Luxman L-590-AX Owners Manual

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Owner`s Manual

Contents

Precautions ············································································································· 1

Features of This Unit································································································ 2

Names and Functions······························································································ 4

Connections ·········································································································· 12

Operations ············································································································· 16

How to Use Remote Control·················································································· 18

Block Diagram······································································································· 20

Specifications ········································································································ 21

Before Asking for Repair Services·········································································· 22

Precautions

INTEGRATED AMPLIFIER L-590AX

Installation place

This unit shall be installed in a well-ventilated and effectively

heat-released place because this unit is an A-class amplifier

and generates considerable heat.

Especially, installation of this unit where direct sunlight is

present, where the temperature rises excessively high such

as close to a heater, or where it is humid or dusty may cause

a malfunction even if heat is efficiently released. Therefore, do

not install this unit in such places.

Ventilation holes

The ventilation holes on the top and bottom boards of this

product must not be blocked because this unit is an A-class

amplifier and generates considerable heat. If the amplifier is

installed on a rack or the like, secure ample space for cooling

and leave the door open. Do not pile up other things on the

amplifier and never put articles on it. Failure to observe this

may cause a malfunction.

Note:

For heat dispersal, do not install this equipment in a confined

space such as a book case or similar unit.

* Note

**

*

Cautions in connecting speakers

When making speaker system connections, exercise extra

care not to short-circuit between ! and @ of the speaker ter-

minals and speaker input terminals of this unit. If a large signal

is applied to the amplifier with its circuit left short-circuited, a

large current may be passed through the output circuit and

cause a malfunction.

The sound is not generated shortly after
the power supply is turned on.

This amplifier is equipped with a time muting circuit in order to

separate the output circuit. Therefore, no sound is generated

shortly after the power supply is turned on.

If the volume control is moved to a high sound level before

the time muting circuit is canceled, a large sound is suddenly

generated. Please be advised that the volume control shall be

set to a low level at first and adjusted after sound comes out

of the speakers.

Protection circuit

This product is equipped with a protection circuit that is ac-

tivated upon detection of overcurrent, abnormally high tem-

perature, and DC drift to protect the amplifier and speakers.

When the protection circuit is activated, the output to the

speaker terminal is shut off and the standby indicator blinks to

show that this unit is in the muting state. If the protection cir-

cuit is frequently activated even when disconnecting the pow-

er plug from the wall outlet and turning on the power again

after a lapse of a certain time, please consult your dealer.

Wall

Precautions in connecting with other
components

When connecting this unit to input devices such as a CD

player, an SACD player, a tuner, and a recorder, be sure to

turn off the power of this unit and all other connected devices.

Failure to observe this may generate a strong noise resulting

in speaker damage or cause a malfunction.

The pin-plug to be inserted in each input terminal of this unit

shall be pushed in firmly. If the grounding terminal is inad-

equately connected, noises including hum may be generated,

resulting in an adverse S/N ratio.

Batteries

Caution:

Batteries used for remote controller shall not be exposed to

excessive heat such as sunshine, fire or the like.

Repair and adjustment

When repairs or adjustments are needed, please ask the

dealer where you bought the unit.

Cleaning

For cleaning, use a piece of soft cloth to wipe the unit such as

cleaning cloth available on the market. If the unit has become

very dirty, remove the dirt with soft cloth absorbing a small

amount of neutral detergent, and then wipe the unit with dry

cloth. Do not use a solvent like benzine or thinner because

such a substance can often damage the exterior.

1

Features of This Unit

LECUA-WM - LUXMAN Electric Controlled
Ultimate Attenuator - Waiting Matrix

Application of the system to obtain attenuation by combin-

ing 2 fixed resistances connected to this product series has

improved efficiency of the LECUA1000 attenuator used in our

flagship model, C-1000f.

The shortest signaling route has been achieved by the in-

tegrated amplifier circuit thanks to the 3D structure of the

mounting boards.

Controlling LECUA-WM to the level equal to the volume po-

sition detected by a microprocessor has achieved the op-

eration feeling similar to our conventional sliding-type volume

controls.

ODNF - Only Distortion Negative Feedback -

The amplification feedback circuit that has acquired the high-

speed primary slew rate and ultra-high bandwidth by feeding

back only distortion components generated during amplifica-

tion to maintain the pure sound quality of the main-amplifier

that is almost non-feedback.

The newest version, 3.0A, has achieved the low impedance

and high S/N ratio of the transmission circuit by parallelization

of the first and second stages of the amplifier circuit.

In addition, the input stages of the error detection circuit are

parallelized to moderate the frequency characteristic and

noise.

Parallel speaker relays

This unit is equipped with large type of 2 parallel speaker re-

lays with a low resistance value to reduce the impedance of

the speaker output lines.

Beeline construction

Newly designed beeline construction composes the audio

input signal via the optimally shortest route to the speaker

output.

Selector switch IC

Selector switch IC with high sound quality, which is used in

the top-end control amplifier, C-1000f, improves the separa-

tion and crosstalk performances.

Schottky barrier diode

Application of schottky barrier diode manufactured by Nihon

Inter Electronics Corporation that has less switching noises

and higher conversion efficiency to the DC voltage for the

power supply rectifier circuit.

LUXMAN’s original OFC wires

Our original OFC wires are used in the internal wiring to

achieve smooth signal transmission thanks to the spiral wrap

shielding on each core and the non-plating process on the

core wire.

3 parallel push-pull output stages

3 parallel push-pull structure of bipolar transistor.

Pure class A rated output 30W+30W (8Ω).

High-inertia power supply

High-inertia electronic circuit that combines a large-capacity

EI-core-type power transformer with customizable 10,000μF

× 4 capacitor blocks.

2

Round pattern board

After careful consideration of delicate audio signal flow, a

round pattern board has been applied to achieve smooth sig-

nal transmission.

INTEGRATED AMPLIFIER L-590AX

Phono amplifier

This unit is equipped with a phono amplifier that is compat-

ible with the MM/MC cartridge to achieve analog record re-

production in a high-grade level without adding a dedicated

phono amplifier.

Separate function

This unit is equipped with a separate switch to separate the

pre-amplifier and power-amplifier each other that enables the

bi-amp connection adding a power-amplifier and the coexis-

tence with an AV system.

Loopless chassis structure

This unit consists of the independent construction of a

loopless chassis to eliminate increased ground impedance

caused by chassis current.

18 mm pitch RCA terminal

Introduction of 18 mm pitch all RCA input/output terminals

allows even a high-performance line cable with large plug to

be connected.

Large type of speaker terminals

Speaker terminals (A and B systems) of inline layout (with

same characteristics for right and left), which is compatible

with Y lugs and banana plugs to enable easy connection with

extra-thick speaker cables.

New standard size

This unit has been manufactured based on LUXMAN's new

standard size (440mm wide, common with a series of sepa-

rate amplifiers and a series of SACD players.

Cast-iron insulator

This unit is equipped with gradation cast-iron insulators that

cuts out unnecessary external vibration and strongly supports

the weight of this unit.

Headphone output terminal

This terminal allows you to casually enjoy sound even at mid-

night.

AC inlet

This inlet enables the connection with an external power ca-

ble.

Hairline finish for the top board

Application of surface treatments such as blasted white for

the main unit and sophisticated hairline finish for the top

board.

Needle-type meter

This unit is equipped with needle-type meters lighted with

LED, which improves the visibility in the room where the unit

will be installed.

Ventilation

For enhancing the heat radiation efficiency of this unit, ventila-

tion holes on the top board are wider than our conventional

models.

Remote control encased in aluminum

The high-grade remote control, which is encased in alumi-

num, can control applicable CD/SACD players.

3

Names and Functions

Front panel

56

712 43

1. Operation switch (OPERATION)

Toggles the power on and off.

When wiring or connection is performed, be sure to turn off

this switch.

2. Operation indicator (OPERATION)

Blinks in the time of muting mode when the operation

switch is turned on and lights up when the operation state

is activated afterward. This indicator blinks when the unit is

in the muting mode or when the volume is adjusted with the

remote control.

891011121314151617

3. Input selector (INPUT SELECTOR)

Selects an input device from the devices such as a CD play-

er, an SACD player and a tuner connected to each input

terminal.

The input selector has 7 positions consisting of LINE-4,

LINE-3, LINE-2, LINE-1, BAL LINE-1, BAL LINE-2, and

PHONO from left to right that correspond to each input ter-

minal on the rear panel. The knob is rotated to light the input

indicator of the input device to be selected.

4. Input indicator

Lights up at the input device to be selected with the input

selector or remote control.

4

INTEGRATED AMPLIFIER L-590AX

5. Display

Displays the operation status of this unit.

This display is composed of 7 indicators and 2 power me-

ters.

6. Remote control infrared receiver
(REMOTE)

This is a sensor to receive signals from the accessory re-

mote control.

7. Volume control (VOLUME CONTROL)

Adjusts the sound volume. Sound is not generated when

this control is rotated counterclockwise to the end, and

then, the sound volume gradually becomes higher when the

control is slowly rotated clockwise.

8. Headphone jack (PHONES)

Insert the headphone plug into this output jack. Even when

the plug is inserted, signals to the speaker output terminal

are not interrupted. Accordingly, to listen to sound with only

use of headphones, set the speaker selector to off.

9. Separate switch (SEPARATE)

Separates the pre-amplifier and main-amplifier each other.

off : Uses this unit as a normal pre-main amplifier.

(separate
indicator off)

on : Feeds external signals from the MAIN IN termi-

(separate
indicator on)

Every pressing of this switch toggles the separate on and

•

off.

The separate indicator lights up when the separate switch

is on.

When the separate switch is set to on, the volume control of

this unit cannot adjust the volume of the speakers connected

to this unit. Volume adjustment shall be performed at the

input device side such as the control amplifier connected to

the MAIN IN terminal.

Entry of direct output into the MAIN IN terminal from a CD

player or other devices that cannot adjust sound volume

constantly provides a full power state and accordingly results

in the risk of speaker damage.

For such input devices, be sure to use a control amplifier

equipped with the sound volume adjustment function as

a relay, generate sound through the speakers with volume

lowered, and adjust the volume to your favorite level.

When arranging the wiring, be sure to turn off the power of

this unit.

nal on the rear panel to the main-amplifier sec-

tion.

5

Names and Functions

Front panel

56

712 43

10. Line straight switch (LINE STRAIGHT)

Enhances the purity of the sound quality by bypassing the

balance control circuit, tone control circuit, or the like.

off : Line straight off/bypass off

(line straight
indicator off)

on : Line straight on/bypass on

(line straight
indicator on)

• Every pressing of this switch toggles the line straight on

and off.

The line straight indicator lights up when the line straight

switch is on.

When the line straight switch is set to on, the balance control,

tone control, subsonic, monaural and loudness cannot be

adjusted and the mode selector does not function.

891011121314151617

11. Balance control (BALANCE)

Adjusts the balance of sound volume between right and left

channels.

Rotating this switch counterclockwise causes the left sound

volume to be enhanced, and rotating the switch clockwise

causes the right sound volume to be enhanced.

This switch shall be set to the center position under normal

conditions, and rotated to make adjustment if necessary.

When the line straight switch is set to on, this switch does

not function.

12. Tone control for treble (TREBLE)

Controls the frequency characteristics in the high-frequency

range.

When this switch is set to the center position, flat frequency

characteristic is obtained. Rotating the switch clockwise

causes the high-frequency range to be enhanced, and

rotating the switch counterclockwise causes the high-fre-

quency range to be attenuated.

When the line straight switch is set to on, this switch does

not function.

6

INTEGRATED AMPLIFIER L-590AX

13. Tone control for bass (BASS)

Controls the frequency characteristics in the low-frequency

range.

When this switch is set to the center position, flat frequency

characteristic is obtained. Rotating the switch clockwise

causes the low-frequency range to be enhanced, and rotat-

ing the switch counterclockwise causes the low-frequency

range to be attenuated.

When the line straight switch is set to on, this switch does

not function.

14. Speaker selector (SPEAKERS)

Selects either of 2 speaker systems, A or B, located at the

rear panel.

OFF: Activates only headphones. No sound is gener-

ated from any speakers.

A: Selects the A system speaker terminal.

(center)

B: Selects the B system speaker terminal.

A+B: Simultaneously activates both A and B system

speakers. When both speaker terminals are si-

multaneously used, select speakers with imped-

ance of 8 ohms or more because both output

terminals are connected in parallel.

16. Cartridge selector (CARTRIDGE)

Changes the gain level of the equalizer amplifier (amplifier

circuit required to play an analog record).

MC: Selects an MC (moving coil) type cartridge of low

output voltage.

Be aware that the sound volume becomes higher

and unbalanced sound without high frequencies

is generated owing to the impedance when “MC”

is selected during use of the MM type cartridge.

MM: Selects an MM (moving magnet) type cartridge of

high output voltage.

17. Monitor switch (MONITOR)

Toggles between use and nonuse of the monitor input ter-

minals (MONITOR) on the rear panel.

on : Enables to reproduce the data from the recorder.

(monitor
indicator off)

off : Enables to reproduce the data from the source

(monitor i
indicator on)

• Every pressing of this switch toggles the monitor on and

off.

The monitor indicator lights up when the monitor switch

is on.

selected with the input selector.

15. Recording switch (REC OUT)

Sends recording signals to the recorder connected to this

unit.

OFF: Does not send recording signals to the recorder

output terminals on the rear panel.

When not using the recorder, set the recording

switch to this position.

ON: Selects an input source to be recorded with the

input selector and sends recording signals to the

recorder connected the recorder output terminals

of this unit.

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