Ultrafide Audio is taking its pro-sound-to-home revolution further with the launch of its debut integrated amplifier, the ENSO (INT-125).

Flexible, scalable and musical, the ENSO is designed to be the centre of your sound. Its name is inspired by the Japanese enso circle, symbolising completeness, unity and balance - reflected in both its sonic character and minimalist aesthetic.

The ENSO delivers 125 watts per channel into 8 ohms, or 2 × 250 watts into 4 ohms, based on Ultrafide’s trademark UltraSigma output topology. Features include pre-amplifier controls, tone adjustments, an OLED display, a stereo Class AB headphone amplifier, high quality adjustable MM phono stage, and full remote control functionality.

The ENSO (INT-125) launches today (11 February 2026) and will be unveiled publicly for the first time at the Bristol Hi-Fi Show 2026, taking place 20–22 February in Room 314.

Designed to give listeners complete control

The team behind the pioneering British brand - the Hi-Fi arm of MC² Audio and XTA Electronics - firmly believes the ENSO INT-125 lets you focus on and enjoy your music, your way.

Retailing at £3,500 (inc. VAT), the ENSO features a linear toroidal power supply and draws on technology previously showcased in Ultrafide’s widely acclaimed U500DC and SP500 power amplifiers. The result is superior audio performance with a clear focus on sonic purity, headroom and musicality.

The preamplifier section includes an OLED screen with remote control - as found on Ultrafide’s U4PRE - alongside ±8dB bass and treble controls designed by Pro Audio industry EQ legend Alex Cooper, the mastermind behind all Ultrafide product development.

One of the ENSO’s standout features is its send/return pre-out & power-in, making the amplifier highly scalable. Users can operate the unit as standard, with passively driven loudspeakers or switch to a multi-amp / fully active system with external equalisation if desired, offering complete flexibility to enjoy music their way.

Housed in Ultrafide’s customary elegant, minimalist chassis, the ENSO is a standard 17” (42 cm) width, making it easy to integrate into any Hi-Fi setup.

Mark Bailey, product specialist at Ultrafide Audio and MC², said:

“The ENSO (INT-125) is a huge moment for the Ultrafide brand. It’s a flexible and powerful integrated amplifier that lets you focus on the music. Having been asked for this by many customers since our inception, we are pleased to offer a competitive price point - driven by our mission to make exceptional audio accessible.

“The ENSO INT-125 is also all about giving listeners flexibility and control, whether they’re running loudspeakers passively, or using external equalisation - ENSO gives the ability to do things your way. Plus, the range will be expanding with complimentary products, so watch this space! 

“ENSO makes use of the best technology from our U500DC and SP500 power amplifiers, as well as our U4PRE preamplifier - offering a single, complete and unified solution for the home, with everything connecting harmoniously as one.

“We can’t wait to formally unveil the INT-125 at this year’s Bristol Hi-Fi Show. Make sure you come to Room 314 and hear it for yourself - we’ll be taking music requests so you can test it with your favourite tracks.

“Remember: pro sound is homebound!”

Ultrafide stands for Ultra-Fidelity Audio. Building on parent company MC²’s three decades of pioneering work in live and studio sound, the brand is now laser-focused on the domestic Hi-Fi market.

With no application constraints, logistical hurdles or compromises, Ultrafide applies the very best engineering, design and components to deliver the finest possible sound for the home.

Lead product designer, audio engineer and pro-audio legend Alex Cooper was given a blank canvas for Ultrafide products, with freedom to over-engineer purely in pursuit of audio quality, sonic purity and unrivalled stereo imaging. The result is exceptional headroom, high-end definition and authoritative low-frequency performance.

The ENSO’s unveiling follows a stellar 2025 for Ultrafide Audio, including the launch of the DIAS high-power amplifier and the more accessible SP500, leading to exports to over 20 countries from the company’s UK base, where all products are designed and manufactured.

Ultrafide will be exhibiting in Room 314 at the 2026 Bristol Hi-Fi Show (20–22 February), where the ENSO will be showcased alongside Kudos Titan 505 loudspeakers.

For more information, please visit https://ultrafideaudio.co.uk.

 

About Ultrafide Audio

Ultrafide Audio is the new Hi-Fi and audiophile brand from British pro-audio manufacturers MC² Audio and XTA Electronics.

Operating since 1993, the company’s expertise and passion have been channelled into Ultrafide following decades of groundbreaking work. This includes supplying 20+ amplifiers for the legendary Air studios, audio processors for NASA, 50+ amplifiers for the main stage at Glastonbury, and much more.

The company has truly earned its reputation as a top-level industry player, with sonic qualities at the forefront of its operation.

The team consists of head designer and pro audio legend Alex Cooper, General Manager Robert Bradshaw-Smith, sales/commercial representatives - Mark Bailey, Richard Fleming, and Andy Oattes. This is all overseen by owners and pro audio icons Terry Clarke and John Austin.

Ultrafide’s mission is to bring the heart and soul of live and professional audio into the home — a vision shaped by years of customer demand worldwide.