Power amplifier

Description: Model:PA8403 Power:Low Power Excellent noise suppression, in the absence of circumstances connected to input audio ear close to the speaker can not hear any noise, two-channel stereo, 5V power supply can output 3W 3W power, can directly drive 4Ω, 8Ω small speakers, the output power large, full of energy, good sound quality. The unique non-LC filter Class-D digital power board can be directly used computer USB power supply. Double panel wiring, wiring properly resolve the ground potential caused by balance and inter-channel crosstalk, ultra-miniature design, can easily be placed in a variety of digital products within a small space, high amplification efficiency. All using the whole plate welding machine, welding quality comparable non-manual soldering iron! 100% brand new and high quality Operating voltage: 2.5V-5.5V Maximum output: 3Wx2 (5V 4 ohms) Efficiency can reach above 90%, you can use the computer USB port 5V power supply The board compact with a switch potentiometer, you can adjust the volume and control of arbitrary power switch. Working voltage should not exceed 5.5V, the power of positive and negative can not be wrong. Otherwise, there is the possibility of damage chip Board size: 2.9cmx2cm/1.14x0.78inch(Dimensions without potentiometer handle protruding parts) Quantity:1set Note: Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(No Retail Package): 1Pc x PAM8403 Digital Amplifier Board With Switch Potentiometer 1pc x

welcome to easyturn.vn 🌸ĐẦY ĐỦ 🌸 TPA3118 PBTL Mono Digital Amplifier Board 1X60W 8-24V POWER AMP Replace TPA3110 Features: Sound quality is very good by using this module. Mono digital audio power amplifier chip. High output and low power consumption. Applicable speaker impedance: 4-8 ohm(8 ohm is the best). Specifications: Working Voltage: DC 8-24V Power Output: 60W Applicable Speaker Impedance: 4-8 ohm PCB Board Size: 45 * 35mm / 1.77 * 1.4in Weight: 12g / 0.43oz Package List: 1 * Digital Amplifier #TPA3118 #POWER #🌸ĐẦY #Amplifier #TPA3110 #1X60W #Replace #PBTL #🌸 #8-24V #Mono #Board #ĐỦ #Digital #AMP #TPA3118-PBTL #8-24V-POWER #Digital-Ampli

2X15W Digital Audio Stereo Amplifier Module Board TPA3110 12V Class D Power AMP Board Feature: 1. The 2.0 channel 2*15W high power mini digital power amplifier board adopts TPA3110 power amplifier chip. 2. The chip does not need heat sink, but also has the function of overcurrent and overheating. 3. This power amplifier board is designed by the improvement of the official standard circuit. 4. It increases the power supply protection against reverse protection and 2 new design low pass filtering, and the bass thrust is stronger. 5. This product has no interference and no need for shielding treatment. Specification: Power amplifier chip: TPA3110 Output power: 15W*2 Working voltage: DC DC12V-24V Working current: static: 8MA; maximum: 3A Efficiency: ≥90% Signal to noise ratio: 100dB Frequency range: 20Hz-20KHz Trumpet: 4-8ohm Product use: audio power amplification Product size: 35mm*25mm*3mm/1.37*0.98*0.11'' Product weight: 5g Paage size: 77mm*60mm*3mm/3.03*2.36*0.11'' Paing weight: 6g Note: Please allow slight size differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understand.Buy more disc

Bluetooth stereo digital amplifier board Amplifier chip: Yamaha YDA138 Operating voltage: 8.5 ~ 14VDC (power input with polarity protection) Recommended power supply: 12 V DC current 2A Output power: 2X10 W (8 ohms), 15 W + 15 W (4 ohms) Output impedance: 4-10 Ohm Model Specifications: SW-HF187 Colour:red Material:Metal + plastic Size:60*38*8.8mm Package Contents: 1 * Power amplifierOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1

