Master Fidelity

The approach

Master Fidelity approaches digital reproduction as a complete time-critical system. Developed in Canada by a team with deep experience in professional and high-performance digital audio, the NADAC family brings together true one-bit conversion, master clocking, music-server architecture, and line-level control within a deliberately unified platform.

Engineering Philosophy

Master Fidelity’s work begins with the premise that digital accuracy depends on more than recovering the correct data. Timing, clock behavior, power-supply stability, signal transmission, and the relationship among source, converter, and control components all influence the integrity of the result.

The NADAC D digital-to-analog converter uses a proprietary native true one-bit architecture rather than relying on a conventional off-the-shelf converter chip. Its design combines specialized conversion, clock recovery, isolation, USB implementation, and power management as parts of one system.

NADAC C establishes a high-precision master-clock reference intended to reduce jitter, phase noise, wander, and drift across compatible digital components. NADAC S extends the same philosophy to the music server, allowing source, clock, and converter to operate within a coordinated time domain. NADAC L applies the platform’s ground-up approach to line-level control and system integration.

The products are distinct, but their purpose is cumulative: to control the digital chain from source generation through conversion and analog delivery rather than addressing each stage in isolation.

Listening Experience

Master Fidelity is most persuasive in the way it reduces the familiar separation between digital precision and musical continuity. Information is presented with clarity and stability, yet the result is not clinical or mechanically outlined. Images occupy convincing space, low-level relationships remain intact, and timing feels coherent across the entire presentation.

The NADAC system’s strength is not an added sonic character. It is the sense that digital reproduction has become calmer, more continuous, and less self-conscious — allowing tone, texture, scale, and phrasing to emerge without drawing attention to the conversion process.

GTT’s Perspective

GTT represents Master Fidelity throughout North America because its engineering addresses digital playback at the level where reference systems are actually won or lost: conversion architecture, time-domain behavior, power stability, signal transmission, and system-wide integration.

The NADAC family is not simply another collection of digital components. It is a coherent platform that allows GTT to build the digital source as a complete system and to match its server, clock, converter, line stage, network, and associated electronics deliberately.

For clients seeking the highest level of digital reproduction, Master Fidelity has become one of GTT’s most important references. GTT’s role is to determine the appropriate NADAC configuration, integrate it with the complete system, and ensure that its technical sophistication translates into a natural and enduring musical result.

GTT Perspectives & Reference Notes

These notes go further into the range, and into how it behaves in a system.

• NADAC C · GTT Perspective →

  The NADAC C gives the Master Fidelity digital system a stable 10 MHz reference — controlling the time domain before NADAC D’s internal clock-recovery architecture generates the final conversion clocks.

• NADAC D · GTT Perspective →

  The NADAC D is Master Fidelity’s native true one-bit converter — built around a custom ASIC, its clock architecture, and a power-reference system engineered as one problem with the conversion itself.

• NADAC S · GTT Perspective →

  The NADAC S is Master Fidelity’s music server — built so the digital source locks to the 10 MHz reference the NADAC C master clock generates, instead of sitting outside the system keeping time of its own.