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Product Description
Description:
ZK-MT21 2x50W+100W 2.1 Channel Subwoofer Digital Power Amplifier Board AUX 12V 24V Audio Stereo Bluetooth-compatible 5.0 Bass Amp for Home Theater Speaker
Feature:
The Bluetooth-compatible audio power amplifier module has 2.1 channels and the maximum output power is 2X50W+100W.
It has two audio input modes, AUX and Bluetooth-compatible, and a two-in-one power amplifier board. Bluetooth-compatible5.0, higher transmission efficiency, longer transmission distance
It has short-circuit protection, over-current, over-heating, and anti-reverse protection to prevent total failure. When an overload occurs, the device reports the fault condition to the processor to protect itself from damage
It adopts copper DC connectors and barrier terminals. It can withstand high current without heating or damaging wires.
Classic appearance multi-function main knob. The main knob adopts a rotary encoder that is only used in high-end power amplifiers, which realizes 360-degree stepless tuning and a smooth one-key start and stop. The operation is simple and convenient by long pressing the switch.
With bass, treble, subwoofer frequency and volume control, you can easily adjust the volume and enjoy the music tone you want. It is widely used in shopping malls, home theaters, speakers, etc.

Specification:
Product name: 2.1 channel Bluetooth-compatible audio power amplifier module
Product model: ZK-MT21
Bluetooth-compatible version: 5.0 (unobstructed, 15 meters)
Input sensitivity: 500mV
Input method: AUX+ Bluetooth-compatible
Number of channels: 2.1 channels
Power amplifier chip: Domestic power amplifier chip
Adapter power supply: above DC12-24V/5A (24V battery pack is not allowed)
Adapted speakers: 20-100W, 4-8Q
Output power: left and right channels <50W; subwoofer <100W
Protection mechanism: Anti-reverse connection, overheating, overcurrent, short circuit protection
Product size: 93mm*90mm*22mm
Product weight: about 130g

Notice:
The product can be connected with an external antenna, but does not include an antenna and an antenna base, please purchase it separately.
Tip: Only when the audio input is enough and the power supply voltage/current is enough, there will be enough output power!!!
The higher the power supply voltage, the greater the output power, and the smaller the speaker impedance, the greater the output power!!! Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifier!!!

Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.
Included:
1 X Power Amplifier Board
1 X Accessory Pack
pictures
payment
  1. We accept PayPal only.

  2. All major credit cards are accepted through secure payment processor PayPal.

  3. Payment must be received within 7 business days of auction closing.

  4. If you have bought multiple items from me, you can send me one payment for all the items instead of paying for them individually. When you click the Pay Now button, eBay will automatically determine if there are other items you have won or purchased from me and will combine them for your review.

  5. NOTE: Import duties, taxes and chargers are not included in the item price or shipping charges. These charges are the buyer's responsibility.
    Please check with your country's customs office to determine what these additional costs will be prior to bidding buying.

Warranty
  1. 12 months Warranty. Buy with confidence!

  2. If you are not satisfied when you receive your item, please return it within 14 days for a replacement or money back. Please contact me before you return it.

  3. If item is defective in 3 months, We will send you a replacement without extra charger, or offer refund after we receive the defective item.

  4. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item. But you have to pay the extra shipping fee.

policies
  1. We are not responsible for any custom duty or import tax.

  2. We will leave POSITIVE FEEDBACK after receiving the payment. Please contact us if you are not satisfied with the item after receive it.

  3. All messages will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your message and we will reply to you as soon as possible.

  4. Serious Buyer Only! Please place bid only if you agree with all the terms.

  5. If you have any problems or concerns whatever with your order or products, please message us and give us a chance to assist you before you leave any feedback.
    We believe we can produce a positive outcome to any situation and will work hard to earn your praise.
    If you were pleased with this transaction, Please give us 5 star rating, thanks!

Contact Us
  1. Our office hours are 9:00 a.m to 6:00 p.m (GMT +8) of Monday to Saturday.
    And our Office is closed on Sunday and public holidays.
    We apologize for the late reply during the holidays.

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