RS150B DESCRIPTION
RS150B is High-Performance Network Streamer that provides various multimedia services with high-quality sound and ultra-high-resolution video.

Create your own high-quality sound station with RS150.

Pure Sound
State-of-the-art DAC Setting Integrated with Asahi Kasei’s flagship DAC chip AK4499EQ, the RS150B offers low noise, low distortion, ultra-high-resolution sound and analog rich density with proprietary processing supporting PCM 32bit / 768KHz and Native DSD512 (22.5792Mhz).

Analog Acoustic Sensitivities
Delivers the musical inspiration from high-quality sound by the tuning of Acoustic engineers with thirty years of experience. Clearly expresses the full range, from grand, and rich bass to delicate, and elegant highs.

Linear Power System and Ideal Circuit system
Linear power supply minimizes noise inflow significantly. An ideal circuit system eliminates electrical noise and creates dramatically improved sound quality without distortion.

Highly Precise Femto Clock
The highly precise Femto clock delivers superb stereoscopic,
and distortion-free sound with quiet and clear background imaging.

Case milled from Solid block of High Purity Aluminum
The high-purity aluminum is integrated into one piece to maximize thermal efficiency. By minimizing parts in the assembly area, vibrations that can affect sound qualities are greatly reduced, creating a profound and ideal sense of space.

MQA Certified
RS150B supports MQA full decoder technology. MQA (Master Quality Authenticated) is an award-winning British technology that delivers the sound of the original master recording. The master MQA file is fully authenticated and is small enough to stream or download.

Ultra HD 4K Video Support
Watch Local or RoseTube video files in Ultra HD 4K quality on a large display with an HDMI connection. Feel the magnificent and vivid touch of the Opera House at home now.

Advanced Control
14.9-Inch-Wide Touch Screen Intuitive, and convenient interface through high-resolution IPS Multi-Touch panel. The front display can play album art and music videos at a wide viewing angle.

Bluetooth Remote Controller
With a Bluetooth remote controller, control the device with ease.

Innovative ROSE OS
HiFi Rose OS system provides an innovative musical experience. Stream and play ultra-high-quality music, 4K high-definition video, ad-free YouTube, Podcasts, various radio stations from around the world, CD playback/Ripping, and more.

Connect Anything

Wired/Wireless Connection
Seamless streaming over the network is possible.
It supports Airplay and DLNA functions and can connect to smartphones,
computers, and tablet PCs via Wi-Fi / Giga Ethernet / Bluetooth communication.

Build a home media library
Designed to contain enough storage in consideration of listening to HiFi music sources, RS150 can recognize up to 4TB of SSD, 10TB of external HDD, and 400GB of MicroSD. Also, it supports connection with NAS. Experience high-quality music without worrying about drive capacity from now on.

High Performance Input / Output Terminal
Compatible with multiple devices via several kinds of terminals. Supporting a variety of input and output terminals, RS150 completes the ultimate connectivity.

RA280 DESCRIPTION
The HiFi Rose RA280 Integrated Amplifier exemplifies the seamless blend of advanced technology and elegant design, crafted to deliver an unparalleled audio experience. Building on the legacy of its predecessor, the RA180, this new model integrates the revolutionary Advanced Class D amplification technology to offer both high efficiency and superior sound quality.

Innovative Advanced Class D Technology
HiFi Rose redefines digital amplification with the RA280’s Advanced Class D technology, featuring next-generation GaN (gallium nitride) FETs. This breakthrough innovation surpasses traditional Class D amplifiers, delivering sound quality comparable to analog while maintaining superior efficiency and power. The RA280 achieves near-perfect linear output with minimal distortion, ensuring smooth, natural sound reproduction. Covering a wide frequency range from 20 Hz to 100 kHz, the RA280 faithfully renders every audio detail, creating a truly immersive and realistic listening experience.

Superior Mono Amplifier Design with Advanced Filtering
The RA280 stands out with its two completely separated mono amplifier modules, each delivering 250 W (4 Ω and 8 Ω) to the left and right channels, for a total of 500 W in stereo mode. HiFi Rose’s advanced two-stage analog filter technology ensures top-tier sound quality. The LC filter provides exceptional frequency response, with -1 dB attenuation up to 65 kHz and -3 dB up to 85 kHz, effectively reducing carrier noise from Class D amplifiers. This results in pristine, detailed sound, enhanced spatial resolution, and a natural analog feel.

