HiFi Rose RS151 - Network Streamer

The HiFi Rose 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.

ROSE DPC (Digital Processing Core) Module

The ROSE DPC module is applied to the RS151's digital stage, minimising jitter and maximising signal quality by precisely synchronising 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

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-analogue 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.

Complete Seperation of Digital and Analogue

The digital and analogue 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.

8-Channel Independent Processor Design

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.

Enhanced Processing Power with 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.

Technical Specifications

Benchmark

• Input Sensitivity: 0dBF 1kHz (Digital), 2Vrms (Analogue)
• Output Impedance: 2.84 Ohms
• 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 Repsonse: 20Hz - 75kHz (+/- 0.5dB)

Sampling Rate

• PCM: 44.1kHz - 768kHz (8/16/24/32 bit 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

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 / 192kHz
• HDMI eARC: PCM 24bit / 192kHz

Inputs / Misc

• Analogue: 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 / 184kHz, DSD64 (5.6MHz) (only DoP)
• I2S HDMI: PCM 32bit / 768kHz, DSD512 (22.6MHz)

Outputs / Misc

• Analogue: Unbalanced, Balanced
• Video: HDMI 2.0 (4K UHD / 60Hz)
• Trigger: DC 12V

Network

• Connectivity: Ethernet: 10/100/1000 BASE-T (1Port) - WiFi: 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)

Physical

• Display: 15.4" TFT LCD & Capacitive Touch Screen (FHD, eDP)
• Dimensions WxDxH: 430 x 319 x 125mm
• Weight: 11kg
• Material: Aluminium / Rust-Proof Steel
• Finish: Silver, Black
• IR: 38kHz IR Receiver

Further Information

HiFi Rose RS151 - User Manual (PDF)