Cec AMP3800 Manuel utilisateur

AMP3800

Control / Power Amplier

Owner's Manual

Control / Power Amplier AMP3800

Contents

Thank you for purchasing AMP3800.

Please read through and refer to this Owner’s manual to use your AMP3800

safely and adequately. It is recommended that you keep the unit’s packaging

available for future transportation needs.

Features

●AMP3800 is a power amplier with input control, developed for the highest

pure sound experience with a design philosophy of minimizing the signal

path. It has the newest LEF (Load Effect Free) circuitry avoiding quality

degradations instead of correcting afterwards. LEF also provides pure

single-ended class-A operation with improved energy efciency and does

not require a sound altering global feedback loop. This results in the

successful combination of high power (2 x 64W / 8Ω) and highest quality

sound, widely unaffected by transistor characteristics.

●AMP3800 also features IGM (Intelligent Gain Management). This unique

volume control technology controls the amplifier’s gain itself without any

input signal dilution.

●AMP3800’s circuitry is fully balanced, from the input stage to the speaker

outputs. This minimizes noise and distortion and increases the speed and

resolution of the sound.

Introduction

●Introduction ………………………………………………………………… 2

●Features …………………………………………………………………… 2

●Important Safety Instructions …………………………………………… 3

●Handling Precautions …………………………………………………… 4

●Accessories………………………………………………………………… 6

●Front Panel Functions …………………………………………………… 7

●Rear Panel Functions …………………………………………………… 9

●Remote Control Unit …………………………………………………… 12

●Cautions regarding Handling ………………………………………… 14

●Maintenance …………………………………………………………… 14

●Troubleshooting ………………………………………………………… 15

●Service Contact Preparations ………………………………………… 16

●Specications …………………………………………………………… 16

AMP3800 User's Manual

Important Safety Instructios

1) Read these instructions.

2) Keep these instructions.

3) Heed all warnings.

4) Follow all instructions.

5) Do not use the unit near water.

6) Clean only with a dry cloth.

7) Do not block any ventilation openings. Install in accordance with the

manufacturer’s instructions.

8) Do not install the unit near any heat sources such as radiators, heat registers,

stoves, or other apparatus (including ampliers) that produce heat.

9) (For USA, Canada: ) Do not defeat the safety purpose of the polarized or

grounding-type plug. A polarized plug has two blades, with one blade wider than

another. A grounding type plug has two blades and a third grounding prong. The

wide blade or the third prong is provided for your safety. If the provided plug does

not fit your outlet, consult an electrician for replacement of the obsolete outlet.

(For European Countries: ) Do not defeat the safety purpose of the grounding-type

plug. This plug has two poles and a third grounding hole. The third hole is provided

for your safety. If the provided plug does not t your outlet, consult an electrician

for replacement of the obsolete outlet.

Caution: To reduce the risk of electric shock,

do not remove the cover or rear panel. It does

not contain any user-serviceable parts. Refer

servicing to qualied service personnel.

The lighting flash with arrowhead symbol,

within an equilateral triangle, is intended to

alert the use to potential shock hazards within

the product’s enclosure.

The exclamation point within an equilateral

triangle, is intended to notify the user to

the presence of important operating and

maintenance (servicing) instructions in the

accompanying documentation.

WARINIG: TO PREVENT FIRE OR SHOCK HAZARD, DO

NOT EXPOSE THE APPLIANCE TO RAIN OR MOISUTRE.

Control / Power Amplier AMP3800

10) Protect the unit’s power cord from being walked on or pinched, especially around

the plugs, convenience receptacles, and where it exists the unit’s casing.

11) Only use attachments/accessories specied by the manufacturer.

12) Only use the unit with a cart, stand, tripod, bracket, or table specied

by the manufacturer or sold with the unit. If using a cart, exercise caution

when moving the cart unit combination to avoid injury from it tipping over.

13) Unplug the unit during lighting storms or when leaving it unused for

extended periods of time.