Precision Phono Amplifier for Moving Magnet Cartridges
Elevate your vinyl listening experience with the RA280’s precision phono amplifier, designed for moving magnet cartridges. This high-performance amplifier, activated via a simple switch, amplifies delicate audio signals without distortion. HiFi Rose’s high-precision compensation circuitry delivers sound that is remarkably close to the original recording. This ensures rich, vivid detail and superior sound quality, providing an immersive and high-fidelity music playback experience that brings your records to life.

Cutting-Edge Power Supply for Unmatched Performance
HiFi Rose’s RA280 features a state-of-the-art power supply, utilizing silicon carbide FETs for superior efficiency and reduced heat compared to traditional silicon FETs. This innovative design ensures optimal power delivery and stability. The inclusion of a 2.5 power factor correction circuit and a high-capacity condenser maintains excellent performance even under rapid load changes, ensuring consistent and high-quality sound. The fourth-generation Silicon Carbide (SiC) FET technology enhances power output while minimizing heat, supporting deep bass and precise treble tones for powerful and accurate audio reproduction.

RS150B FEATURES
RS150 is High-Performance Network Streamer provides
various multimedia services with high-quality sound and ultra-high-resolution video.

Create your own high-quality sound station with RS150.

Pure Sound
State-of-the-art DAC Setting

Integrated with Asahi Kasei's flagship DAC chip AK4499EQ,
the RS150 offers low noise, low distortion, ultra-high-resolution
sound and analog rich density with proprietary processing
supporting PCM 32bit / 768KHz and Native DSD512 (22.5792Mhz).

Analog Acoustic Sensitivities
Delivers the musical inspiration from high-quality sound
by the tuning of Acoustic engineers with thirty years of experience.
Clearly expresses the full range, from grand, and rich bass to delicate, and elegant highs.

Linear Power System and Ideal Circuit system
Linear power supply minimizes noise inflow significantly.
Ideal circuit system eliminates electrical noise,
and creates dramatically improved sound quality without distortion.

Highly Precise Femto Clock
The highly precise Femto clock delivers superb stereoscopic,
and distortion-free sound with quiet and clear background imaging.

Case milled from Solid block of High Purity Aluminum
The high-purity aluminum integrated into one piece to maximize thermal efficiency.
By minimizing parts in the assembly area, vibrations that can affect sound qualities
are greatly reduced, creating a profound and ideal sense of space.

MQA Certified
RS150 supports MQA full decoder technology. MQA (Master Quality Authenticated) is an award-winning British technology that delivers the sound of the original master recording. The master MQA file is fully authenticated and is small enough to stream or download.

Ultra HD 4K Video Support
Watch Local or RoseTube video files in Ultra HD 4K quality on a large display with an HDMI connection. Feel the magnificent and vivid touch of the Opera House at home now.

Advanced Control
14.9-Inch-Wide Touch Screen
Intuitive, and convenient interface through high-resolution IPS Multi-Touch panel. The front display can play album art and music videos in a wide viewing angle.

Bluetooth Remote Controller
With a Bluetooth remote controller, control the device with ease.

Innovative ROSE OS
HiFi Rose OS system provides an innovative musical experience. Stream and play ultra-high-quality music, 4K high-definition video, ad-free YouTube, Podcasts, various radio stations from around the world, CD playback/Ripping, and more.

Connect Anything

Wired/Wireless Connection
Seamless streaming over the network is possible.
It supports Airplay and DLNA functions and can connected to smartphones,
computers and tablet PCs via Wi-Fi / Giga Ethernet / Bluetooth communication.

Build a home media library
Designed to contain enough storage in consideration of listening to HiFi music sources, RS150 can recognize up to 4TB of SSD, 10TB of external HDD, and 400GB of MicroSD. Also, it supports connection with NAS. Experience high-quality music without worrying about drive capacity from now on.

High Performance Input / Output Terminal
Compatible with multiple devices via several kinds of terminals. Supporting a variety of input and output terminals, RS150 completes the ultimate connectivity.

RA280 FEATURES
Class AD Amplifier with GaN FET: This type of amplifier retains the efficiency of Class D amplifiers while incorporating GaN (gallium nitride) FETs to produce sound quality that is similar to that of analogue amplifiers.

