HiFi Rose RS151 Network Streamer

High Performance Network Streamer Gen2 RS151 The RS151 is a network streamer that achieves groundbreaking improvements in every aspect. ROSE's proprietary cutting-edge technologies developed during the RD160 project, combined with the latest flagship DAC chip and sophisticated design, deliver revolutionary advancements in audio performance. The significantly enhanced processing power, based on a next-generation 8-core CPU, integrates seamlessly with the Full HD wide-view multi-touch display introduced in the RS130, delivering a smoother and more enjoyable playback experience. With upgrades in performance, functionality, and convenience, the RS151 sets a new standard for high-resolution audio and streaming.       Innovative Signal Processing ROSE DPC(Digital Processing Core)™™™ Module The ROSE DPC™ module is applied to the RS151's digital stage, minimizing jitter and maximizing signal quality by precisely synchronizing input signals with a highly precise Femto clock and aligning them as I2S signals. All processing blocks within this module are designed to maintain the highest level of signal accuracy. Additionally, the circuit for the user interface and GUI configuration is completely isolated from the digital audio signal path, thoroughly eliminating signal distortion and interference. Through this design, the RS151 guarantees accurate signal processing, natural and clean sound, and seamless compatibility with various digital formats.   Cutting-Edge DAC Design     4th-Hyperstream® Technology Complete Separation of Digital and Analog 8-Channel Independent Processing Design Featuring 4th-generation Hyperstream® technology, the ES9039PRO combines with a highly precise Femto clock to drastically suppress jitter. In addition, it further enhances linearity during the digital-to-analog conversion process. This allows to deliver distortion-free, clean sound with improved timing accuracy and precise reproduction of detailed acoustic nuances in high-resolution audio. The digital and analog signal paths are physically and completely separated, ensuring that each circuit operates independently. This design prevents any influence from noise and jitter generated in the digital circuit, offering a higher level of clarity and accuracy without interference or distortion between the paths. The ES9039PRO features an independent processing design, ensuring that all 8 channels operate independently within their own dedicated circuits. This enables the delivery of exceptional channel separation, precise stereo imaging, an expanded soundstage, and outstanding spatiality without any channel interference.   ROSE NRA (Noise Reduction Analog)™™™ Filter The analog stage features the ROSE NRA™ filter, designed to eliminate noise and enable flat frequency characteristics even at extremely low frequency ranges. With this innovation, the RS151 boasts a fixed frequency response across the entire range without roll-off, faithfully and clearly reproducing the original sound information embedded in high-resolution audio sources.     Advanced Audio Performance Sound Quality Progress via Sophisticated Design The RS151 incorporates a variety of technological innovations and premium components to enhance sound quality. In the DAC stage, I/V conversion circuit, and OP-AMP stage, high-precision MELF resistors and audio-grade WIMA film capacitors are employed to improve linearity during signal processing and minimize distortion. Additionally, the bias voltage of the OP-AMP is precisely controlled, resulting in a more refined and natural sound. A single-point ground design minimizes grounding loops and suppresses noise interference, enhancing signal purity. Around the power supply, decoupling capacitors with low ESR and high ripple current capacity are placed to effectively filter high-frequency noise and strengthen power supply stability. Thanks to these sophisticated design, the RS151 achieves remarkable measurement values with a SNR of 131.4dB and THD+N of just 0.0002%. These figures represent groundbreaking progress in signal accuracy and sound quality.       Enhanced Processing with Next-Generation 8-Core CPU     Equipped with the next-generation 8-core CPU, the RK3588, RS151 boasts four times the data processing performance and eight times the graphics performance compared to its predecessor. The DRAM capacity has been doubled from 4GB to 8GB, while the eMMC storage has been expanded from 8GB to 32GB, providing processing speeds more than twice as fast. This enables seamless playback of large audio files and 4K high-resolution videos with HDR, while the media library capacity has tripled, supporting over a million tracks. Additionally, improved I/O bus performance offers read/write speeds approximately twice as fast as before, allowing for quicker file transfers and faster response times during music playback for a smoother listening experience. The newly integrated Android 12 OS further enhances user convenience and security, providing an intuitive and stable user experience.       