Integrated Amplifier
I-0
Esoteric MSW* Pure Class D Mono Block
Power Amplifier
*MSW= Master Sound Works
• Introducing the design know-how of
professional studio-use power amplifiers
The power amplifier is at the core of our integrated amplifier, the
I-05.Esoteric has introduced techniques collected through the
trials of designing professional studio-use power amplifiers into
the power amplifier sections of I-05. The power amplifier of the
I-05 continuously balances outstanding drive power along with
natural tones and conveys the essence of a master sound
recording regardless of the size and efficiency of the speaker
combinations being used.
• Esoteric's MSW Pure Class D power
amplifier with dual mono architecture
The I-05 is equipped with a
MSW Pure Class D power
amplifier that uses the latest
high-speed MOS-FET devices
in a 2-parallel configuration to
achieve superior speaker drive
performance. This circuit uses
separate power amplifier blocks
mounted in a dual mono
architecture. This allows each
channel to obtain a high
practical-use maximum output of 190W+190W (6Ω).
• Linear (analog) power circuit supplying strong driving
performance
The power circuit is equipped
with a high capacity custom
EI core transformer that
generates tenacious yet silky
sound quality. The smoothing
condenser achieves a great
balance between high capac-
ity and low impedance by
means of a parallel connection
of four circuits to each channel.
Also, strategic placement of the power amplifier on the board
shortens the signal path, which means a faster power supply.
Furthermore, the high speed Schottky barrier diode is used for its low
noise when rectifying. The linear power source, which boasts low
noise and abundant power, contributes greatly to the unit's excellent
sound quality.
*
The power source of the amplifier is the heart that determines the performance and
tonal quality of the amplifier. The I-05 satisfies both pure and warm tones along with
strong driving performance by combining the traditional linear (analog) power
source and the latest amplifier stage which easily drives even low-efficient
speakers. This might even give the listener a feeling that there are no speakers at all.
Full-balance Designed Dual-mono Preamplifier
• Full-balance preamplifier circuit thoroughly suppressing noise
The preamplifier is carefully designed
carrying over the award-winning
technologies introduced into the
C-03. The application of a fully-
balanced configuration reduces
noise to the limit. The mounting
point is located at the rearmost
area of the chassis, which is
closest to the input terminal.
• Esoteric-QVCS
(QVCS = Quad Volume Control System)
By turning the volume knob, the variable volume gain of all four
circuits – right and left channels, positive and negative powers – are
activated by control signals that are transmitted to the preamplifier. In
this way, the system keeps left and right audio signals independent
from each other and from positive to negative. The benefit being that
sounds are heard clearly with good channel separation and accurate
phase characteristics. Furthermore, the deletion of a cable from the
audio board to the volume device radically shortens the audio signal
path and thus stops sound deterioration. The volume device uses
the New JRC “MUSES,” tried-and-trusted for its sound quality.
• Low noise operation capable of reproducing minute dynamics
The control board for the entire Esoteric-QVCS is physically
separated from the preamplifier board. A measure is being taken
here also for downright low noise operation, which is to completely
stop the control microcomputer, unless the operation launch is
accepted.
• Functions utilized by the high grade preamplifier
The preamplifier is equipped with a PRE OUT terminal system,
accepts biamp configuration and also serves as a fully-balanced
dual-mono preamplifier so as to be compatible to future system
upgrades. The headphone terminal is available for personal
listening using your favorite pair of high-quality headphones.
Sufficient input terminals
(
RCA x 3, PHONO x 1, and XLR x 1
)
Machined copper alloy RCA terminals excellent in
conductivity and durability
Fine-tuning of gain levels available for each of
the right and left channels, balance and inputs
MM/MC PHONO input
AV through function useful in the system environment where two channels,
for AV surround coexist.
Five types of volume curve options
(
*
)
High grade aluminum remote controller for
the Esoteric SACD/CD player attached
These options allow you to choose an ideal volume curve from five presets to match
with the efficiency of your speakers. These options will also offer an ideal operational feel
you prefer to drive any types of speakers of different sensitivity.
P R O U D L Y M A D E I N T O K Y O
Nothing to add. Nothing to delete.
Luxury is to enjoy the beauty as it really is.
Here are the ultimate audio technologies for music reproduction.
Master Sound Works – Esoteric’s fundamental philosophy – conveys every musical
impression captured in original master recordings directly to ears of the listeners.
This inexhaustible pursuit has given birth to the I-05, Esoteric’s new integrated amplifier.
Preceded by the I-03, in which the technologies and know-how were established
in a separate type amplifier bear fruit, the I-05’s slim chassis contains the essence
of the I-03’s design topology which is rugged yet smooth.
With the I-05, your favorite recordings will sound enhanced – as if you are hearing
the perfect pure beauty of music you have never experienced before.
