Datasheet

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Pioneer has incorporated two new features to ensure that sound from your SACD sources is as true to the original as possible. In order to make the conversion from
2-channel DSD to PCM, a sampling frequency of 176.4 kHz/32-bit is used. The resulting signal is virtually indistinguishable from the original. For multi-channel SACD,
the sampling frequency is 88.2 kHz. SACD reproduction now also benefits from the new alternative SACD gain setting. The gain in the digital domain (for SACD) is
increased by 6 dB, resulting in a higher dynamic range.
ADVANCED PROCESSING IN THE DIGITAL DOMAIN
❚ Enhanced SACD sound quality (VSA-AX10Ai, VSX-AX5Ai, VSX-2014i)
The VSA-AX10Ai-S uses twin 32-bit floating-point processors SHARC Melody Ultra and 48-bit processing Motorola DSP engines, such as those
widely used in pro audio equipment. Pioneer engineers created the most advanced digital processing module, the Ultra Digital Core Engine,
optimised for the DSPs. It features a short signal path thanks to the latest 6-layered circuitry board design and an exclusive processing
algorithm. The Ultra Digital Core Engine processes the data with extreme precision, and delivers more powerful multi-channel sound decoding
and processing than ever before. This engine can handle all the latest surround formats, and makes high-definition-quality 96 kHz/24-bit
processing possible for Dolby Pro Logic IIx, THX and DTS NEO:6.
❚ New Ultra Digital Core Engine for more powerful signal processing (VSA-AX10Ai)
Pioneer has mounted highly accurate 192 kHz/24-bit A/D
converters on all eight channels individually to precisely
reproduce DVD-Audio and SACD sound sources when using
players with 6-channel analogue outputs. For two-channel
analogue sources, four A/D converters are used for each
channel for further precise conversion. This ensures truly
superb 2-channel stereo reproduction. Of course, bypassing all
A/D, DSP and subsequent D/A conversion by directly routeing
the analogue input to the power amplifier is equally possible.
❚ All-channel 192 kHz/24-bit A/D converters for precise
analogue source reproduction (VSA-AX10Ai)
Exclusive for Pioneer, specially selected top-of-the-line Burr-Brown
192 kHz/24-bit digital-to-analogue converters drive each of the eight
channels independently. Sound is accurately reproduced, true to the
original signal, with a remarkable signal-to-noise ratio. These are the best
multi-bit type D/A converters for high resolution, strong and stable sound,
with a perfect signal from input to output. The VSX-AX5Ai-S, VSX-2014i-S
and VSX-1014-S/K feature high-quality Delta Sigma-type D/A converters
with low jitter design, realised through Pioneer’s unique Switched Capacitor Filter.
❚ High-end 192 kHz/24-bit D/A converters for solid sound (VSA-AX10Ai,
VSX-AX5Ai, VSX-2014i, VSX-1014, VSX-D814, VSX-D714, VSX-D514)
Pioneer has developed a state-of-the-art large power
transformer — for the VSA-AX10Ai-S, weighing in at 10 kg —
to guarantee a stable and super-abundant power supply.
There’s no S/N ratio degradation caused by internal energy
loss, or magnetic leakage, and interference caused by
vibration is reduced. You get constant strong power even at
maximum volume!
For extra stability and instant response to large power
swings, two 33,000µF* large capacitors, designed exclusively
for audio, are used. 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.
* VSX-AX5Ai: 27,000µF
Large electrolytic
capacitors
❚ Large capacitors for clean and stable power at all times
(VSA-AX10Ai, VSX-AX5Ai)
Large power supply
transformer
(VSA-AX10Ai)
❚ High regulation power transformer for stable power supply
(VSA-AX10Ai, VSX-AX5Ai, VSX-2014i, VSX-1014)
Ultra Digital Core Engine
Burr-Brown
PCM1704 DAC
❚ WORLD’S FIRST WINDOWS MEDIA™ AUDIO 9 PROFESSIONAL (VSA-AX10Ai)
It’s no understatement that the VSA-AX10Ai-S is completely up-to-the-minute with the latest surround formats. This amplifier is the first in the
world to incorporate a WMA9 Pro decoder, the first digital surround sound coding technology for the Web — developed by Microsoft. When
connected to a multi-channel-equipped PC, you are able to enjoy high resolution stereo or 5.1-channel surround audio at 128 k – 768 Kbps
compression rates. At any given bit rate, 5-channel WMA9 Pro will bring you higher fidelity than other sound compression algorithms thanks to the latest audio codec
technology.