PK LP-838 Car Home Power Amplifier HiFi 2.1 MP3 Radio Stereo Bass Speaker Booster Features: All-aluminum and sand-blasting shell, good heat dissipation. Mega bass part and volume control, offer you sensational music. Mini and compact design, space saving and easy to operate. Support connecting with mobile phones, computers, MP3, MP4 and DVD players. Low consumption and excellent thermal stability. Descriptions: Fine workmanship, long service life. Smart and lightweight, portable to carry. Great for use on your vehicle or your home. Specifications: Model: LP-838 S / N:75dB Frequency response: 29Hz - 18KHz Distortion: less than 0.1 ( 1KHz ) Rated power: 20W Rated voltage: 12V Impedance: 4-8Ω Material: aluminum Size: 15x10x3.5cm Color: black, silver Package included: 1 x LP-838 Power Amplifier (without Power Adapter!) Notes: 1.Due to the difference between different monitors,the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2.Due to the manual measurement and different measurement methods, please allow 1-3cm deviation.Thanks

Do you want to enjoy high-quality experience? Then get into our store and pick it up.！ Decription: Features: Onboard front-facing IC to improve the input sensitivity, high-definition sound quality. Name: TPA3116D2 Digital Amplifier Board Model: XH-M543 Chip type: TPA3116D2 Working voltage: DC12-26V Output power: 120*2W MAX, DC12V, 2*50W,DC24V, 2*120W Signal to noise ratio: 100db Channel: Dual channel stereo 92 x 68 x 16mm 100W 24V, maximum rated current is 4.2A The maximum is 100W, please try not to adjust to 100W 100W is the maximum amount, the current will follow the actual transfer to change, there is no fixed current Included: 1 x Audio Amplifier

Do you want to enjoy high-quality experience? Then get into our store and pick it up.！ Decription: Features: Name: XH-M542 Mono 100W Digital Power Amplifier TPA3116D2 Digital Audio Amplifier Board 12-26V Model: XH-M542 Chip type: TPA3116D2 Input voltage: DC12-26V Output power: 100W SNR: 100dB Channel: Mono 79*54*16mm Tips: The red line is the positive pole, the black line is the negative pole, please do not connect  power supply positive and negative reversely Included: 1 x Digital Power Amplifier

100% brand new and high quality Features: Amplifier board by default in the ACF-1 mode, use the CTRL mode setting, the welding will be welded out. The CTRL pin is usually connected to the Bluetooth MUTE pin. By inputting different voltage values at the CTRL terminal, four operating modes can be realized, namely, anti-topping mode 1 (ACF-1), anti-cancellation mode 2 (ACF-2), and anti-topping function off mode (ACF-OFF) and chip shutdown mode (SD). Specification: Input voltage: 3.6 ~ 8.5V Output: 2x10W Dimensions: 2.1x2.1cm/0.83x0.83inch Color: Green Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x HT8696 Differential Amplifier Board (without retail package) #HT8696 #Differential #Amplifier #Board #2x10W #Digital #Class #D #Audio #Power #Ampl

100% brand new and high quality Features: 5.0 Bluetooth version has higher transmission efficiency, and longer transmission distance. Large size black gold heat sink ensures efficient heat dissipation. With a switch, potentiometer can be used to adjust the volume,, easy to control the volume, very suitable for DIY speakers. Copper DC connector is adopted to withstand high current and no heat. 4 x 470uF green gold capacitor guarantees the power storage capacity, and the continuous and stable power supply is the premise of good sound quality. It comes with a DC head with cable, which is compatible with the input power interface of this product. Even if you don't have the DC head adapter or battery, you can connect it easily. Specification: Material: Fiber glass board + Electronic component Size: app.69 x 53 x 22mm/2.72 x 2.09 x 0.87in Color: As picture shown Quantity: 1 Pc Parameter: Model: ZK-1002L Bluetooth Version: 5.0 Chip Solution: Domestic With or Without Filter: Yes Adaption Supply Voltage: 5-24V (Optional 9V/12V/11/18V/24V adapter, high power recommended high voltage) Adapter Speaker: 30W-200W, 4Ω-8Ω Number of Channels: Left and right stereo (Stereo) Bluetooth Transmission Distance: 15m(Without occlusion) Protection Mechanism: Overheating, Short Circuit protection Tip: To have enough output power if the audio input is sufficient and the supply voltage/current is sufficient. The power supply voltage is higher and the relative power will be larger. The speakers with different impedances will have different output power. In the case of sufficient voltage and current, the larger the ohms of the horn the smaller the relative sound power. Please pay attention! Power Supply Voltage: 12V-8hom speaker/24W (Left channel) + 24W (Right channel), 4 ohm speaker/40W + 40W 15V-8homs /32W + 32W, 4 ohm/greater than 60W + 60W 19V-8homs /64W + 64W, 4 ohm/greater than 80W + 80W 24V-8homs /72W + 72W, 4 ohm/greater than 100W + 100W Note: No retail package. 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 includes: 1 x Bluetooth Amplifier