Bass and treble balance control: ±15 dB bass (100 Hz) and treble (10 kHz) adjustments are possible with this high-fidelity active EQ for natural tone shaping.
Two Fully Separated Mono Amplifier Modules: Designed with independent left and right amplifier modules, each with a 250W (4Ω and 8Ω) output stage, the combined 500W stereo output improves sound clarity and spatial definition.

High-Efficiency Power Supply: A 2.5 kW power factor correction (PFC) circuit and silicon carbide FETs are used for reduced heat generation and increased efficiency, as well as consistent, dependable operation.

Moving Magnet Phono Amplifier: Using high-precision compensation circuitry, this amplifier allows moving magnet input and provides vinyl aficionados with accurate, distortion-free sound reproduction.

RS150B SPECIFICATION
OS:Rose OS Ver 1.22.4 (based on Customized Android 7.1)
Design
Size:430(W) x 316(D) x 123(H) mm
Weight: 13 kg
Body: Milled from Solid Block of High Purity Aluminum, Minimizing Vibrations and Noise.
Display: 14.9-inch-Wide HD IPS Touch Screen LCD
CPU: Hexa Core CPU
- Dual-core Cortex-A72 up to 1.8GHz
- Quad-core Cortex-A53 up to 1.4GHz
GPU: Mali-T864 GPU, OpenGL ES 1.1/2.0/3.0/3.1, OenVG1.1, OpenCL, DX11
MEMORY: LPDDR3 4GByte

DAC Chip:ESS Technology, SABRE ES9038PRO
Output level:6.5Vrms (Balanced),2.2Vrms (Unbalanced)
THD:0.0002%(Balanced,1KHz 6.5Vrms),0.0003%(Unbalanced,1KHz 2.2Vrms)
THD + N
- 0.0003%(Balanced, 1KHz 6.5Vrms)
- 0.0004%(Unbalanced,1KHz 2.2Vrms)
IMD:
-103dB (Balanced)
-103dB (Unbalanced)SMPTE 4:1, 60Hz:7kHz
Signal to Noise Ratio:
- 121dB (Balanced),
- 118dB (Unbalanced),A-wt
Dynamic Range: Max 132 dB (CCITT filter)
Stereo Crosstalk:Max -138dB, 20-20kHz
Output Frequency Response:20Hz to 20,000(+/-0.5dB)
Output Impedance:50?

Network connection:
- Network Wired :Ethernet 10/100/1000 BASE-T
- Wireless : External USB type WiFi Dongle supported
- Bluetooth BT : External USB type BT WiFi Dongle supported. ( A2DP Sink, AVRCP v1.3 )
* A few types of WiFi, BT dongle is not supported.

Audio service:
Streaming Airplay: / DLNA / Roon Ready / MQA Full Decoder
Music service: TIDAL / Internet Radio / Podcast
Input, Output

Audio input: Optical x 1, COAX x 1, Line-IN x 1, AES/EBU x 1, HDMI ARC x 1, USB DAC x 1
Audio output: Optical x 1, COAX x 1, Pre-OUT (Balanced x 1, Unbalanced x 1), I2S-DVI x 1,I2S-RJ45 x 1, AES/EBU x 1
Video output: HDMI 2.0x 1 ( up to 3840 x 2160 / 60Hz )
Media connection File system: SMBv1, SMBv2 /FTP / WebDav / NTFS / eXfat / FAT32
Storage interface: USB3.0 x 2, MicroSD x 1, SSD x 1
Supported codec:
Audio WAV, FLAC, AIFF, WMA, MP3, OGG, APE, DFF, DSF, AAC, CDA, AMR, APE, EC3, E-EC3, MID, MPL, MP2, MPC, MPGA, M4A
PCM: 8KHz~384KHz(8/16/24/32bit per Sample)
Native DSD: DSD64(2.8MHz)/DSD128(5.6MHz)/DSD256(11.2MHz)/ DSD512(22.5792Mhz)

Video: ASF, AVI, MKV, MP4, WMV, MPEG-1, MPEG-2, MPEG-4 H.263, H.264, H.265, VC-1, VP9, VP8, MVC H.264/AVC, Base/Main/High/High10 profile@level5.1 up to 4Kx2K@30fps H.265/HEVC, Main/Main10 profile@ level 5.1 High-tier up to 4Kx2K@60fps
Power Input Voltage: AC100-230V 50/60Hz
Input Power: 55W Fuse : T3.0AL/250V
Update SW update via internet, USB OTA, ROSE Store