Full-Size Multi-Touch Display The RS151 features HiFi ROSE's signature full-size wide-viewing-angle display, enhancing the appeal of "Impression of sound enjoyed by eyes and ears"" to the fullest. Upgraded from 14.9 inches to 15.4 inches and from HD to Full HD, the display offers a generous screen size and superior resolution, reproducing album art and videos in stunning high quality. The intuitive multi-touch screen panel provides exceptional user convenience, while its high resolution and wide color gamut allow for detailed and vivid visual representation. This advanced display not only enriches the experience of listening to music but also adds enjoyment and ease to various tasks utilizing the display.     Upgraded Connectivity with Advanced Features eARC Trigger IN/OUT The previously supported ARC via HDMI has been upgraded to eARC, allowing uncompressed transmission of high-resolution audio signals at 24bit/192kHz. This enhancement enables the RS151 to deliver even more realistic and high-quality Hi-Fi sound through HDMI, bringing you closer to a true Hi-Fi experience. Through the Trigger IN/OUT ports and a monaural mini jack cable, the RS151 can receive DC signals ranging from 3.3V to 12V to automatically power on the device or output a 12V signal to control the power of external audio equipment. This allows for efficient power management of your audio system, enabling centralized control without the need to manually operate each device individually. Bluetooth Module & Antenna Hi-Res COAX, AES/EBU The RS151 integrates a SIG-certified Bluetooth module and a proprietary antenna, supporting the latest Bluetooth® v5.4 specification. Built on the Qualcomm QCC3083 chipset, this module features a high-performance 24-bit audio interface and aptX codec, delivering high bitrates and exceptional sound quality. It also supports various profiles, including A2DP, AVRCP, and IOPT, ensuring a stable and premium wireless audio experience. With the ES9039PRO's significantly enhanced digital signal processing capabilities, the RS151 now officially supports PCM 24bit/384kHz and DSD128 formats via coaxial and AES/EBU inputs.       Other Features Το DSD 512 Upsampling The RS151 offers the ability to convert PCM audio to DSD and upscale it to a maximum of DSD512 using the ROSE DPC™ module. This allows users to enjoy various PCM audio sources with the rich, unique sound characteristics of DSD. The high-resolution upsampling preserves the fine details of the original source while enriching the sound with depth and clarity tailored to user preferences.             Highly Precise Femto Clock The RS151 employs a highly precise Femto clock, renowned for its exceptional synchronization accuracy and stability. This clock ensures sampling accuracy and resolves issues such as inter-channel phase errors, offering precise soundstage representation and crystal-clear stereo imaging.           Circuit Breaker The RS151 includes a circuit breaker as a safety feature to protect against overloads and short circuits. Unlike standard fuses, the circuit breaker minimizes current loss and signal distortion with its wide metal contacts, enabling accurate reproduction of dynamic bass and clear treble in high-resolution audio, ensuring superior sound quality.                 Linear Power Supply and Ideal Circuit Design Premium Internal Wiring The in-house developed reference linear power supply is designed with high-capacity capacitors and ULTRA LOW NOISE power chipsets to minimize noise. By physically separating the power supply and digital stage, it prevents electrical noise interference, resulting in distortion-free playback and significantly improved sound quality. High-purity oxygen-free copper (OFC) cables, known for their excellent conductivity, have been used in the power and I/O stages, both critical to sound quality. These cables effectively minimize electromagnetic interference and noise in the power lines, ensuring cleaner and more stable power delivery, while enabling precise signal transmission in the I/O stages and contributing to a richer and more refined audio experience.   Aluminum Chassis Minimizing Micro-Vibrations The RS151's chassis is crafted from aluminum plates up to 30mm thick, CNC-machined for effective heat dissipation, ensuring stable performance even during extended use. Its minimal assembly joints enhance structural rigidity, effectively suppressing vibrations that could adversely affect sound quality. This meticulous design not only reinforces the RS151's consistent audio performance but also elevates its aesthetic sophistication.     