300W Digital Amplifier Speaker Protection Board 2.1 Channel Relay Speaker Protection Module Boot Delay DC Protect

Product description:

With delay and DC protection (default 3.2-3.5V start control, DC sensitivity can be adjusted) Protection board parameters: Voltage input: DC12-16V or AC12-16V : independent three channels Can withstand power: power within 300W*3 Size: 97*51*17MM Suitable: The power supply can be the same as that of the power amplifier. Each line of the negative pole of the three-channel audio source is independent. Note: Suitable for 2.1 three-channel cla D, cla A, discrete power amplifiers. Features: 1. This common power DC protection board uses an optocoupler. Since the optocoupler has input and output isolation, 2. Electrical signal transmiion has the characteristics of unidirectionality, so it has good electrical insulation and anti-interference ability. 3. Since the input end of the optocoupler belongs to the low-resistance type of current type operation, it has strong common mode suppreion capability. 4. The power and sound source are separated, and the sound source will not be affected! Note: 1. The protection board uses 1.6 thick 1A copper surface, double-sided tin plating proce, the input voltage is  DC12V-16V or AC 12-16V. 2. Turn on the power (red) indicator light, the work indicator light is normal, the relay is closed, if the impact protection board automatically adjusts the suction time (waiting for the current to pa through the relay)! 3. The power supply can be the same as the power amplifier. Each of the three channels of the audio source is independent. It is suitable for non-common ground andL circuit amplifiers. 4. The terminal block is 7.62 pitch, and the 1/2W metal film exceeds the standard. The internal resistance is reduced for high current design! 5. The j-oint v-enture S-ongle relay as the core component is not afraid of contact sparking and oxidation, and lole transmiion of sound! 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 when it is turned on)! Package included: 1Pcs

About shipping
Shipping and Packaging All itwill be double checked and well packed before sending.Itwill be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties ores. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.