Rose electronics RA280 Owner's Manual
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Rose electronics RA280 Owner's Manual

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Beyond Audio, HiFi ROSE
Top-notch Master Integrated Amplifier RA280
- 1 -

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Summary of Contents for Rose electronics RA280

  • Page 1 Beyond Audio, HiFi ROSE Top-notch Master Integrated Amplifier RA280 - 1 -...
  • Page 2 Beyond Audio, HiFi ROSE - 2 - - 3 -...
  • Page 3 HiFi ROSE Products Top-notch Master Integrated Amplifier RA280 ▪Class AD Amplifier with next generation GaN FET ▪LC filter independently developed by HiFi ROSE ▪Highly efficient and stable power supply ▪Powerful 250W output ▪Phono Amplifier for MM ▪Control Volume for Bass/Treble...
  • Page 4 HiFi ROSE Products HiFi ROSE Products Advanced All-In-One Network Streamer RS520 High Performance Network Streamer RS150 Series ▪Reference Grade All-in-One Network Streamer ▪Flagship Network Streamer ▪Network Streamer + DAC + Class AD Amplifier with next generation GaN FET ▪Network Streamer + DAC ▪High-Resolution Music Playback available(DSD512, PCM32bit/768kHz) ▪High-tech DAC design for pure sound with low noise and low distortion ▪A Femto Clock provides Ultra Precision...
  • Page 5 HiFi ROSE Products HiFi ROSE Products HiFi Network Streamer RS201 Series Premium Media Player RS350 ▪Reference Grade All-in-One Network Streamer ▪Casual All-in-One Speaker ▪Network Streamer + DAC + AMP ▪Network Streamer + DAC + AMP + SPEAKER ▪Built-in High-Performance Power Amplifier(50W*2ch) ▪3-Way full-range speaker configuration ▪High-Resolution Music Playback available(DSD256, PCM32bit/384kHz) ▪Playback of various file formats available(Music, Video, Image)
  • Page 6 HiFi ROSE Products Innovative ROSE OS System HiFi ROSE CD Drive RSA780 Series ▪USB-isolator Adopted to block motion noise Spotify Connect Hi-Res Audio ▪USB-B Type Port Adopted for HiFi Audio ▪900g weight for CD playback without external shaking Spotify Connect allows you to play and HiFi ROSE devices are certified with a ▪Minimized Motion Noise by applying Insulators wirelessly control Spotify music on your ROSE...
  • Page 7 Streaming You can simply and easily play music stored on your phone on your ROSE device. Enjoy a lossless, high-quality streaming service. RA280 Product User Manual Playlist You can create your own playlist. Make a playlist on Music and ROSE Tube and check it out at Home - My Music.

  • Page 8: Table Of Contents

    Table of Contents Safety Precautions 1. Warnings 2. Precautions Components List Location / Function of Buttons and Ports 1. Front Side of the Product 2. Rear Side of the Product 3. Remote Control How to Install the Product 1. Product Design Method and Recommended Installation Location 2.

  • Page 9: Safety Precautions

    Safety Precautions Caution • Precautions for High-Temperature Parts During Set Operation 1. Warnings - These parts are for discharging the high temperature inside the set to the outside, and they may cause burns during the set operation. Be sure to turn off the power and wait for 30 minutes. •...

  • Page 10: Location / Function Of Buttons And Ports

    2. Rear Side of the Product Location / Function of Buttons and Ports 1. Front Side of the Product Power Speaker Trigger (AC Input~) Output Circuit Sub Woofer Phono GND Front LED Tone Controll / Power Button Output Breaker Dimming Switch Bypass Selector / Status Display LED Balanced...

  • Page 11: Remote Control

    3. Remote Control How to install the Product 1. Product Design Method and Recommended Installation • This product is designed to be used on a table or shelf. • This product can malfunction during cold weather or hot weather. (Operating temperature: 0 to 40℃, Storage temperature: -10 to 50℃) •...

  • Page 12: How To Connect The Power Cord

    • This product includes a removable power cord. Please connect the power cord after connecting all audio cables. RA280 • As shown in the figure below, you can connect the analog output port of the source device to the analog audio input(Balanced/Line 1, 2, 3) of this product.

  • Page 13: Connecting The Phono(Mm) Input Port To An Audio Device

    3-4. Trigger Input Terminal and Pin out Concentric Plug RA280 • You can connect the analog output of the turntable to the phono analog audio input (PHONO IN) • The trigger function can control the power by linking the product and the source device.

  • Page 14: Mobile Wi-Fi Setting

    4. Mobile Wi-Fi Setting 4-2. IP Connection Screen 4-3. Device Registration You can use the app by directly entering • Amplifier Connection Standby Status 4-1-1. Search Screen 4-1-2. Search Screen and registering the IP address to which the Information Screen amplifier is connected by tapping the IP When you turn on the power of the (No Search Results)
  • Page 15 4-3-1. Device Amplifier Connection Information Screen 4-3-2. Amplifier Registration Screen This is the device registration information screen. Please read the instructions carefully and pay When you press the Next button on the last screen of 4-3-1, you will see the name of your amplifier attention to the screen.
  • Page 16 4-3-3. Amplifier Network Connection Screen 4-3-4. Amplifier Network Confirmation Screen The following screen displays the connection status between the amplifier and the network. You This screen is for checking the network connection status of the amplifier. can connect to Wi-Fi for use here. •...

  • Page 17: Amplifier Search Screen

    4-6-1). • Notice( ) : The volume of RA280 is displayed in dB units. When you press the button, the following message is displayed ‘Due to the nature of the analog volume (potentiometer) controller, there may be an error in the displayed dB value.’...

  • Page 18: Amplifier Status Information Check

    4-6. Amplifier Status Information Check 4-6-2. FW Detailed Information Screen 4-6-3. Detailed IP Information You can view the firmware (FW) details of the You can view detailed information of the amplifier. network to which the amplifier is connected. 4-6-1. Amplifier Detailed Settings Screen You can view the detailed settings of the amplifier.
  • Page 19 4-6-4. Current Status 4-6-5. Standby Mode Settings You can see the status of the current amplifier’s auxiliary functions. • Low power : Deactivates the Wi-Fi function when the amplifier is powered off. From the top, it shows information about the amplifier’s tone control bypass and dimmer status. After turning on the low power function, you can only turn on the power using the power switch or remote control.

  • Page 20: Product Specifications

    Product Specifications 4-6-6. Automatic Shutdown Settings You can turn the automatic shutdown function on/off or set the time. 1. Specifications • OFF : Disables the automatic shutdown function. • ON : Enables the automatic shutdown function. If there is no input signal for more than the set Measurement Item Condition...

  • Page 21: Appendix

    (based on 100 ㎐) will increase or decrease, as shown in the following figure. • It can be adjusted from -15dB (attenuation) to +15dB (increase) in 100Hz/0dB increments. Audio Precision Hifi ROSE RA280 Audio Precision Hifi ROSE RA280 RMS Level RMS Level Pre Amplifier - Bass...

  • Page 22: Phono Equalizer Curve

    3. Phono Equalizer Curve • The frequency characteristics of the phono amplifier of this product are as follows. Audio Precision Hifi ROSE RA280 RMS Level - 42 - - 43 -...

  • Page 23: Quality Guaranteed

    (including part costs) will be charged. • Identification Code of the Certified Company: SYH • Certification No.: R-R-SYH-RA280 - Failure due to consumer negligence during use - Repairs or modifications made by persons other than company engineers...
  • Page 24 Memo Memo - 46 - - 47 -...
  • Page 25 Memo - 48 -...

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