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This is a kind of quality audio pwer amp module, which is made of quality electronic components, with accuracy process, which ensures fine durability and long service time. AUX+BT audio input, subwoofer+left and right channels output. Adopts quality chip, unfiltered output, with standard sound quality. Classic two-tone tuning, low distortion, with wide adjustment ranges. You can have a try.
Features:Adopts quality electronic components, with accuracy process, which ensures fine durability and long service time.Fine contact performance, that ensure stable working.AUX+BT audio input, subwoofer+left and right channels output.Adopts quality chip, unfiltered output, with standard sound quality.Built-in 18*20*10mm cooling fin, with fine heat dissipation effect.Classic two-tone tuning, low distortion, with wide adjustment ranges.Three rotation buttons design, you can adjust the treble, bass and volumes freely according to your demands.Multiple protections design, overtemperature, overcurrent and short circuit are protected.
Specifications:Name: Power Amplifier ModuleMaterial: printed circuit boardModel: ZK-502MTBT: 5.0Signal noise ratio: ＞90dBAudio input: AUX+BTChannel: left+right channel (stereo)Power: DC9-24V, above 3ARL speaker: 4-8Ω; 15-100WPower voltage:12 V: 8Ω/12W+12W; 4Ω/20W+20W15V: 8Ω/18W+18W; 4Ω/30W+30W19V: 8Ω/30W+30W; 4Ω/40W+40W24V: 8Ω/40W+40W; 4Ω/50W+50WItem size: 89 * 60 * 21mm / 3.50 * 2.36 * 0.83inPackage size: 95 * 65 * 30mm / 3.74 * 2.56* 1.18inPackage weight: 111g / 3.92ounce
Packing List:1 * Power Amplifier Module
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Zk-Tb21 Tpa3116D2 Bluetooth 5.0 Subwoofer Amplifier Board 50Wx2+100W 2.1 Channel Power Audio Stereo Bass Amp
Specifications: Model: ZK-TB21 Material: electronic components Color: Black Bluetooth Version: 5.0(no shielding, 10m) Input sensitivity: 500mV Audio Input: AUX+Bluetooth Channel: 2.1 Chip: TPA3116D2(with AM anti-interference function) Power: DC12-24V/5A Adapter speaker: 20-100W, 4-8Ω Output power: Max.50W(R and L channel), Max.100W(subwoofer) Protection Mechanism: overvoltage ,undervoltage,overhearing,DC detection,short circuit protection Size: 118x100x22mm/4.6×3.9×0.8inch Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Included: 1 x ZK-TB21 Amplifier Board Q&A: 1. How to choose the power supply? The power supply with the board is very key, the selected power supply ripple must be small, ripple large power supply will lead to power amplifier bottom noise, there is a current sound.The higher the voltage, the higher the current, and the higher the power output. If you only have 12V 1A, you can have 3-4 inch speakers.If you are above 19V 5A, no problem with 8-10 inches, power must be highly valued.If the voltage is too low and the sound is amplified, it will easily cause sound distortion. If the current is too low and the horn cannot be brought up, the voltage will be pulled down, which will lead to abnormal operation or poor sound quality. It is recommended to use 18V19V24V power supply with current above 5A.If you only have 9V12V or 1A 2A power supply, you can also use it but with low power. When using it, choose the volume close to the maximum, which may cause distortion and affect the sound quality. 2. How to select speakers? About the speaker type: commonly used speakers are generally 4-8 ohms, can be used.Speakers in left and right channels need to be connected to full frequency or medium and high frequency speakers with power between 20W and 100W.Subwoofer speakers cannot be connected to ordinary speakers. Speakers with subwoofer speakers should be connected, with power between 20-100W.The subwoofer horn must have a dive frequency of at least 50Hz. If your speaker power is small, such as between 20W-50W can also be used, the power supply voltage needs to be small, to prevent the loudspeaker burnt after loud, such as choose power below 15V.If you are a 50W-100W speaker, you don't have to worry about burning out the horn. You can choose a 12-24V power supply. The higher the voltage you choose, the more sound or power you can output.Speaker power is not easy to exceed 100W, otherwise it will affect the sound quality. 