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What are the special features of the NADAC L’s mode selection ?
NADAC L offers five different modes specifically designed for advanced systems supporting bi-amp and tri-amp configurations with ease. This makes it ideally suited for multi-driver loudspeaker setups and complex high-end systems. In practice, this means that NADAC L can integrate seamlessly into demanding installations while preserving the integrity of its 100% analog architecture
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Why doesn’t the NADAC L include amplification ?
NADAC L is designed as a pure attenuation preamplifier. Modern DACs and phono stages already deliver sufficient voltage output; the primary role of a preamplifier is to attenuate the signal to match amplifier sensitivity, not to amplify it further. By remaining 100% analog and focused solely on precise attenuation, the NADAC L avoids unnecessary amplification…
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Why is there a relay sound at the –8 dB volume position ?
At –8 dB, a rarely used setting, the NADAC L engages a hardware relay using a “gear-shift” concept borrowed from precision measurement instruments. This ensures that even under conditions of high attenuation, the signal path maintains ultra-low noise performance. It is one more safeguard ensuring that the full analog path remains uncompromised at every level…
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What is Precision AC-Coupling in the NADAC L ?
NADAC L uses AC input coupling with ultra-low dissipation factor film capacitors, carefully matched for precision. Each capacitor pair is measured using a Keysight E4990A impedance analyzer across the 20 Hz – 1 MHz range to ensure channel consistency. This meticulous process guarantees perfect left–right channel matching and absolute transparency, preserving the integrity of its…
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Does NADAC L use a switching power supply or a linear power supply ?
The analog stage of the NADAC L is powered by a high-performance linear transformer power supply. In practice, less than 10% of its rated capacity is used, guaranteeing ample headroom for stable dynamics and ultra-low noise. For the control stage, a high efficiency switching power supply is employed. Digital circuits demand higher current, and transformer…
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What is the background and heritage of the NADAC L ?
NADAC L is not a product created in isolation. Its two lead designers previously developed audio analyzers and studio-grade monitor controllers. This deep background means that NADAC L is both a technical and artistic achievement, excelling in objective measurements and in subjective listening. As a result, it stands as a fully analog preamplifier that balances…
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What volume control scheme does the NADAC L use, and what are its technical advantages ?
NADAC L uses a custom-designed electronic switching chip developed by the MF engineering team and fabricated at a leading European IC foundry using a special low-noise process. Functionally, it is a click-noise-free alternative to mechanical relays, combined with ultra-low TCR precision resistors for pure, transparent performance. With thermal drift reduced to virtually zero, the volume…