Remote control:
Remote controller Bluetooth Remote controller Remote App ROSE Connect (Android, iOS) / Google PlayStore, App Store

Accessory: Power cord x 1, Bluetooth Remote controller x 1 (AAA battery x 2), Simple Guide x 1,SSD screw x 4, Bluetooth/WiFi dongle x 1 (sold separately)

RA280 SPECIFICATION

Design
Size: 16.9” W x 13.98” D x 4.06” H
Weight: 20.94 lbs
Body: Solid Aluminum, Rust-proof Steel

Amplifier Output
4Ω: 250W x 2ch (500W)
8Ω:

Subwoofer Output
Mono: 1Wrms (2.218 dBu)
Balanced Input: 600mV (≈ 250W x 2ch)

Input Sensitivity
Unbalanced (Line 1, 2, 3) Input: 600mV (≈ 250W x 2ch)
Phono (MM) Input: 5mV (≈ 250W x 2ch)

Input Impedance
Unbalanced (Line 1, 2, 3) Input: 47kΩ
Phono (MM) Input:

Bandwidth
- 20Hz ~ 20kHz: +0, 0dB (≈ 250W x 2ch, 8Ω Speaker Output)
- 10Hz ~ 66kHz: +0, -1dB (≈ 250W x 2ch, 8Ω Speaker Output)
- 10Hz ~ 85kHz: +0, -3dB (≈ 250W x 2ch, 8Ω Speaker Output)
- 20Hz ~ 20kHz: +0, 0dB (≈ 1W x 2ch, 8Ω Speaker Output)
- 10Hz ~ 66kHz: +0, -1dB (≈ 1W x 2ch, 8Ω Speaker Output)
- 10Hz ~ 85kHz: +0, -3dB (≈ 1W x 2ch, 8Ω Speaker Output)

Total Harmonic Distortion (THD)
Balanced & Unbalanced (Line 1, 2, 3) Input: 0.007% (@125W) (≈ 250W x 2ch)

Damping Factor
Speaker Output: >250 (≈ 250W x 2ch)

Signal to Noise Ratio (S/N)
Balanced / Unbalanced / Phono (MM): 109dB / 109dB / 85dB (≈ 250W x 2ch)

Output Impedance
Speaker Output: 30mΩ (≈ 250W x 2ch)

Tone Control
Bass (100Hz) / Treble (10kHz): ±15dB (≈ 1W x 2ch, Speaker Output)
Turnover: 500Hz (+13dB @100Hz) (≈ RIAA)
Phono (MM) Roll-off: 2.1kHz (-13.74dB @10kHz) (≈ RIAA)

Power
Output Power: 500W (SMPS) (+ Maximum Output: 600W)
Input Voltage: AC100-240V, 50/60Hz (Standby Mode Power Consumption < 0.5W)

Audio In/Out on Rear
Trigger In: Voltage can be turned on 3.3V ~ 12V
Trigger Out: Voltage can be turned on 12V

Remote Control
IR Input: 38kHz Infrared Ray (Within 10m operating distance)

Orders ship Sunday through Friday from our offices in Dubai, UAE.

In-stock products typically ship within 48 hours and should be expected to arrive in 3-4 business days. Orders outside of the UAE should be expected to arrive in 5-7 business days.

Pre-order and backorder products will state the approximate delivery timeline beside the Add To Cart button.

If you would like to place a custom order, chat with our specialists for a guided shopping experience. Once your order has been placed, a timeline will be provided depending on your order details.

- Free delivery within the UAE
- Shipping charges will be calculated upon checkout for orders outside of the UAE (Bahrain, Oman, Kuwait, Saudi Arabia & Qatar).
- Taxes and duties are calculated according to the applicable laws of the state or country an item is shipped to and are the customer's responsibility.

For additional information on shipping and our exchange & return policy visit our help center.

Installation charges are applicable and can be paid upon delivery for our clients based in Dubai.

- Installation Charges: AED 450 Per Hour
- Speaker Cables: AED 32 Per Meter
- Trunking: AED 10 Per Meter

For clients based outside of the UAE, please contact our specialists and we will share an estimate based on your requirements.