IR Remote Control Replacing the previous Bluetooth-based control, the RS151 now features an IR remote receiver. With less restrictions on range and angle and no need for pairing, the IR remote offers stable, intuitive control and enhanced user convenience.     Connect Anything You can enjoy seamless streaming through the network. It supports Airplay and DLNA functions. Also, you can connect the device to a smartphone, computer, or tablet PC through WiFi/Giga Ethernet / Bluetooth communications.     Innovative ROSE OS system HiFi ROSE's own OS system provides an innovative listening environment. In addition to playing and streaming ultra-high-quality music, it offers a variety of services including 4K high-definition video playback, music-oriented YouTube listening, Pod casts, various radio broadcasts around the world, CD playback and ripping.     ROSE Audio Engine HiFi ROSE can deliver pure audio data to DAC without loss by using RoseAudioServer, developed by ROSE, and realizes advanced high fidelity audio service by using various signal processing technologies.   Audio Stream reader Audio Decoder Audio Process Audio stream reader uses caching technology developed by HiFi ROSE to process digital input signals using system interrupt, network jitter, and coarse clock without distortion. Audio decoder can process various types of audio sources and codecs to extract DSD and PCM data, and in the case of a sound source using lossy codec, it decodes to 32bit float PCM to minimize distortion. Audio process supports bit-perfect transmission, and packages and delivers audio data in a transmission format optimized for the connected DAC. It can handle full MQA decoding and native DSD, and provides an advanced hi-fi audio environment using various post-process modules developed by HiFi ROSE.     ROSE Connect Application It includes a Dedicated Remote Control Application that allows users to conveniently control and smartly manage ROSE devices. The remote control application works on various platforms including iPhone, iPad, Android phone, and PC.     SPECIFICATIONS Benchmark   Input Sensetivity OdBF 1kHz(Digital), 2Vrms(Analog) Output Impedance 2.84 Ω Output Level 9.0Vrms(XLR), 4.5Vrms (RCA), THD + N 0.0002% (XLR), 0.0003% (RCA) (1kHz, 0dBF) Signal to Noise Ratio 131dB(XLR), 124dB(RCA) Dynamic Range Max 150dB (CCITT filter) Stereo Crosstalk Max-143dB (20Hz-20kHz) Frequency Response 20Hz-75kHz (+/-0.5dB) Sampling Rate PCM 44.1kHz-768kHz(8/16/24/32bit per Sample) DSD DSD64(2.8MHz) / DSD128(5.6MHz) / DSD256(11.2MHz) / DSD512(22.6MHz) Supported File Formats Audio WAV, FLAC, ALAC, AIFF, WMA, OGG, APE, DFF, DSF, CDA, M4A MP3, AAC, AMR, EC3, E-EC3, MID, MPL, MP2, MPC, MPGA Video ASF, AVI, MKV, MP4, WMV MPEG-1/2/4, H.263, H.264/AVC, H.265/HEVC, VC-1, VP8/9, MVC H.264/AVC (Base/Main/High/High10, Level 5.1): Up to 4Kx2K@30fps H.265/HEVC (Main/Main10, Level 5.1 High-tier): Up to 4Kx2K@60fps VP9/H.264/H.265: Up to 4Kx2K@60fps H.264/MVC/VP8 Encoding: Up to 1080p@30fps Technical PSU Toroidal Linear Power Supply CPU Octa core RK3588 RAM LPDDR4X 8GB GPU ARM Mali-G610 MC4 (OpenGL, Vulkan, OpenCL) DAC ES9039 PRO (ESS) Oscillator Highly Precise Femto Clock Inputs Digital USB 2.0 Type-B: PCM 32bit/768kHz, DSD512(22.6MHz) Coaxial: PCM 24bit/384kHz, DSD128(5.6MHz) (only DoP) Optical: PCM 24bit/192kHz, DSD64(2.8MHz) (only DoP) AES/EBU: PCM 24bit/384kHz, DSD128(5.6MHz) (only DoP) HDMI ARC: PCM 24bit/192kHz Analog Line In Service USB 3.0 Type-C Trigger DC 3.3V-12V Outputs Digital USB 3.0 Type-A: PCM 32bit/768kHz, DSD512(22.6MHz) Coaxial: PCM 24bit/384kHz, DSD128(5.6MHz) (only DoP) Optical: PCM 24bit/192kHz, DSD64(2.8MHz) (only DoP) AES/EBU: PCM 24bit/384kHz, DSD128(5.6MHz) (only DoP) I2S-HDMI: PCM 32bit/768kHz, DSD512(22.6MHz) Analog Unbalanced, Balanced Video HDMI 2.0 (4K UHD / 60Hz) Trigger DC 12V Network Connectivity Ethernet: 10/100/1000 BASE-T (1Port) Wiffi: USB Dongle Bluetooth: 5.4 aptX (A2DP1.4, Sink, AVRCP v1.6.2) Streaming Protocol Bluetooth, Airplay, DLNA/UPnP, Roon Ready, Spotify Connect Storage SMB Storage Internal eMMC Flash 32GB (System Use Only) External 3 x USB 3.0 Type-A 1 x 2.5" SSD (SATA 3.0, NTFS, exFAT) Feature CD Ripping Support (By external USB CD Drive) Power Input Voltage AC 110-120V, 220-240V, 50/60Hz Power Consumption Standby: 0.3W Idle: 5W Playback: 55W Protection 6A Thermal Circuit Breaker Environmental Operating °C 0-40°C Storage °C -10~50°C Physical Display 15.4" TFT LCD & Capacitive Touch Screen (FHD, eDP) Dimension 430(W) X 319(D) X 125(H) mm Weight 11kg Material Aluminum / Rust-proof Steel Finish Silver, Black IR 38kHz IR Receiver