Yamaha RX-Z9 Product Catalog page 12

Yamaha presents advanced solutions for
maximum home theatre enjoyment.
Yamaha has taken home theatre audio technologies to new levels of achievement.
Long world-renowned for our CINEMA DSP surround sound technology.
Here's a brief introduction to our major technologies.
Highest Sound Quality
Highest Sound Quality
Yamaha has a genuine commitment to providing
absolutely the finest sound quality possible in every
component we create. With over a century of
experience in sound production (we made our first
reed organ in 1887) and our status as a world
leader in acoustic and electronic musical
instruments, we are passionate about creating and
reproducing sound in the most beautiful and
natural way. Over the years, with each new series
of receivers, we have improved and refined audio
performance, and Yamaha Digital Home Theatre
Receivers maintain this tradition with an impressive
array of technology and features.
Digital ToP-ART Concept
Digital ToP-ART (Total
Purity Audio Reproduction
Technology) is a Yamaha
product development philosophy that combines
advanced digital engineering and circuit design to
maximise audio signal purity. It is used in three
High-Definition CINEMA DSP Circuitry
DIR SEL
Digital
Input
Decoder
96 kHz/
24-Bit
Multi (8)-
ADC
Channel
Minimal
Input
Analogue
RX-Z9 Signal Flow
Processing
Selector
i.LINK
12
Highest Picture Quality
sections of the receiver, the High Performance Digital
Circuitry and High Current Amplification (explained
below) and the High Definition CINEMA DSP circuitry
(explained on p.16), each of which employs the
world's highest grade parts and most sophisticated
LSIs. Digital ToP-ART enables Yamaha receivers to
deliver superb sound quality and bring out the full
potential of Yamaha's amazing CINEMA DSP
technology.
High Performance Digital Circuitry (RX-Z9)
This section exemplifies the Digital
ToP-ART concept of maximising the quality of the
digital circuitry while minimising analogue circuitry,
and also maintains a straight and logical circuit
layout for optimum signal purity. It includes a variety
of sophisticated technology, beginning with Burr-
Brown 192kHz/24-bit digital-to-analogue converters
for all channels with DSD (Direct Stream Digital)
compatibility. Accurate-Touch Volume Control LSIs
(Yamaha YAC520) are also used for all channels. The
Direct Stereo
SEL
SEL
CINEMA DSP YPAO
SEL
and HiFi DSP (Yamaha
(YSS-930 x 4) Parametric
Room Acoustic
SEL
Optimiser)
(YSS-930 x 4)
SEL
192 kHz/24-Bit
DACs for
11 Channels
Advanced Facilities
High Performance High Current
Digital Circuitry Amplification
• Front L
DAC VOL
• Front R
• Centre
DAC VOL
• Surround L
DAC VOL
• Surround R
• Surround Back L
DAC VOL
• Surround Back R
• Presence L
DAC VOL
• Presence R
• Subwoofer L
DAC VOL
• Subwoofer R
Accurate Touch Volume Control
(-80—+16.5dB)
YAC-520 LSIs for 11 Channels
Best Surround Realism
digital bass and treble tone controls have turnover
frequencies for the front L/R and centre channels.
Eight-channel analogue input signals are processed
by 96kHz A/D conversion for highest quality. All
circuitry is on a four-layer processing board in a
fully shielded cabinet for reduced digital
interference.
High Current Amplification
Although power rating is often the first thing
people look at in a receiver, high power output does
not necessarily mean good sound. High current
level is a much more important factor, so Yamaha
developed the High Current Amplification system,
which overcomes two problems common to
ordinary receivers. The first is a difference in
voltage between the power supply and amplifier
circuits caused by current fluctuations. This was
solved by using custom-made, high-grade block
electrolytic capacitors and a copper grip for one-
point grounding. Another current drop is generally
seen between the amplifier circuit and the speaker
terminals, caused by the cables, speaker output
relays, copper circuit boards, and so on. To avoid
this problem, we used an extra-large, low-
impedance toroidal transformer and gold-plated
speaker relay contacts. As a result, Yamaha
receivers achieve low impedance, high current
power from input (power supply circuit) to output
(speaker terminals). This drives the speakers much
more smoothly and dynamically, for better sound
from all sources, including 2-channel audio.
Choice of Signal Paths for Optimum Quality
Yamaha receivers give you a choice of specialised
signal paths, ensuring that you can obtain the