Best Frequency Control Components

Ranjaner 1Hz-50MHz Frequency Counter Kit, DIY Module Board for Oscillator, Crystal Measure Frequency Meter Accessories

You can use the universal USB 5V interface power supply, can also use an external DC power supply or 9V battery..
The number of components is small, all straight-line components, installation and commissioning simple..
Addition and subtraction frequency settings for the measurement of radio transceivers and other equipment..
You can select the power saving mode, if the frequency is not obvious changes within 15 seconds automatically turn off the display..
Measurable frequency range 1 Hz -50 MHz. Can measure the oscillation frequency of most commonly used crystal..

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Adam Audio T5V Active Nearfield Monitor (2-Pack) Bundle and Knox Gear 25-Feet XLR Male to XLR Female Microphone Cable (2-Pack)

...Outputs / Controls: Volume control. Bass/Treble Control -4dB to 4dB (allows you to adjust high and low frequency independently). 1/4" and XLR combo input jack. High Speed USB jack. RCA input. 3.5mm Headphone output..
Details: Certification: CE and RoHS Compliant. Amplifier: Class D, very efficient amplifier with top components! (ADI--ADAU1701, TI--TPA3116, SMPS). System Impedance: Tweeter 6 Ohm. Woofer 4 Ohm..
Signal to noise ratio: 90dB (Maximum output with THD+1003c1%, A-weight). Max SPL: 100dB @ 1w/1m. THD: 0.10%. Frequency Response: 50Hz - 20 kHz. 250 Watts peak output per pair. 125 Watt RMS output per pair..
Each speaker produces 125 watts peak and 62.5 watts RMS. Input voltage: 120V. Components: 3/4" silk dome tweeter and 5.25" woofer with rubber surrounds and polypropylene cone. Product Size (Single): (W*H*D): 7.4'' x 11.34'' x 9.76''..
Shipping Dimensions: (W*H*D): 24.1''x 13.54''x 10.7''. Net Weight (Pair): 15.4 LBS. Shipping Weight (Pair): 18.37 LBS. Includes speaker linking cable and power plug. Input Impedance (Ohms): 10 K Ohm Balanced. System Volume: (-30dB to +6dB).

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VFD Single to 3 Phase, 4kW 220V AC Single-phase Variable Frequency Drive Inverter, VFD Speed Controller Inverter for 3-phase Motor

Output phase: three-phase.VFD Dimension: 100 x 140 x 150 mm (L x W x H)..
The phase converter features low noise and low electromagnetic interference, through the optimization of PWM control technology and electromagnetic compatibility of the overall design. There is enough space for heat dissipation between electronic components, and the shell adopts porous heat dissipation..
【Smart Digital Display】 Adopting user-friendly keyboard design & reasonable layout, easy to operate.
digital display, intuitive and clear. The detachable design is convenient for remote control..
【Application Motor】CNC router, CNC machine, milling machine, drilling machine, wingding machine, mixer, extruder, slitter, winder, compressor, ventilator, pump, grinder, conveyor, elevator, centrifuger and other speed control machines..
【Importent Note】 No support external resistor(the function needs to be customized by notifying the seller before purchase),If your motor is heavy load, pls choose a higher power level VFD or contact sales for model selection suggestion..

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Sonne's Organic Foods - Sonne's No. 7 Detoxification, 32 fl oz Liquid

...(referenced to full 4 ohm power) -89 2Dba Frequency response 49Hz to 14 9 kHz Frequency response VS thd+m (worst case across normal bandwidth 1W @ 8 ohms 0 89% weight 22 7lbs Dimensions 19” x 16” x 4” inches.
Applications restaurant Bar Café School Lounge Home (multi-zone multi-room) office Warehouse.

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Shure KSM8/N Dualdyne Vocal Microphone

Patented cartridge design features two ultra-thin diaphragms (one active and one passive) and a groundbreaking inverted airflow system.
Exceptional control of proximity effect greatly increases working distance without on-axis coloration.
Neutral mid- and high-frequency reproduction due to controlled proximity effect results in the most natural-sounding dynamic microphone available.
Neodymium magnet resides in a micro-injection mold of aerospace SoftMag material, maximizing the magnetic field for the highest output level.
Re-imagined Shure Pumping Pneumatic Shock Mount features tuned cavities, specific resistances, and precisely machined components fully integrated into the cartridge’s acoustic properties, delivering exceptional rejection of handling noise without any loss of low-frequency response.
Patent-pending Diaphragm Stabilization System technology protects and stabilizes the active diaphragm from unwanted movement from plosives or impact.
Dent-resistant, hardened carbon-steel grille design lined with hydrophobic woven fabric provides exceptional water, plosive and wind protection.