100% brand new and high quality Features: Model: TDA7293/TDA7294 Power supply: double AC 15V to 36V (AC needs rectification and filtering) or DC positive and negative 18V to 50V. Recommended double 35V (Note that it is not a dual 35V transformer, it is positive and negative 35V DC. And it is recommended to double 26V/200W toroidal transformer, after rectification voltage is about DC double 35V). Reminder: The battery can be used! (Must be a battery in series). Transformer power: The power of the power supply transformer should not be less than 200w when the two channels are used. The power of the power supply transformer should not be less than 100W when mono. The power supply rectifier filter: the total of the two channels should not be less than 40,000 uF, the rectifier bridge is preferably 25A or more. Output power: maximum output power 85W Midpoint voltage: less than 1mV Load: It can promote large-scale floor-standing speakers for home use. Radiator: According to the supply voltage, the power supply has a high heat output and a large output power. Plate material: FR4 double-sided fiberglass board, 2 amps of copper, blue ink, double-sided spray tin. Dimensions: 3.5x5cm/1.38x1.97inch Color: As shown Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Amplifier PCB Bare Board (without retail package) #TDA7293/TDA7294 #Mono #Channel #Amplifier #Board #Circuit #PCB #Bare #

Bluetooth 5.0 stereo 30W+30W audio High power digital amplifier power amplifier board XY-P15W 10W/15W/20W Stereo Product Characteristics： Product Name：Bluetooth stereo audio power amplifier board Product Model：XY-P15W Supply voltage：DC: 8~24V Bluetooth version：5.0 Connect distance：15 meters(visible) Output mode：stereo Output power(@1KHz)：16W*2 @12V 4Ω 、 10W*2 @12V 8Ω、15W*2 @16V 8Ω、 20W*2 @20V 8Ω、 30W*2 @24V 8Ω(cooling fin) Speaker selected(30W~150W)：4Ω(8~12V supply)、 8Ω(8~24V supply)、16Ω(8~24V supply) protection：Power reverse protection、Short circuit protection、Thermal protection Operation specification: Supply the module, the blue LED is on, and it goes into Bluetooth mode;Waiting for pairing after playing the audio tone; Turn on phone Bluetooth,“XY-P15W”will be searched and display; Click the “XY-P15W”,it will connect to the board. It connects successfully with an audio tone; After this you can play the music. The power amplifier board will prepare for the next pairing with an audio tone, When the Bluetooth is disconnected. NOTE: Keep 2 meters away from router to avoid WIFI interference 8~24VDC is recommended; upper than 26V, it will be damaged. Driving 4Ω load, power supply must be under 12V; and driving 8Ω load, supply must be under 24V. The supply current must be 2A at least. If the module works upper 20W x 2, a cooling fin will be needed. The line connecting speaker with module should be within one meter. ESD protection, please release ESD on your hands before you contact the module. 30W and upper power speakers is recommended. Fault Check: Check the power supply if the LED is not bright. If the LED is on, but Bluetooth device “XY-P15W”is not searched, check if the router is in the near, and keep away from the router. The speaker tapped when power on. Check that the speaker load is so small that the current through the speaker is enough for chip goes into DC protection. Try to lower the supply and restart. Check that if the power supply is low that cannot drive the speaker. 2A power supply current is ok. Floor noise in speaker when playing Play another music to verify the noise is not related with music itself. Replace the speaker to check If the noise is caused by speaker itself. Replace the power supply to check If the noise is caused by unstable power. It plays intermittently Check if the temperature of the board is high, and it goes into thermal protection. Check if the Bluetooth is unstable, adjust the angle between the connected device; And Check if a WIFI source is in the near. Package Included: 1 x Bluetooth 5.0 stereo 30W+30W audio High power digital amplifier power amplifier board XY-P15W 10W/15W/20W Stereo #Bluetooth 5.0 #stereo #30W+30W #audio #High #power #digital #amplifier #power #amplifier# board #XY-P15W #10W #15W #20W #S

