HiFi ROSE RS451 | Network streamer and headphone amplifier | 2 YEAR WARRANTY

73573
CHF1,999.00 Tax included
Supplier stock – typically 4 to 7 days
The HiFi ROSE RS451 is a network streamer with a built-in headphone amplifier, two ES9027PRO converters and an 8.8-inch touchscreen. It works as a preamp for a hi-fi system and as a USB DAC up to DSD512.
Color : Black
Quantity
Supplier delivery time usually between 4 and 7 days

Black streamer on a shelf, next to a silver amplifier

Compact 9.2 cm format

The RS451 measures 43 x 33.7 x 9.2 cm and weighs 7 kg, so it fits on a desk, a shelf or in a living-room system. Its 8.8-inch IPS touchscreen with 1920 x 480 pixels runs ROSE OS, with TIDAL, Qobuz, Apple Music, Spotify Connect and Roon. The machined volume knob and the infrared remote set the level of both the preamp output and the headphones.

Front panel with three headphone sockets and a touchscreen

Dedicated headphone amplifier

The front panel holds three headphone outputs: balanced 4-pin XLR and 4.4 mm, unbalanced 6.35 mm. A dedicated ES9027PRO converter feeds them, followed by four parallel amplifiers that deliver 2700 mW into 16 Ω balanced and drive headphones beyond 600 Ω. The signal-to-noise ratio reaches 128 dB on XLR and 4.4 mm.

Top view of the circuits, transformer and capacitors

Two ES9027PRO converters

The second ES9027PRO feeds the XLR and RCA preamp output, with a 129 dB signal-to-noise ratio on XLR. Each converter has its own power supply and ground, downstream of a toroidal linear power supply. On the input side, USB-B accepts 768 kHz 32-bit PCM and DSD512, and the HDMI eARC socket takes the television sound.

Black = Black; Grey = Silver
73573

Data sheet

Product Type
Network Audio Streamer
Features
8.8-inch IPS LCD capacitive touchscreen (MIPI)
38 kHz IR receiver
CD Ripping
Hi-Res Audio certified (JAS)
Output impedance 1.5 Ω (XLR), 1.3 Ω (RCA)
PCM to DSD upsampling up to DSD512
Plays with Audirvāna
SMB, FTP and WebDAV network sharing
USB ports
3 x USB 3.0 Type-A
Bluetooth
5.4 aptX (A2DP 1.4, Sink, AVRCP v1.6.2)
Brand
HiFi ROSE
Integrated DAC
ESS ES9027PRO
Headphone output
6.35 mm, 4.4 mm, and balanced XLR-4
WiFi
Wi-Fi via USB dongle
Audio outputs
Balanced XLR + RCA
Coaxial output: PCM 32-bit/384 kHz, DSD128 (5.6 MHz) DoP only
Optical output: PCM 32-bit/192 kHz, DSD64 (2.8 MHz) DoP only
USB 3.0 Type-A: PCM 32-bit/768 kHz, DSD512 (22.6 MHz)
Digital inputs
Coaxial input: PCM 32-bit/384 kHz, DSD128 (5.6 MHz) DoP only
HDMI eARC: PCM 24-bit/192 kHz
Optical input: PCM 32-bit/192 kHz, DSD64 (2.8 MHz) DoP only
USB 2.0 Type-B: PCM 32-bit/768 kHz, DSD512 (22.6 MHz)
HDMI ARC
Yes
Analog inputs
Line input (RCA)
Output power
4.4 mm headphones: 2700 mW (16 Ω), 2600 mW (32 Ω), 650 mW (300 Ω), 350 mW (600 Ω)
6.35 mm headphones: 1300 mW (16 Ω), 1000 mW (32 Ω), 175 mW (300 Ω), 90 mW (600 Ω)
XLR headphones: 2700 mW (16 Ω), 2600 mW (32 Ω), 650 mW (300 Ω), 350 mW (600 Ω)
Color
Black, Silver
Streaming services
Roon Ready
Resolution
1920 x 480
Connectivity
Bluetooth, DLNA/UPnP, Roon Ready, Spotify Connect
Storage expansion
1 x 2.5-inch SSD (SATA 3.0, NTFS, exFAT)
Audio format
WAV, FLAC, ALAC, AIFF, WMA, OGG, APE, DFF, DSF, CDA, M4A, MP3, AAC, AMR, EC3, E-EC3, MID, MPL, MP2, MPC, MPGA
Technology
3 A thermal circuit breaker
Aluminium / rust-proof steel / ABS
High-precision femto clock
Toroidal linear power supply
Hi-Res Audio
DSD64 (2.8 MHz), DSD128 (5.6 MHz), DSD256 (11.2 MHz), DSD512 (22.6 MHz)
PCM 8 kHz to 768 kHz (8/16/24/32-bit)
Operating system (OS)
Android 12
Network connectivity
Gigabit Ethernet RJ-45
Video codecs
ASF, AVI, MKV, MP4, WMV; MPEG-1/2/4, H.263, H.264/AVC, H.265/HEVC, VC-1, VP8/9, MVC; up to 4Kx2K at 60 fps; encoding up to 1080p at 30 fps
Processor
ARM Mali-G610 MC4 GPU (OpenGL, Vulkan, OpenCL)
Quad-core Cortex-A76 and quad-core Cortex-A55
Connections
DC trigger input 3.3 V - 12 V
Trigger 12 V
USB 3.0 Type-C service port
RAM memory
8 GB LPDDR4X
Video outputs
HDMI 2.0 (4K UHD / 60 Hz)
Signal-to-noise ratio
129 dB (XLR), 126 dB (RCA)
Headphones: 128 dB (XLR), 128 dB (4.4 mm), 118 dB (6.35 mm)
Power consumption
Playback 20 W, idle 5 W, standby 0.5 W
Frequency response
10 Hz - 80 kHz (±1 dB)
Niveau de sortie
10 Vrms (XLR), 5 Vrms (RCA)
Séparation des canaux
140 dB (20 Hz - 20 kHz)
Distortion (THD)
0.00025% (XLR, 1 kHz, 10 Vrms), 0.00025% (RCA, 1 kHz, 5 Vrms)
Headphones: 0.00087% (16 Ω), 0.00076% (32 Ω), 0.00037% (300 Ω), 0.00038% (600 Ω)
Width
43.0 cm
Depth
33.7 cm
Height
9.2 cm
Unit weight
7.0 kg

Specific References

EAN13
8809576420262
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