


RS250A
The RS250A is a high-performance network streamer, DAC, and pre-amplifier with an output stage optimised for true audiophile performance. Thanks to the coveted Rose OS operating system, intuitive touch-screen control and its extensive list of features, the RS250A opens up a wide world of high-quality digital music.
Specifications
Base Operating System Customised Android 7.1
CPU Hexa Core CPU, Dual-core Cortex-A72 up to 1.8GHz, Quad-core Cortex-A53 up to 1.4GHz
GPU Mali-T864 GPU, OpenGL ES 1.1/2.0/3.0/3.1, OenVG1.1, OpenCL, DX11
Memory LPDDR3 4GB
Oscillator High-Precision Femto Clock
DAC Chip ES9028 PRO 8-Channel Audio DAC
Output Level Max 2.2Vrms, Unbalanced
Signal to Noise ratio 126dB (A-weighted)
THD 0.00012% (1kHz, 2.25Vrms, Unbalanced output)
THD + N 0.0002% (1kHz, 2.25Vrms, Unbalanced output)
Dynamic Range 137dB (CCITT filter)
Stereo Cross Talk > 137dB (20Hz – 20kHz)
Frequency Response 17Hz – 80kHz (± 1dB)
Output Impedance 150Ω
Network Connectivity Ethernet 10/100/1000 BASE-T, Wi-Fi (802.11 b/g/n/a/ac) 2.4Ghz/5Ghz Dual Band
Bluetooth Bluetooth supported (A2DP Sink, AVRCP v1.3)
Streaming Service Bluetooth A2DP Sink, Airplay, DLNA, Roon Ready, Spotify Connect
Audio Inputs Line Input x 1, Optical In x 1, COAX x 1, USB 2.0 Audio In x 1
Audio Outputs Analogue Out (Unbalanced RCA) x 1, Optical Out x 1, COAX x 1, USB 3.0 Audio Out x 1, Headphone Out x 1
Video Outputs HDMI 2.0 x 1 (up to 3840 x 2160 / 60Hz)
Media Connections USB 3.0 x 2 (File system-NTFS/exFAT/FAT32, up to 10TB), SATA 3.0, SSD x 1 (File system-NTFS/exFAT/FAT32, up to 4TB)
Network Support Protocol SMB / FTP / WebDAV
Supported Audio Codecs WAV, FLAC, ALAC, AIFF, WMA, MP3, OGG, APE, DFF, DSF, AAC, CDA, AMR, APE, EC3, E-EC3, MID, MPL, MP2, MPC, MPGA, M4A, PCM: 8kHz – 768kHz (8 / 16 / 24 / 32bit sample rate)
Native DSD DSD64 (2.8MHz) – DSD512 (22.4MHz)
MQA Full Decoding
Supported Video Codec ASF, AVI, MKV, MP4, WMV, MPEG-1, MPEG-2, MPEG-4, H.263, H.264, H.265, VC-1, VP9, VP8, MVC, H.264/AVC, Base/Main/High/High10 profile@level5.1 up to 4Kx2K@30fps, H.265/HEVC, Main/Main10 profile@ level 5.1 High-tier up to 4Kx2K@60fps
Display 8.8-inch TFT LCD & Capacitive Touch Screen (MIPI-DSI)
Size (W x D x H): 278 x 231 x 83 mm
Weight: 3.2kg
Power Consumption: 50W
Accessories Power Cord x 1, Bluetooth Remote Controller x 1, Manual x 1, SSD Screw x 4
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