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
MK1 Acrylic Remote Ver. Tony DIY Arc Reactor Lamp Kit Remote Control Illuminant LED Flash Light Heart Set
$70.86Engraving Parts & AccessoriesAdd to cartThe diaplay box and the bracket inchPROOF THAT TONY STARK HAS A HEARTinch is sold separately, please click that:ID:1429112The following chart shows different versions of our ARC reactor DIY model lamp, you can choose your favorite ones.ARC Reactor DIY Model Lamp Version:Please refer toMK1 Acrylic Frame Version:ID:1420733MK1 Aluminum Alloy Frame Version:ID:1434480MK2 Acrylic Frame Version:ID:1434467MK2 Stainless …
5pcs DC Motor Driver Board 2 Way DRV8833 Motor Drive Module DC 3-10V
$10.17Driver ModuleAdd to cartParametersSize:18.5 x 16 mmInput voltage:3-10VSingle H bridge output current:1.5A, can drive 2 dc deceleration motors.Built-in overcurrent protection, short circuit protection, undervoltage latching and overheating protection. Sleep mode with low power consumption.Purpose:drive dc motor and 4-wire stepping motor up to 1.5A.InstructionsULT low level is in sleep mode (need to disconnect J2 short welding spot behind the …
5pcs DC Motor Driver Board 2 Way DRV8833 Motor Drive Module DC 3-10VRead More
M5Stack ESP32 Open Source Faces Pocket Computer with Keyboard/Gameboy/Calculator Development Board
$177.66Smart ModuleAdd to cartIntroductionFACES Kit is a feast of functional panels, contains the most commonly used panels and keyboards with MEGA328 processor inside, communication protocol through IIC(0x08) as slave mode. With these 3 different panels, it will be very easy to support keyboard interaction with your M5Core.If you up for some classic video game, PyGamer panel plus M5Core …
10pcs 1S 3.7V 4A li-ion BMS PCM 18650 Battery Protection Board PCB for 18650 lithium Battery Double MOS
$13.12Battery Protection ModuleAdd to cartSpecificationsOvercharge detection voltage:4.25 ± 0.05VOvercharge release voltage:4.23 ± 0.05VOver discharge detection voltage:2.45 ± 0.1VUpper limit continuous current:4AOvercurrent detection current:5ACharging voltage:4.2VProduct Size:35 * 4 * 2.2MMIC components:DW01 + 8205A * 2 The main function:Overcharge protection, over discharge protection, short circuit protection, overcurrent protection.Wiring InstructionsB +:Connected to the battery positive.B-:Connected battery negative.P +:For the battery pack output …
CBB61 3Pcs 1.2UF Starting Capacitance 450V AC Fan Capacitor CBB Motor Run Capacitor
$4.04Module ComponentsAdd to cartFeatures1.Use polypropylene film with excellent electrical properties as the medium, and vaporize the metallized layer as the electrode under high vacuum conditions; 2.Use High-quality epoxy resin potting material is filled and sealed; the product has stable capacity, low loss, high pressure resistance, and good self-healing.3.Application:air conditioners, refrigerators, washing machines, electric fans, ovens, etc.SpecificationModel:CBB61Shell Material:ABSLine length:10cmShell …
CBB61 3Pcs 1.2UF Starting Capacitance 450V AC Fan Capacitor CBB Motor Run CapacitorRead More
Solar Charge Controller 15A LCD Display Controller Solar Controller for PWM Solar Power Panel Water Pump
$76.94Solar ControllersAdd to cart15A Controller For PWM Solar Panel Water PumpSpecificationMaterial:Acrylonitrile Butadiene Styrene (ABS)Color:BlackSize:14x9x3cmSystem voltage:12N/24V adaptiveUSB output:5V/2ACharging current:15ACharging voltage:13.7VRelease point cutoff voltage:10.7VWorking temperature:-20~+60°CFeaturesLCD displayPWM battery chargingAll necessary protections equippedAdjustable cotrolling parameter of the systemBuild-in industrial micro controllerBuild-in short-circuit protection, open-circuit protection, reverse protection,Over-load protection.Dual mosfet reverse current protection,low heat production.Application:Solar ControllerPackage include1 x solar controller
3pcs 5-30V 10A Wide Voltage Trigger Delay Relay Module Timer Module 2 Trigger Modes
$12.31Relay ModuleAdd to cartDescriptionTime can be adjusted by a potentiometer to meet the use of most of your occasions.With Micro USB 5.0V power supply input, it is very convenient to use.5-30V ultra wide power supply voltage.Two trigger modes:external trigger and onboard buttons trigger.It has a relay suction indicator.Strong anti-interference ability, all kinds of interference under the relay will …
3pcs 5-30V 10A Wide Voltage Trigger Delay Relay Module Timer Module 2 Trigger ModesRead More
Reviews
There are no reviews yet.