The HiFi Rose RS151 music streamer is a newly developed model and is a direct replacement for the popular RS150B. The design team have achieved ground breaking improvements in every aspect. HiFi Rose’s cutting-edge technological developments during the HiFi Rose RD160 DAC project, combined with the latest flagship DAC chip, deliver revolutionary advancements in audio performance at this price point.

The significantly enhanced processing power of the RS151 IS based on a next generation 8-core CPU, which integrates seamlessly with the Full HD wide view multi-touch display featured in the HiFi Rose RS130. In our experience, the improved display delivers a smoother and more enjoyable playback experience. With upgrades in performance, functionality and convenience, the HiFi Rose RS151 music streamer sets a new standard for high-resolution audio and streaming.

The HiFi Rose 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 minimises grounding loops and suppresses noise interference, enhancing signal purity. Around the power supply, decoupling capacitors with low ESR (Equivalent Series Resistance) 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 ground breaking progress in signal accuracy and sound quality.

The analogue 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.

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.

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 colour gamut allow for detailed and vivid visual representation.

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 HiFi Rose 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 system, enabling centralized control without the need to manually operate each device individually.

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.

The HiFi Rose 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.

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.

Specifications

Input Sensitivity – 0dBF 1kHz(Digital), 2Vrms(Analogue)
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 Audio Formats – WAV, FLAC, ALAC, AIFF, WMA, OGG, APE, DFF, DSF, CDA, M4A, MP3, AAC, AMR, EC3, E-EC3, MID, MPL, MP2, MPC, MPGA,
Supported Video Formats – 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
Internal Storage – eMMC Flash 32GB (System Use Only)
External Storage – 3 × USB 3.0 Type-A, 1 × 2.5″ SSD(SATA 3.0, NTFS, exFAT)
CD Ripping – Support(By external USB CD Drive)
Digital Inputs – 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 eARC – PCM 24bit/192kHz
Analogue Inputs – Line In
Service Inputs – USB 3.0 Type-C
Digital Outputs – USB 3.0 Type-A – PCM 32bit/768kHz, DSD512(22.6MHz), Coaxial – PCM 24bit/384kHz, DSD128(5.6MHz) (only DoP), Optical – PCM 24bit/192kHz, DSD128(5.6MHz) (only DoP), AES/EBU – PCM 24bit/384kHz, DSD128(5.6MHz) (only DoP), I²S-HDMI – PCM 32bit/768kHz, DSD512(22.6MHz)
Analogue Outputs – Unbalanced, Balanced
Video Outputs – HDMI 2.0 (4K UHD / 60Hz)
Network Connectivity – Ethernet 10/100/1000 BASE-T(1Port), WiFi – USB Dongle, Bluetooth – 5.4 aptX (A2DP1.4, Sink, AVRCP v1.6.2)
Network Streaming Protocol – Bluetooth, AirPlay, DLNA/UPnP, Roon Ready, Spotify Connect
Network Storage – SMB
Power Input Voltage – 220V-240V~, 50/60Hz
Power Consumption – Standby – 0.3W, Idle – 5W, Playback – 55W
Operating ˚C – 0~40˚C
Storage ˚C – -10~50˚C
Display – 15.4″ TFT LCD & Capacitive Touch Screen (eDP)
Dimension – 430(W) × 319(D) × 125(H) mm
Weight – 11 kg
Material – Aluminium / Rust-proof Steel
Finish – Silver, Black
IR – 38kHz IR Receiver