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Marantz HD-DAC1 - High Current Audiophile DAC & Headphone Amplifier The Marantz HD-DAC1 is an ultra-high quality headphone amplifier and DAC that delivers exceptional sound clarity and power. Designed with Marantz’s premium Current Feedback amplification technology, it drives high-impedance headphones up to 600 ohms and offers versatile connectivity for audiophiles seeking the ultimate listening experience. Overview Featuring Marantz HDAM-SA2 modules, a high current CS4398 DAC chip, and three-level gain control, the HD-DAC1 delivers powerful, detailed sound with minimal distortion. It supports USB, optical, and coaxial digital inputs, allowing you to stream high-resolution audio from your PC, Mac, or iDevices. The USB-B input operates asynchronously and supports 192kHz/24-bit PCM as well as DSD 2.8MHz and 5.6MHz formats for pristine audio quality. With premium fixed and variable RCA outputs, the HD-DAC1 can connect directly to your Hi-Fi amplifier, active speakers, or power amps. Its solid aluminium front panel, double-layer bottom plate, and retro-style side panels showcase Marantz’s commitment to craftsmanship and durability. Key Features High current headphone amplifier with Current Feedback technology from Marantz Premium 11 Series Drives headphones up to 600 ohms with three-level gain control (low/mid/high) High-performance CS4398 DAC chip for audiophile-grade sound Supports asynchronous USB-B input with 192kHz/24-bit PCM and DSD 2.8 / 5.6 MHz streaming Optical and coaxial digital inputs plus analog input for versatile connectivity Premium fixed and variable RCA outputs for connection to amplifiers or active speakers Jitter reducer and dual clock for extreme timing accuracy Ground isolator to eliminate high-frequency noise from computers Compatible with iPod® and iPhone® via front USB port Stylish Marantz Porthole Display shows volume, input, and resolution info Robust build with solid aluminium front and retro side panels Specifications DAC Operation Mode: USB / Coaxial / Optical Asynchronous USB-B Rear Input Bit-perfect Transmission USB-B DSD Audio Streaming: DSD 2.8 / 5.6 MHz Ground Isolator for DAC Mode Operation Headphone Output with Volume and Gain Control (Low / Mid / High) Analog Input: 1 Analog Output (Fixed / Variable): Yes Digital Optical In / Out: 2 / 0 Digital Coaxial In / Out: 1 / 0 Sample Rate Digital Input: 192kHz / 24-bit Gold Plated Cinch Connectors Front USB Input (iPod® / iPhone® Compatible) D-Bus Control Frequency Response: 2 Hz – 20 kHz Signal to Noise Ratio: 106 dB Total Harmonic Distortion: 0.0012% Channel Separation: 100 dB Headphone Power: 800 mW / 32 ohm HDAM Version: HDAM + HDAM SA2