Pioneer SC-LX901 Product Reference Manual page 30

Construction
Advanced Direct Construction
LX901 LX801 LX701 LX502
Less is more in circuitry design. Advanced Direct Construction
allows the shortest and simplest signal paths—from input to
output, circuit block by circuit block—to reduce distortion that
can be caused by transmission loss, and to improve sonic clarity.
Internal View (SC-LX901)
3D Space Frame Construction
LX901 LX801
The 3D Space Frame Construction is developed to clearly define
the mechanical grounding of the chassis and make the structure
strong enough to support heavy weight. Perfected by repeated
CAE strength analysis and tests, this technology allows each part
to deliver maximum performance. Interference is also reduced by
separating and insulating the power supply, amp, analogue circuit,
digital circuit and video sections from one another.
The AV receivers come with this Advanced 3D Space Frame
structure, featuring precise framework design, separating the
power supply block, and isolating the analogue video/audio and
digital functional blocks into specific compartments. This reduces
interference by flat cables between the blocks and improves the
operating characteristics to accurately reproduce even the most
delicate signals.
Rigid Trans-Stabilizer
LX901 LX801 LX701
The rigid trans-stabilizer acoustically insulates the transformer
and eliminates unwanted vibration, enhancing sound clarity.
Rigid Trans-Stabilizer
Anti-Standing Wave Insulator
LX901 LX801 LX701 LX502
The Anti-Standing Wave Insulator has been developed through
repeated listening tests, featuring a special form with no parallel
sides inside to prevent cavity resonance. This makes the sound
localisation, tone, and scale clearer, while also enhancing the
seamless connection between the channels, and the response to
quick sound. The insulator enriches the realistic spatial
description for movies, and the space representation of a concert
hall for music sources.
Separated Pre and Power Amplifiers Blocks
LX901 LX801 LX701
Being compact and highly efficient, the Direct Energy HD amplifier
has allowed remarkably smaller heat sink and greater flexibility in
circuit design and layout, and the ideal separate structure with
independent pre and power amplifier blocks is realised.
Additionally, the power supply for digital and analogue circuits
has been isolated to provide clean power, significantly
contributing to clear signal transmission which is the basis for
high-quality sound.
Pre-amplifier Block
Clean Grounding with Insulated Dual Chassis
LX901 LX801 LX701
Steel plates shield the power amplifier block to eliminate
unwanted noise caused by mutual interference, while Pioneer-
original Insulated Dual Chassis connects the power amplifier's
chassis to the main chassis via special insulators. The pre and
power amplifier blocks are electrically separated, enabling the
optimal ground design for each block. With thorough clean
grounding and elimination of interference between the circuits
and load changes, the sound quality and performance equivalent
to separate amplifiers combined within a single chassis is
achieved.
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AV RECEIVERS REFERENCE GUIDE
Power Amplifier Block
Insulators