Sinilink XY-W50L HIFI Class 50W*2 Stereo Bluetooth Digital Power Amplifier Module with WIFI Timing Clock

Product Overview

The Sinilink XY-W50L is a HIFI class stereo digital power amplifier module featuring Bluetooth 5.0 connectivity and a WIFI timing clock function. It delivers 50W*2 of output power and supports various audio inputs including Bluetooth, AUX, U disk, and USB sound card. The module is designed for excellent audio performance with features like global time zone synchronization, automatic network time service, and precise timing. It offers multiple alarm settings and adjustable brightness levels.

The device is equipped with a rotary encoder for stepless tuning and smooth feel, enabling one-key start and stop. It supports mobile APP control via Sinilink, offering remote firmware upgrades. Key features include:

• 50W+50W stereo output
• Bluetooth 5.0 connectivity
• WIFI network automatic time service
• Global time zone support
• 6 groups of alarms can be set
• 8 levels of brightness adjustment
• Multiple audio inputs: Bluetooth, AUX, U disk, USB sound card
• Active and passive speaker outputs
• HIFI 2.0 audio quality
• Precise timekeeping
• Support for Android and iOS mobile APP control
• Support for remote firmware upgrade
• Equipped with a high-precision clock chip and memory battery for accurate time even without network connection.
• Automatic screen rest function
• Parameters are automatically saved when power is off.

The front panel features a clear 0.8-inch digital display showing time and date, along with controls for volume and settings. The module is designed for efficient Class-D amplification, providing good distortion and anti-pop functions for mellow sound and vocal clarity.

1. Comparison of W50H and W50L

The W series 50W*2 stereo Bluetooth digital power amplifier board + WIFI timing clock selection table:

2. Multi-function Main Knob

The main knob features a classic look and adopts a rotary encoder commonly found in high-end power amplifiers. It allows for 360-degree stepless tuning with a smooth feel. A short press acts as a one-key start/stop function, while a long press switches the machine on or off, making operation simple and convenient.

3. Function Introduction

The rear and top panel of the device includes various input and output ports, as well as control buttons. These include:

• U disk or USB sound card input
• AUX audio input
• 3.5MM audio output connected to active speakers
• SPKL + / SPKR + terminals for Left and right channels connecting to passive speakers.
• DC5--24V power supply input.
• Set button
• UP button
• Down button
• The main control is the rotary encoder, adopted from high-end audio equipment, providing 360-degree stepless tuning.
• Short press on the main knob functions as play/pause.
• Long press on the main knob functions as power on/off.

Additionally, after an alarm sounds, pressing any button will turn off the alarm.

4. Clock Description and Key Operation

WIFI Clock Description

1. Mobile APP control supports Android and iOS systems and remote firmware upgrades.
2. After successful APP pairing, the time zone is automatically sent to the product, and the current time zone + time format (12/24 hour system) can be set.
3. Features a 0.8-inch digital tube display for time and date, 6 groups of alarm clocks, and 8 levels of brightness adjustment.
4. Equipped with a global time zone, ensuring consistency with the user's local time regardless of geographic location. Automatic network time synchronization occurs every hour. If the network is disconnected, it synchronizes with the time of the country or region, with an error generally within 1 second (due to network delay).
5. Includes a high-precision clock chip and a memory battery to maintain time accuracy even without a network or power supply.
6. Features an automatic screen restoring function; if enabled, the screen rests within 10 seconds of no key operation.
7. Set parameters are automatically saved when power is off.

Note: The product comes with a high-precision clock chip. If network connectivity is not achieved, it will not affect the normal use of the product's timing functions.

Key Operation

1. Adjust brightness: In the operation interface, press the UP/DOWN button to adjust brightness.
2. Set time: In the operation interface, long press the SET button for 1 second to enter the time adjustment interface. Short press SET to switch parameters (time, month, day, year). Use UP/DOWN buttons to modify parameters. Long press SET for 1 second to exit.
3. Set clock (alarm): In the operation interface, long press the SET button for 3 seconds to enter the alarm setting interface. Short press SET to switch parameters. Use UP/DOWN buttons to modify parameters. Long press SET for 1 second to exit. Alarm parameter description: a1.on/a1.of (where 'a' is the alarm number 1-6, 'on' means alarm is active, 'of' means alarm is off).
4. Turn sleep mode on/off: In the operation interface, long press the UP button for more than 1 second to toggle sleep mode. 'LP' indicates sleep mode is active (screen rests after 10 seconds of inactivity; any key press wakes it up).
5. Turn on/off rotating display (month, day, time): In the running interface, press the DOWN button for more than one second to toggle the rotating display.

