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Why doesn’t the NADAC L adopt traditional digitally controlled volume solutions ?
Conventional digitally controlled volume schemes usually fall into three categories: Potentiometer + Stepper Motor – Simple and easy to control, but prone to left–right channel imbalance and limited separation. Relay Array – Preserves signal integrity, but frequent relay switching produces audible clicks and high-frequency noise. Electronic Volume Chips – Inexpensive and simple, but their integrated…
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NADAC L features a Peak Level Meter. Does that mean it uses digital volume control ?
Not at all. NADAC L is a digitally controlled analog preamplifier. Its audio signal path for volume adjustment is 100% analog, while digital circuitry is used only for precision control and monitoring. This unique design ensures that the sound remains absolutely authentic and pure. The Peak Level Meter employs an ADC to sample the incoming…
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Where can I find detailed NADAC L specifications ?
Please refer to https://www.master-fidelity.com/nadac-l/#specifications
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What makes NADAC L so special and better than any other Preamplifier ?
Building on the efforts of Master Fidelity to design solutions based on custom made Digitally controlled Analog components, NADAC L has been imagined in this perspective, not only to offer unique features but also to maintain the NADAC D exceptional sound quality output in the following audio chain up to the Amplifier. Please refer to…
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What is the relationship between jitter and phase noise ?
Jitter and phase noise are essentially manifestations of the same physical phenomenon in two different domains (time domain vs. frequency domain), and they can be converted to each other through mathematical transformations. In a nutshell, phase noise is the “spectral view” of jitter in the frequency domain, while jitter is the “accumulated result” of phase…
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What is the relationship between jitter and frequency accuracy ?
There’s no strong correlation between jitter and frequency accuracy. Many people confuse jitter with frequency accuracy, believing that higher frequency accuracy means better sound quality. This is a misconception. Jitter refers to the short-term instability of a clock signal in the time domain, manifesting as random or periodic deviations of signal edges relative to their…
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Where can I find detailed NADAC C specifications ?
Please refer to https://www.master-fidelity.com/nadac-c/#specifications
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What makes NADAC C so special and better than any other Clock ?
Most of the competition clocks on market, being atomic clocks, ordinary active crystal oscillators, temperature-compensated crystal oscillators, and oven-controlled crystal oscillators, are focusing on frequency accuracy. NADAC C unique mastery is about low jitter and low phase noise which is the fundamental factor impacting sound quality and key a proper True 1-bit Digital to Analog…
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What is the relationship between the clock recovery module and the 10MHz clock signal provided by the NADAC C ?
The primary purpose of the NADAC C’s 10 MHz reference is to reduce long-term timing variations such as wander and drift, thereby maintaining the fundamental sonic quality of the system. The [MF Advanced Clock Data Recovery System] locks onto this 10 MHz baseline and further refines it to generate the final Audio Master Clock that…
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What is the NADAC D Clock Recovery module and why is it fundamental, for both AES and USB inputs ?
In the AES protocol, the audio clock signal is embedded and carried from the source device. In NADAC-D, the AES input retrieves this clock signal and routes it into our [MF Advanced Clock Data Recovery System], which synthesizes a new, high-quality internal clock that drives the DAC. With USB, things are quite different. USB audio…