14) Refer all servicing to qualied service personnel. Servicing is required

when the unit itself, its power-supply cord, or plug has been damaged in any way,

when liquids have been spilled onto the unit, when foreign objects have fallen into

the unit, when the unit has been exposed to rain or moisture, when the unit does not

operate normally, or when the unit has been dropped.

Caution

●Do not expose the unit to drips or splashes.

●Do not place any objects lled with liquids, such as vases, on the unit.

●Do not install the unit in a conned space, such as within a bookcase or similar piece

of furniture.

●Plug the AC power cord into an easily accessible AC wall outlet, so it can be quickly

unplugged in case of emergency.

●Do not remove the protective housing with a screwdriver.

●Use of controls or adjustments or performance of procedures other than those

specied herein may result in hazardous radiation exposure.

●If the unit seems to be malfunctioning, contact a qualied service station. Discontinue

use of any malfunctioning unit.

For CANADA:

AC POWER CORD CONNECTION

CAUTION:

TO PREVENT ELECTRIC SHOCK, MATCH THE BLADE WIDTH OF THE PLUG TO

THE SLOT WIDTH. THE PLUG MUST BE FULLY INSERTED TO THE SLOT.

1. Connecting Other Devices

Unplug AMP3800’s AC power cord from the outlet before connecting or disconnecting

other devices. Exercise caution when handling the AC power cord. When disconnecting

the AC cord from a socket, make sure you pull the plug, and not the cord itself.

2. Turning Power ON/OFF

Your system components should be turned ON/OFF in the following order to avoid

generating noise from your speakers and damaging the speakers themselves or other

devices:

Handling Precautions

AMP3800 User's Manual

Turning power ON: Turn AMP3800’s power ON at last, after turning ON the DA

converter or CD-player connected to AMP3800.

Turning power OFF: Turn AMP3800’s power OFF first, before turning OFF

connected units.

3. Handle with Care

Avoid exerting excessive force on the cabinet, the volume and selector knobs and

the push switches of AMP3800.

4. Avoid Electrostatic Discharge

Like all complex electronic devices, AMP3800 is sensitive to electrostatic discharge.

A discharge may cause malfunction or damage.

5. Installation

Use of an audio rack is recommended to maximize the sound quality and

performance of AMP3800. Installation and use of AMP3800 in the locations

described below may cause deterioration in sound quality or malfunctions.

●Locations exposed to direct sunlight, such as windowsills, and other exceptionally

warm locations, such as near heating appliances (surrounding temperature higher

than 35℃), or exceptionally cold locations (surrounding temperature lower than 5℃)

may prevent AMP3800 from functioning adequately.

●Damp locations exceeding 90% humidity may cause AMP3800’s metal parts to

rust, causing the unit to malfunction.

●Dusty locations may cause AMP3800 to malfunction. The accumulation of dust

outside and inside the unit may lower the performance of music signal amplication.

It may also cause contact failure of the switches and/or noise.

●Otherwise, avoid installing AMP3800 close to other transformers and electrical

motors, so as to prevent the pickup of induction hum. Also, avoid mounting

AMP3800 on surface that may be affected by vibration.

6. Avoid Lightning Strikes Damages

Disconnect the AC power cord from the AC outlet when there is a thunderstorm in

your vicinity.

7. Condensation

When AMP3800 has been brought into a warm room when the exterior temperature

is cold, or when the room temperature rises sharply from using a heater,

condensation may occur from both inside and outside the unit, hampering its

performance. If this happens, leave AMP3800 unused in the room for 1 to 2 hours

(depending on the amount of condensation), so as to bring the unit’s temperature

closer to the room temperature. The condensation should go away gradually.

8. Listening Etiquette

When adjusting the sound volume level, make sure you do not disturb other people

and your neighborhood.

