Sinilink XY-S100H 2.1 Channel Bluetooth Audio Power Amplifier Board
An overview of the Sinilink XY-S100H, a versatile 2.1 channel Bluetooth audio amplifier board designed for high-fidelity sound reproduction.
Product Overview
The Sinilink XY-S100H is a 2.1 channel Bluetooth digital power amplifier board featuring a 50W*2 + 100W subwoofer output. It supports Bluetooth 5.0, AUX input, U disk playback, and USB sound card functionality. The board offers independent control for left and right channels, treble, and bass, along with a 360-degree stepless tuning rotary encoder for volume and other adjustments. It is compatible with the Sinilink APP for enhanced control on Android and iOS devices.
Key sound characteristics include: Pure HIFI sound, gentle and delicate midrange, surging and shocking bass, and pure and transparent treble.
Model Comparison: XY-S100H vs. XY-S100L
| Feature | XY-S100L Ultimate Edition | XY-S100H Extreme Edition |
|---|---|---|
| Picture | [Image of XY-S100L] | [Image of XY-S100H] |
| Character | Designed by efficient Class-D stereo amplifier, with excellent audio performance, good distortion and anti-pop function, Sound mellow, voice permeability, superior sound. | Designed by efficient Class-D stereo amplifier TPA3116D2, with superhigh fidelity (HIFI) and stronger driving ability. |
| Sinilink APP | YES | YES |
| Power Supply | DC5-26V/5A | DC5-26V/5A |
| Bluetooth Version | 5.0 | 5.0 |
| Audio Input | Bluetooth + AUX + U disk + USB soundmax | Bluetooth + AUX + U disk + USB soundmax |
| Volume control | Rotate 360 degrees by encoder | Rotate 360 degrees by encoder |
| Audio output | R&L Channels +3.5mm Audio jack | R&L Channels +3.5mm Audio jack |
| Output power | 50W*2 (left and right channels) +100W (heavy bass) | 50W*2 (left and right channels) +100W (heavy bass) |
| Output filter | NO filter | Professional audio LC filter |
| Protections | Overcurrent, short circuit, overtemperature protection and electrostatic protection | Over temperature, overvoltage, undervoltage, DC-detect and short circuit protection and electrostatic protection |
| Thermal solution | Heat sink and shell | Heat sink and shell |
| Left and right channel speakers | 4-8Ω, 10-100W | 4-8Ω, 10-100W |
| Subwoofer | 4-8Ω, 20-200W | 2-8Ω, 20-200W |
| Size | 95mm*88mm*25mm | 95mm*113mm*25mm |
| Weight | 156g | 189g |
Key Features and Controls
Multi-function Main Knob
The main knob features a classic look and utilizes a rotary encoder, typically found in high-end amplifiers. It allows for 360-degree stepless tuning, offers a smooth feel, and supports one-key start/stop functionality. A long press acts as the power switch, making machine operation simple and convenient.
Function Description
The board accepts a wide power supply range of DC5-24V via a DC plug (?). It provides connections for:
- Bass Output: For subwoofer connection to passive speakers.
- Left and Right Channel Output: For stereo speakers.
- 3.5mm Audio Output: For active speakers.
- AUX Audio Input: For wired audio sources (?).
- U disk or USB Sound Card Input: For digital media playback or external audio processing (?).
Controls include:
- Subwoofer Frequency: Adjustable from 20-200Hz (?️).
- Subwoofer Volume: Controls the bass level (?️).
- Left and Right Soundtrack Treble: Adjusts high frequencies for stereo channels.
- Left and Right Soundtrack Bass: Adjusts low frequencies for stereo channels.
- Main Volume: Short press to play/pause (▶️/⏸️), long press to turn on/off (?/?).
Component Layout and Construction
Bare Board Structure
The amplifier board features:
- A high-quality all-copper DC plug for durability.
- A shield power inductor.
- High-quality energy storage capacitors (⚡).
- Low noise front-stage operational amplifiers (op amps).
- A large area heat sink (♨️) for efficient thermal dissipation.
- Original imported TPA3116D2 power amplifier chips (?) located beneath the heat sink.
Note: The XY-S100H model contains two TPA3116D2 chips.
Installation and Package Contents
Installation Diagram
The assembly involves connecting the upper and lower covers using M2*18 copper pillars (?) and M2*3 screws (?). A heat sink, attached with special thermally conductive silica gel, is mounted to ensure optimal heat dissipation. Knob caps are added for control access.
Heat Sink Mounting: The large heat sink is closely attached to the copper-clad shell using thermally conductive silica gel. This doubles the heat dissipation area, ensuring high performance even under full load.