3. Audio input mode There are two audio input modes for this audio amplifier module: one is Bluetooth input and the other is AUX input. Bluetooth mode is preferred.Bluetooth can be connected in either mode.As long as the Bluetooth connection is successful, it is bluetooth mode, and bluetooth mode supports automatic back up.AUX insert is AUX mode when Bluetooth is disconnected.It should be that the bluetooth connection of this module is disconnected when using AUX mode. 4. How to adjust the main volume? The MAIN – VOLUME knob is used to adjust the MAIN VOLUME.The right main volume goes up and the left main volume goes down.The master volume affects both the left and right channels and the subwoofer volume. 5. How to adjust the height and bass of the left and right channels? R&L CHANNEL – BASS knob is for BASS, right-handed BASS enhancement, and left-handed BASS attenuation.When the knob is in the right-most position, it does not enhance or attenuate the bass. The R&L CHANNEL – TREBLE knob is used to control the TREBLE, with right-handed TREBLE enhancement and left-handed TREBLE attenuation.When the knob is in the middle, it does not enhance or attenuate the treble. Note when adjusting high and low sounds: when the TREBLE or BASS sounds are right-rotated to near maximum, if the sound distortion is distorted, the gain of the TREBLE or BASS sounds is too large. It is necessary to turn the TREBLE or BASS knob to the left to lower the gain or turn the MAIN-VOLUME knob on the right to the left to reduce the total VOLUME. 6. How to adjust the subwoofer? SUBWOOFER – VOLUME controls the VOLUME of the SUBWOOFER.The right-handed volume goes up and the left-handed volume goes down. The SUBWOOFER – FREQ knob controls the cutoff frequency of the SUBWOOFER.The right frequency increases and the left frequency decreases.The frequency adjustment range is 20HZ-200Hz. 7.What factors are associated with sound quality? The quality of sound is not only related to the power amplifier module, but also to the power supply, sound source and the whole sound system.Basically every link of the sound system will affect the sound quality, among which the main link is the audio transmission line, audio power supply, tone circuit, amplifier circuit, speakers and the surrounding environment.The sound quality is best when the sound source, power supply, amplifier module and the speaker are matched.
Giá sản phẩm trên Tiki đã bao gồm thuế theo luật hiện hành. Bên cạnh đó, tuỳ vào loại sản phẩm, hình thức và địa chỉ giao hàng mà có thể phát sinh thêm chi phí khác như phí vận chuyển, phụ phí hàng cồng kềnh, thuế nhập khẩu (đối với đơn hàng giao từ nước ngoài có giá trị trên 1 triệu đồng)…..
Xh-A232 30W+30W Dual Channel Digital Stereo Audio Power Amplifier Board
Thương hiệu OEM Xuất xứ thương hiệu China Xuất xứ china
Package Includes:
1 Piece Digital Power Audio Amplifier Board
Note:
Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.
Giá sản phẩm trên Tiki đã bao gồm thuế theo luật hiện hành. Bên cạnh đó, tuỳ vào loại sản phẩm, hình thức và địa chỉ giao hàng mà có thể phát sinh thêm chi phí khác như phí vận chuyển, phụ phí hàng cồng kềnh, thuế nhập khẩu (đối với đơn hàng giao từ nước ngoài có giá trị trên 1 triệu đồng)…..
Xh-A901 Ne5532 Tone Board Preamp Pre-Amp With Treble Bass Volume Adjustment Pre-Amplifier Tone Controller For Amplifier Board
Description:
Item type: Tone Board
Product model: XH-A901 Input voltage: DC12-24V Number of channels: two channels Size: 96*39*16MM Installation aperture: 3MM Installation hole distance: 89.3*32.3MM Chip:Two NE5532
Packing list:
1pcs XH-A901 NE5532 Tone Board 1pcs 3P Audio cable
Notes:
The colors deviation might differ due to different monitor settings, please kindly understand.
Giá sản phẩm trên Tiki đã bao gồm thuế theo luật hiện hành. Bên cạnh đó, tuỳ vào loại sản phẩm, hình thức và địa chỉ giao hàng mà có thể phát sinh thêm chi phí khác như phí vận chuyển, phụ phí hàng cồng kềnh, thuế nhập khẩu (đối với đơn hàng giao từ nước ngoài có giá trị trên 1 triệu đồng)…..
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