Chip type: TPA3116D2 Power supply: DC 12-24V Channel amount: Dual 50W Product size: 37.2mm x 25.6mm x 1.5mm(LxWxH) color:blue Material: Metal Note: If your power supply and the audio equipment are common ground, when connecting the TV box, there will be a little current noise because this amplifier board does not have noise isolation function for power supply. So, you need a common ground isolation board; Please enhance the heat dissipation such as adding a little heatsink chip on the amplifier board when your power is relatively higher or your amplifier board has been used for a long time. Package include: 1x Amplifier Board Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1

Function: Support Bluetooth 4.1, support automatic link back function, support WAV+APE+FLAC+MP3 lossless decoding, stereo output. Specification: Power Supply: 3.7V-5V SNR: 90dB THD+N: -70dB Crosstalk: -86dB DNR: 91dB Support Profile: A2DP/AVCTP/AVDTP/AVRCP/HFP LOS: >;15m USB Power Supply: Universal Micro USB 5V Power Supply 3.7V-5V power supply pad: realizing external 3.7V-5V lithium power supply LED indicator: Bluetooth mode, long blue light 3.5mm Stereo Audio Interface: Standard 3.5mm Interface, Output Stereo Audio, Insert Headphones, Connect Power Amplifiers and Other Equipment Product size: 30mm*30mm*5mm/1.18*1.18*0.19'' Packing weight: 5g Operation Manual: 1. With USB power supply, the blue indicator flashes and enters Bluetooth mode; when you hear the voice broadcast "The Bluetooth device is ready to pair", you enter Bluetooth mode and wait for pairing; after Bluetooth searches for "XY_BT" (the name of the decoded device), you click on the connection. 2. When hearing the voice broadcast "The Bluetooth device is connected successfully", it means that the decoder board is connected to the mobile phone successfully, and the blue indicator lights up long enough to play music, then the blue indicator flashes. Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Include: 1 X Bluetooth Audio Receiver Board #usb #decoderboard #receiverboard #caraudiosystem #Bluetooth #bluetoothaudioreceiverboard #Headphones #Car Access

