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Best High frequency Switching Power

Rockville RWM-3US Triple Wireless UHF 3 Microphone System w/Adjustable Frequency,black

  • ...lay (3) Antennas (6) AA batteries 6 ft. to audio cable 5 ft. power adapter Owners manual.
  • Rockville RWM-3US Triple Wireless UHF 3 Microphone System w/Adjustable Frequency 20 Adjustable Unique Frequencies on each microphone ensures interference free operation Easy frequency switching by simply hitting the button on the microphone.
  • (3) Metal handheld microphones with digital display Professional 19 metal rack mount receiver with LCD display Illuminated rotary knobs One button frequency switching allows you to hit the button on any of the 3 microphones and the channel will change on that microphone and auto-sync with the receiver.
  • The display on the microphone shows channel, frequency, battery life The display on the receiver shows RF signal strength, AF signal strength, frequency channel, battery life of each handheld mic Operating Range: 300 400(indoor), 250 350(outdoor) Each mic uses different channel groups so that you will not get interference from one microphone to the other (There are 60 total different channels on this system 20 unique frequencies per mic).
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CW QRP Shortwave Radio Kit - CW Transceiver Shortwave Radio Kit

  • ...used for if. After ta2003 multiplication detection, the sound size is adjusted by digital potentiometer and sent to audio active filter circuit. Finally, LM386 drives speaker, and if frequency supports calibration setting..
  • Use 3 bs170 parallel outputs, class E amplification, 12V power supply, output power 5W! Relay switching is used for transceiver, with the function of transmitting delay adjustment to avoid frequent relay switching and improve the isolation of transceiver channel..
  • It has the function of automatically sending call signs, which is very convenient to use. The MCU uses the original code of our store, which can adjust the code speed, sidetone frequency and sidetone size. It can input the call sign by itself (in automatic key mode) and support power down saving..
  • The PCB board of this kit can be conveniently put into the 88 * 30 * 120mm aluminum chassis (the shell needs to be prepared by itself, and the opening size of the front and rear panels is in the mesh disk). Main indicators Power supply: 12V Working current: receiving ≈ 120mA @ 12V.
  • Emission ≈ 1A @ 12V Transmitting power: 5W @ 12V Frequency range: 7.000mhz-7.100mhz, 1kHz / 100Hz step Working mode: CW transceiver, SSB receiver.
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California Project

  • Built-in Amplifier - With a MOSFET power supply you get improved switching speeds, better performance with less power from the driver, lower gate-to-drain feedback capacitance, lower thermal impedance for higher switching frequencies.
  • Variable Low-Pass Filter - A low-pass filter is an electronic circuit that removes all the notes above the filter's frequency setting. You will use the Low-pass filter to primarily keep high notes out of your subwoofer(s).
  • High Level Inputs - Speaker level inputs are commonly referred to as high-level inputs. It will be used to connect the LOPRO10 to your factory radio or an aftermarket radio that does not have low-level (RCA) inputs.
  • Low-Level Inputs - Line level inputs (RCA inputs / low-level inputs) use RCA interconnect cables to link the LOPRO10 with the source unit. Most aftermarket radios have multiple pairs of RCA outputs that can connect to multiple amplifiers.
  • Variable Bass Boost - Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.
  • Specs – 15.5” x 11” x 3”. If you are short on space, this is a great solution for you. The combination of amplifier and subwoofer all into one, makes this ideal for spatially challenged vehicles. Weight: 13 lbs..
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DC12V-24V 2.1 Channel TPA3116 Subwoofer Amplifier Board High Power Bluetooth Audio Amplifier Board 50W+50W+100W (Bluetooth Amp),Bluetooth Amp

  • 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).
  • 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.
  • 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.
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Mophorn 1200W MPPT Waterproof Solar Grid Tie Inverter DC to AC 220V Micro Inverter (1200w 220v)

  • ...tem, it can help you monitor the power generation efficiency of the power station and reduce workforce expenses..
  • High Performance: Reverse power transmission. With efficient reverse power transmission technology, the power transmission rate up to 99.9%. Full digital control can be achieved by using intelligent soft switching technology and built-in MCU for charging modules.
  • Introducing high-frequency switching power supply and SPWM control technology. It features strong anti-interference ability, fast calculation speed, a high degree of intelligence, high control precision, and excellent output waveform..
  • Protective & Reliable: IP65 waterproof design and aluminum alloy material can effectively prevent rainwater erosion on the surface. It provides electrical isolation, more reliable to use. It offers multiple protection functions, such as over-current protection, short circuit protection, low-voltage protection, over high voltage protection..
  • Easy Operation: Lightweight and easy to install, many inverters can be stacked arbitrarily to form a single-phase parallel stacking system. Almost no maintenance work is required, clean the dust on the photovoltaic panel occasionally..
  • Sustainable Use: This grid-tie micro-inverter can convert DC power generated by s....
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OCESTORE Crystal Oscillator Tester Frequency Counter Tester Meter 1Hz-50MHz Cymometer Measurement Tester Module LED DIY Kit

