Extraudio X250 User manual

X250

Integrated Ampliﬁer Pure Class AD

Extraudio products are unique, handmade and exclusive.

Introduction -------------------------------------------------------------- 1

1.1 Welcome

1.2 Warning

1.3 Explanation

1.4 The contents

Installation ----------------------------------------------------------------2

2.1 Unpackaging

2.2 Placement

2.3 Power ON/OFF sequence

Front panel -------------------------------------------------------------- 3

Rear panel --------------------------------------------------------------- 4

Remote Control ------------------------------------------------------- 5

Some advice and tips/ Recommendations: ------------------- 6

6.1 Cleaning and maintenance

6.2 Product run-in and operating temperature

6.3 Fuse and Phase

6.4 Use electric power conditioner

6.5 Ground connection

Support ------------------------------------------------------------------ 7

7.1 Please take a moment

Technical data --------------------------------------------------------- 8

Warranty ---------------------------------------------------------------- 9

Directives --------------------------------------------------------------- 10

10.1 Energy eﬃciency

10.2 European Directives

10.3 Copyright

Table of contents:

1.2 Warning:

To avoid risk of ﬁre or electric shock, do not expose this appliance to rain or moisture.

Verify line voltage before use.

Do not remove cover.

No user serviceable parts inside. Refer servicing to qualiﬁed service personal.

The warranty is void if the product is tampered with by non-authorised personnel.

Use only an authorized Extraudio service center.

1.4 The contents:

• Power Cable

• Mini-USB remote control charging cable

• Extraudio Remote control

• Owner’s Manual

• Technical report page

If you do not ﬁnd any of these items, please con-

tact your vendor. We recommend that you keep

the packaging so that you can transport the prod-

uct with total safety if required.

1.3 Explanation:

Your X250 integrated ampliﬁer aspires to be a work

of art that also evokes feelings and sensations. It

seems to disappear from your listening room and

to give way to the musicians who are, after all, the

object of our passion. At Extraudio, we strive for the

faithful reproduction of the real and authentic live

sound of a concert. The X250 does not aspire to be

just a piece of technology. Extraudio wagers on a real-

ly ﬂat sound, not just neutral but completely ﬂat.

Enjoy the music.

1.1 Welcome:

Thank you and congratulations on the purchase of your new Extraudio Pure Class A X250 integrated ampli-

ﬁer.

This Integrated Ampliﬁer is the result of a process of research, development and innovation (R + D + I) car-

ried out over 7 years in the Netherlands by specialized engineers.

Extraudio was conceived with the conviction that things can be changed in the high ﬁdelity sector and

particularly in High End audio.

We have used a very concrete concept as if it were a mantra “less is more” that Mies Van der Rohe popular-

ized and to which Dieter Rams added a new meaning “less is more, but with better execution”.

Our aims in the production process are:

• To create not just a perfect piece of kit but to create a perfect music box that conveys a totally trans-

parent, silent and authentic live sound that is energy eﬃcient without losing the magic or the weight and

measure of the music.

• To create a beautiful, and straightforward, honest and long-lasting product without pre-setting cost limits.

• To put the end user at the forefront of the creative process.

We have achieved all of this with the X250 integrated ampliﬁer and wish you to enjoy your product for

many years.

Please read this entire manual carefully.

INTRODUCTION

2.3 Power ON/OFF:

Connect the power cable to the rear socket. Make sure the voltage is correct for the X250 Integrated Am-

pliﬁer, which operates correctly at 220-240VAC, 50 / 60Hz. Once plugged into the wall socket, it is ready

to function. The button with the brand logo will light up in orange. The X250 is now in the standby

position. Then you must press this logo button or the remote control button , and the logo-button will

change colour from orange to white and begin to blink; it will do so for 60 seconds. Start-up has started; a

microprocessor will be reviewing all the functions. Please do not disconnect the appliance from the electri-

cal network during this process. After this pre-heating period of 60 seconds, the logo button will remain lit

in white.

NOTE:

Those of our products that are equipped with thermionic valves have a soft start system in order to pro-

long the life of the valves.

If you wish to switch oﬀ the product, press on the logo button or the button on the remote control. The

shutdown process will begin: the logo button will change colour from white to orange and start blinking for

20 seconds. Do not disconnect the product from the power supply until the logo button stops blinking.

