Marantz NA-7004 Network audio player/USB DAC

5 Star Rated ..I rarely use this in a second system so I’m selling it. It has a full five star rating from What HIFi and has an excellent DAC with digital inputs and outputs Its Airplay enabled and is in excellent working condition. I’ve used it mostly for airplay and Pandora. It has a tiny thin hairline scratch on the top center I can only see at the right angle with a bright light and doesn’t show up well on camera at all as you can see. From a clean non-smoking house.
plays music from your computer, your iPod, and the Internet on your home audio system
connects to your wired home network
Apple AirPlay®-ready with free firmware upgrade from Marantz — ultra-convenient iTunes® music playback
Cirrus CS4398 stereo D/A converter renders digital sources up to 24-bit/192kHz with musical warmth, detail, and resolution
supports playback of WMA, MP3, MPEG-4, AAC, WAV, and FLAC files
plays Internet radio stations
plays songs from Rhapsody music service (subscription required)
plays personalized PANDORA® Internet radio stations (subscription required)
DLNA-certified — plays music stored on a DLNA-compatible Windows® PC
Marantz Dynamic Audio eXpander (M-DAX) improves the sound quality of compressed audio sources
Connections:
Ethernet port for a high-speed connection to a home network
optical and coaxial digital audio inputs
optical and coaxial digital audio outputs
stereo analog audio outputs for connecting to a receiver or amplifier
2 USB audio inputs (iPod-compatible front-panel Type A, rear-panel Type B)
full-sized headphone output with volume control
RS-232C port for use with home automation systems and for possible future downloads
remote control
detachable power cord
Audio Features

Quality Construction: The Marantz NA7004 Network Audio Player features a double-layered chassis and uses four large rubber feet to resist vibration.

HDAM SA2 Circuits: In the analog section of the NA7004 are Marantz-proprietary HDAM SA2 circuits that handle critical buffering and stage-to-stage signal transition.

Symmetrical Audio Circuitry: Symmetrical signal traces help maintain perfect synchronization between Left and Right channels for rock-stable imaging and a convincing soundstage.

Impedance Matching Copper Plate: An impedance-matching copper plate inside the rear panel just behind the analog outputs improves signal-to-noise performance and channel separation to preserve the NA7004's outstanding imaging capabilities.

High-Grade D/A Converter: The Marantz NA7004 employs a Cirrus Logic advanced D/A converter (CS4398) for superb high-fidelity audio playback (2Hz-96kHz). The Cirrus CS4398 stereo D/A Converter offers several advantages. An advanced multi-bit Delta-Sigma architecture handles 24-bit/192kHz digital signals, and boasts extraordinary dynamic range (up to 110db) as well as equally exceptional signal-to-noise performance (up to 110dB) so your digital music files provide the warmth, detail, and resolution you demand.

M-DAX: The Marantz Dynamic Audio eXpander (M-DAX) makes up for lost audio content in compressed audio sources (from lossy compression) during playback. You can choose from on of the following M-DAX levels - High, Mid, Low, or Off.

Analog & Digital Outputs: The Marantz Network Audio Player features both analog & digital audio outputs.

Analog Output: The Marantz NA7004 is equipped with a set of stereo audio RCA outputs to connect the unit to your home stereo receiver. The analog output will transfer network, USB, and iPod/iPhone audio content to your home stereo receiver.
Digital Outputs: The Marantz NA7004 Network Audio Player is equipped with two digital audio outputs (1 coaxial/1 optical) to connect the unit to your home theater receiver. These digital outputs will transfer network, USB, and iPod/iPhone audio content to your home theater receiver.
Headphone Output: The Marantz NA7004 features a high-grade headphone circuit and front-panel 1/4" headphone output. The headphone output includes a high-speed current buffer circuit for minimal interference with the main audio output circuit, resulting in maximum articulation, stability, and fatigue-free listening. The headphone output has its own volume level adjustment.

Network Functions

Network Connection: You can connect the NA7004's RJ-45 (LAN) Ethernet port to your home's network and playback music files that are stored on your computer. You can also listen to internet radio through the network audio player's network connection.

Note: This unit's RJ-45 Ethernet port supports 10BASE-T/100BASE-TX and requires an Ethernet (LAN) category 5 or higher cable, Router, Modem, and Internet connection.
DLNA Certified: The NA7004's Ethernet connection is DLNA (Digital Living Network Alliance) 1.5 and Windows 7 compliant for audio networking. This means it's easier for you to access and enjoy digital music stored on your PC. You can use your PC to play high-bit rate music content through your audio system, or use the NA7004 to browse and play music files on your hard drive.

