Pioneer VSA-AX10Ai-S Brochure & Specs - Page 4

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Highest quality equipment

STEP 1

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 the VSA-AX10Ai-S. Highly stable, solid-grade materials create the ultra rigid construction for the highest sound clarity. In addition, top-performance components like

A.D.E. MOSFET are the secret to high-quality amplifier design. Finally, high-end advanced technology, like i.LINK, is responsible for high-quality digital audio transfers and advanced digital processing.

It is clear that the VSA-AX10Ai-S was designed with a quest for pure sound perfection.

Ultra rigid construction

Innovative frame design concept and concentrated direct

construction design for superior support

This revolutionary 3-D space frame construction reinforces the physical strength of

the amplifiers. 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 10 kg

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.

Stable cast iron base for ultimate chassis rigidity

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.

Unwanted vibrations reduced thanks to Transformer Stabiliser

To offer even more stability and rigid support for the 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.

3-D space frame with direct

construction design:

1) Power supply 2) Video block

3) Amplifier 4) Audio block

5) i.LINK block

6) Digital block

Cast iron base and 3-D space frame construction

High-quality amplifier design

7-channel Advanced Direct Energy MOSFET for solid high

performance audio

Pioneer's exclusive Advanced Direct Energy (A.D.E.) MOSFET produces an

amazingly efficient, high-end sound quality with an impressive 170 watts (DIN) of

equally amplified power for each channel, to ensure consistent sound quality for

AC/DC isolated

amplifier module

multi-channel applications. This highly advanced circuitry is designed to offer

high stability combined with low energy loss and ultra linear amplification. 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 of the bias circuitry, regulates the drift of the bias point and minimises

power imbalances that can cause distortion in the sound stage.

7-channel symmetrical power train design for precise sound imaging

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.

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

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. As no cooling fan is needed, there is less

resonance compared to general cooling systems, and the sound remains transparent to the source input

signal.

High regulation power transformer for stable power supply

Pioneer has developed a state-of-the-art large power transformer, weighing in at 10 kg, to guarantee a

stable and superabundant power supply for each individual circuit. Designed for audio, this power

supply avoids S/N ratio degradation caused by any internal energy loss and magnetic leakage, and

reduces interference caused by vibration. Even at maximum volume, it delivers a constantly strong

current with low impedance.

Large capacitors for clean and stable power at all times

The VSA-AX10Ai-S uses two 33,000µF large capacitors, designed exclusively for audio, for extra stability

and instant response to large power swings. The low loss thick copper bus-bar, attached to the

capacitors, maximises the power transmission. The huge capacitors and bus-bar combined ensure clean

and smooth power delivery at all times, even during sudden surges and continuous high volume

demands.

Advanced Direct

Energy MOSFET

Amplifier section

with symmetrical

power train design

Chimney-shaped

large heat sink

Large power supply

transformer

Large electrolytic

capacitors