Bluetooth Amplifier YS-AP100L + 12V Power Adapter Set

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This is a set including a compact Bluetooth-compatible amplifier board and a power adapter.

[Product Contents]
- Amplifier board (YS-AP100L)
- 12V 5.0A Power Adapter (Akizuki Denshi Tsusho)
- Connection terminals
- Small screwdriver
- Instruction manual (Chinese)

[Condition]
- Used a few times
- Operation confirmed

[Product Specifications (from manual)]
- Bluetooth 5.1 (Communication range: approx. 10-15m)
- 2.0ch Stereo Amplifier
- Input: Bluetooth / AUX / USB
- Power: DC12V-24V compatible
- Compatible speakers: 4-8Ω (20W-200W)
- Output: Max 100W + 100W (*depends on conditions)
- Size: Approx. 58 x 58 x 18mm
- Protection functions: Overcurrent, overvoltage, short circuit, overheat protection

*Output varies with voltage
(Example)
- 12V: Approx. 10-20W per channel
- 24V: Increases to up to 100W class
→ Heavily dependent on power supply performance ()

[Features]
- Volume knob control
- Bluetooth priority connection (automatic switching)
- Smartphone app control compatible (Android/iPhone)

[Operation Notes (Important)]
As this is a compact digital amplifier module, it has the following characteristics:

- Slight white noise or buzzing may occur depending on power supply quality and wiring environment.
- Faint noise may be present during Bluetooth connection.

*This is typical behavior for this type of product.

[Example Countermeasures]
- Use a higher voltage (e.g., 24V) power adapter.
- Shorten wiring.
- Keep distance from noise sources (AC adapter, PC, etc.).

→ This often improves the situation.

[Recommended Points]
- Easy playback by connecting to your smartphone via Bluetooth.
- Compact and ideal for DIY speakers.
- Solid output despite its small size.

[Notes]
- Recommended for those who understand DIY applications.

Sound output confirmed, no issues with normal use.