Media Player: The Marantz NA7004 lets you play music files stored on your computer via a network connection. MP3, WMA, AAC , WAV, and FLAC audio files stored on your computer can be played through the Marantz NA7004 via its network connection. You can control playback of your streamed audio files from the NA7004's remote control. The player also supports ID3-Tag (ver.2) and WMA META tag information so song title, artist name, and album name can be displayed the unit's front-panel display. The NA7004 supports the following audio formats, sampling frequencies, and bit rates via its network connection.

Compatible Formats Sampling Frequencies Bit rate Extension
WMA (Windows Media Audio) 32/44.1/48 kHz 48-192 kbps .wma
MP3 (MPEG-1 Audio Layer-3) 32/44.1/48 kHz 32-320 kbps .mp3
WAV 32/44.1/48 kHz 16-bit .wav
MPEG-4 AAC 32/44.1/48 kHz 16-320 kbps .aac/.m4a/.mp4
FLAC (Free Lossless Audio Codec) 32/44.1/48/96 kHz 16/20/24-bit .flac
Note: Your computer must meet the following system requirements - Windows Media Player Network Sharing Service or Windows Media DRM10. Album Art is only displayed when using Windows Media Player (ver.11)
Internet Radio: The Marantz NA7004 lets you access Internet Radio stations from around the world. Internet Radio stations in MP3 and WMA format are supported. You can choose from thousands of Internet Radio stations and sort them by genre and region. You can store up to 56 Internet Radio stations as presets. You can listen to your favorite music through the following Internet Radio services - Rhapsody, Napster, and Pandora.

Napster: The monthly music subscription service Napster is accessible. You can search for particular tracks (by artist, album, or song) on Napster and register your favorite tracks to the "My Napster Library".
Pandora: Once the network audio player is registered with your Pandora account, you can listen to the automated music recommendation and Internet Radio service. You can create up to 100 personalized radio stations. You can sort tracks within these radio stations. You can skip up to 6 tracks that are being played back within 1 hour.
Rhapsody: Rhapsody is another paid music broadcast service accessible through the network audio player. You can search for particular tracks (by artist, album, or song) on Rhapsody and register your favorite tracks to "My Library". You can also search for similar music to the music you are currently listening to.
Note: This network audio player's Internet Radio Station list is created using a free radio station database service (vTuner). This database service provides a list edited and created for this unit. Not available in all countries.
USB Functions

USB Audio Playback: The Marantz NA7004 is equipped with a front-panel USB (type-A) port for easy, direct connection of a USB Mass Storage Class (MSC) device and USB Media Transfer Protocol (MTP) device with audio files. The front-panel USB (type-A) port supports playback of MP3, WMA, AAC, WAV, and FLAC audio files recorded in FAT 16 or FAT 32 onto a USB (MSC/MTP) device. You can control music playback from the Network Audio Player and remote control. The unit also supports ID3-Tag (ver.2) and WMA META tag information so song title, artist name, album name can be displayed the unit's front-panel display.

USB Computer Connection: You can connect a computer to the unit's rear-panel USB (type-B) port to playback music stored on your Windows PC or Mac computer. The rear-panel USB (type-B) port supports playback of MP3, WMA, AAC, WAV, and FLAC audio files stored on your desktop computer or laptop. You can control music playback from the NA7004 and remote control. The Network Audio Player also supports ID3-Tag (ver.2) and WMA META tag information so song title, artist name, album name can be displayed the unit's front-panel display.

Compatible Audio Formats: The NA7004 supports the following audio formats, sampling frequencies, and bit rates via its front-panel USB (MSC/MTP) & rear-panel USB (Windows/Mac) ports.

Compatible Formats Sampling Frequencies Bit rate Extension
WMA (Windows Media Audio) 32/44.1/48 kHz 48-192 kbps .wma
MP3 (MPEG-1 Audio Layer-3) 32/44.1/48 kHz 32-320 kbps .mp3
WAV 32/44.1/48 kHz 16-bit .wav
MPEG-4 AAC 32/44.1/48 kHz 16-320 kbps .aac/.m4a/.mp4
FLAC (Free Lossless Audio Codec) 32/44.1/48/96 kHz 16/20/24-bit .flac
Note: Copyright-protected files cannot be played. USB memory devices will not work via a USB hub. It is not possible to connect and use a computer via the unit's front-panel USB port.
System Requirements: Your computer will need to meet the following system requirements when connected to the NA7004's rear-panel USB (type-B) port.

Computer System Requirements Windows Mac
OS XP (SP2 or more), Vista, or 7 OSX 10.6.3
Software Windows Media Player iTunes
USB USB 2.0 USB 2.0