Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module - عيادات أبوميزر لطب الأسنان

Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module
Upgraded HIFI 500W Mono channel Digital Audio Power Amplifier Board Amp Module


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eBay Visit store Items for sale About us Product Details Product Features: 1.upgraded switch without impact sound; 2. delayed opening, instantaneous closing, effectively solve the impact of the switching sound, the 3. Equipped with relay power supply, can be connected to external 110V/220V AC 4. Small size, light weight, high efficiency, high power 5. With output DC bias protection that is horn protection. Product parameters: Supply voltage: dual DC power supply ± 45 ~ ± 70V (recommended +-65V power supply can be) Rated output power: 500W (± 65V power supply 4Ω load, distortion 1%) Efficiency: >=90 Signal-to-noise ratio: 90dB Total harmonic distortion: 380W (±70 power supply 4 ohm speakers, distortion <0.1%) 280W (±70 power supply 8 ohm speakers, distortion <0.1%) Frequency Response Range: 20Hz-20KHz Speaker: 4-8Ω Voltage amplification: 50 times Input sensitivity 1V (RMS) Output DC bias protection, i.e., speaker protection: yes Amplifier board size: LxWxH=105x43x28mm Note: Function board need to dual DC power supply, single power supply can not Work, power supply voltage ±45V ~ ± 70V, too low does not work, too high easy to burn the board. The maximum effective power of the board 500W (at ± 65V 4 ohm load input 1V RMS); According to the power formula P = U * U / R = voltage * voltage / load can be seen, the power is determined by the voltage and load, the higher the voltage, the smaller the load, the greater the power, the board for the voltage range means that the board can work properly in this range of voltages, not all voltages and loads power are labeled so high-power output, for example, 12V powered 4Ω load, the power of up to 15W, 8Ω when the power of up to 7.5W; 24V power supply 4Ω, power maximum 50W, 8Ω when the maximum 25W; at any time, the power supply power must be greater than the power of the amplifier, otherwise the loud volume can not be brought, the power will be reduced and cut off the sound, and can not reach the corresponding power output. Product List 1x Board Payment Method Shipping Policy Returns & Refund Policy Feedback Payment Method EBAY Managed Payment. But we only Accept your Ebay Address, please Make sure it's 100% right. Payment must be received in 5 business days of auction closing. Please leave note for your special request (e.g. Colors or Size) in PayPal when you pay the order. Any special request cannot be accepted after 24 hours of payment, because most of orders will be processed instantly and same day dispatched. Shipping Policy 1. We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand. 2. Orders will be processed instantly and dispatched within 1-3 business days except hoilday, so we do NOT accept any email/message note after you place orders. 3. All package need to wait 30 days,Please take care it.Less than 30 days,we can't take a refund. Returns & Refund Policy All package need to wait 30 days(US only need 7-10 days),Please take care it.Less than 30 days,we can't take a refund. If the item is defect when you receive it or you are not satisfied with it, please return it within 14 days for a replacement or money back. But the items must be back in factory condition. Please keep in touch with us and double check the return address before you return it. If is item is defective in 12 months, you can return it to us. We will send you a new replacement after receiving the defective item. Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you keep in touch with us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.

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