World Wide Stereo via Ebay has 320GB Astell & Kern AK70 Mark II Portable Music Player (Dual DAC player, WiFi and Bluetooth enabled) for $399.95 + free shipping.
AK70 MK? include:
- Dual Cirrus Logic CS4398 DAC Chipsets (CS42398 x 2) for audiophile performance
- 64GB internal flash storage with single microSD card slot for up to 256GB of additional storage memory = 320 GB storage. *May be compatible with SanDisk 400GB microSD cards to expand the system’s total storage capacity to 464GB.
- Supports high-resolution audio up to 32-bit/384kHz PCM (downconverted to 24bit/192kHz PCM) and up to double-rate, 5.6MHz DSD (converted to PCM)
- Lossless and lossy codec supported, including FLAC, ALAC, WAV, APE, AIFF, DFF, DSF, OGG, AAC, MP3
- 4.0Vrms of balanced power output to drive any headphone with ease
- 3.5mm unbalanced and 2.5mm, 4-pole balanced headphone outputs
- DLNA 1.0 Compatible
- Wi-Fi enabled
- Supports aptX HD to stream hi-res audio up to 24-bit/48kHz wirelessly via Bluetooth
- Supports AK Connect app, available for iOS and Android devices
- USB DAC function – can be connected to a Mac/PC to bypass internal sound card and output hi-res audio
- CD-Ripper compatible, allowing the user to rip music directly to the player without the need for a computer
- TIDAL streaming music service