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
75pcs SN74HC595N 74HC595 74HC595N HC595 DIP-16 8 Bit Shift Register IC
$16.07Electronic Accessories & SuppliesAdd to cartSpecification74HC 595N ICBits:8Pin:16Logic family:HCLogical function:shift registerOutput type:3-StatePropagation delay time:285nsOperating supply voltage (Typ):2.5V / 3.3V / 5VOperating temperature:-55°C ~ 125°COperating supply voltage (Min):2VOperating supply voltage (Max):6VOperating temperature classification:MilitaryMounting:HoleIntegrated circuit with small size and light weight, high reliability for improving the reliability of equipment.Package included75 x 74HC595N 8 bit shift register IC
ZFX-W305 5Pcs AC-DC Power Supply Module input AC 100-240V Output 24V 1.5A 36W Converter Board
$32.79Power Supply ModuleAdd to cartSpecificationName:AC-DC Power Supply ModuleBrand:ZFXModel:ZFX-W305Power:36WInput voltage range:AC 100-240VOutput voltage:DC 24V/1.5AMainboard power supply:220V to 24VSize:42*61*31mmInstallation hole:43*37mmScope of application:used for power supply of controller main boardPackage included5 x Power Supply Module
4Pcs 5mm Reusable Clear Bent Glass Drinking Straws Water Juice Straws with Cleaning Brush
$22.26Bottles & JarsAdd to cartSpecificationColor:ClearMaterial:High Borosilicate GlassTube Mouth Shape:RoundTemperature Resistance:-20~450℃Total Length:21.5cm / 8.46inchInner Diameter:0.5cmFeatures– Non-toxic environmentally friendly green borosilicate heat-resistant material, safe to use, not stain, will not fade.– Widely used, can drink water, milk, juice, coffee, coke, soda, etc.– Could put it into the microwave for sterilization.Package Included4 x Glass Drinking Straws1 x Cleaning Brush
Smart Electric Garage Door WIFI Timing Opener Switch APP Remote Control Support Alexa Google Home IFTTT
$70.86SwitchesAdd to cartDescriptionThis product is a WiFi smart switch supports remotely control your garage door opener and monitor the door status at any time and anywhere in the world via APP on your Android/iOS mobile devices. It features voice control for Amazon Alexa and for Google Home IFTTT, device sharing, and you can also set timers to …
1200W Computer Power Supply Module PC PSU 24Pin SATA 6Pin 4Pin Quiet LED Fan 80 Plus
$176.16Switching Power SupplyAdd to cart1200W Power Supply 140mm LED Fan 24 Pin PCI SATA ATX 12V Computer Power SupplyFeaturesPeak power 1200W, suitable for high-end computer configuration in the market.In accordance with Intel ATX12V specification design, support Intel, AMD full range of dual-core platform, support VISTA, Win7 operating system C.Using 14cm hydraulic bearing LED fan, Green LED light fan, efficient …
1200W Computer Power Supply Module PC PSU 24Pin SATA 6Pin 4Pin Quiet LED Fan 80 PlusRead More
RX24 100W 4R 4RJ Metal Aluminum Case High Power Resistor Golden Metal Shell Case Heatsink Resistance Resistor
$6.55Electronic Accessories & SuppliesAdd to cartFeaturesIt has the characteristics of small size, high power and high precision.It is sealed by professional technology.It has the advantages of stronger heat resistance, higher temperature resistance, moisture resistance, high anti-vibration and explosion protection.Scope of application:Testing power supply, frequency converter, automobile LED lamp, automation equipment, audio, frequency divider, servo industry and other harsh industrial control …
Reviews
There are no reviews yet.