5. Nude Plate Construction

The bare board structure displays several key components:

• Bluetooth status indicator (blue)
• High-quality all-copper DC plug with long life
• Free large area heat sink
• XY-W50L branding on the PCB.
• Sinilink XINYI 84018 branding on the PCB.
• High-quality energy storage capacitors
• Plug in the battery compartment, supporting Battery model: CR927
• Buzzer (alarm clock)
• Time synchronization indicator (red)
• Wifi status indicator (blue)

6. Installation Schematic Diagram

The installation diagram illustrates the assembly of the amplifier module into its enclosure. The components involved include:

• Knob cap
• Heat sink
• Upper cover
• M2*8 screw
• Circuit board
• Lower cover
• M2*26 copper pillar

The diagram shows how these parts fit together, along with the DC power input connector.

7. Product Shipping List

The product package includes the following items:

• Upper cover
• Product bare board
• Lower cover
• 4 x M2*26 copper pillars
• 1 x Knob cap
• 4 x M2*3 screws
• 4 x M2*8 screws
• Heat sink
• Free screwdriver
• DC adapter

Product + Packaging Weight: 93g

8. Product Size

The dimensions of the Sinilink XY-W50L module are:

• Width: 72mm
• Depth: 45mm
• Height: 31mm
• Knob diameter: approximately 18mm

9. Product Parameter Table

Product parameter information:

Note: If the power supply is below 9V, the output power is very small. It is recommended to use a power supply above 9V. For 4 ohm speakers, use a power supply of 12V and below. For 8 ohm speakers, use a power supply of 24V and below.

10. Notes for Product Use

10.1 Heat Sink Installation

When assembling, pay attention to the installation of the radiator. The metal shell of the radiator must not be in contact with surrounding components to avoid short circuits.

10.2 Audio Input Mode Switch

The device defaults to AUX or U disk playback mode if these are plugged in. It follows a backplug device priority principle. For example, inserting AUX during Bluetooth playback will switch to AUX playback immediately. If a U disk is inserted, it switches to U disk playback immediately. Audio mode switching is also available via the APP. It is recommended to use shielded AUX cables to reduce noise. For U disk playback, use MP3 format; WAV format sampling rate must be within 44100Hz to avoid playback issues. When using the USB sound card function, connect via USB data cable without installing drivers; most systems will switch automatically. If not, manual selection is possible.

10.3 Power Supply Selection

The power supply range is 5-26VDC, compatible with standard 5.5-2.1/2.5 power adapter plugs. A 12V/24V standard power adapter with a current output above 2A is recommended. The power supply size should match the horn power. For 8 ohm, 50W horns, use a 24V power supply with at least 4A current; insufficient current may cause sound lag. For 4 ohm horns, the power supply should be controlled within 20V; high voltage may cause overheating. Power supplies below 9V result in extremely small output power; voltages above 9V are recommended. The supply voltage must not exceed 26V, as higher voltages can damage the circuit board. If the amplifier restarts when volume increases, it may be due to insufficient power supply; consider a power supply with a larger output current.

10.4 Horn Selection

This amplifier can continuously output 50W*2 power and supports 10W-100W horns. Using 8 ohm or 4 ohm horns is recommended. If the horn power is within 50W, use a 12V power supply or reduce playback volume. For horns greater than 50W, a higher supply voltage (up to 26V) is better. If the music horn exhibits 'hiccups', first check for power supply insufficiency and consider a higher-rated power supply. Second, check for thermal protection and improve heat dissipation or reduce playback volume. If multiple horns are used in parallel, ensure the total impedance remains above 4 ohms to prevent the amplifier from entering overcurrent protection.

10.5 Signal Problem

This product uses a PCB antenna with a visible distance of 15m without shielding. If Bluetooth is not found or connection fails, it may be a signal issue:

• Stay away from routers when in use.
• Avoid use on metal surfaces, which can affect the PCB antenna signal.
• If the speaker has a metal shell, ensure the antenna is led away from the shell, as metal can shield the signal.

