Esoteric I-03 Manual de Usario

Esoteric receptor I-03

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Integrated Amplifier I - 0 3

Highly rigid, chassis construction that

inherits the K series engineering concept

*MSW= Master Sound Works

High sound quality structure from a multiple chassis design

Each circuit block is placed in a dedicated compartment. The

compartments are assembled three-dimensionally to minimize

interference between circuits and use the shortest signal paths.

The internal chassis is divided into ﬁve parts, with two separate

preampliﬁer boards for each channel mounted in dedicated

compartments closest to the rear connectors. This design

keeps the audio signal path short and direct. Two Esoteric MSW

power ampliﬁer blocks are connected from the preampliﬁer

using the shortest signal path. These blocks are assembled in

dedicated compartments on both sides of the chassis and

mounted via aluminum plates on both side panels. Using the

side panels as heat sinks, this integrated ampliﬁer efﬁciently

discharges heat without compromising its sleek form.

High-capacity power transformer and power section layout

for highest quality sound

The heavy-duty class, high-capacity power transformer is

installed in the center and ﬁxed with a 5-mm thick steel base

plate on the bottom chassis. Also, the entire body is supported

at three points on Esoteric original pinpoint feet* to reduce

vibration and maximize high rigidity. Each component of this

integrated ampliﬁer incorporates the housing design and

know-how applied for the K series (Super Audio CD/CD Player

K-01 and K-03). Esoteric has meticulously pursued high sound

quality and functionality up to the point of the placement of each

component. Esoteric has paid a lot of attention to details, even

in the unseen inner portions of this amazingly heavyweight, 31

kg (68.3 lbs.) integrated ampliﬁer model I-03.

* Patent 4075477

Bold and delicately sleek round body form

Like the K series, this integrated

ampliﬁer has inherited the round form

design of Esoteric ﬂagship models.

Thick aluminum material has been used

for the front, top, side panels and front

corners. The preampliﬁer volume

control and input selector have been

machined from large-size aluminum

blocks. Precisely tooled, rounded ergonomic design offer both a

sleek appearance combined with an ideal balance of opera-

tional control.

ESOTERIC COMPANY

1-47 Ochiai, Tama-shi, Tokyo 206-8530, Japan

Fax: (042)356-9240

www.esoteric.jp

www.esoteric.teac.com/

Please note that Esoteric products are available at limited distributors in respective countries．

ESOTERIC is a trademark of TEAC Corporation, registered in the U.S. and other countries. Other company names, product name and logos are the trademarks or 

registered trademarks of their respective owners.

property rights of TEAC Corporation．These materials shall not directly or indirectly be published, reproduced, modified or distributed in any medium．

Design and specifications are subject to change without notice．

PRINTED IN JAPAN 0511T03•TECD-0133

Speciﬁcations

Speaker Outputs

Rated output power 180 W + 180 W (1 kHz, 8 Ω)

240 W + 240 W (1 kHz, 6 Ω)

300 W + 300 W (1 kHz, 4 Ω)

Maximum output power 250 W + 250 W (1 kHz, 0.1 %, 8 Ω)

320 W + 320 W (1 kHz, 0.1 %, 6 Ω)

380 W + 380 W (1 kHz, 0.1 %, 4 Ω)

Total harmonic distortion 0.03 % (1 kHz, 6 Ω)

Frequency response 5 Hz - 70 kHz (+1 dB, –3 dB, 6 Ω)

Signal-to-noise ratio (S/N) 110 dB (JEITA)

Minimum required impedance

4 Ω

Speaker output terminals Binding posts x 1 stereo

Analog audio inputs

Jacks RCA jacks x 3 stereo

RCA2: can be connected to an AV-amplifer’s pre-output

RCA3: can be switched among LINE, PHONO MM and PHONO MC

XLR jacks x 2 stereo

Input impedance LINE: 100 kΩ / PHONO MM: 47 kΩ / PHONO MC: 100 Ω

Analog audio outputs

Jacks RCA jacks x 1 stereo

Output impedance 470 Ω

General

Power supply AC 230V 50Hz / AC 120V 60Hz / AC 220V 60Hz

Power consumption 280 W

External dimensions (W x H x D) 445 x 162 x 468 mm (17 1/2” x 6 3/8” x 18 3/8” )

( including protrusions )

Weight 31 kg (68 lb)

- This product is available in three different power supply variations shown

in the chart above. Make sure that the voltage shown on the rear panel

matches the AC line voltage in your area.

- The shape of the AC inlet and plug of the supplied power cord depends

on the voltage rating and destination country.

Esoteric MSW* Pure Class D

mono block power ampliﬁer

*MSW= Master Sound Works

Introducing design know-how of

professional studio-use power ampliﬁers

The power ampliﬁer is the core of our integrated ampliﬁer I-03.

Esoteric has introduced know-how collected through designing

professional studio-use power ampliﬁers to the power ampliﬁer

sections of I-03. The power ampliﬁer of the I-03 continuously

balances outstanding drive power and natural tones, and

conveys the essence of a master sound recording regardless of

the size and efﬁciency of speaker combinations.