Product Shipping List
The package typically includes:
- Upper cover
- Product bare board
- Lower cover
- 6 knob caps
- 4 x M2*4+3 copper pillars
- 8 x M2*3 screws
- 4 x M2*18 copper pillars
- Heat sink
- Thermal conductive silicone paste
Product + Packaging Weight: 189g
Product Specifications
Dimensions
The product dimensions are 113mm (length) x 95mm (width) x 25mm (height).
Parameter Table
| Parameter | Specification |
|---|---|
| Brand | XINYI Sini Audio |
| Product Number | XY-S100H |
| Product Name | 2.1 channel Bluetooth audio power amplifier board |
| Power Supply | DC5-26V/10A or more |
| Audio Channel | 2.1 channel |
| Bluetooth Version | 5.0 |
| Audio Input | Bluetooth + AUX + U disk + USB sound card |
| Audio Output | Left and right channel + subwoofer + 3.5mm interface stereo output |
| Volume Adjustment | High-end encoder knob adjustment, smooth feel |
| Frequency Range | 20Hz-30KHz |
| S/N Ratio | 92dB |
| Output Power | 50W*2 (left and right channels) + 100W (subwoofer) |
| Adapted Speakers (Satellite) | 10W-100W / 4Ω-8Ω |
| Adapted Speakers (Subwoofer) | 20W-200W / 2Ω-8Ω |
| Protection Mechanism | Static electricity, overvoltage, undervoltage, overheating, DC detection, and short circuit protection (?️) |
| Unique Function | Support Sinilink-APP control |
| Product Size | 113mm*95mm*25mm |
| Product Weight | 189g |
Notes for Product Use
Heat Sink Installation
During assembly, ensure the heat sink is properly installed. Apply the silicone gel to the radiator and then attach it to the amplifier chip. Crucially, the radiator metal shell must not contact surrounding components to prevent short circuits (❌). The top plate should press the heat sink to enhance heat dissipation.
Audio Input Mode Switch
The product defaults to Bluetooth mode (?). If an external device is connected to AUX or U disk, it will automatically switch to that input (priority: AUX > U disk > Bluetooth). Audio mode can also be selected via the APP (?). For AUX connections, shielded cables are recommended to reduce noise. For U disk playback, MP3 format is preferred; WAV format sampling rates should be within 44100Hz. When using the USB sound card function, connect via USB data cable; most systems will auto-detect it.
Power Supply Selection
The power supply range is 5-26VDC, with a recommended 12V/24V adapter capable of at least 10A output. The power supply's output current must exceed the total horn power. For 4Ω horns, a supply voltage below 21V is recommended; for 8Ω horns, 24V is recommended. Exceeding 26V can damage the board. If the amplifier restarts when volume increases, it indicates insufficient power supply; use a supply with higher current output.
Horn Selection
- Left and Right Channels: Can push 10W-100W speakers (4-8Ω impedance). Full-frequency horns (?) are recommended.
- Subwoofer Channel: Can push 20W-200W speakers (2-8Ω impedance), with a frequency response of 20Hz-200Hz being optimal.
If using multiple horns in parallel, ensure the total impedance remains above 4Ω to prevent the amplifier from entering overcurrent protection.
Signal Problem
The product uses a PCB antenna with a visible range of approximately 15 meters without shielding. If Bluetooth is not found or connection is unstable, it may be a signal issue (⚠️). Avoid using the device near routers or on metal surfaces, as these can interfere with the antenna signal. If the speaker enclosure is metal, ensure the antenna is positioned outside it.
Connecting to Your Device
Connecting to Mobile Phone via Bluetooth
When the Bluetooth board is powered on, the blue LED flashes quickly, indicating Bluetooth connection mode (?). On your mobile phone, search for the device named "XinYi". Click "XinYi" to complete the connection. The blue LED will turn solid when connected. To play music, open your phone's music app; the blue LED will then flash slowly during playback.
Important: Do not connect to "Sinilink-APP" directly through your phone's Bluetooth settings. This connection is managed by the dedicated Sinilink APP (?). If you accidentally connect this way, unpair the device and search again to ensure proper APP connectivity.
Downloading the Sinilink Mobile APP
Scan the provided QR code to download the Sinilink APP. Foreign customers can also find the app by searching for "sinilink" in the Google Market.
Connecting via Mobile APP
To connect using the Sinilink APP:
- Ensure all necessary APP permissions are enabled in your phone's settings.
- Open the Sinilink APP.
- Click the indicated icon (often a yellow dot or similar) to initiate the connection process.
- Select "Connect Bluetooth device".
- Search for available Bluetooth devices and connect to "Sinilink-APP".
- Once connected, the APP will confirm the successful connection.
Note: When using the APP, ensure location services are enabled on your phone, as this is often required for Bluetooth scanning and connection.