Thời gian giao hàng dự kiến cho sản phẩm này là từ 7-9 ngày Mô tả sản phẩm: Bộ chia HDMI 1x2 cung cấp giải pháp video HD cho siêu thị, trung tâm mua sắm, HDTV, STB, DVD, nhà máy chiếu, trung tâm điều khiển dữ liệu, phân phối thông tin, thuyết trình phòng hội thảo, giáo dục và đào tạo, phòng trưng bày của công ty, rạp hát tại nhà và v.v Đặc điểm sản phẩm: Một tín hiệu đầu vào HDMI được chia thành hai thiết bị chìm HDMI Hỗ trợ Full HD, Full 3D Hỗ trợ lên tới 1080P / 60Hz Hỗ trợ CEC Hỗ trợ màu đậm 30 bit, 36 bit Hỗ trợ Blue-Ray 24/50 / 60fs / HD-DVD / xvYCC Định dạng âm thanh kỹ thuật số, như DTS-HD / Dolby-trueHD / DTS / Dolby-AC3 / DSD / HD (HBR) Hỗ trợ kiểm tra lại tín hiệu Hỗ trợ đầu vào lên đến 15metres AWG26, chiều dài cáp tiêu chuẩn HDMI, đầu ra lên đến 20metres chiều dài cáp AWG26 Không giảm chất lượng Chi tiết sản phẩm: Phiên bản HDMI: HDMI 1.4a Độ phân giải HDMI: LÊN TỚI 1920 * 1080 / 60Hz Hỗ trợ định dạng màu video: 24 bit / màu sâu 30 bit, 36 bit Hỗ trợ định dạng âm thanh: DTS-HD / Dolby-trueHD / DTS / Dolby-AC3 / DSD HD (HBR) Băng thông tối đa: 225 MHz Tốc độ truyền tối đa: 2,25Gbps Tín hiệu TMDS đầu vào / đầu ra: 0,5 ~ 1,5Volts p-p (TTL) Tín hiệu DDC đầu vào / đầu ra: 5Volts p-p (TTL) Khoảng cách cáp đầu vào: 15m cáp tiêu chuẩn HDMI AWG26 Khoảng cách cáp đầu ra: 20m cáp chuẩn AWG26 HDMI Dòng điện làm việc tối đa: 350mA Phạm vi nhiệt độ hoạt động: (- 15 đến +55) Phạm vi độ ẩm hoạt động: 5 đến 90% rh (Không ngưng tụ) Kích thước (Chiều dài x Chiều rộng x Chiều cao): 62x51x11mm Gói hàng bao gồm: 1 * Bộ chia HDMI 1x2 1 * Dây cáp nguồ

Description: ST company TDA7388 (STMicroelectronics, the world's fifth largest semiconductor company services all electronic market segments leading integrated device manufacturer). Production of four-channel car dedicated IC chip is used in the form of BTL output, peripheral original pole small but excellent sound quality, the installation is also very convenient, packaged as 25-pin dual in-line. Power supply for the DC 12V-14.5V, this product is four-channel amplifier module, the most common of the circuit pattern design concept is also very consistent with the overall. effect of the IC. Kit material is also very particular about Weimaraner dedicated audio capacitors CBB capacitance Matsushita, Japan's ruby filter capacitor, in order to facilitate connections. All of the board's input and output terminals using a 5.08mm facilitate external connection. Specification: Material: FR-4 glass fiber copper clad sheet Product Size: 80 x 50 x 40mm/3.15 x 1.97 x 1.57inch Input voltage: single DC 12-14.5V Output power: 4 x 41W Weight: 70g Package Includes: 1 Piece DC 12V TDA7388 Four Channel 4 x 41W Audio Power Amplifier Board BTL PC Ca

tpa3116 amplifier 100W Subwoofer Amplifier Board;Frequency response range: input: 20 hz - 20 KHZ, output: 20 hz - 180 hz tpa3116 2x50w amplifier board Operating voltage range: DC 12-24V(maximum voltage is no more than 24V); built-in TPA3116 amplifier chip;This is a pre-amplifier, bass frequency processing, with bass volume potentiometer control of the bass amplifier board. bluetooth amplifer board DC 12-24V power supply, wide operating voltage, power-saving design, more than 90% power efficiency. Maximum support 100W (Bass) bass channel output Audio input sensitivity: 500 mv;Speaker impedance: bass speaker impedance: 2-8 ohm You can use a good switching power supply adapter, laptop switching power supply, Here is our 24V power diy amplifier Instructions for function switch: 1. Plug in the power and turn on the default Bluetooth e 2. When the Bluetooth is disconnected, press the switch to switch the audio input e 3. Bluetooth playback status, short press the switch to pause/play Power Source:DC 12-24V Type:TPA3116 Subwoofer Amplifier Board Colour:Blue+black Material:PCB+electronic components+metal Size:100 x 100mm Package Contents: 1 x TPA3116 Subwoofer Amplifier Board (Because each batch of electronic components is different, the appearance or color of the product may be different from the picture)<br></br>Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1

