





RS520
The RS520 is more than just a source device with a built-in amplifier. It is a true all-in-one product with each stage expertly specified to deliver a performance that rivals multi-box systems. Even when matched with larger or more “difficult” speakers, it delivers a more delicate and elegant sound quality that is controlled and uniform across the frequency range.
Specifications
Base OS: 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
Max Power: 250W (THD 1%)
Input Sensitivity: 2V
Damping Factor: > 190V rms (@ 1kHz)
Input Impedance: 100kohm
Frequency Response: 10Hz – 90kHz (Speaker Outputs)
Channel Balance: 0.021dB
S/N Ratio: 105dB (@ 250W Speaker Output)
Network Connectivity: Ethernet 10/100/1000 BASE-T
Wi-Fi (802.11 ac Dualband – via dongle)
Bluetooth: Bluetooth supported (v 4.2)
Streaming Service: Bluetooth
Airplay
DLNA
Roon Ready
Spotify Connect
Music Services: Qobuz
TIDAL
ROSE Tube, ROSE Podcast, Internet Radio
Audio Inputs: Line Input x 1
Optical In x 1
COAX x 1
USB Audio In x 1
HDMI eARC x 1
Audio Outputs: Analogue Out (Unbalanced RCA) x 1
Optical Out x 1
COAX x 1
Video Output: HDMI 2.0 x 1 (up to 3840 x 2160 / 60Hz)
Media Connection: USB 3.0 x 2 (File system-NTFS/exFAT/FAT32, support up to 10TB)
SATA SSD x 1 (File System-NTFS/exFAT/FAT32, support up to 4TB)
Network Support Protocol: SMBv1 / FTP / WebDAV
Supported Audio Codecs: MQA, WAV, FLAC, AIFF, WMA, MP3, OGG, APE, DFF, DSF, AAC, CDA, AMR, APE, EC3, E-EC3, MID, MPL, MP2, MPC, MPGA, M4A, ALAC
PCM: 8kHz – 768kHz (8 / 16 / 24 / 32bit sample rate)
Native DSD: DSD64 (2.8MHz) – DSD512 (22.4MHz)
Supported Video Codecs: 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: 12.6-inch TFT LCD & Capacitive Touch Screen (eDP)
Size: 346 x 328 x 127 mm
Weight: 8.1kg
Accessories: Power Cord x 1, Bluetooth Remote Controller x 1, Wi-Fi / Bluetooth Dongle x 1, Manual x 1, SSD Screw x 4
Amplifier Stage Data
Output Power: 250W + 250W@ 8Ω , 4Ω
Sensitivity (Line in) 2Vrms
Sensitivity (Pre Out): 2Vrms
Power Bandwith (-3Db): 10Hz~85Khz, 8Ω , 200W
THD+N (Pre Out) 0.00033%, 1kHz, 600Ω, 2Vrms
THD+N (Speaker) 0.007%, 1kHz, 8Ω,150W
Damping Factor (1kHz): 150
Input Impedance: 100KΩ
Output Impedance: 50mΩ
Frequency Response (+1/-3dB): 10Hz ~ 83kHz
Signal-to-Noise Ratio (Pre Out): 124dB, 1kHz, 8Ω, 2Vrms
Signal-to-Noise Ratio (Speaker): 109dB, 1lHz, 600Ω, 2Vrms
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