1. Introduction
Thank you for purchasing the SANSUI MSR-1 Bluetooth Speaker AM/FM Radio. This manual provides detailed instructions for the safe and efficient use of your device. Please read this manual thoroughly before operation and retain it for future reference.
2. Product Overview
The SANSUI MSR-1 is a compact, portable audio device combining a Bluetooth speaker with an AM/FM radio. Its design evokes a classic 1950s radio aesthetic, while offering modern connectivity options. It features a passive radiator for enhanced bass and can play music from various sources including Bluetooth, USB, microSD, and AUX input.
Image 2.1: Front view of the SANSUI MSR-1 Bluetooth Speaker AM/FM Radio, showcasing its wood finish and retro design.
3. Key Features
- Retro Design: Inspired by 1950s radio aesthetics, offering a classic look.
- Compact & Portable: Palm-sized dimensions for easy carrying and placement.
- Powerful Bass: Equipped with a passive radiator for enhanced low-frequency sound reproduction.
- Bluetooth Connectivity: Wirelessly stream audio from smartphones and other Bluetooth-enabled devices (Bluetooth Ver4.2+EDR Class2, A2DP, AVRCP profiles).
- AM/FM Radio: Built-in tuner for receiving AM (520-1620kHz) and FM (76-108MHz) broadcasts.
- Multiple Playback Options: Supports audio playback from USB memory (up to 32GB, FAT32, MP3 format) and microSD cards (up to 32GB SDHC, FAT32, MP3 format).
- AUX Input: 3.5mm mini-plug external input for connecting non-Bluetooth audio sources.
- Built-in Rechargeable Battery: For portable use.
Image 3.1: Diagram illustrating the compact size and the passive radiator technology for powerful bass reproduction.
4. Setup
4.1. Unpacking
Carefully remove the SANSUI MSR-1 from its packaging. Verify that all accessories are present:
- SANSUI MSR-1 Unit
- Micro USB Cable (1 pc)
- Instruction Manual (including warranty information)
4.2. Powering the Device
The MSR-1 operates on an internal rechargeable battery or via a USB AC adapter (sold separately).
- Charging: Connect the supplied Micro USB cable to the unit's Micro USB port and the other end to a USB AC adapter (output 5V/1A or higher, AC100V 50/60Hz recommended). The charging indicator will illuminate.
- First Use: For optimal battery life, fully charge the unit before its first use.
5. Operating Instructions
5.1. Power On/Off and Volume Control
Locate the ON/OFF / VOL knob on the front panel.
- Power On: Rotate the ON/OFF / VOL knob clockwise until it clicks and the display illuminates.
- Power Off: Rotate the ON/OFF / VOL knob counter-clockwise until it clicks and the display turns off.
- Volume Adjustment: Once powered on, continue rotating the ON/OFF / VOL knob clockwise to increase volume and counter-clockwise to decrease volume.
5.2. Mode Selection
Use the mode switch (labeled BT/AUX, FM, AM) to select your desired audio source.
5.3. AM/FM Radio Operation
- Select Mode: Set the mode switch to FM or AM.
- Extend Antenna: For FM reception, fully extend the telescopic antenna located on the back of the unit. For AM reception, the internal antenna is used, but adjusting the unit's orientation may improve reception.
- Tune Station: Rotate the TUNING knob to scan for radio stations. The frequency will be displayed on the front panel.
Image 5.1: Close-up view of the control panel, showing the tuning knob, volume/power knob, and mode switch for AM, FM, and BT/AUX.
5.4. Bluetooth Operation
- Select Mode: Set the mode switch to BT/AUX. The unit will enter Bluetooth pairing mode, indicated by a flashing Bluetooth indicator (if present, or an audible prompt).
- Enable Bluetooth on Device: On your smartphone or other Bluetooth device, enable Bluetooth and search for available devices.
- Pair: Select "SANSUI MSR-1" (or similar name) from the list of found devices. Once paired, the unit will emit a confirmation sound, and the Bluetooth indicator will stop flashing.
- Play Audio: Start playing audio on your connected device. The sound will be output through the MSR-1 speaker.
