DIA-250 High End
Integrated Amplifier/DAC

The Gato Audio DIA-250 Integrated Amplifier with digital inputs is designed and built to a vision of combining technology, power, sonic performance, connectivity, versatility, stunning looks and compact design.

Class-D with smooth
analogue music

The DIA-250 amplifier offers a state of the art Class-D output stage with dedicated and optimized switch mode power supplies. The multiple stage power amplifier is built around proven technology from International Rectifier, optimized with a precision high frequency oscillator and PWM modulator. A pair of precision switching MOS-FET transistors, with super low on-resistance ensures the high frequency switching is done perfectly and with as little loss as possible. The output filters are made from quality PP capacitors and low DCR coils, converting the high power PWM signals back into detailed and smooth analogue music.

More than just an Amp

The built-in D/A converter offers real high end performance, enabled by the use of a dedicated power supply, a balanced-drive Burr-Brown PCM1794 D/A converter, an optimized high bandwidth I/V converter, and an analogue stage with low-Q, low pass filters. All digital inputs are upsampled to 24bit/192kHz. This D/A converter will upgrade any digital source - such as wired or wireless streaming from your computer or CD drive - to a high end level of detail and musical performance.

Versatility and Connectivity

We had our eye on versatility and connectivity when designing this amplifier. The DIA-250 offers not only a wide range of digital and analogue inputs, but also line outputs, a trigger signal for external power amplifiers, and a configurable home theater input. The HT input can turn the amplifier into a fixed level power amplifier for use in a surround setup, without compromising the sonic performance.

Upgrade your DIA-250 to a S model

The S is for Super! Upgrade your DIA-250 to a S model. We changed and improved the electrical circuits and layouts in more than twenty ways. Read more about the S upgrade here.


  • 2x 250W@8ohm / 2x 500W@4ohm
  • Class D output stage
  • Built in 24bit/192kHz D/A converter with upsampling
  • Coax and asynchronous USB digital input up to 24bit/192kHz, optical up to 24bit/96kHz
  • Accepts digital streaming directly from Apple iPhone or iPad
  • Two unbalanced and one balanced inputs
  • Nonmagnetic enclosure
  • Direct function; enables use in home theater sytems
  • Designed, developed and build in Copenhagen, Denmark

    • Technical stuff

      • Output power 2x 250 W / 8 Ω - 2x 500 W / 4 Ω
        Frequency response 20 Hz-20 kHz - 0.5 dB, and 2 Hz-70 kHz - 3 dB
        Total Harmonic Distortion < 0,01% at rated power
        Signal to noise ratio > 110 dB
        Line out maximum level 13V balanced, 6,5V unbalanced
        Total Harmonic Distortion < 0,001% pre out
        Input impedance 20 kΩ RCA or 40 kΩ Balanced
        Line output impedance 75 Ω
        Voltage gain 26 dB (+10 db headroom)
        Recommended speaker load 4 -16 Ω


        Balanced analogue inputs 1 pair gold plated XLR Neutrik
        Unbalanced analogue inputs 2 pairs of gold plated RCA Stereo
        Digital inputs 1 pc USB type B, 1 pc Toslink, 1 pc RCA
        Balanced analogue outputs 1 pair gold plated XLR Neutrik
        Unbalanced analogue outputs 1 pair of gold plated RCA Stereo
        Speaker output 2 pairs of gold plated safety banana
        Trigger, 12 V 1 pc mini jack

        Size & Power

        Power Requirements 115 VAC/230 VAC, 50 Hz/60 Hz, 1000W max
        Power consumption stdb/idle/max < 1W/23W/1000W
        Dimensions (WxHxD) 325 x 105 x 420 mm / 12.8 x 4.1 x 16.5"
        Weight 10 kg / 22 lb
    • Reviews

      • Gato Audio DIA-250 review

        HXOS Plus, Greece
        November 2014

        Original language: Greek

        Gato Audio DIA-250 review

        HIFI Stars, Germany
        August 2014

        Original language: German

        Gato Audio DIA-250 review

        Fidelity Magazine, Norway
        July 2014

        Original language: Norwegian

        "Close to a Sensation!"
        Gato Audio DIA-250 review

        Watt Magazine, Norway
        February 2014

        Original language: Norwegian

        Recommended Award - "A brilliant amplifier with its gorgeous design, flexibility and especially the fantastic sound is nothing less than a bargain."
        Gato Audio DIA-250 review

        Haute Fidélité, France
        January 2014

        Original language: French

        Best Buy Award
        Gato Audio DIA-250 review

        CultureHD Magazine, France
        February 2014

        Original language: French

        Gato Audio DIA-250 review

        Tone Audio Magazine, USA
        November 2013

        Original language: English

        "A Danish Triumph of Style and Function. The Gato Audio DIA-250 ticks all the boxes: It's compact and gorgeous, and it sounds great—and, best of all, it's priced right."
        Gato Audio DIA-250 review

        6moons.com, online
        September 2013

        Original language: English

        Blue Moon Award - "...yummy on all fronts, highly desirable and a fine specimen of intelligent integration, superb industrial design and a latest-gen class D implementation which further credits why this breed is not only here to stay but at least in the high-power sector predestined to dominate."
        Gato Audio DIA-250 review

        HiFi Wigwam, UK
        September 2013

        Original language: English

        "It's hugely practical, has huge WAF (Wife acceptance factor), has power enough to drive almost any transducer and sounds utterly stunning. This is an uncommonly good bit of kit. Some companies are destined to succeed, even in this tough climate for HiFi. Gato has to be one such company."