11. How to Connect Your Mobile Phone to Bluetooth

Ensure Bluetooth on your mobile phone is enabled and the device is in connection mode (blue LED flashes quickly). If AUX is inserted, it may prevent Bluetooth connection. Search for Bluetooth devices on your phone and select 'XinYi'. Upon successful connection, the blue LED will turn solid. Play music from your phone; the blue LED will then flash slowly, indicating playback state. If 'Sinilink-APP' appears in the search results, do not connect to it for Bluetooth audio playback; connect only to 'XinYi'. If already connected to 'Sinilink-APP', unpair and search again.

12. How to Download a Mobile APP

Scan the QR code provided to download the 'Sinilink' APP. For international users, search for 'sinilink' in the Google Play Store.

[QR code description: A square, pixelated code that can be scanned by a mobile device to initiate an app download.]

13. Mobile Phone APP Control

The Sinilink APP offers advanced control features for the amplifier module, supporting both Android and iOS devices. The APP provides a visual interface for managing playback modes, volume, sound effects, and song selection. It allows for control over Bluetooth connection, audio source switching (USB, SD card, Bluetooth, sound card, AUX), and various EQ presets.

[APP screenshot description: Shows the mobile app interface with controls for playback (play/pause, next/previous track), volume adjustment, audio source selection (U disk, Bluetooth, sound card, AUX), and EQ settings with options like Rock, Pop, Jazz, etc.]

14. The APP Controls the Bluetooth Connection

The 'Control device' interface within the APP allows users to manage various settings:

• Time Format: Switch between 12-hour and 24-hour formats.
• Sleep on/off: Activate sleep mode, which turns off the digital tube display after 1 minute of inactivity.
• Alarm OFF: Turn off the alarm after it sounds.
• Backlight brightness adjustment: Adjust backlight level from 1 to 8.
• Sync with phone time zone: Automatically syncs the device's time zone with the phone's.
• 6 groups of alarms can be set.
• Firmware version and Remote firmware upgrade options are available.

To connect via Bluetooth using the APP:

1. Click 'Bluetooth' to enter the Bluetooth connection interface.
2. The APP will search for available devices. Select the desired device (e.g., 'XinYi').
3. Upon successful connection, the interface shows playback controls, audio switch options (USB, BT, Sound card, AUX), and EQ settings.

[Phone settings screenshot description: Shows a quick settings panel on a smartphone with toggles for WLAN, Bluetooth, Flashlight, Sound, Auto-rotate, Huawei Share, Airplane mode, Mobile data, Location, Screenshot, Eye Comfort, Personal hotspot, Screen Recorder, Wireless Projection, Do Not Disturb, NFC, Dark mode, Ultra Power Saver, Navigation Dock.]

Note: Ensure location information is enabled on your phone when using the APP for automatic Wi-Fi name detection.

15. How to Distribute the Distribution Network

To connect the device to a network, follow these steps:

Enter the operation interface and press the SET button for more than 5 seconds to enter Touch pairing state. Press the SET button again for 5 seconds to enter AP pairing state.

• Touch mode: Blue light interval 1 second, flash 4 times.
• AP mode: Blue lamp continues to flash quickly.

The device enters Touch pairing mode by default. If pairing fails, select AP mode. Connect to a Wi-Fi network named 'Sinilink Product' with the password '12345678' and follow the APP prompts.

15. Product Networking Must See the Matters Needing Attention

Product connection network matters needing attention:

1. Ensure your phone is connected to a personal Wi-Fi network using the 2.4GHz frequency band. 5GHz bands are not compatible. If your router combines 2.4GHz and 5GHz bands, reconfigure it to separate them and choose the 2.4GHz band for pairing.
2. Make sure the 'Sinilink' APP has location permission enabled. This allows the APP to automatically detect the Wi-Fi name. If location permission is off, the APP can only determine approximate location.
3. Ensure the product enters the pairing state (blue light flashes 4 times per second for Touch Pair mode). If Touch Matching fails, select AP mode and follow the APP prompts.
4. When adding the device in the APP, confirm that the APP has successfully obtained the Wi-Fi name and that the entered Wi-Fi password is correct. If the Wi-Fi name is not obtained, recheck location permission or manually input the Wi-Fi name.
5. Keep your phone and device as close to your router as possible during the process.