2. The use of high-power digital amplifier special inductor, high current, low magnetic loss, small heat, the use of oxygen-free copper wire to improve sound quality; magnetic shielding mechanism to resist electromagnetic interference.
3.5 TI original NE5532 op-amps, to maintain the purity of the signal and sound quality of the high-fidelity, audiophile gold-plated DIP8 op-amp sockets, low transmission resistance, good transmission characteristics, free to replace the op-amp.
4. Subwoofer signal output expansion port, compatible with ZK-3002, karaoke board expansion port, support the addition of ZK-AMP.
5.QCC3034 high-pass module, support the transmission of coding SBC, AAC, APTX, APTX-LL, APTX-HD.
Product Name：2.1 channel high pass bluetooth amplifier board 200W+200W+400W
Product Model: ZK-APTX2
Adaptable power supply:
Operating voltage range 15-40VDC, recommended voltage 32V-36V, current 10A or 10A or more DC power supply. Note that you can not directly use the ring bull transformer AC power, must be rectified and filtered and tested DC voltage within 40V, before wiring.
Maximum power:
Left or right channel - 200W@40V, 4Ω; 300@40V, 3Ω.
Subwoofer - 425W@40V, 2Ω; 200W@40V, 4Ω In short, the higher the voltage, the lower the resistance, the higher the output power.
Applicable speakers: Left and right channel, support 3-8 ohm, within 200W; subwoofer support 2-8 ohm, within 400W.
Bluetooth chip: QCC3034, transmission distance 15 meters.
Input mode: Bluetooth+AUX ,Bluetooth priority, Bluetooth needs to be disconnected when using audio cable input.
Number of channels: 2.1, left channel + right channel + subwoofer
Amplifier chip: two TI original TPA3223
Protection mechanism: input undervoltage, input anti-reverse connection, overheating, overcurrent, short circuit protection.
Product size: 152x120x37mm
1 x Amplifier board
1 x Accessory kit
1.The boards all come with their own on-board antennas, with a normal distance of 10-15 meters.
1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner.
4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication with us. Ple
1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner.
4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication
When you satisfied with our product and services please leave us positive feedback.
If a problem occurs, contact us immediately with any email request. Just contact us using the " Ask the seller a question" link on eBay.We will maill bakc within 24hours