Although the X250 does not have many external indicators it performs many functions that we wish to con-

ceal and automate by software (in keeping with our mantra, “less is more”) to improvise of use. The entire

product is controlled by a microcontroller and loaded with our proprietary and exclusive software and thus

ensures any future upgrading only requires changing the software version.

2.1 Unpacking

Please remember to keep the original packaging.

Your product has been thoroughly checked and has passed all the quality controls before being packaged

and shipped.

Make sure that the packaging is in perfect condition on receiving your product. If you notice any damage,

let the carrier know and inform your oﬃcial distributor.

If it is necessary to return the product to the factory, it must be sent in its original packaging.

Your oﬃcial warranty will be voided if it is not returned in the original packaging.

2.2 Placement

Remember to plan the placement of your ampliﬁer before setting it up. If you intend to place the X250 on

an item of furniture, you must leave a space of at least 5cm or 2 inches on either side of it in order to pro-

vide suﬃcient space for ventilation.

Excessive heating can shorten the service life of the internal components and even cause equipment fail-

ure.

It is also necessary to leave enough space at the back of the ampliﬁer in order to facilitate connections with

other components and speakers.

INSTALLATION

Front panel

Phono RCA inputs are installed on the rear panel, you can connect an external phono preampliﬁer.

Extraudio has an optional high quality internal MM preamp available. It is of minimalist design with a

single power stage that reduces noise to a minimum and increases the quality of reproduction of your vinyl

records. This preamp is built with discrete components in class A and is an essential complement to enjoy-

ing your LP’s.

NOTE: The extraudio Phono MM preampliﬁer option is not installed in the standard version; if you want

this option installed please contact your oﬃcial distributor or us.

Logo button:

Power on / oﬀ and LED status indicator:

ORANGE: X250 is oﬀ - Standby mode.

WHITE: The X250 is on.

NOTE: When the LED blinks white, it is in

the heating phase of the thermionic valves.

When the LED blinks orange, it is shutting

down.

LED indicator

“AUDIO LEVEL”, when you

press the remote control

“volume + or -, mute or pow-

er on / oﬀ” this LED lights

red.

The “SELECTOR”

knob allows the selec-

tion of diﬀerent input

sources for listening.

Input source selected with the Knob selector.

The ﬁrst time the X250 is turned on position 1:

“PHONO source input” is selected. Subsequently, the

product memorizes and stores the previous selection

and, whenever you turn it on again, it will start up with

the last source input that was selected.

If one of these LED selection indicators is lit in white, it

means that the product is fully operational and that an

input source is selected.

Front panel

Rear panel

Designed in the Netherlands

Assembled by hand in Europe

SN:

This triangle means,

“dangerous voltage

not insulated inside

the equipment and of

suﬃcient magnitude

to constitute a dan-

ger of electric shock

to people”.

The exclamation

mark within this

triangle signiﬁes

and warns the user

that this product

contains important

maintenance, techni-

cal service and oper-

ational instructions

in the literature that

accompanies it.

Speaker connection. Output terminals L + R. Connect the speakers correctly, the

right one to the terminal marked R and the left one to the terminal marked L. Al-

ways check the polarity of the speaker wires; the + sign indicates the red or positive

connector and the - sign indicates the black or white connector.

You can use banana plugs or bare wire; the recommended gauge of the speaker

wire is from 2mm to 4mm. You can also connect our Active Speaker Cable to get

the most out of your X250 integrated ampliﬁer as well as your speakers.

NOTA: Please do not cross or reverse the polarity of the speakers and do not pow-

er up the ampliﬁer without connecting the speakers as this can cause very serious

damage to the system and void the oﬃcial product warranty. The recommended

speaker load is 2 Ohm to 8 Ohm.

Power supply socket. Keep in

mind that for a better sound

you must connect the phase

of all your audio products

correctly. (See. Page 6.3 of this

manual)

IN processor input con-

nections or audio bypass

inputs for home cinema.

These two inputs are

designed to enable con-

necting an AV preampliﬁer

to the X250 Integrated

Ampliﬁer, which then acts

as a power stage and turns

oﬀ all other systems and

the inbuilt preampliﬁer.

This stereo RCA and XLR

input is marked on the front

panel with the acronym

PROC and is activated by

setting position 6 with the

front panel selector knob.

NOTE: Take great care

when using the X250 as a

power amp as it operates at

full power and could cause

damage to your speakers.

Balanced XLR

input of high

quality and

very low noise

with galvanic

insulation.

Stereo RCA inputs.

