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Rx-v740rds new product bulletin – Yamaha RX-V740RDS User Manual

Page 5

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RX-V740RDS

NEW PRODUCT BULLETIN

5/10 (G/B)

designed for maximum vibration

damping.

Anti-Resonance Aluminium-Extruded

Heat Sink

The large, anti-resonance, aluminium-

extruded heat sink is located on the base

frame with the power amplifier circuit

boards to prevent interference with the

preamplifier and digital processing

sections. The power block is equipped

with a fan, but it is only used for extreme

heat build-up and is not activated during

normal operation, preventing the

occurrence of even the slightest

unwanted noise.

Wide-Range Frequency Response for

DVD-Audio and SACD

With an extremely wide frequency range

of 10 to 100,000Hz, this receiver is

capable of delivering the full potential of

the new digital audio sources DVD-Audio

and SACD.

Optimum Space Utilization

The use of highly integrated LSIs allows

an interior design that maximizes power

and sound quality by positioning all the

digital processors and related circuitry in

one small area. This leaves most of the

space open for the power amplifier

components: transformers, capacitors,

heat sink and so on. This means that

these parts can be much larger than

usual for greater power, that they can be

separated for minimum chance of

interference, and that circuits can be

arranged in straight lines for maximum

signal purity. For example, the tone

control circuit layout is straighter and

shorter than ever.

Finest Parts Used Throughout

In order to realize the goals of massive

power and superlative sound quality,

Yamaha technicians completely re-

evaluated all the parts used in previous

receivers. As a result, many were

replaced with more expensive or custom-

designed units.

Extra-Large Custom-Made Block

Electrolytic Capacitors

Developed specifically for the RX-

V740RDS, the 12,000µF/71V block

electrolytic capacitors use low-

magnification foil and are exceptionally

high quality.

Direct Signal Path Speaker Relays with

Gold-Plated Crossover Connection and

Shielding

Speaker switching is accomplished by

relays right in front of the speaker

terminals, rather than at the switch

position. This results in a shorter signal

path and minimum output impedance.

High Performance Myca Capacitors and

Film Capacitors

At this level of sound quality, even these

small parts make a difference. The high

precision FE mica and metallic mylar film

capacitors use polypropylene material

and are the highest performance types on

the market.

Extra-Large Low-Impedance

Transformer

The large 4.8 kg low-impedance

transformer is an important factor in the

RX-V740RDS’s extremely stable power

supply.

Thick PC Board Wiring with 1.6mm

φ

Copper Jumper Cables

The audio signal is routed within the

amplifier through exceptionally thick,

top quality wire, ensuring that signal

purity is maintained.

RX-V740RDS Interior View and Signal Flow ( )

RX-740RDS High Quality Parts