBL
Surround Realism
On-Screen Display with GUI
An on-screen GUI (Graphical User Interface)
display makes operating the amplifier easy and
intuitive. It is compatible with
iPod, internet radio, PC and
USB displays. Six display
languages can be selected:
English, Spanish, French,
German, Russian and
Japanese.
Zone 3
[50W x 2]
SR
Output Level
Main Remote Unit
The remote unit has
shock-sensor
illuminated keys for
easy operation in dim
lighting — just pick it
up and the keys light
Direct-access (macroup. It features an
command, learning and
improved key layout
preset capable) remote
and an LCD window:
unit with shock sensor
the layout setup
illuminated buttons
buttons (zone selector, (top) and simplified remote unit
(bottom)
macro mode, remote
ID, remote setup and input select) are grouped
around the LCD window. It also provides easy
access to the System Memory.
HDMI
Optical Digital (Fixed and Assignable)
Coaxial Digital (Fixed and Assignable)
Analogue A/V / Audio
S-Video
Component Video Monitor
S-Video / Composite Monitor
Speaker (Without Subwoofer)
Subwoofer
Zone 2 Video Out (Component/Composite)
Zone 2 Audio Out (Optical/Coaxial)
Zone 3 Audio Out
Zone 4 Audio Out
Remote In/Out
Trigger Out
RS-232C
2
1
1
2/2
2
2
1/1
11ch / 13 ter.
2
1/2
1/1
1
1
2/2
2
1
Improved Compressed Music Enhancer
This popular feature restores the sound of the
original music from digitally compressed formats
such as MP3. The DSP-Z11
offers an improved version that
processes multi-channel signals
with a DSP algorithm, so all channels (rather
than just two) are enhanced, for more accurate
reproduction and a more expansive sound.
Main Specifications
Maximum Output Power per Channel [for Europe]
(4 ohms Load/8 ohms Position, 1 kHz, 0.7% THD)
Front Channels
240 W + 240 W
Centre Channel
240 W
Surround Channels
240 W + 240 W
Surround Back Channels
240 W + 240 W
Presence Channels
90 W + 90 W
Rear Presence Channels
90 W + 90 W
Min. RMS Output Power
(8 ohms, 20 Hz–20 kHz, 0.04% THD)
Front Channels
140 W + 140 W
Centre Channel
140 W
Surround Channels
140 W + 140 W
Surround Back Channels
140 W + 140 W
Presence Channels
50 W + 50 W
Rear Presence Channels
50 W + 50 W
Dynamic Power (8/6/4/2 ohms) 185/230/290/385 W
Damping Factor (8 ohms)
150 (1 kHz, speaker A)
Total Harmonic Distortion (Sp out Front L/R)
(CD, etc.; 20 Hz–20 kHz)
0.02% (70 W/8 ohms)
Signal-to-Noise Ratio (CD, etc.) 100 dB (250 mV)
Dimensions (W x H x D)
435 x 210 x 497 mm
Weight
34 kg
Black finish available in
some areas.
• iPod is a trademark of Apple Computer, Inc., registered in the U.S.
and other countries. • HDMI, the HDMI logo and High-Definition
Multimedia Interface are trademarks or registered trademarks of
HDMI Licensing LLC. • Burr-Brown products are trademarks of
Texas Instruments, Inc. • THX, the THX logo and Ultra2 Plus are
trademarks of THX Ltd. • Powered by ABT™ is a trademark of
Anchor Bay Technologies Inc. • Dolby and the double-D symbol are
registered trademarks of Dolby Laboratories. • DTS is a registered
trademark and the DTS logos, Symbols, DTS-HD and DTS-HD
Master Audio are trademark of DTS, Inc. • Product designs and
specifications are subject to change without notice.
Yamaha Electronics UK Ltd. 200 Rickmansworth Road, Watford, Herts, WD18 7GQ. Tel:01923233166 www.yamaha-uk.com
4/4
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