DROK Dual Channel Bluetooth Amp Board, Bluetooth Amplifier,50W+50W Bluetooth Speaker Stereo Audio Amplifier Receiver Home, DC12V/24V Wireless Ampli Module with DC12V 5A US-type Power supply Adapter

DROK Dual Channel Bluetooth Amp Board, Bluetooth Amplifier,50W+50W Bluetooth Speaker Stereo Audio Amplifier Receiver Home, DC12V/24V Wireless Ampli Module with DC12V 5A US-type Power supply Adapter

Product Parameters: Amplifier type: AV amplifier Channel: 2 channel Weight: 0.154kg Resistance: 4ohm Dimension: 78*70*38cm Input voltage: 12V-24V Input current: at least 2.5A Bluetooth connecting distance: within 10 meter Bluetooth standard: Bluetooth 4.0+EDR Headset power: 105mW*2 Speaker output power: 50W*2 Power input: DC 12V-24V 3A--4A Note: Connect the speakers, please use 12V power supply; Connect the headset, please use 5V power supply; Recommend speaker power is 10W to 120W. Bluetooth not connect succeed: power off it and restart again Amplifier no sound: check whether volume normal, confirm insert DC 12V-24V power Aux audio input no sound: only can use 3.5mm audio signal cable IBM(Lenovo) PC cannot connect the Bluetooth with this amplifier, need to download the Bluetooth driver then connect Bluetooth device, click>> Control Panel, find the "Sound" option, setting Bluetooth as the default device. Package includes: 1pcs Bluetooth amplifier 1pcs audio signal cable(1.2m length) 1pcs AV audio signal cable(1.5m length) 1pcs US-type power supply

  • ASIN: B013AIQWLE
  • Brand: DROK
  • Size: 50W+50W
  • Manufacturer: DROK

DROK TDA7297 15W+15W Audio Power Amplifier Module AC/DC 9-18V 2.0 Dual Channel Stereo Amp Board, DIY Sound System Component

DROK TDA7297 15W+15W Audio Power Amplifier Module AC/DC 9-18V 2.0 Dual Channel Stereo Amp Board, DIY Sound System Component

Parameters:Power Supply: AC/DC 9-18V, Recommend 12V 2AOutput Impedance:4-8 ohmsEfficiency: up to 90%Output Power: 15W+15WChip: TDA7297 Dual-Channel Amplifier ChipPlease follow the picture to connect the Power Supply and Speaker. Package Includes:1x Mini Amplifier

  • UPC: 619397028223
  • ASIN: B00C4MT274
  • Brand: DROK
  • Size: 15W+15W
  • Manufacturer: DROK

DROK AC 80-300V 100A Volt Amp Power Energy Meter

DROK AC 80-300V 100A Volt Amp Power Energy Meter

Parameters: Voltage Measuring Range: AC 80.0-300.0V Current Measuring Range: AC 0-99.99A (Resolution: 0.01A, display 100.0A when over 100A) Active Power Measuring Range: 0-3000W Resolution: 0.1W (under 10 000W);  1W (over 10 000W) Electric Energy Measuring Range: 0-9 999 999kWh Resolution: 0.001kWh (0-9 999.999kWh); 0.01kWh(10 000.00-99 999.99kWh); 0.1kWh(100 000.0-999 999.9kWh); 1kWh(over 1 000 000kWh) Measuring Accuracy: 1% ± 2 digits Measuring Speed: 2 times per second Outside Dimension: 79*43*48mm Installation Dimension: 76*39mm Save Function: Automatically save the accumulated electricity value during the power outage. Reset Function: Long press the reset button for 5 seconds, the accumulative electricity will be cleared to zero. Operating Condition: Working Temperature: -10~+50℃ Working Humidity: 10 ~ 80% (no condensation) Working Pressure: 80 ~ 106kPa Sunlight: No direct exposure Wiring Connection: (a) Connect the green wire of secondary CT(current transformer) to the BLUE terminal of the meter. (b) Pass the circuit under measurement through the hole of the CT, and then connect it to the green terminal. (c) After power on, the screen will display the measured data. Note: The multimeter can only work on AC 50-60Hz pure mains supply. Do not use it to measure square wave, inverter output and the corrected sine waves circuits, otherwise the product will burn! Do not wrongly exchange the wiring of voltage input(green terminal) and current transformer(blue terminal), otherwise the product will burn! Do not squeeze the LCD screen when install the multimeter, otherwise the screen will display gibberish or broken codes. Package Includes: 1 X AC Power Meter

  • ASIN: B01MRZAFAF
  • Brand: DROK
  • Size: AC 80~300V
  • Manufacturer: DROK

Digital Amplifier Board, DROK Mono Channel Amplify Chip DC 12V-24V Class-D 100W Subwoofer Single Channel Full Range Bass Digital Audio Amp Module

Digital Amplifier Board, DROK Mono Channel Amplify Chip DC 12V-24V Class-D 100W Subwoofer Single Channel Full Range Bass Digital Audio Amp Module