Using Esoteric MSW Pure Class D power ampliﬁer

with dual mono architecture

The I-03 is equipped with a MSW Pure Class D power ampliﬁer

that is mounted with high-efﬁciency and uses the latest

high-speed MOS-FET devices in a 3-parallel push-pull conﬁgu-

ration to achieve superior speaker drive performance. This

power ampliﬁer uses power ampliﬁer blocks mounted in a dual

mono architecture separately for each channel to obtain a high

practical-use maximum output of 320W+320W (6Ω).

Analog power circuit support for robust

drive performance

A solid power supply unit makes the music pulse. The I-03

adopts powerful analog power circuits conﬁgured using large-

size capacitors and high-capacity custom transformers (each

transformer weighing approximately 10 kg (22 lbs.)). The MSW

Pure Class D power ampliﬁer produces an optimal and distinc-

tive tone that is both robust and smooth.

High-grade dual mono preampliﬁer

with C-03 technologies.

The I-03 preampliﬁer inherits stereo preampliﬁer C-03 technolo-

gies that are highly reputed worldwide and have received a

number of awards. This type of preampliﬁer uses a dual mono

architecture with a completely independent board for each

channel. The chassis compartment dedicated for the preampli-

ﬁer is partitioned using a 2mm thick steel plate to install two

preampliﬁer boards for the left and right channels.

Volume controls based on dual-mono concept

Esoteric DVC System*

Esoteric's DVC System uses a rotating control to transmit

signals to two preampliﬁers located on both sides of the I-03

and simultaneously drives both volume control ampliﬁers, (which

are installed separately on left and right preampliﬁer boards).

Volume controls are provided independently for left and right

channels to maintain the left and right audio signals separately,

and to achieve a clear sound quality with exceptional channel

separation. Furthermore, there is no audio signal wiring from the

audio board to the volume control, which signiﬁcantly reduces

the signal path to prevent deterioration of sound quality.

*DVC=Dual-mono Volume Control

Delicate and dynamic sound with low-noise operation

The Esoteric DVC System control board, used for central control

of the left and right channels, is installed in a compartment

separate from preampliﬁer boards and has a separate power

supply. This design assures low noise operation with a complete

shutdown of the control microcomputer except at the time of

receiving an operation request.

Bi-ampliﬁer and multi-ampliﬁer drive support

The I-03 responds ﬂexibly to system upgrades of the future. The

I-03 is equipped with a RCA output terminal that can be

switched between PRE OUT and REC OUT. Any level offset can

be set for signals sent to the power ampliﬁer during the

PRE-OUT output stage. The I-03 also offers a bi-ampliﬁer

architecture that allows connecting various types of external

power ampliﬁers with different input gains.

Making the most of the preampliﬁer function with

the power ampliﬁer shutdown function

The I-03 is equipped with a "power ampliﬁer shutdown function"

that shuts down the power ampliﬁer blocks for users who want

to use the standalone high-grade preampliﬁer function. The I-03

is also provided with a headphone jack that enables users to

listen to it's high-grade preampliﬁer sound through the privacy of

a stereo headset.

Other features

• Equipped with a number of input terminals

(RCA x 3 channels, XLR x 2 channels).

• Enables ﬁne adjustment of gain and L/R channel balance

for each input.

• MM/MC/LINE can be switched for the RCA1 connections.

• The AV throughout function bypasses volume adjustment,

which is convenient for systems with AV surround

environments and pure two-channel environments.

• Enables selecting the change curve of the audio signal,

while operating the volume control from ﬁve types of curves.

• Supplied with a high-grade aluminum remote control

that can operate the Esoteric Super Audio CD players.

MSW power ampli ﬁe r block i n a dual m on o

arc hitectur e Installe d on b oth sid e panels

separate ly for the lef t a nd r ight ch annels.

High-capacity custom transformer

(weigh in g ap proxim atel y 10 kg (22 lbs .))

installed in a nalog power c ircuit

Preampliﬁer boards in a dual mono architecture

for the lef t a nd right channels

Perceiving

musical impression

in its original form

Sensuous French Impressionism and spirit of German Classicism. Cool West Coast jazz

and hot East Coast jazz. Dynamism of black contemporary and sophistication of

Eurobeat.

The unique characteristics of sound and ﬂavor of music that were cut in the original

master recordings are passed on to the listeners without any trimming of parts. Esoteric

is committed to new developments in order to fully apply the Esoteric-original Master

Sound Works concept to the integrated ampliﬁer.

Ingenuity that breaks from conventional concepts and use of materials without cost

constraints. Esoteric has consolidated audio technologies it has fostered over years of

developing separate types of ampliﬁers and has without compromise, applied them into

creating an integral type ampliﬁer. The result has been the birth of Esoteric's ﬂagship

integrated ampliﬁer I-03.

When you look at the simple body form that eliminates all excessive features, you can

discover the passions of our engineers in their devotion to developing new high-end

models and the ﬂavor of reproducing music in its original form.

Esoteric's ﬂagship integrated ampliﬁer

with the Master Sound Works impression.

Integrated Amplier I-03

Especificaciones del producto

Marca:	Esoteric
Categoría:	receptor
Modelo:	I-03

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