Xxl Power station User manual

USER’S MANUAL

1 - POWER STATION USER’S MANUAL

SAFETY INSTRUCTIONS

This symbol, wherever it appears,

alerts you to important operating and

maintenance instructions in the

accompanying literature. Read the

manual.

Detailed Safety and Operation Instructions:

All the operation instructions and safety should be read before the machine is operated.

Follow instructions:

All operation and user instructions should be followed by the user or the installer.

Retain Instructions:

The safety and operating instructions should be carefully retained for future reference.

Heed Warnings:

All warnings on the machine and in the operating instructions should be adhered to.

Water and Moisture:

The machine should not be used near water or in place full of moisture.

Ventilation:

The machine should be placed so that its location does not interfere with its proper ventilation. For

example, the appliance should not be situated on a bed, carpet, or similar surface that may create an

obstacle for the ventilation openings: or placed in a built-in installation, such as a bookcase or cabinet that

may impede the flow of air around the machine.

Heat:

The machine should be situated far away from heat sources such as heat registers, radiators, stoves, or

other machines (including amplifiers) that produce heat.

Power Source:

The machine should be connected to a power supply only of the type described in the operating

instructions or as marked on the external power transformer.

Power-Cord Protection:

Power supply cord should be routed so that it is not likely to be walked on or pinched by items placed

upon or against it, paying particular attention to cords, power transformer and plugs and the point where

they exit from the appliance.

Cleaning:

The machine should be cleaned only as recommended by the manufacturer.

Non-use Periods:

The external power transformer should be unplugged from the outlet when left unused for a medium or

long period of time.

Object and Liquid Entry:

Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through

openings, do not leave bottles or cans upon the unit.

Damages that Require Service:

The unit should be serviced by qualified service personnel in the following cases:

1. The external power transformer, power supply cord or the plug has been damaged.

2. The enclosure of the unit has been damaged.

3. The unit has been exposed to water or moisture.

4. The unit does not appear to operate normally or exhibits a marked change in performance.

5. Objects have fallen, or liquid has been spilled into the unit.

Servicing:

The user should not attempt to service the unit beyond what is described in the Operating Instructions. All

other servicing should be referred to qualified and authorized service personnel.

2 - POWER STATION USER’S MANUAL

POWER STATION

PROFESSIONAL FOUR CHANNELS HIGH POWER HEADPHONES AMPLIFIER

9Four totally independent stereo high-power amplifiers in XXL Half Rack Frame

9Fantastic audio quality even with extremely high volume levels

9Four Aux inputs provide up to four stereo independent mixes

9Double level control for each channel for separate Main In and Aux in control

9Mono/stereo switch for each channel for grater flexibility

9Possibility to parallel several headphone sets

9Servo-balanced Main and Aux inputs to avoid noise problems

9Ultra-low noise 4580 audio op-amps for outstanding sound performance

9High-quality potentiometers and illuminated switches

9High-quality, low tolerance components for highest results.

9Full Aluminium rugged construction ensures long life and durability

9External power supply design for professional applications

9Battery use possibility with external dedicated battery pack

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TABLE OF CONTENT

1. INTRODUCTION p. 4

1.1 High Technology p. 4

2. THE DESIGN p. 4

2.1 The MAIN input p. 4

2.2 The additional AUX input p. 4

2.3 The mono Switch p. 5

2.4 The power output p. 5

3. INSTALLATION p. 5

3.1 Packaging p. 5

3.2 Rack mounting p. 5

3.3 Mains voltage p. 5

3.4 Audio connections p. 6

Fig. 3.1: Different Connector Types and Wiring p. 6

Fig. 3.2: Headphones connector p. 7

4. CONTROLS p. 8

Fig.4.1 Front panel controls p. 8

Fig. 4.2 Back panel connections p. 9

5. APPLICATIONS p. 10

5.1 Using the AUX IN input p. 10

5.2 Using the MAIN IN input p. 10

Fig.5.1 Studio playback application p. 11

Fig.5.2 Live /Studio monitor System p. 11

5.3 MONO MAIN function p. 12

5.4 Connecting more headphones p. 12

6. TECHNICAL SPECIFICATIONS p. 13

4 - POWER STATION USER’S MANUAL

6. INTRODUCTION

In purchasing the XXL POWERSTATION, you have acquired a professional

headphone power amplifier of the high-end class which meets allthe demands and

requirements ofstudio and live works. In fact itisan extremelyefficientand universal

headphone amplifier that can drive headphones from 64 to 600 ohm and more. It has

been designed above allto deliver great power and to be a reference unitfor the sonic

evaluation ofthe final mix. It isalso a powerful distribution monitor amplifier for

musicians in the studioor in the stage.

1.1 High Technology

Our experience in thefield of professional studios drove us to designthePOWER

STATION, an incredible smallsizefour channelsprofessional Headphone power

amplifier that isableto giveanswer to allthe demands inStudio, Live, broadcast and

TVapplications. Allthe electronics isassembled directlyon PCB with no wires use, it

means less possibility of malfunction. All theinternal IC are 4580,ultra High quality

Operational Amplifier that allow high current output with verylownoise threshold. Allthe

outputsare protected in order to guarantee safe operating conditions in every situation.

All the inputs are balanced;in this way you can have the best matching conditions with

the other units. The choice of having the external power supply ensure professional

features with minimumnoise, and allow you to drive the power station also with an

external optional batterypack to use the unitalso withoutthepresence of mainpower

AC.

WARNING!

It should be pointed out, that extreme output levels maydamage your ears and/or

your headphone set. Turn down the LEVEL controls before

you switch on the unit.

