Pioneer S-V410 Datenblatt PDF herunterladen (Seite 11)

A/V AMPLIFIERS & RECEIVERS

For more details on features and technology, please visit www.pioneer.co.uk

HIGHEST QUALITY EQUIPMENT

The revolutionary 3-D space frame construction reinforces the physical strength of the amplifiers/receivers. Unlike traditional 2-D

chassis designs, each part is fixed to the frame from various angles, so the unit has the strength to support the heavy transformer,

without any distortion. The double-layered chassis ensures an extremely strong and rigid base for the 3-D frames. In addition, the

chassis is copper-plated* to suppress signal interference between circuits and reduce ground impedance. This 3-D space frame

works simultaneously with the concentrated direct construction to further minimise signal interference as well as reduce the signal

path. Each circuit is separated — allowing a more direct and extremely pure signal route — which results in an open and fresh sound.

* VSA-AX10Ai-S only

Based on a tri-concept philosophy combining ultra rigid construction, the best-in-class amplifier design and advanced digital processing, only the most select parts as

well as cutting-edge Pioneer technology are found in Pioneer’s high-end A/V amplifier and receivers. It is clear that these high-class components were designed with

a quest for pure sound perfection.

ULTRA RIGID CONSTRUCTION

Combined with the 3-D space frame, the stable cast iron base realises heretofore

unknown chassis rigidity. The heavy 4 kg cast iron base, made by TAOC — known as the

quality audiophile accessory brand — overwhelmingly enhances the strength and

stability of the chassis. And it serves to support and intercept external vibration thanks

to its specially designed material — 10 times more anti-resonant than steel. The base

contacts the frame at 15 points with the newly developed, patent-pending pivot-shape

for crystal-clear and even deeper bass sound. The same concept is applicable to the

VSX-AX5Ai-S, with cast iron TAOC insulators.

❚ Stable cast iron base for ultimate chassis rigidity

(VSA-AX10Ai, VSX-AX5Ai)

To offer even more stability and rigid support for the VSA-AX10Ai-S’s heavy 10 kg transformer, an extra 2.0 mm thick steel stabiliser is attached to the transformer

frame. This carefully designed construction was implemented after thorough simulation by advanced CAD (Computer Aided Design) technology. The chassis is prevented

from causing unwanted vibration during sound reproduction, ensuring maximum transparency of delicate audio signals. The VSX-AX5Ai-S and VSX-2014i-S also feature

thick steel plates under the transformers to stabilise vibrations.

❚ Unwanted vibrations reduced thanks to Transformer Stabiliser (VSA-AX10Ai, VSX-AX5Ai, VSX-2014i)

VSA-AX10Ai: 3-D space frame with direct construction design

1) Power supply 2) Video block 3) Power Amplifier

4) Audio block 5) i.LINK block 6) Digital block

One of the secrets to these amplifier/receivers is Pioneer’s exclusive Advanced Direct Energy (A.D.E.) MOSFET. It produces an

amazingly efficient, high-end sound quality with equally amplified power for each channel, to ensure consistent sound quality

for multi-channel applications. This highly advanced circuitry is designed to offer high stability and ultra-linear amplification

combined with low energy loss. A new AC/DC isolated amplifier module — designed especially to optimise the A.D.E. MOSFET

performance under any condition — combined with the built-in temperature adjustment, minimises power imbalances that can

cause distortion in the sound stage.

HIGH-QUALITY AMPLIFIER DESIGN

❚ 7-channel Advanced Direct Energy MOSFET for solid high performance audio (VSA-AX10Ai, VSX-AX5Ai, VSX-2014i, VSX-1014)

Advanced Direct

Energy MOSFET

AC/DC isolated

amplifier module

To balance electrical, physical and magnetic elements

between the 7 channels for the most precise sound stage

reproduction, Pioneer designed each power amplifier

symmetrically on each side of the heat sink. This

‘symmetrical power train’ creates a uniform sound field for

all channels.

VSA-AX10Ai:

Amplifier section

with symmetrical

power train design

❚ 7-channel symmetrical power train design for precise sound imaging

(VSA-AX10Ai, VSX-AX5Ai, VSX-2014i, VSX-1014)

Since this amplifier incorporates 7-channel, high power

units, it generates a huge amount of energy. The chimney-

shaped heat sink acts as a natural cooling system, releasing

excess heat from the power elements which could otherwise

adversely affect operation. There is less resonance compared

to general cooling systems, and the sound remains

transparent to the source input signal.

❚ Innovative frame design concept and concentrated direct construction design for superior support (VSA-AX10Ai, VSX-AX5Ai, VSX-2014i, VSX-1014)

Chimney-shaped

large heat sink

❚ Chimney-shaped heat sink for efficient heat dissipation and low resonance

(VSA-AX10Ai)

Cast iron base and 3-D space frame construction

Temperature is the key factor for ideal Total Harmonic Distortion specifications, since heat directly affects the amount of bias required by an output transistor to

reproduce sound.

Pioneer’s thermal compensation transistor provides temperature feedback to the bias circuit, ensuring that the correct amount of bias is applied to the transistors,

regardless of temperature. Moreover, to enhance heat dissipation, the output transistor’s thermal compensation circuits are all mounted to the same portion of the heat

sink. This unique approach is similar to the technology used for the Advanced Direct Energy MOSFET power device.

❚ High sound quality by PHA (Pioneer Hybrid Amplification) (VSX-D814, VSX-D714, VSX-D514)