The Phono input is

the only special one in

the X250. We have an

optional Extraudio Phono

Preamp MM PH1. Please

consult your Extraudio

dealer or ourselves about

this option and its instal-

lation or, if you prefer, we

can conﬁgure this input

as a bypass so that it can

be used with an external

Phono preamp.

Extraudio remote control

Our remote control has been conceived from a diﬀerent approach – seeking the convenience of the user.

Extraudio wished to oﬀer battery life and operating distance as its main features and these objectives have

been achieved:

The remote control does not have removable batteries but has a rechargeable internal battery that only

needs recharging after 100 days in conditions of normal use.

It includes an integrated USB battery charger with a charge indicator that can be used with any USB port

such as a PC. When you connect the USB cable to the remote control, the battery charge LED lights up and

when the battery is fully charged the LED will turn oﬀ indicating that the battery is 100% charged.

The transmission range is from 20 to 80 meters.

The design is minimalist according to Mies Van Der Rohe’s philosophy of “less is more”. There are only four

buttons: On, Oﬀ, Volume up and down and Mute. The concept behind this remote control is unusual but in

the end it is a more eﬃcient and ergonomic creation.

Mini USB battery charge connector.

LED battery charge indicator.

Power ON/OFF

Volume +

Volume -

Mute

Led indicator and antenna protection.

Some advice and tips/ Recommendations

6.1 Cleaning and maintenance

Unplug the X250 Extra Pure Class AD Integrated Ampliﬁer unit from the wall socket outlet before cleaning

it. The chassis can be cleaned with a soft, damp cloth. It is essential that the cloth does not loose lint. The

X250 Integrated Ampliﬁer has a layer of anti-ﬁngerprint varnish on the outside and must not be cleaned

with solvents or any chemical product. A special liquid for painted surfaces or a non-abrasive polish can be

used if you wish

6.2 Product run-in and operating temperature/ Running in and warming up

Extraudio is fully aware of the empirical concept of running in audio products equipped with thermionic

valves and we can aﬃrm that our valve products have a running in period of between 100 to 400 hours of

operation. Once run in, the sound is rounder and gains in soundstage and spatiality. The running in process

should be carried out with music regardless of the output volume.

Another process is warming up; for a valve audio product to sound properly, it must be turned on for about

45 minutes. This is the time it takes for the product to reach its optimum temperature and point of electri-

cal functioning. It will sound better from 45 minutes onwards.

6.3 Fuse and *phase

Do not tamper with the top plate of the appliance or the warranty could be voided. If the equipment has

any problems please contact your oﬃcial distributor or us.

The fuses are inside the device and should only be replaced by qualiﬁed personnel.

For 200-240 volts AC, proper rating is 8 Amp.

Fuses must be of T (temporized) type.

Do NOT use fuses with wound coil ﬁlaments.

In case of doubt, always install Fast Blow types.

*The phase of a power supply can inﬂuence the sound of your audio products, please check that all the

devices are connected in the same way and that the phase is correctly connected. Check that the positive

phase or pole of the electrical current input is connected to the terminal on the left of its power connector.

6.4 Use electric power line

conditioner

We have found that the use of some power condi-

tioners can perform the function of “cleaning” the

power supply and eliminating electrical interference

and so improving the sound.

6.5 Grounding

The X250 Integrated Ampliﬁer is designed to be

connected to a ground connection. For optimum

performance, it is very important that the ground-

ing is correct and is enabled in your listening room.

Please take a moment:

Save the invoice of your purchase. Enter the following information here for insurance or for a future techni-

cal service request: serial number, date of purchase and name of the Extraudio dealer.

Serial Number: ________________________________________________

Date: _______________________________________________________________

Dealer Name: __________________________________________________

Support

If you need support or have any technical questions about Extraudio products, contact your dealer or con-

tact us by email at the following address so that we can provide fast and quality support:

support@extraudio.com

You can also contact us at the following postal address or by email:

Extraudio BV

Gravin Juliana van Stolberglaan 31, oﬃce A8875

2263 AB - Leidschendam

The Netherlands

info@extraudio.com

We also invite you to visit our website:

www.extraudio.com

Remember: Do not tamper with the top plate of the appliance or the warranty could be cancelled: If the

equipment presents any problems, please contact us or your oﬃcial dealer.

Thank you for reading this manual. We wish you to enjoy many hours of listening with your Extraudio and

your favourite music. Enjoy the music!

The Extraudio “Beyond the Limits” Team.

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