Colour:black Material:plastic Size:50 x 56 x 18mm Package Contents: 1 * Amplifier BoardOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1

Product el: XH-A305 Input voltage: DC12-24V Working Current: more than 3A Number of channels: Two channels + Subwoofer Installation diaphragm: 3MM Output power: Bass100W + 50WX2 Audio input: Bluetooth, 3.5mm AUX Bluetooth Version: 5.0 Amplifier Chip: TPA3116D2 X2 The Transparent shell requires copper mounting. colour: blue Material: plastic size: 116x73x30MM Package Contents: 1*Amplifier With BoxOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1

❄ Welcome To Chitengyesuper ❄ 100% brand new and high quality Material: Cooling aluminum+Assemble the amplifier board The board uses TDA8946 power chip, 6.5 mono seat, rated power 15W X 2 Peak power 30W +30 W. Use more than 12V2A DC power supply, left and right stereo output channel. Sound output full and stable Color: light green PCB size: about 12.8*7

Adopt TPA3251D2 The main filter electrolytic adopts imported famous brand capacity 330UF/100V x 4 to ensure strong and continuous power support. The resistors are high-precision chip resistors to ensure a good signal-to-noise ratio of the whole machine. Use special inductance for audio to ensure the sound is clear and powerful. PCB adopts 1.6mm thick double-sided board, 2.0 oz copper thickness, and full tinning process to ensure good passing performance of large and small currents. Working voltage: DC24-36V switching power supply (DC) colour:Photo color Material:abs+metal size:103 x 78MM Package Contents: 1 x Power Amplifier BoardOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1

Features: Amplif: Mini HIFI audio power amplifier.Two main channel output. Two Channel: Left and right channel outputs are interfaces for speakers or speakers. Clear Sound: Low distortion supplies a clearer, stronger and more powerful sound. Material: Made up of aluminum alloy body,  thick, feel is also very good. LED Lighting: Large knobs are designed with blue LED lights tomake the products morebeautiful and beautiful. Specification Material: Aluminum alloy Color: Black Size(L x W x H): About 12.5 x 10.5 x 4.2cm/4.9 x 4.1 x 1.65inch lnput Voltage: DC12V >3A  Frequency Range:20Hz-20KHz  Output Power: 20WX2 RMS SNR:85dB Load Impedance: 4-8Ω Total Harmonic Distortion < 0.4% Package included: 1pc x Power Amplifier 1pc x User Manual #Power #Amplifier #DC #12V #Stereo #Audio #Dual #Channel #Aluminum #Alloy #Home #LED #Display #Professional #Auto

1. Built-in two TPA3116D2 digital amplifier chips with stable performance to accomplish high efficiency running, with low power consumption, high transmission efficiency, good compatibility 2.100 decibels signal-to-noise ratio, good sound quality and pure music. High fidelity, low noise, very suitable for high quality sound equipment, instrument, control circuit and telephone channel amplifier 3.Volume can be easily adjusted by the knobs, 2.1 channels stereo, high efficiency and strong amplifying power 4.Wide voltage power supply from 12V to 24V DC, energy saving design, the efficiency is high 5.High-level ulation system configuration, advanced level reduces the number of components, integrated self-protection circuit, including overvoltage, undervoltage, overheating, DC detection and short circuit protection, heat-resistant package. Product name: 2.1 Channel TPA3116D2 Bluetooth Audio Amplifier Board AMP Chip: 2*TPA3116D2 Max Output Power: 2*80W+100W Power Supply: DC12-24V Channels: 2.1 Output Impedance: 4-8Ω Working Type: Class D Efficiency: 90% Audio Input: AUX / Bluetooth 5.0 Stanby Current: 60mA Frequency response range: 14-100KHZ Signal to noise ratio: 100 decibels Number of channels: 3 channels Switching frequency: 1.2MHZ Power amplifier board Size: 116 x 73 x 30mm size:126 x 81 x 45mm Material:plastic colour:Transparent+black Package Contents: 1 x TPA3116D2 Bluetooth Audio Amplifier BoardOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1