Control / Power Amplier AMP3800

AMP3800

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Control / Power Ampliﬁ

取扱説明書

Accessories

The packaging of AMP3800 should contain the following:

1. AMP3800 unit

2. AC Power Cord

3. Remote Control Unit

4. Two AAA Batteries for the remote control unit

5. Owner’s manual

NOTE: Keep the packaging available for future transportation needs.

The AC power cord is for use with AMP3800 exclusively, and should not be

used for other devices.

AMP3800 User's Manual

Front Panel Functions

❶ ❸ ❹ ❻❺❷

❶POWER button

Push the POWER button to turn AMP3800 ON respectively OFF.

When AMP3800 is turned ON the switch will light up with a blue color, and

the display will indicate the “MUTE” and blink “PLAY” during the unit is in

starting-up. Approximately 5 seconds later once the display changes to

indicate “PLAY” and a selected input “XLR, RCA1, RCA2, RCA3 or RCA4”,

AMP3800 is ready for use. “MUTE” will disappear.

Note: When you need to turn the power OFF and back ON again, wait for

least 20 seconds after turning the unit OFF to prevent malfunction.

Before turning AMP3800 ON or OFF, turn the volume knob to the

minimum to avoid a switching noise or sudden and big sound

from the speakers, which may result in damaging the speakers or

injuring your ears.

❷INPUT Selector

Turn the INPUT knob clockwise or counterclockwise to select an input from

XLR, RCA1, RCA2, RCA3 and RCA4). The display will indicate the selected

input.

Lower the volume before changing the input to avoid changing

noise, sudden big sound, or damage!

Control / Power Amplier AMP3800

❸REMOTE CONTROL RECEIVER

When operating the remote control, point it towards the REMOTE CONTROL

RECEIVER. Make sure nothing is blocking the AMP3800’s front panel, where

the REMOTE CONTROL RECEIVER is located.

❹REMOTE CONTROL INDICATOR

During receiving a valid remote control command, the REMOTE CONTROL

INDICATOR lights up with a blue color.

❺IGM VOLUME

Turn the VOLUME knob clockwise to increase the volume,

and counterclockwise to decrease the volume.

Note: Due to the IGM VOLUME property that controls the amplier gain itself,

there is still small sound from the speakers even at the minimum VOLUME

position. Stop the playback or press ❻MUTE Button to turn the sound off.

❻MUTE Button

Press the MUTE button whenever you need to temporarily turn the sound off.

The display will indicate “MUTE” as long as this function is active. Press the

MUTE button again or press the VOL+/VOL- buttons on the remote control to

cancel the MUTE mode.

AMP3800 User's Manual

Rear Panel Functions

3800

❶ ❸ ❹ ❻❺❷ ❶❸❹ ❷

Wires

Spade

Banana Plugs

❶RIGHT / LEFT SPEAKER

Power amplier output terminals for the right/left speakers. The red terminal

is for (+) the black one is for (-). Speakers with 4 ohm to 8 ohm impedance

can be connected by using banana plugs, spades or wires.

Note: Before connecting or disconnecting speakers turn the AMP3800’s

power OFF.

Control / Power Amplier AMP3800

Connect the interconnect cable in the correct direction

aligned for the signal path.

Connect the interconnect cable in the correct direction

aligned for the signale path

❷XLR input

Line in audio signal input jacks equipped with balanced XLR connectors. Use

interconnect XLR cables to connect the XLR input to an external source with

XLR line output, such as CD player, DVD player or DA converter. (Pinning:

1=Ground, 2=Hot, 3=Cold)

Note: Phono and digital sources cannot be connected to the XLR input.

❸RCA inputs (RCA1 / RCA2 / RCA3 / RCA4)

Line in audio signal input jacks equipped with unbalanced RCA connectors.

Use interconnect RCA cables to connect the RCA1/RCA2/RCA3/RCA4 inputs

to external sources with RCA line outputs, such as CD player, tuners or tape

decks.

Note: Phono and digital sources cannot be connected to RCA1, RCA2, RCA3

or RCA4.

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