Audio Note Unveils IZVOR: The First Discrete Ladder DAC Module with Premium Analog Components

Elevate your digital audio experience with Audio Note’s groundbreaking IZVOR discrete ladder DAC technology.

A New Era Dawns in Audio Note’s Digital Audio Journey

If you’ve ever been captivated by the warm glow and rich tones of Audio Note’s vacuum tube amplifiers, get ready—2026 is truly a milestone year for this legendary British brand. Known for their analogue-centric designs that have wooed audiophiles worldwide, Audio Note (UK) Ltd. is turning heads once again with the IZVOR digital-to-analog converter (DAC).

IZVOR (pronounced is-vor), a Slavic word meaning “source, spring, or well,” isn’t just another DAC. This is a complete rethink from the ground up—a discrete ladder DAC module crafted with premium-grade resistors replacing typical DAC chips. It’s a bold leap that promises to quench audiophiles’ thirst for the purest digital sound, flowing naturally from the “source” itself.

Inside Audio Note’s DAC5 — a precursor to the IZVOR’s discrete design

The Legacy of Audio Note’s Digital Audio Innovations

Flashback to 1992: Audio Note shook the digital audio world with their original DAC3. This wasn’t just another DAC—it featured a patented transformer/filter interface that unlocked sonic details hidden on CDs, revealing layers of sound many thought unreachable.

Then in 1996 came the DAC5, the trailblazing first-ever non-oversampling (NOS) DAC. This device challenged conventions by nixing oversampling and digital filtering, which were then industry staples. This “Direct from Disc” approach eradicated the harshness and blandness often associated with digital audio, delivering a more natural, fatigue-free listening experience. Soon, other brands began to take notice and adopt similar philosophies.

Since then, Audio Note’s DACs have stuck to an R2R chip foundation without oversampling, filtering, or jitter correction. But they never stopped pushing the envelope.

Enter IZVOR: The Ultimate Expression of Purist Digital Design

For over a decade, Audio Note has quietly been developing the technology behind IZVOR. This DAC module takes their purist approach to a new extreme—ditching the DAC chip entirely and embracing a fully discrete ladder DAC architecture.

While other companies have toyed with discrete ladder designs, Audio Note’s approach is unique. With seemingly limitless R&D resources, their team meticulously scrutinized every aspect of ladder DAC topology. The results? A true paradigm shift.

“Affording our design team near-limitless R&D resources allowed us to interrogate every facet of ladder DAC topology,” says Peter Qvortrup, Audio Note (UK)’s founder. “After twelve years of refinement, every stage of the IZVOR has been validated through rigorous empirical testing and, crucially, critical listening.”

The Analog Heartbeat of IZVOR: Premium Components and Bespoke Resistors

What’s truly revolutionary here is Audio Note’s commitment to component quality. The company realized that many ladder DACs on the market are bottlenecked by the quality of their resistor arrays. So, they asked a simple but profound question: if we want a ladder DAC to sound analog, why build it like a computer?

Instead, they chose to use the same caliber of resistors found in their revered phono stages. IZVOR’s chief designer, Darko Greguras, explains that the harmony and complementary properties of components are key to musicality, much like crafting a fine musical instrument.

“By designing an architecture that allowed for larger resistors, I was able to fine-tune the voicing from a greater range of Audio Note parts. We even designed an entirely new resistor specifically for this project,” he shares.

Crafting sonic perfection: Custom-built resistors at the core of IZVOR’s sound

During development, virtually every resistor type currently available was auditioned. They discovered that standard 5-watt resistors introduced subtle temporal blurring, which can wash out details in music. The solution? Custom 1-watt resistors made to super-tight tolerances of less than 1%, paired with proprietary DAC code written in-house by Andrejs Dmuhovskis and Darko Greguras.

The result is nothing short of spectacular.

Early Buzz: A Digital Audio Revelation

First private demos and international audio showings are already causing a stir. Audiophiles and reviewers alike praise the IZVOR for its:

• Palpable sense of realism
• Startling lack of digital artifacts
• Ability to render complex textures with nearly analog warmth

It’s like rediscovering your favorite recordings all over again—fresh, vivid, and emotionally engaging.

Integrating IZVOR Across Audio Note’s Flagship DACs

The IZVOR module won’t live in isolation. Audio Note is incorporating this groundbreaking technology into its flagship lineup, including:

• The Fifth Element
• DAC5
• DAC4.1 Balanced models

What’s more, existing owners of these DACs can upgrade to the IZVOR technology, ensuring loyal fans aren’t left behind. Pricing is available through authorized Audio Note dealers worldwide.

Final Notes: A Source Worth Waiting For

Audio Note’s IZVOR isn’t just a DAC; it’s a manifesto of dedication to pure, analogue-like digital sound. After decades of pioneering, the company’s vision has matured into an astonishingly musical digital device that defies the usual compromises of digital audio.

If you’re a fan of high-fidelity sound with a soul, IZVOR beckons as the new spring, the source of digital audio’s next leap forward.

FAQ

• What makes the IZVOR DAC different from other ladder DACs?
  IZVOR replaces the typical DAC chip entirely with a discrete ladder DAC built from bespoke, premium resistors designed to match analogue phono stage quality.
• How long did development of the IZVOR take?
  Over twelve years of research, development, and iterative refinement.
• Can existing Audio Note DAC owners upgrade to IZVOR technology?
  Yes, upgrades are available for the Fifth Element, DAC5, and DAC4.1 Balanced models.
• What is the significance of not using oversampling or filtering in Audio Note DACs?
  It removes common digital harshness and preserves natural musical textures, creating a more fatigue-free and analog-like sound.
• Who are the key contributors behind the IZVOR’s design?
  Peter Qvortrup led the project, with significant contributions from designer Darko Greguras and coder Andrejs Dmuhovskis.

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