【ter】2*50W Bluetooth 5.0 Subwoofer TPA3116D2 Audio Power Amplifier Stereo BoardProduct Name: TPA3116D2 Bluetooth amplifier AMP Chip: 2x TPA3116D2 Max Output Power: 2x50W Power Supply: DC12~24V Output Impedance: 4~8ohm Working Type: Class D Audio input: AUX / Bluetooth 5.0 Number of channels: two channels Colour:Black Material:plastic Size:110x70x21mm Package Contents: 1xZK-TB21 TPA3116D2 Bluetooth 5.0 Subwoofer Amplifier Board Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.Audio i

Specification: ZK-502M Type: Bluetooth power amplifier board Adapter power supply: DC5-24V Channel: 2 Bluetooth version: 5.0 size:60 x 60 x 29mm Material:plastic colour:black Package Contents: 1 x ZK-502M Amplifier BoardOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1

XH-M590 two-channel digital power amplifier board, input voltage is DC12-24V, onboard RCA and 3P terminal two audio input methods, more convenient to use The power amplifier board is also equipped with a 50K volume adjustment potentiometer, which can adjust the volume at any time; dual-channel audio output, power is 2*100W. This power amplifier also has speaker protection, and there is no current impact sound when switching on and off. Volume adjustment potentiometer XH-M590 comes with a volume adjustment potentiometer, which is convenient and practical; turn clockwise to turn on the volume and increase the volume, and turn it counterclockwise to decrease the volume to turn off. Two audio input methods XH-M590 uses two input methods, RCA and 3P audio terminal, which is more convenient to use; (but the two input methods cannot be used at the same time) The heat emitted by the high-efficiency array radiator chip produces the "heat island effect" from the center through the staggered channels. The array-type heat dissipation structure helps air convection and clearing, and the heat dissipation channel is more smooth and high heat dissipation efficiency. Product name: Two-channel digital power amplifier board Product el: XH-M590 Audio input: RCA/3P terminal Input voltage: DC12V-24V (24V recommended) Number of channels: two-channel stereo Sound quality magnification: 63 times Output power: 2*100W Output impedance: 2-8Ω size:11 x 7.9 x 3cm Material:PCB colour:black Package Contents: 1 x XH-M590 Audio AmplifieOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1

ღ Welcome To Colorfulswallowfly ღ Description Chip: TPA3116D2 Channel: 2.0 Max. output power: 50W+50W Chassis size: (W) 90 * (H) 39 * (L) 108 mm Power range: DC 12-24V (Recommend to use hi-end power adapter) 1 set of Stereo L/R RCA input, 1 set of Banana Speaker Jacks Package include: 1× powe ampl

🐫🐫Dear friends, {iffarmerrtr} has opened! ! ! Warmly welcome all of you to come and patronize. I will bring you the best shopping experience with my most sincere service! ! !🐫🐫 ======================{iffarmerrtr}====================== Features: 1. Red and gray toroidal inductors are designed for digital power amplifiers with low loss, high bandwidth and high fidelity. 2. Film capacitor 684 is a dedicated capacitor for audio amplifiers with low loss, high bandwidth and high fidelity. 3. Input mode with two AUX and Bluetooth audio sources 2 in 1 . 4. Volume adjustment potentiometer with switch for easy volume control, great for DIY speakers. 5. Direct current copper female head, fence terminal, can withstand large current, no heat, no damage to the line, good wiring, not easy to short circuit. 6. Bluetooth version 5.0, higher transmission efficiency, greater transmission distance. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow minor deviation due to manual measurement. 2. Objects may have Logo, if you want to know, please contact us. Otherwise, please do not bid. Specification: Type: Two-channel bluetooth 5.0 power amplifier board Amp Chip:TPA3116D2 Output impedance:4~8 Ω Speaker Output power: 100W*2 Current: ≥3A Filter: yes Power supply voltage: 5-27V Bluetooth version: 5.0 Audio input: bluetooth, AUX Number of channels: 2 channels Size: 84X52X24mm Bluetooth transmission distance: 15 meters Support Format:FLAC/APE/MP3/WMA Protection mechanism: Overvoltage, Undervoltage, Excessive, DCdetection, Short circuit protection Package including： 1 set x power amplifier