  • 【OPTIMAL PERFORMANCE】OCESTORE premium upgrade Frequency Counter Tester Meter based on PICmicrocontroller that can measure frequency of 1 Hz to 50 MHz,designed to measure the oscillation frequency of the most crystal oscillators..
  • 【HIGH QUALITY】OCESTORE premium Frequency Counter Tester Meter is made of high quality material which can use for a long time.Programmable addition and subtraction frequency settings, used to measure radio transceivers and other equipment..
  • 【SUPER IMPORTATNT】with crystal oscillator measurement function and programmable addition and subtraction frequency settings, five-digit digital tube display, convenient and intuitive, all use in-line components, simple circuit, easy to make..
  • 【OPTIMAL RELIABILITY】Power supply : USB 5V or DC 5-12V.
  • Crystal Test Range: about 4MHz-48MHz.Automatic range conversion, no need for manual switching.
  • All in-line components, easy to install and debug..
  • 【PACKAGE & SERVICE】Package Include: 1 Pcs x Crystal Oscillator Frequency Counter .Any question Pls fell free to contact us, we will reply you within 24H.And we offer a 12 month warranty..
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Music Power: The Story of Capital Radio 604

  • ...] - COSMO C1 is equipped with Hollyland’s HEVO technology with Adaptive Frequency Hopping (AFH), Seamless Retransmitting and Simplified UVC Streaming, bringing you boosted signal strength and superior Anti-Interference performance. Fast, stable and smart video transmission in 5GHz frequency..
  • [Unnoticeable Channel Switching] - HEVO completes each synchronous frequency hopping in 0.001s with only 40ms ultra-low latency and up to 1,000ft line of sight (LOS) range. Whether in manual or auto-switching mode, your Electronic Field Production monitoring will no longer suffer from screen flickering or black screens in complex wireless environments..
  • [Wide Range Device Compatibility] - Embedded with HEVO’s USB Video Capture (UVC) technology, it takes just one USB-C cable to push 1080P60 HD video to your computer for direct live streaming. COSMO C1 supports HDMI/SDI input, HDMI+SDI+UVC Output on RX, and SDI LOOPOUT on TX. It can work with any mainstream camera, monitor, and switcher..
  • [Vertical & Horizontal Mounting] - COSMO C1 comes with 1 Peasecod Pan-tilt with Cold Shoe and 1 extra Cold Shoe for you to mount freely. 2 mounting holes at the front panel allows installing the unit horizontally, ideal for evening out the weight to balance the setup on camera ....
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Rockville RBG18S 18' 2000W Active Powered PA Subwoofer W/Dsp+Limiter Pro/DJ

  • Built-in Amplifier - With a MOSFET power supply you get improved switching speeds, better performance with less power from the driver, lower gate-to-drain feedback capacitance, lower thermal impedance for higher switching frequencies.
  • Variable Low-Pass Filter - A low-pass filter is an electronic circuit that removes all the notes above the filter's frequency setting. You will use the Low-pass filter to primarily keep high notes out of your subwoofer(s).
  • High Level Inputs - Speaker level inputs are commonly referred to as high-level inputs. It will be used to connect the LOPRO10 to your factory radio or an aftermarket radio that does not have low-level (RCA) inputs.
  • Low-Level Inputs - Line level inputs (RCA inputs / low-level inputs) use RCA interconnect cables to link the LOPRO10 with the source unit. Most aftermarket radios have multiple pairs of RCA outputs that can connect to multiple amplifiers.
  • Variable Bass Boost - Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.
  • Specs – 15.5” x 11” x 3”. If you are short on space, this is a great solution for you. The combination of amplifier and subwoofer all into one, makes this ideal for spatially challenged vehicles. Weight: 13 lbs..
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Sound Storm Laboratories LOPRO10 10 Inch Powered Under Seat Car Audio Subwoofer - 1200 Watts Max Built-in Amplifier Low Profile Remote Subwoofer Control for Truck Boxes and Enclosures

  • Built-in Amplifier - With a MOSFET power supply you get improved switching speeds, better performance with less power from the driver, lower gate-to-drain feedback capacitance, lower thermal impedance for higher switching frequencies.
  • Variable Low-Pass Filter - A low-pass filter is an electronic circuit that removes all the notes above the filter's frequency setting. You will use the Low-pass filter to primarily keep high notes out of your subwoofer(s).
  • High Level Inputs - Speaker level inputs are commonly referred to as high-level inputs. It will be used to connect the LOPRO10 to your factory radio or an aftermarket radio that does not have low-level (RCA) inputs.
  • Low-Level Inputs - Line level inputs (RCA inputs / low-level inputs) use RCA interconnect cables to link the LOPRO10 with the source unit. Most aftermarket radios have multiple pairs of RCA outputs that can connect to multiple amplifiers.
  • Variable Bass Boost - Variable Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.
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Rockville Rock Shaker 10\ Inch Black 600w Powered Home Theater Subwoofer Sub

