HiFiRose
RS451 Network Network Streamer and DAC
RS451 Network Network Streamer and DAC
RS451 At A Glance
- Vibrant 8.8" IPS LCD with Capacitive Touchscreen (MIPI) for responsive, wide-angle viewing.
- ROSE DPC™ Digital Processing Core and ROSE NRA™ Noise Reduction Analog architecture deliver flat, transparent sound with vanishingly low distortion (0.00025% THD+N).
- Built-in high-power headphone amplifier with balanced XLR and 4.4mm outputs for true reference-grade listening.
- Independent power supply per channel and toroidal linear PSU ensure ultra-low noise and superior stereo separation.
- High-precision Femto clock for exceptional timing accuracy and jitter control.
- Native DSD512 / PCM 32-bit 768kHz decoding with ESS ES9027PRO DAC.
Supports AirPlay, DLNA, Roon Ready, Spotify Connect, TIDAL, Qobuz, Apple Music, RoseTube, and Internet Radio. - SSD caching playback for smoother streaming and faster response.
- External master clock input and Fiber Optic Ethernet & USB connectivity for enhanced digital isolation.
- Precision-milled aluminum chassis designed to minimize vibration and thermal noise.
- Seamless app control via the intuitive ROSE Connect app (Android, iOS, PC).
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Product Description
Uncompromised Fidelity in a Compact Form
The HiFi Rose RS451 distills the essence of reference-grade performance into a more compact, desktop-friendly design. Built around ROSE’s advanced DPC™ Digital Processing Core and NRA™ Noise Reduction Analog architecture, it delivers astonishingly clean, transparent sound with vanishingly low distortion. Every circuit—from the DAC stage to the headphone amplifier—is meticulously tuned for lifelike musicality and precision.
Designed for Sonic and Visual Harmony
Machined from premium aluminum and finished with refined minimalism, the RS451 complements any listening space with understated elegance. The 8.8-inch IPS touch display offers an intuitive window into your music, combining responsive control with vivid clarity. Inside and out, every detail reflects a pursuit of perfect balance—form, function, and fidelity in harmony.
Reference DAC Performance
At its core, the ESS ES9027PRO DAC ensures wide dynamic range, exceptional signal-to-noise ratio, and remarkable linearity across the frequency spectrum. With native DSD512 and PCM 32-bit/768 kHz playback, the RS451 captures every nuance of the original recording—faithful, precise, and true to the artist’s intent.
Pure Power
The RS451 employs a toroidal linear power supply and independent power delivery per channel, producing a stable, noise-free foundation for your music. The result is greater stereo separation, effortless dynamics, and an open, natural soundstage that invites deeper listening.
Headphone Excellence, Reimagined
Equipped with a powerful integrated headphone amplifier, the RS451 accommodates both balanced (XLR, 4.4 mm) and unbalanced (6.35 mm) connections. It offers the drive and control required for demanding headphones, revealing layers of texture and micro-detail that lesser sources leave behind.
Seamless Streaming, Intuitive Control
The RS451 is Roon Ready and supports AirPlay, DLNA, Spotify Connect, TIDAL, Qobuz, Apple Music, RoseTube, and Internet Radio. Whether operated via the responsive touchscreen or the ROSE Connect app for Android, iOS, and PC, every function feels fluid and effortless—technology refined into pure enjoyment.
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Specifications
| Operating System: | HiFi ROSE OS (based on customized Android) |
| Dimensions: | 430(W) × 337(D) × 92(H) mm |
| Weight: | 7kg |
| Display: | 8.8" IPS LCD & Capacitive Touch Screen (MIPI) |
| CPU: | Quad-core Cortex-A76 + Quad-core Cortex-A55 |
| GPU: | ARM Mali-G610 MC4 (OpenGL, Vulkan, OpenCL) |
| Memory: | LPDDR4X 8GB |
| Cache Storage: | 1 × 2.5" SSD (SATA 3.0, NTFS/exFAT) |
| Network Connection | |
| Network: | Ethernet 10/100/1000 BASE-T |
| WiFi: | USB Dongle (2.4/5 GHz Dual-Band Supported) |
| Bluetooth: | v5.4 aptX (A2DP 1.4, Sink, AVRCP v1.6.2) |
| Streaming Playback | |
| Supported Streaming Platforms: | AirPlay, DLNA/UPnP, Roon Ready, Spotify Connect, Bluetooth |
| Supported Streaming Services: | TIDAL, Qobuz, Apple Music, RoseTube, Rose Radio, Internet Radio |
| Input/Outputs | |
| Audio Input: | USB 2.0 Type-B, Optical × 1, Coaxial × 1, HDMI eARC, Line In (RCA) |
| Audio Output: | USB 3.0 Type-A, Optical × 1, Coaxial × 1, Balanced (XLR), Unbalanced (RCA), Headphone Out (XLR/4.4 mm/6.35 mm) |
| Video Output: | HDMI 2.0 × 1 (4K UHD / 60 Hz) |
| Media Connections | |
| File System: | NTFS / exFAT |
| Network Protocol: | SMB / FTP / WebDav |
| Storage Interface: | 3 × USB 3.0 Type-A Ports + 1 × 2.5" SSD Bay (SATA 3.0) |
| Supported Codec | |
| Audio: | WAV, FLAC, ALAC, AIFF, WMA, OGG, APE, DFF, DSF, CDA, M4A, MP3, AAC, AMR, EC3, E-EC3, MID, MPL, MP2, MPC, MPGA / PCM 8 kHz – 768 kHz (8/16/24/32 bit) / Native DSD 64 – 512 (2.8 – 22.6 MHz) |
| Video: | ASF, AVI, MKV, MP4, WMV, MPEG-1/2/4, H.263, H.264/AVC, H.265/HEVC, VC-1, VP8/9 (up to 4K × 2K @ 60 fps) |
| Power | |
| Input Voltage: | AC 110–240 V 50/60 Hz |
| Circuit Breaker: | 3 A Thermal Circuit Breaker |
| Software Update | |
| SW Update: | Via Internet (OTA), USB, or ROSE Store |
| Remote Control | |
| App: | ROSE Connect (Android, iOS, PC) |
| Physical: | IR Remote Control, Bluetooth Remote Control |
| Accessories | |
| Included Accessories: | Power Cord, Remote Controller (with AAA Batteries), User Manual, SSD Mounting Screws, USB WiFi/BT Dongle + Holder |