ღ Welcome To Colorfulswallowfly ღ Technical parameters: 1. Supply voltage: DC 7V-15V 2. Output power: 10w + 10w (8 load) 3. Efficiency: 90% 4. Shutdown Current: 4uA 5. Quiescent current; 20mA 6. SNR: 86% 7. Total harmonic distortion: 5W / 1KHz / 8 ---- 0.1% 8. Frequency range: 20Hz-20KHz 9. Input impedance: 15K 10. Output Impedance: 4-8 How to use: 1. The power supply voltage limit is 16.5V, do not use more than this voltage. 2. The power supply is recommended for 12v, 3A power supply filter better 3. 4-8 inch stereo speakers recommended. 4. Do not short-circuit the audio output to each other or shorted to ground. 5. Carefully check before electricity, ensure wiring is correct before electricity. Package Included: 1 x PAM8610 2*15W Dual channel Stereo Class Digital Amplifier Boar

Description: This product uses 6j1 tube to do pre-level lm1875 amplifier, with amp function. After 6j1 tube buffer, can significantly reduce the "digital taste" and "transistor sound", so that the whole sound system to bring a sweet natural "bile", the sound is more sweet, soft. Than the average lm3886, tda7294 better listen. The pre-level is the use of 6J1 fever tube gall bladder before the class: imitation machine music fax X-10D circuit principle design, to be reasonable to optimize, more stable than the original machine performance, the tube to play increased by 10 percent. This machine uses dual AC 18v input, do not have to worry about looking for high voltage power supply The board comes with boost to enjoy you in the low power supply to enjoy the charm of high-voltage tube. Power works: a power supply, tube filament began to heat, then boost from the zero voltage began to boost, and other tube filament hot, the boost is just boost finished, so this is the same with the bile rectification, 4 470UF The capacitor filter is very clean, excellent power supply system will not have the exchange of sound, the filament is DC 12V power supply, the need for two tube filament is in series, the use of DC filament is also to reduce noise. Before the output level automatically switch to promote the headset or push the rear lm1875 amplifier, that is, after inserting the headset, the amplifier without output, do not insert the headset, is to promote the amplifier output. Specification: Power supply voltage: the default dual AC 18v / current 3A, power 60w or more Amp / front output: magnification about 0.8 times Lm1875t amplifier output power: typical 20W Speaker impedance: 4Ω-8Ω Total Harmonic Distor

Description: This is a power amplifier with preamplifier, bass, treble adjustment and total volume potentiometer control. Use DC-12V power supply, maximum support 2 * 15W+30W dual channel output. Support 2.1 mono 15W output. Using YDA138-E * 2 high-performance digital power amplifier chip as the core. This digital amplifier board has large-area heat dissipation which can last longer, has high performance to ensure the digital amplifier board extremely reliability and safety Specification: Name: Audio Amplifier Board Function Type: Amplify audio Model: XH-A355 Chip type: Class D Chip model: YDA138-E * 2 Power Supply Voltage: DC12V Standby current: 60mA Output channel: Stereo * 2 + bass * 1 Output power: 2 * 15W + 30W Noise Ratio: 88% Material: ABS Size: Approx.8 x 6 x 1.5cm/3.1 x 2.4 x 0.6 inch Installation size: 73mm Installation aperture: 3mm Weight: 55g Package Includes: 1x Digital Amplifier Board Note: Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank