Description
TOPPING DX9 Discrete: The Apex of All-In-One Hi-Fi Performance
The TOPPING DX9 Discrete is a true audio engineering masterpiece, combining a flagship-grade DAC and a fully discrete headphone amplifier into a single, cohesive unit. DX9 is built for the purist, delivering an uncompromised, reference-quality listening experience that pushes the boundaries of measurable and audible fidelity.
The Discrete Difference: Ultimate Purity and Power
The "Discrete" in the DX9 refers to its sophisticated, non-integrated operational amplifier circuits—a sign of uncompromising design.
Flagship AKM AK4499EQ DAC Chip
The DX9 features the legendary AKM AK4499EQ DAC chip at its core. This chip is celebrated for its musicality and unparalleled dynamic performance. Combined with a dedicated power supply and signal path, the DX4 achieves an astonishingly low Total Harmonic Distortion plus Noise ($\text{THD+N}$) of less than $0.00007\%$, setting a new benchmark for low-distortion performance.
Fully Discrete NFCA Headphone Amplifier
The headphone amplification section utilizes TOPPING's advanced NFCA (Nested Feedback Composite Amplifier) architecture, implemented with a fully discrete circuit design. This allows for precise tuning and optimization, ensuring massive power output (up to $6000\text{mW}$ per channel) with an exceptionally dark background and pristine clarity, ready to drive even the most demanding planar magnetic headphones.
Versatility: Connectivity and Precision
The DX9 is equipped to handle complex audio environments, serving as a powerful preamp and digital hub.
Integrated High-End Preamplifier
The unit functions as a state-of-the-art Preamplifier with ultra-low noise and precise volume control, allowing it to drive external active monitors or dedicated power amplifiers, such as the TOPPING A90 Discrete Headphone Amp, with flawless signal integrity.
Comprehensive Digital and Analog Inputs
The DX9 offers a wide array of input options, including USB, Coaxial, Optical, and AES/EBU, ensuring compatibility with virtually any digital source. For wireless convenience, it integrates Bluetooth 5.1 with LDAC high-resolution streaming support.
Professional Controls and Build
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Advanced Power Management: The unit features a custom-designed, low-noise linear and switching hybrid power supply, ensuring stable, clean power delivery across all discrete components.
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Dual Output Options: Provides Balanced XLR and Single-Ended RCA outputs, both usable as pure DAC outputs or variable preamplifier outputs.
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Precision Volume Control: Utilizes a highly accurate relay-based volume control system for perfect channel matching across the entire volume range.