Product Introduction: The digital amplifier board adopts mature and stable TPA3116D2 amplifier chip of TI Company. It can freely switch to single channel full frequency or bass mode. The op amp is replaceable, and the heat sink is extended, can handle large dynamic signal. Product Features: 1. Large-sized heat sink, can handle large dynamic signal. 2. Adjustable cut-off frequency. 3. The op amp can be easily replaced by DIY. 4. The input coupling capacitor adopts the imported EPCOS film capacitor. 5. Full-frequency mode and bass mode adjustable design, no need to change any components, easy to use. 6. Adopts the gold-plated RCA for the audio input connector. 7. Wide input voltage range of DC12-24V, the higher the input voltage is, the greater the power is. Specifications: Maximum output power: 100W*1 Signal to Noise Ratio (SNR): ≧98dB Power supply: DC12-24V Frequency response: subwoofer 20-200Hz; full frequency 20-20kHz Impedance: 4-8R Distortion: 0.1(%) Control method: potentiometer knob Input interface: gold-plated RCA terminal Output interface: 3.96MM terminal block Bare board size: length 90* width 80mm (excluding protruding parts) Bare board net weight: 200g Package Including: 1x Digital amplifier board

  • ASIN: B07H3T1KLQ
  • Brand: DROK
  • Size: Mono Channel
  • Manufacturer: DROK

DROK Ultra Small Hi-Fi 10W+10W Dual Digital Audio Amplify Circuit Board Stereo AMP DC7.5-15V 12V 8 Ohm 20mA 2 Channels PC Class-D Module Audio Amplifier

DROK Ultra Small Hi-Fi 10W+10W Dual Digital Audio Amplify Circuit Board Stereo AMP DC7.5-15V 12V 8 Ohm 20mA 2 Channels PC Class-D Module Audio Amplifier

Feature: Work: D Class Quiescent Current: 20mA Efficiency: 90% Rated output power: 10W +10 W (8?) Frequency response: 20Hz to 50KHz Operating voltage: DC7.5-15V Recommended supply voltage: 12V, the center PIN of 12VDC is +. PCB board size: (40 * 40) mm Power interface: Wiring port NOTE: It is NOT acceptable to connect the - outputs of the L & R speakers together. Package includes: 1x Mini Amplifier Board

  • ASIN: B010LKFXVY
  • Brand: DROK
  • Size: Type_Wire Terminals
  • Manufacturer: DROK

DROK Portable Wireless Bluetooth Audio Receiver Board, Support TF Card USB Decording Play, Bluetooth Stereo Music Transmitter Module for Headphones HiFi Amplifier

DROK Portable Wireless Bluetooth Audio Receiver Board, Support TF Card USB Decording Play, Bluetooth Stereo Music Transmitter Module for Headphones HiFi Amplifier

Features: Three kinds of audio input: Bluetooth receive; USB decoding play; TF card decoding play. Power: DC5V; Effective bluetooth transmission distance: 10-15 meters. Support multiple formats: MP3, WMA, WAV, FLAC. The front output can directly promote headphones or connect rear amplifier. Key Operation: MODE: press the "MODE" button to switch among three kinds of audio input, Bluetooth receive; USB decoding play; TF card decoding play. NEXT: short press the "NEXT" button to play the next song, long press the "NEXT" button to increase volume. BACK: short press the "BACK" button to play the previous song, long press the "Back" button to decrease volume. EQ: sound effect manager(only valid under USB or TF card playing mode). Audio Output: for connecting headphones, active loudspeaker box or amplifier(if yours is passive loudspeaker box, please connect amplifier first). Connection: 1. First off it's a Micro USB connection for power, powered by DC 5V, or if you want to solder your own power then you can take that route if you like. Then connect headphones or active loudspeaker box or amplifier to the audio output. 2. Open the Bluetooth function of your cell phone or other devices with Bluetooth audio stream output support(such as laptops, tablet PCs, etc.), please first delete other bluetooth devices that had been connected to your phone before on your phone(or the bluetooth connection will be unstable), and then the phone will automatically search and pair with the module, no pairing codes or button mashing needed. After a successful connection, the phone will show that the module Xpecial audio has been connected, while the LED blinks blue. Package Includes: 1 x Bluetooth Audio Receiver Board

  • ASIN: B01FU12QC8
  • Brand: DROK
  • Size: Bluetooth Audio Receiver
  • Manufacturer: DROK

DROK TDA7498 2X100W Dual Channel Class D Audio Amplifier Board, DC 24V Digital Stereo Power Amp Module for 8Ω Subwoofer Computer Speaker Motorcycle

DROK TDA7498 2X100W Dual Channel Class D Audio Amplifier Board, DC 24V Digital Stereo Power Amp Module for 8Ω Subwoofer Computer Speaker Motorcycle