  • ...DF wood. (MDF wood sounds better and lasts longer than particle board), High-grade vinyl enclosure covering with a beautiful finish, The enclosure is built with the perfect air space to maximize sound quality and punch, The rear firing port is engineered for optimal sound.
  • Class “D” Amplifier Circuitry with Auto-Switching Power Supply, High-grade woofer with foam surround and paper cone, Woofer has a Y30 grade magnet, and 1.5” 4-layer voice coil, Distortion-Free Playback Even at Max Volume Listening! Very Clean Sound!, Enclosure is filled with fire resistant poly cotton, Detachable foam grill.
  • Inputs / Outputs / Controls: RCA line input, RCA line output, Speaker High level inputs, Speaker High level outputs, Volume control, Phase switch (0°-180°), Crossover Frequency control, Power switch, Standard IEC power cable included.
  • Specifications: Amplifier: Class D, Woofer Impedance: 4 Ohm, Signal to noise ratio: 85 dB (Maximum output with THD+1003c1%, A-weight), THD: 1%, INPUT sensitivity: 88dB +/- 2dB, Frequency Response: 20 Hz - 200 Hz, 600 Watts peak output, 300 Watts RMS output, Voltage: 110-240V, Product Dimensions in Inches: (W*H*D): 12.6'' x 15.5'' x 16.5'', Shipping Dimensions in Inches: (W*H*D): 15.7" x 19.7'' x 18.5'', Unit Weight: 20 LBS, S....
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Rockville Rock Shaker 10\\\ Inch Wood 600w Powered Home Theater Subwoofer Sub, Rock Shaker 10 Wood

  • ...DF wood. (MDF wood sounds better and lasts longer than particle board), High-grade vinyl enclosure covering with a beautiful finish, The enclosure is built with the perfect air space to maximize sound quality and punch, The rear firing port is engineered for optimal sound.
  • Class “D” Amplifier Circuitry with Auto-Switching Power Supply, High-grade woofer with foam surround and paper cone, Woofer has a Y30 grade magnet, and 1.5” 4-layer voice coil, Distortion-Free Playback Even at Max Volume Listening! Very Clean Sound!, Enclosure is filled with fire resistant poly cotton, Detachable foam grill.
  • Inputs / Outputs / Controls: RCA line input, RCA line output, Speaker High level inputs, Speaker High level outputs, Volume control, Phase switch (0°-180°), Crossover Frequency control, Power switch, Standard IEC power cable included.
  • Specifications: Amplifier: Class D, Woofer Impedance: 4 Ohm, Signal to noise ratio: 85 dB (Maximum output with THD+1003c1%, A-weight), THD: 1%, INPUT sensitivity: 88dB +/- 2dB, Frequency Response: 20 Hz - 200 Hz, 600 Watts peak output, 300 Watts RMS output, Voltage: 110-240V, Product Dimensions in Inches: (WxHxD): 12.6'' x 15.5'' x 16.5'', Shipping Dimensions in Inches: (WxHxD): 15.7" x 19.7'' x 18.5'', Unit Weight: 20 LBS, S....
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1W / 6W PLL FM Transmitter Radio Stereo Station Wireless Broadcast+TNC Antenna for Drive-in Church Supermarket School grey2

  • [Frequency Response] Transmission frequency can be set from within the range of 87 ~ 108MHz 6W high-low power-adjustable, the transmission distance of....
  • [Channel switching] switchable stereo, mono Designed with advanced modulation system and built-in PLL frequency, audio pre-emphasis, limiter, and....
  • [High-fidelity Bluetooth] you can connect wirelessly to mobile phones, tablets and other Bluetooth devices Good heat dissipation: using high-quality....
  • [PC control] connect your computer via micro USB interface, plus supporting intelligent broadcasting software, to achieve diversification unattended....
  • [Excellent Heat Dissipation: Aluminum alloy metal shell, good cooling effect, quiet fan With PC control, Intelligent Broadcast..
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JOYO Portable 10W Acoustic Mini Amp Stereo Headphone Output Small Carry Amplifier Combo for Acoustic Guitar & Ukulele MA-10A

  • JOYO MA-10 series features dual channel dedicated for the related instruments switching easily. MA-10A: Switchable Normal / Bright dual channel..
  • 5 inches customized full frequency speakers. with rated power of 10W (RMS), full frequency speakers dedicated for the related instruments..
  • High quality Aux In Jack for playing backing track, 3.5mm stereo headphone output Jack, ensuring subtleness of music and interference-free..
  • Different power supply modes, we can use the attached power adapter or 6xAA batteries, about 3hrs battery life with AA alkaline batteries. Innovative....
  • Compact and lightweight body, plus 2 hidden shoulder strap buckles on both sides of the amp for conveniently hanging the shoulder strap(not....
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