3
AV RECEIVERS REFERENCE GUIDE
Audio Technologies
Audio T
echnologies
Video T
echnologies
Audio Formats & Licenses
Sophisticated Surround System
Connectivity
Network Features
Advanced Control
Multi-Channel Stereophonic Philosophy
1131
831
In the same way as the ideal stereo sound reproduction, multi-
channel sound can faithfully reproduce the master sound by
equalising the response of all channels. With Pioneer’s original
Multi-Channel Stereophonic Philosophy as the core, versatile
technologies and know-how have been lavishly incorporated to
realise matchless high-quality sound and sophisticated
performance.
Direct Energy Design
1131
831
531
Every inch of the chassis has been devised to create quality
sound, such as shorter transmission path for the power
amplifier block, extremely clean grounding, a rigid structure
with improved damping, and the shape of the wiring. The
discrete amplifiers of VSX-1131/VSX-831 feature 384 kHz/32-bit
AKM DAC* for all channels, inheriting the Direct Energy Design
of the high-end models which allow high-power simultaneous
multi-channel drive. In combination with the MCACC auto
room tuning, you can enjoy all the emotions intended for the
playing piece.
* Except VSX-531
Select Parts for Clear and Open Sound
1131
831
High-grade parts are used to bring out the best from the Direct
Energy Design. The polymer multi-layer MU capacitors (PML
MU) co-developed with Rubycon Corporation provide clear and
open high-range sound. The audio-grade power transformer
realises noise-free signal transmission.
MULTI-CHANNEL STEREOPHONIC PHILOSOPHY
Pioneer’s 3-step technology in reproducing studio master sound for
the ideal multi-channel reproduction—a compilation of exclusive
philosophy and various technologies
Construction for superior sound, featuring Direct Energy
Design and quality parts including AKM DAC
Step 1
MCACC based on professional studio monitoring methods,
and exclusive Phase Control technology
Step 2
Quality sound tuning full of emotion by engineers approved
by AIR Studios
Step 3
Faithful reproduction of the original master
Capacitors (VSX-1131)
PML MU Capacitors (VSX-1131)
Power Transformer (VSX-1131)