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Rockville CAR-EQ-Oke Car Audio 7 Band Equalizer w Bluetooth + Mic Input Karaoke

Features: Rockville CAR-EQ-OKE 1/2 Din 7 Band Car Audio Equalizer EQ w/ Microphone Input, Echo and Bluetooth, Bluetooth audio streaming from any smartphone or other Bluetooth-enabled device.
7 adjustable bands of equalization (50Hz, 125Hz, 315Hz, 750Hz, 2. 2KHz, 6KHz and 12KHz), Each band is adjustable from -12dB to +12dB, Built in crossover, Subwoofer level controls.
Includes mounting brackets and screws for easy installation, Amazing quality with low distortion (Built with top quality components), Frequency response: 20Hz TO 20KHz +/- 1dB, S/N Ratio: 95 dB, Crossover Roll-Off: 12dB per octave.
Input impedance: 10K, Input sensitivity: 200mv per channel >7V, THD: 0. 01%, Input: 12V, Output: 12V, Power requirement: 11-16V DC, Unit dimensions in inches: 7. 08 x 5. 51 1. 26.
7. 315 Hz control (+ or = 12 dB), 8. 750 Hz control (+ or = 12 dB), 9. 2. 2 KHz control (+ or = 12 dB), 10. 6 KHz control (+ or = 12 dB), 11. 12 KHz control (+ or = 12 dB), 12. Microphone volume control, 13. Microphone echo control.

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KOOBOOK 1Set 1Hz-50MHz Frequency Counter Meter Crystal Oscillator Digital Tester Meter DIY Kit 5-Digital LED Display

This is a PIC microcontroller based on the frequency meter, with a crystal measurement function and programmable addition and subtraction frequency settings..
Five digital display, easy and intuitive, all use of in-line components, the circuit is simple and easy to produce..
You need to solder and assemble by yourself, all the components are directly inserted, and the wire is printed correctly according to the PCB. After welding, the signal is input with the standard signal source, and the yellow adjustable capacitor is adjusted to make the display value equal to the signal frequency..
The power supply can use a USB to 3.5mm power cable, or you can directly input a 5-9V DC power supply at the - and + pads..
It can measure the frequency range from 1 Hz to 50 megahertz (1Hz-50MHz), can measure the oscillation frequency of most common crystal oscillators, and measure equipment such as radio transceivers..

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JBL SUBBP12AM - 12” amplified 12” Subwoofer with Sub Level Control

powered polypropylene subwoofer with built-in amplifier that matches the woofer performance at 150W RMS or 450W Peak..
Slipstream port eliminates port noise and provides distortion-free bass at high output levels.
Included components: One SUBBP12AM powered Subwoofer/enclosure, owner's manual and remote control.

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2022 New Hi-Fi TWS-Earbuds – Touch-Control Wireless Mini Bluetooth Headphones, Insensible Wearing Earphones, with Cr-ystal Clear Calls & 360° Stereo Sound, Intelligent Noise

【Powerful features】High quality components, fast response and high fi-delity Res-tore Music: high frequency is bright, medium frequency is full, low frequency is thick and elastic. Touch-Control design, easy to use, phone calls and control music play by one button. deal for in car calling and friends chatting, play games or working use..
【Cr-ystal Clear Calls & 360° Stereo Sound】There are no dead spots in the listening position, 360° stereo sound effects, almost no delayexperence, and the live broadcast of the battlefield is synchronized to seize the fighter. With ambient noise cancellation algorithms thenoise around you is reduced. So you can hear clearly calls even in noisy environments.
【Smart To-uch Control & Fast Pairing】 During use, you can control the phone by touching any earbuds, such as music sw-itch, volume adju-stment, call, voice assistant, etc., without adjusting-thrqugh the phone. The Bluetooth headset is paired after it is taken out of the charging case for the first time, and the n-ext time the headset is taken out, it will automatically conpeet with the iast paiked device..
【Ergonomic Design】Suitable for both ears, Every surface that touches your ear is made of liquid siliconeinstead of hard plastic. mini design make ....

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