AIYIMA 2.0 Digital Amplifier Speaker Protection Board Home Theater Class D Power Amplifier Audio Sound Speaker Protective Board
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£6.89£10.44
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Specifications
- Brand Name
- Aiyima
- High-concerned chemical
- None
- Maximum Power Per Channel
- Above 200W
- Origin
- Mainland China
- Package
- Yes
- Channels
- 2 (2.0)
- Model Number
- Speaker Protection Board
- Power
- 300W
Product Description
Description:
2.0 Digital power amplifier speaker protection board parameters:
Input voltage: DC12V-16V/AC12-16V
Power: 300Wx2
Size: 80*50MM
With delay and DC protection function (default 1.8V start control, DC sensitivity can be adjusted)
This common power supply DC protection board uses optocouplers. Because optocouplers are isolated between input and output,
Electrical signal transmission has the characteristics of unidirectionality, etc., so it has good electrical insulation and anti-interference ability.
In addition, because the input end of the optocoupler is a current-type low-impedance component, it has a strong common-mode rejection capability, and achieves the separation of power and audio sources without affecting the audio source!
Operation note:
1.Power on (red) indicator light is on, working indicator light is on normally, the relay is closed, if there is an impact protection board automatically adjusts the pull-in time (the relay is closed after the current passes)!
2.The power supply can be the same as the power amplifier. The negative pole of the dual-channel audio source is independent of each line, which is suitable for non-common ground wire and BTL circuit power amplifiers.
3.The wiring terminal is 7.62 pitch, 1/2W metal film exceeds the standard, and the internal resistance is reduced. It is designed for high current!
Note:
There is no delay when the protection board is turned on and off within 15 seconds (the first power on-after turning off, there will be a delay after 15 seconds)!
Packing List :
1Pcs
Pros & Cons
Pros
- 300W x2 power handling for robust home theater
- Built-in delay and adjustable DC protection
- Compact 80x50mm with optocoupler isolation
- Dual input DC/AC 12-16V flexible
Cons
- No overheat protection specified
- Sensitivity adjustment may need calibration
- Max power above 200W but cooling required
- 2.0 channels only, no surround
Common Questions
What material and power rating for this AIYIMA speaker protection board?
2.0 channel Class D amp board, up to 300W x2, DC12-16V input.
What size is this digital amplifier protective board?
Compact 80x50mm size for home theater integration.
Compatibility with audio systems for this protection board?
For 2.0 digital power amps, speakers; delay/DC protection, optocoupler isolated.
How to use this 300W speaker protection module?
Connect to amp power supply; auto delay start (1.8V), adjustable DC sensitivity.
Shipping details for this Mainland China amp board?
Origin Mainland China with package; fast shipping for audio parts.
Product information last updated on November 30, 2025