Image 5.2: The SANSUI MSR-1 wirelessly connected to a smartphone via Bluetooth, suitable for outdoor use due to its built-in battery.
5.5. USB/MicroSD Playback
The MSR-1 supports MP3 audio files from USB memory sticks and microSD cards.
- Insert Media: Insert a USB memory stick into the USB port or a microSD card into the microSD slot.
- Automatic Playback: The unit should automatically detect the media and begin playing MP3 files.
- Navigation: Use the playback control buttons (e.g., Play/Pause, Next/Previous Track) on the unit to control audio playback.
5.6. AUX Input Operation
- Select Mode: Set the mode switch to BT/AUX.
- Connect Cable: Connect a 3.5mm audio cable (not supplied) from your external audio device's headphone jack or line-out to the AUX input port on the MSR-1.
- Play Audio: Start playing audio on your external device. The sound will be output through the MSR-1 speaker.
6. Maintenance
6.1. Cleaning
To maintain the appearance of your MSR-1, wipe the exterior with a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents.
6.2. Battery Care
The MSR-1 contains a built-in rechargeable lithium-ion battery. To prolong battery life:
- Avoid exposing the unit to extreme temperatures.
- If storing the unit for an extended period, charge it to approximately 50% every few months.
- Note: The internal battery is not user-replaceable. Attempting to replace the battery may damage the unit and void the warranty.
7. Troubleshooting
If you encounter issues with your SANSUI MSR-1, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power / Unit does not turn on | Battery is depleted. | Connect the unit to a USB AC adapter and charge the battery. |
| No sound | Volume is too low or muted. Incorrect mode selected. | Increase the volume. Ensure the correct mode (AM, FM, BT/AUX) is selected. |
| Poor radio reception | Antenna not extended (FM). Unit orientation (AM). Weak signal. | Fully extend the telescopic antenna for FM. Adjust the unit's position for AM. Try moving the unit to a different location. |
| Bluetooth pairing fails | Bluetooth not enabled on source device. Unit not in pairing mode. Device too far. | Ensure Bluetooth is enabled on your device. Set MSR-1 to BT/AUX mode. Move devices closer (within 10 meters). |
| USB/microSD playback issues | Unsupported file format. Corrupted files. Media capacity exceeded. | Ensure files are MP3 format. Check media for corruption. Verify media is 32GB or less and FAT32 formatted. |
| Noise during charging | Electrical interference from charging. | This can occur with some chargers. Operate the unit on battery power for optimal audio quality. |
8. Specifications
The following are the technical specifications for the SANSUI MSR-1 Bluetooth Speaker AM/FM Radio:
| Feature | Specification |
|---|---|
| Model Number | MSR-1 WD |
| Output Power (RMS/THD10%) | 5W |
| USB Memory Support | VER2.0, Max 32GB, FAT32, Max 999 files, Max 99 folders |
| microSD Card Support | Max SDHC 32GB, FAT32, Max 999 files, Max 99 folders |
| Bluetooth Version | Ver4.2+EDR Class2 |
| Bluetooth Profiles | A2DP, AVRCP (SCMS-T not supported) |
| FM Tuner Frequency | 76 - 108MHz |
| AM Tuner Frequency | 520 - 1620kHz |
| Speaker | 57mm Full-range + Passive Radiator |
| Playback Sources | USB/microSD (MP3), Bluetooth, AUX |
| External Input Terminal | Mini-plug (AUX) 1 system |
| Power Source | Internal Rechargeable Battery, USB AC Adapter (5V/1A or higher, sold separately) |
| Product Dimensions (W x D x H) | 15.8 cm x 10.6 cm x 9.9 cm |
| Product Weight | Approximately 580 g |
Image 8.1: Diagram illustrating the physical dimensions of the SANSUI MSR-1: 15.8cm width, 10.6cm depth, and 9.9cm height.
9. Warranty and Support
This product comes with a manufacturer's warranty. Please refer to the warranty information included in your instruction manual for details on coverage and duration. For technical support, service, or inquiries, please contact the retailer or the SANSUI customer service department.
Keep your purchase receipt as proof of purchase for warranty claims.
