Marantz HD-DAC1 Headphone Amplifier with DAC-mode

• plays PCM digital audio sources up to 24-bit/192kHz
• back-panel USB port allows decoding of Direct Stream Digital (DSD) files at 2.8MHz or 5.6MHz resolution
• front-panel USB input plays USB memory devices (MP3/WMA/AAC/WAV) and iPod®/iPhone®
• high-performance 24-bit/192kHz Cirrus Logic CS4398 digital-to-analog converter for precise playback of digital music files
• built-in high-performance headphone amplifier with front-panel volume control
• three-position gain switch optimizes performance with low-, medium-, and high-impedance headphones
• preamp mode with fixed and variable RCA outputs for connection to an outboard power amp or self-amplified speakers
• asynchronous USB technology for reduced timing jitter and better sound on USB input
• jitter remover and dual master clocks used to minimize jitter
• Marantz HDAM® (Hyper Dynamic Amplifier Module) and HDAM-SA2 modules used in analog circuitry for faster signal transfer and better transient response
• ground isolator for USB DAC mode operation eliminates noise from computer connection
• vibration-resistant solid aluminum front panel and double-layer bottom plate
• simulated wood-grain side panels for a cool retro look
• wireless remote

Inputs:

• rear-panel USB (Type B) port for connection to a computer
• front-panel USB (Type A) port for connecting USB memory devices and iPod/iPhone
• optical digital audio (2)
• coaxial digital audio
• minijack (3.5mm) analog audio

Outputs:

• fixed line-level stereo RCA audio
• variable line-level stereo RCA audio
• full-size 1/4" headphone jack (compatible with headphones up to 600 ohms impedance)
• RCA remote control input/output (for use with Marantz components with a compatible remote control in/out jack)

Other Info & Specs:

• supported sample rates for rear-panel USB input: up to 24-bit/192kHz PCM; 2.8MHz (DSD64) and 5.6MHz (DSD128)
• supported files and bit rates for front-panel USB input: MP3 (up to 48kHz; 32-320kbps), WMA (up to 48kHz; 48-320kbps), AAC (up to 48kHz; 64-192kbps), WAV (up to 48kHz/16-bit)
• supported sample rates for coaxial and optical inputs: up 24-bit/192kHz PCM
• recommended operating systems: Windows® Vista, Windows 7, Windows 8, Windows 8.1 and Mac® OS X® 10.6.3 or later
• USB Audio 2.0 driver required for high-resolution audio playback on Windows computers 
• headphone amplifier power output: 800mW into 32 ohms
• frequency response: 2-50,000 Hz (-3 dB)
• THD: 0.0012% (at 1kHz)
• signal-to-noise ratio: 106 dB
• channel separation: 100 dB
• 9-7/8"W x 3-9/16"H x 12-3/8"D
• weight: 11 lbs.