50W*2 TPA116D2 2-channel Stereo bluetooth 5.0 Audio Power Amplifier Board Module Aluminum Alloy Shell USB AUX ZK-502D Hi-Fi Wireless Amplifier
$37.17
Color Silver / Color Black /
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Size Conversion
Inches
Centimeters
Please according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.
Feature
Product name:50w * 2 Bluetooth 5.0 audio power amplifier module
Product model:ZK-502D
Bluetooth version:5.0 (unobstructed, 15 meters)
Signal to noise ratio:> 95dB
Input method:USB + AUX + BLUETOOTH
Number of channels:left and right dual channels (stereo)
Amplifier chip:TPA116D2 (with AM interference suppression function)
Adaptable power supply:DC9-24V / 2A or more (the higher the voltage, the greater the output power)
Adapter speaker:15 ~ 100W, 4 ~ 8┯
Output power:15w * 2 @ 12V, 8┯ / 30w * 2 @ 12V, 4┯ / 20w * 2 @ 19V, 8┯ / 40W * 2 @ 19V, 4┯ / 30w * 2 @ 24v, 8┯ / 50w * 2 @ 24v, 4┯
Protection mechanism:overvoltage, undervoltage, overheat, DC detection, short circuit protection
Product size:80mm * 77mm * 22mm
Product weight:140g (including packaging)
Prompt
Only when the audio input is sufficient and the power supply voltage / current is sufficient, will there be enough output power!
The higher the power supply voltage, the greater the output power, 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!
Package includes
1 x Audio Power Amplifier Board kit (The power adapter is not includes)
Question & Answer
Q1. How to choose the power supply
A:The power supply of the board is very important. The higher the voltage, the higher the current, and the greater the output power. If you only have 12V 1A, you can use a 3-4 inch speaker. If you are above 19V 5A, there is no problem with 8-10 inch speaker, the power supply must be highly valued. If the voltage is too low, the sound will be easily distorted after the sound is amplified. If the current is too small, the speaker will pull down the voltage, and will not work properly or the sound quality will deteriorate.
It is recommended to use 18V/19V/24V power supply, the current is more than 3A. If you only have a 9V/12V or 1A, 2A power supply, it can also be used but the power is small. Note that the maximum volume during use may be distorted and affect the sound quality.
Q2. How to choose speakers
A:The commonly used speakers are generally 8 ohms, and the positive and negative polarities can be distinguished. The effect is the same. 4 ohm speakers can also be used. If your speaker power is small, it may be usable between 10W-30W. The supply voltage is lower to prevent the speaker from being burned after the sound is amplified. For example, choose a power supply below 15V. If you are a 50W-100W speaker, you don’t need to worry about the problem of speaker burnout, you can choose a 12-24V power supply, the higher the voltage, the greater the output sound or power. Speaker power should not exceed 100W, otherwise it will affect the sound quality.
Q3. How to select the audio input mode
A:This audio power amplifier module follows the principle of hardware connection priority. USB connection is successful in USB mode, AUX plug-in is in AUX mode. If USB is not connected and AUX is not plugged in, it is Bluetooth mode, Bluetooth mode supports automatic connection back. There is a mode prompt tone when the mode is switched. When selecting the USB audio input mode, it should be noted that USB can be directly connected to devices such as computers with USB audio output, without installing a driver. USB input is lossless input, good sound quality, no interference, no noise.
Q4. The sound is okay. When the sound becomes louder, does the sound appear muddy
A:The sound is distorted. Please change the power supply of the adapter with higher voltage level.
Q5. It’s okay when the sound is small, but when the sound becomes louder, the sound freezes
A:There may be two reasons:1. Insufficient input power, intermittent power-off protection of the power supply itself, please replace with a larger power supply; 2. Too much power, the power amplifier board heats up seriously, and thermal protection occurs. Should reduce the use of power or strengthen heat dissipation.
Weight | 0.15 kg |
---|
Customers Also Viewed
3Pcs MPR121-Breakout-v12 Proximity Capacitive Touch Sensor Controller Keyboard Development Board
$16.16Motherboard & Development BoardAdd to cartDescriptionThis is a breakout board for Freescale’s MPR121QR2. The MPR121 is a capacitive touch sensor controller driven by an I2C interface.The chip can control up to twelve individual electrodes, as well as a simulated thirteenth electrode. The MPR121 also features eight LED driving pins. When these pins are not configured as electrodes, they may be …
220V 100A Class A Power Amplifier Soft Start Delay Temperature Protection Board with Gas Discharge Tube
$24.95Relay ModuleAdd to cartFeatures100% Brand new and high quality.FunctionThe board is equipped with a gas discharge tube. The gas discharge tube is composed of a pair of cold cathode plates which are separated from each other and enclosed in a ceramic tube filled with a certain inert gas (Ar).The gas discharge tube is turned off under normal operating …
Excellway Terminals 40 Pcs 2p 3p 4p 5pin Right angle JST-XH Male Female Lipo Balance Connector
$36.44ConnectorsAdd to cartSpecificaiton Brand:Excellway Pitch:2.54mm Current Rating:1A AC, DC Voltage Rating:125V AC, DC Temperature Range:-25 deg C ~ +85 deg C Insulation Resistance:100M Omega Min. Wire Range:AWG 24~ 32 Insulation O.D.:1.00mm ( Max.) Withstanding Voltage:500V AC/minute Features These work great with all your typical and breadboard style pin connectors and sockets. This kit comes with the most …
HBV-1466FF Fixed Focus 5MP OV5640 FPC Camera Module USB 5 Million Pixels IP Camera Module
$42.85Other Module BoardAdd to cartSpecificationsModel No.:HBVCAM-1466FFModel Size:68.2mm ≠ 26mm ≠ 6mm÷0.2MMTemperature (Operation):-30C to 70CTemperature (Stable Image):0C to 50CAssembly technique:SMT (ROSH)Focus:FixedObject distance:30CM-infinitResolution:800LW/PH (Center)Interface:USB 2.0Power:USB bus powerMaximum Power consumption:940 mWPackage:Anti-electrostatic trayOperating system request:Win XP/win 7,8 / vista /android 4.0/ mac /Linuxwith uvcCertifications:FCC and CEActive Array Size:2592*1944Sensor:OV5640 (1/4” )Sensitivity:600mv /(lux-sec)Pixel Size:1.4┢m x1.4┢mMaximum Image Transfer Rate:MJPEG 1024×768 30FPS / YUY2 160×120 30FPSMJPEG 1280×720 …
HBV-1466FF Fixed Focus 5MP OV5640 FPC Camera Module USB 5 Million Pixels IP Camera ModuleRead More
10pcs 40x40mm Small Fan 4010S Computer Chassis CPU Fan 2 Line with Plug
$19.84Electronic Accessories & SuppliesAdd to cartDescriptionAppearance size:40mm x 40mm x 10mmSpeed reference:4000 ± 10% RPMNoise Reference:18DBAir volume reference:18.17-25.97CFMRated voltage:12VRated current:0.10APackage included10 x Fan
Reviews
There are no reviews yet.