Integrated Amplifier X250T Solid State, Pure Class AD

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Integrated Amplifier X250T Extraudio Pure Class AD USER MANUAL (775Kb)

Hi-Fi News May 2020 – New integrated amplifier Class AD X250T

Extraudio Integrated Amplifier X250T Solid State, Pure Class AD

The new X250T provides maximum silence and linearity of transistor sound, pure class A. The X250T is exquisitely designed in dual mono and dual power supply, real dual mono configuration, for a feeling of perfect stereo, extra energy as well as a super-frequency response of about 1 Ghz …

Our X250T class AD integrated amplifier consists of the complete XP1 preamplifier combined with the class AD power stage. The unparalleled synergy of this combination further accentuates the live sound of Extraudio; it delivers 250watts of highly efficient power into 4 ohms per channel.

This integrated amplifier, just like any Extraudio product, captures the musician’s intentions and reproduces each and every one of the nuances of the music rapidly, smoothly, and with a warm, velvety sound; it is macro detailed but without sounding aggressive or producing listening fatigue – you will want to keep turning up the volume.

The X250T integrated amplifier offers us the characteristic Extraudio sound; extremely powerful while retaining all the nuances. It’s a great allrounder.
It allows you to perceive every detail of the recording and rediscover all your favourite discs.

In terms of listening the Integrated amplifier X250T:
It should sound totally silent with a spectacular black background that brings a magnificent depth to the soundstage, giving a perception of the different three-dimensional instruments.
In the lower frequency response region it has everything: muscle, claw, impact and extension.
Everything will depend on the recording, but even in old and poorly recorded live shots it achieves good control and exposure of the lower notes without drowning out the rest of the spectrum.
In the mid-range it infuses reality, without over exposing it and tiring the listener of over exposure.
The upper range is a delight because with the black background it doesn’t jump in our ears. There is no sharpness, but equally there is no flatness or ‘sandy’ sounds.
Combined with the low and mid-range it is as if the room is the player and not the amplifier or loudspeakers…

For outputs and for galvanic isolation, we use audiophile grade transformers. The windings are arranged to give perfect symmetry if the transformer is used in input and output applications. The two coil structure also greatly improves immunity to external magnetic fields from power supplies and motors. Primary and secondary windings are separated by electrostatic shields. The transformer is housed in a mu-metal can.

This product includes our exclusive remote control, more information.


Internal optional exclusive and innovative, Phono MM preamplifier, more information.

Reviewer opinion:

“This is, simply put, a sexy little minx of an amp. And I´ll regards the muting intervals as foreplay.”
“The X250T is one of those ironfirst-in-a-velvet-glove amps that lets you rock or chill as desired”.
– Mr. Ken Kessler, Hi-Fi News, May 2020.

Extraudio – a different concept focused on satisfying audiophile needs.
Extraudio products are unique, handmade and exclusive. They are assembled by hand and can be customized and adjusted to the sound preferred by the user. These products have an authentic, clean sound.

NOTE: All Extraudio products are handmade by craftsmen and can be customized to fit like a tailor-made suit. We undertake a study of the client’s musical preferences and the rest of his or her equipment in order to make a complete adjustment to obtain the synergy and the sound that the listener is seeking.
Don’t hesitate to request more information about our upgrades and accessories.

We work in reverse in Extraudio. We do not take costs or economics of scale into consideration. What we do is to prioritize our clients and the music. This is our philosophy and our greatest differentiating factor.
Our secret is to maintain a very low annual output of our products in order to be able to adjust them perfectly and to dispose of enough time to examine all the details and thus create an exclusive product.
Thus, we can offer the quality an audiophile demands, forgetting about costs and working to achieve quality and an authentic live sound. All the electronic components are selected and matched by hand choosing only those of the highest quality, with the best thermal properties and the most durable that are available on the market. This is our great struggle against inefficient energy and programmed obsolescence.


Frequency response:
20Hz to > 25Khz +0 db
0.5Hz to > 750Khz +/- 6 db

Low Frequency: +0,10db 7Hz
High Frequency: -0,11db 25kHz

Noise level dynamic range / dBA:
Orange version: > 105db

Total harmonic distorsion / THD:
THD+N: 0,0008% @ 1W (8 Ohm, 1Khz)

Main output: 0dB Balanced and RCA output.
Processor AV input: 0dB RCA and XLR output.

Analog inputs / Input impedance:
4 pairs unbalanced RCA + 1 Pair Balanced XLR + Processor AV (RCA and XLR connectors)
120K ohms Balanced, 60K ohms RCA Inputs (6): PHONO, CD, TUNER, AUX (RCA).

Maximum input:

Separation of stereo channels: > -80dB.

Volume (ALPS Blue Beauty Motorized, controlled by microcontroller, 62 volume steps), Select Input, optical rotary encoder (ALPS 18 steps).

Power requirements:
200-240VAC 50/60Hz, Idle 17W – Total 175W – 3W standby power consumption Energy Star & EU specs

44,5 cm W by 12,5 cm H by 39,5 cm D
56,5 cm W by 24 cm H by 52,5 cm D (shipping)

39 lbs. (18 kg) Net; 52 lbs. (24 kg) Shipping.

Max Output Power:
1KHz, THD=1%, All channels driven. Per channel.
Pr: 2 Ω 275Wrms / Pr: 4 Ω 285Wrms / Pr: 8 Ω  150Wrms

These pre-specifications are subject be changed without notice.
EXTRAUDIO, BV The Netherlands


Extraudio’s six power supply sources are specially designed to work with audio signals and have been calculated for audio frequency response.
Extraudio power supplies regulated and non-regulated, low noise and high voltage supplies for audio input stages.
Power supply Audio grade capacitor “Elna, Mundorf and Jantzen”
Automatic 60 seconds warm-up/brown-out mute, controlled by microcontroller.
Extraudio Premium DUAL TR-CORE Transformer 79VA
The Extraudio transformer was designed and built without compromising reliability. It ensures: low radiation, low mechanical vibration, high quality cabling, sand core and no hum, especially for low audio signals.
Extraudio high performance transformers for the conversion of low frequency audio signals unbalanced to balanced and in reverse.


Extraudio chassis are strong and long-lasting and work as a precise technical solution designed to protect and enhance our real sound.
The chassis is a kind of safe box in which, we keep our electronic plaques and eliminate the external interferences and vibrations. The upper parts were built thicker in order to void vibrations and provide with much better interference avoidance. The aluminum used in its building is that of the best aeronautical quality which results in firmness and conductivity.


All the electronic components and pieces are assembled by hand in Europe by fully qualified personnel.
All Orange products incorporate Mundorf/ JANTZEN Audio paper in oil audio grade capacitors Made in Germany and Denmark”
Special relay for low audio signals.
Premium fuses gold audio applications.
Premium Elna, Aluminum electrolytic capacitors and Tantalum capacitors for audio signal.
New very low noise and low voltage audio transistor.
Premium Alps BLUE BEAUTY motor potentiometer for volume control.
Premium Alps rotary encoder.
Gold-plated RCA input.
Internal ground lift switch.
Heavy-duty pure copper-plated speaker terminals WBT “Made in germany”.