Features: Amplifier chip: TDA7498 Output power: 100W+100W (Vcc = 36 V, RL = 6Ω, THD: 10%) Output power: 80W+80W (Vcc = 34 V, RL = 8Ω, THD: 10%) Wide range single power supply: 15-34VDC(recommended 24V) Applicable speaker impedance: 8 ohm best(4 ohm or 6 ohm also works) Four fixed gain settings available: 25.6 dB, 31.6 dB, 35.1 dB and 37.6 dB Adopts differential input to minimize common-mode noise Protection: short-circuit protection, over temperature protection With standby and mute features High efficiency: 90%   Description: The TDA7498 is a 100W+100W dual-BTL class-D audio amplifier with single power supply designed for home theater and active speaker applications. It adopts 36-pin PowerSSO packaging with exposed pad up (EPU), more convenient to mount a separate heatsink.   Mode: The TDA7498 has three kinds of modes: standby, mute and normal working mode(you can set the mode by shorting the pins shown on pictures). Standby mode: all circuits closed, at a low power state; Mute mode: all input signals connects ground, the duty cycle of forward/backward PWM output signal is 50%; Normal working mode: the amplifier works normally.     Package Includes: 1 x TDA7498 Amplifier Board

  • ASIN: B01FXE2TD8
  • Brand: DROK
  • Size: TDA7498
  • Manufacturer: DROK

3 Inch Speaker, DROK 15W Antimagnetic Tweeter Speakers 3 Inch Square 8 Ohm HiFi Full-Range Speaker Strong Interference Immunity 52mm for DIY Audio Loudspeaker 8 Ohm Speakers

3 Inch Speaker, DROK 15W Antimagnetic Tweeter Speakers 3 Inch Square 8 Ohm HiFi Full-Range Speaker Strong Interference Immunity 52mm for DIY Audio Loudspeaker 8 Ohm Speakers

Parameter: Unit Size: 3 inches Horn Outer Diameter: 78mm Screw Holes Diagonal Pitch: 83mm Speaker Height: 52mm  Rated Power: 15W Impedance: 8 ohm Sensitivity: 90dB  Equivalent Volume: 2.5L Effective Frequency: 108Hz -20kHz  hole diameter: 71mm Package includes: 1 X 3 Inch 8 ohm 15W Speaker (Square)

  • ASIN: B01IN8YI4Y
  • Brand: DROK
  • Size: 15W_8 Ohm
  • Manufacturer: DROK

[Updated] BT20A Bluetooth 4.2 Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116 (with Power Supply)

[Updated] BT20A Bluetooth 4.2 Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116 (with Power Supply)

Quick tips:1. Please plug the power cord into the amp THEN the wall.Some customers may see some slight sparks flying when they plug the power supply into the amplifier, because they use it in wrong way, you need to connect the amp to the power supply first, then plug the power supply into the 110v AC outlet, don't worry about the sparks, because this is class d amplifier, the capacitors need to charge when the power in, it's normal and safe.2. The amp will off when you switch off, but it's normal that the power LED light stay on even switch off, the power LED light on means the power supply in. 3. You can pair with your Bluetooth device when the amp power on. But if Bluetooth connects, playback from the physical input is interrupted. If you want to connect this amplifier with the audio cable(physical input), you need to interrupt the Bluetooth first.(turn off Bluetooth from your Bluetooth device). Parameter: 1. Power supply range: 12v-25v; 2. THD: ≤ 0.5%; 3. Frequency Range: 20Hz - 20kHz (±1 dB); 4. SNR: ≥ 98dB; 5. Input sensitivity: ≤ 280mV; 6. Bluetooth transmission distance: 28ft; 7. Terminating impedance: 2Ohm - 8Ohm; 8. Output power: 100W + 100W; 9. Input mode: Bluetooth and Analog; 10. Bluetooth Name: breeze; 11. Power supply: 24V 4.5A; 12. Supplied Accessories: Amplifier, Power supply, AC power cord, Manual.

  • ASIN: B07BQC7GNL
  • Brand: Fosi Audio
  • Manufacturer: Fosi Audio

DROK Portable Stereo Bluetooth Audio Receiver Stereo Receiver Board Receiver Module for DIY Wireless Stereo Speaker Amplifier Support V3.0 Bluetooth for Headphone

DROK Portable Stereo Bluetooth Audio Receiver Stereo Receiver Board Receiver Module for DIY Wireless Stereo Speaker Amplifier Support V3.0 Bluetooth for Headphone

Technical parameters: Effective transmission distance: 10-15m (different environment and obstacle will be different) Audio input method: 1. Bluetooth 2.USB decode and play 3. TF card decode and play 4. AUX input external audio source Supported play format: MP3, WMA, WAV, FLAC(High-fidelity audio) Power supply: DC 5V (mobile phone charger, the USB port of computer, can use micro USB cable to connect ) Audio output: Earphone or post-amplifier Bluetooth link name: UMSONG Audio Dimension: 50×38×8 mm (L× W × H) Weight: 8g Operating instruction: After the module is powered on, the default audio input of this module is Bluetooth and it will search the Bluetooth device automatically. If there is no Bluetooth device to be connected in 1 minute, the audio input of this module will be switched to AUX input automatically. In the status of AUX input, the module cannot connect Bluetooth device. If you want switch the audio input to USB, TF card, please long press MODE button. The switching order is AUX----USB/TF card-----Bluetooth-----AUX. Package includes: 1× Stereo Bluetooth Audio Receiver Board

  • ASIN: B016Y1850U
  • Brand: DROK
  • Size: Receiver Board
  • Manufacturer: DROK