7. THE DESIGN

2.1 The MAIN input

A Stereo MAIN input allowsto a mono or stereo signal to simultaneously feed all the

four amplifiers. The main input has a balanced circuit that allow you to connect directly

both balanced or unbalanced signals. The POWER STATION has independent level

controls for each amplifier.

2.2 The additional AUX input

Each of the four stereo amplifiers is equipped with an independent AUX input. Also the

Aux inputs have a balanced circuit that allow you to connect directly both balanced or

unbalanced signals. The Aux input allows for adding a further audio signal to the main

signal. The musician can therefore control the volume of his/her own instrument in the

master playback signal as desired. This built-in mix function supersedes the external

monitor mixer required up to now. For the same reason you can add a click signal on

5 - POWER STATION USER’S MANUAL

the master playback signal and you can manageboth the levelsofthe two sources as

you desire.

2.3 The mono Switch.

Each ofthe four Channels isequipped with a Mono function Switch that allow you to

decide ifyou need to workwith a mono or a stereo signal.In thisway ifyou choose the

possibility youcanmix more thantwodifferentsignals andlisten to them inboth your

ears. When a MONOSwitch ofachannel ispushed down thismeans thatthischannel

isset to mono mode and the red led ison.

2.4 The power output

Each channel has astereopoweroutputonastandardstereoJack. Thispoweroutput

isfullprotected and ispossible to connect onit morethan one headphones setjust

using stereo Y-shaped adapters.

8. INSTALLATION

3.1 Packaging

XXLcarefullypack inthe factoryallits units andthe packaging was designed to protect

the unitfromroughhandling.Nevertheless,we recommend thatyou carefullyexamine

the packaging and its contents for any signs of physical damage,whichmayhave

occurred intransit.

ATTENTION!

If the unit is damaged, please do not return it to us, but notifyyour dealer and the

shipping company immediately, otherwise claims for damage or replacement may

not be granted. The consignee must make shipping claims.

3.2 Rack mounting

The POWER STATION fits into one new standard “half rack” unit of space (1 3/4").

Please allow at least an additional 4" depth for the connectors on the back panel. Be

sure that there is enough air space around the unit for cooling and please do not place

the unit on high temperature devices such as power amplifiers to avoid overheating. It is

also possible to fit the POWER STATION into one standard rack unit of space (1 3/4")

using the optional RK100 rack adapter that you can buy from your Dealer.

3.3 Mains voltage

Before you connect your unit to the mains AC socket, please make sure that your local

voltage matches the voltage required by the external power supply of your unit! In case

that the label of your Unit transformer require a voltage different from the one that you

have in your Country do not connect it to mains and contact your Dealer.

6 - POWER STATION USER’S MANUAL

3.4 Audio connections

The MAIN and the AUX inputs on the POWER STATION are fully balanced. If possible,

connect the unit to other devices in a balanced configuration to allow for maximum

interference immunity.

Please ensure that only qualified persons install and operate the POWER

STATION. During installation and operation the user must have sufficient

electrical contact to earth. Electro-static charges might affect the operation of the

POWER STATION!

Fig. 3.1: Different Connector Types and Wiring

Tip = Signal Tip = Hot

(In Phase)

Tip = Hot

(In Phase)

Ring = Cold

(Out of Phase)

Ring = Cold

(Out of Phase)

Tip = Signal

Sleeve =

Ground / Shield

Sleeve =

Ground / Shield

Sleeve =

Ground / Shield Sleeve =

Ground / Shield

Cable Clamp Cable Clamp

Unbalanced use of mono

1/4” jack connector

Balanced use of stereo

1/4” jack connector

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Fig. 3.2: Headphones connector

Tip = Left

Tip

Ring = Right

Ring

Sleeve =

Ground / Shield

Sleeve

Cable Clamp

Headphones stereo

1/4” connector

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9. CONTROLS

Fig.4.1 Front panel controls

1) The CH1 MAIN IN control adjusts the level of the input signal inserted via the rear

panel MAIN INPUT connectors on the CH1 amplifier.

2) With the CH1 MONO switch the amplifier can be switched between stereo to mono

mode, and vice versa.

3) The CH1 AUX IN control adjusts the level of the input signal inserted via the rear

panel CH1 AUX INPUT connectors on the CH1 amplifier.

4) The CH2 MAIN IN control adjusts the level of the input signal inserted via the rear

panel MAIN INPUT connectors on the CH2 amplifier.

5) With the CH2 MONO switch the amplifier can be switched between stereo to mono

mode, and vice versa.

6) The CH2 AUX IN control adjusts the level of the input signal inserted via the rear

panel CH2 AUX INPUT connectors on the CH2 amplifier.

7) The CH3 MAIN IN control adjusts the level of the input signal inserted via the rear

panel MAIN INPUT connectors on the CH3 amplifier.

8) With the CH3 MONO switch the amplifier can be switched between stereo to mono

mode, and vice versa.

9) The CH3 AUX IN control adjusts the level of the input signal inserted via the rear

panel CH3 AUX INPUT connectors on the CH3 amplifier.

10)The CH4 MAIN IN control adjusts the level of the input signal inserted via the rear

panel MAIN INPUT connectors on the CH4 amplifier.

11)With the CH4 MONO switch the amplifier can be switched between stereo to mono

mode, and vice versa.

12)The CH4 AUX IN control adjusts the level of the input signal inserted via the rear

panel CH4 AUX INPUT connectors on the CH4 amplifier.

13)The POWER ON switch is the main power switch and allow you to switch on /off the

device.

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Fig. 4.2 Backpanel connections

1) Power Supplycableholder.

2)CH4 LEFT(MONO) AUX INPUT.Useasauxiliaryleftor mono audio input forCH4,

connect balanced or unbalanced standardphone jack.

3) CH4 RIGHT AUX INPUT.Use as auxiliaryrightaudioinput for CH4, connect