Reviews Frequency 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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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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RF Oscillator Module, VCO 515MHz-1150MHz Voltage Controlled RF Oscillator Frequency Source Broadband Oscillator Module

  • [Strong compatibility]:For Yaesu FT-817/857/897 and other models for temperature-compensated crystal components, fully compatible with the original TCXO-9..
  • [High stability]:he frequency is 22.625MHz, which can improve the stability of the machine after replacing the original crystal. It is superior to the original module in different environments..
  • [High cost performance]:The price is only 15% of the original module, and the cost performance is extremely high..
  • [Effect is remarkable]:Actual test the frequency of the crystal is observed with a high-precision frequency meter. The original crystal frequency is deflected with a fire-baked , but this temperature-compensated crystal has no obvious change, and the effect is remarkable..
  • [Simple operation]:Turn off the power of the machine, open the cover of the machine, find the position where the temperature compensation crystal is installed. You need to unplug the ordinary crystal of the machine, then insert it according to the stitching of the machine. After installation, you can start using it without any settings..
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FOCAL Alpha 80 Studio Monitor (Single)

  • General Size: Near-field System type: Active Configuration: 2-way Drivers Low-frequency driver: 8" Mid-frequency driver: Not applicable High-frequency driver: 1" Full-range driver: Not applicable Driver type: Polyglass Sound Frequency response: 35Hz - 22kHz Max peak SPL: 109 dB Amplifier class: AB Output power: 140W Onboard Features Input connectors: XLR, RCA Standby mode: Yes A.
  • The Focal Alpha 80 is a versatile studio monitor with quality components and design.
  • It serves beautifully in a variety of capacities, performing just as well with instrumental music as with electronic music.
  • This model comprises an 8" (21cm) woofer/ midrange speaker with a Polyglass cone loaded in a large laminar port associated witha 100W amplifier and a 1" (25mm) aluminum inverted dome tweeter (40W amplifier).
  • Alpha 80 has a frequency response of 35Hz to 22kHz (+/- 3dB).
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Ryan's DIY Dancing Slime!

  • High-fidelity Sound System – This DIY speakers kit with many components that are much more expensive high-end systems. Perfect as rear/side surround home theater speakers for a 5.1, 7.1 or 11.1 setup..
  • 3 Way Bookshelf Speakers - Adopts three-way fourth-order speaker system reverse-phase design, with a luxurious and elegant appearance, high-end components included easy to set up and more stable excellent performance..
  • Low Frequency - 6.5-inch large-diameter mid-bass unit L6-4R. Its diaphragm is made of all-black Kevlar fibre, an ultra-light and high-strength integrated composite material, a fatigue-resistant long-stroke rubber diaphragm folding ring, a highly compliant centering support piece, a unique magnetic circuit system with phase plug design, and a large magnetic steel drive unit..
  • The mid-range unit uses a professional DN Series soft dome mid-range unit, with a high-quality diaphragm coated on the outside with a special damping material, and an independent dome mid-range unit to avoid the mid-range defect caused by the connection of the two frequency bands. The sound is sweet, natural and smooth..
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MartinLogan Motion SLM X3 Ultra-Slim 3-Channel Passive Soundbar - Black

  • L-C-R soundbar, Slim design, Binding Posts: Push style.
  • High Frequency Driver: Three 1" x 1.4" Folded Motion Transducers with 5.25" x 1.75" diaphragm.
  • Low Frequency Drivers: Six 4" paper cone, sealed cabinet.
  • Components: Custom air core coil inductors, polyester film capacitors in series and low DF electrolytic capacitors in parallel, overall system thermal/current protection.
  • Frequency Response: 120–23,000 Hz ± 3 dB.
  • Dispersion: 80° x 80°, Sensitivity: 93 dB @ 2.83 volts/ meter.
  • Impedance: 4 Ohms. Compatible with 4, 6 or 8 Ohm rated amplifiers..
  • Crossover Frequency: 3,000 Hz (2-way design), Recommended Amplifier Power: 20–140 watts.
  • Dimensions with wall bracket (HxWxD): 6.3" x 48" x 2".
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KZ ZSE Dual Dynamic Driver Earphones Extra Bassy in-Ear Earbuds Headphones (Without Mic)

  • Professional Acoustic Design. Pick up one of high-pitched pronunciation driver+1 low frequency driver open-train double dynamic structure.Professional Acoustic Design. Pick up one of high-pitched pronunciation driver+1 low frequency driver open-train double dynamic structure..
  • Amazing Sound Quality. 99% of the current headsets can not meet the standard of 20-45 KHZ frequency width. It’s totally beyond your imagination. Independent bass frequency dynamic driver enhances general music administrative levels and lets every beat feel a strong bass..
  • Ergonomic and chic design. Transparent cavity is made of PC resin materials. Internal components can be clearly seen..
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Crystal Oscillator Frequency Counter Tester Meter, DIY 1Hz-50MHz Frequency Indicator Crystal Oscillator Tester Module Kit with 5 Digits Digital Tube Display Red

  • This is a frequency meter based on PIC microcontroller, with crystal vibration measurement function and programmable frequency settings..
  • With five-digit digital tube display, the measurement data display is intuitive and convenient..
  • All of them use direct-plug components. The circuit is simple, easy to make, easy to install and debug..
  • The measuring frequency range of this DIY frequency meter is 1Hz-50MHz, which can measure the oscillation frequency of most commonly used crystal oscillators..
  • Five-bit resolution (e.g. 0.0050kHz, 4.5765MHz, 11.059MHz) supports automatic range conversion..
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PRV AUDIO EQ7-15 7 Band Graphic Equalizer 15 Volt RCA Line-Level Output with Fader and Subwoofer Level Control for Car Audio

  • Fully Adjustable: Built unlike other EQs, ours focuses on the ability to give you the POWERFUL signal required to get the most out of your custom sound system..
  • Tailor Your Sound: Combining its high 20dB headroom capability with 15 volts outputs make this audio equalizer capable of high signal performance, ensuring that your amplifiers will get a clean, powerful signal for maximum performance..
  • Effortless Control: Graphic equalizers are quite simple on the EQ7-15 it features one control for each frequency band present. These knobs allow you to either cut down that particular frequency or boost it in the mix..
  • High Performance: All 7 Band knobs are designed for the best grip with a precision stop point at 0 db gain. Each adjustment allows a -12dB to +12db on each frequency point with a 20dB headroom, that is able to amplify the signal with high peak levels without any signal compression, or distortion..
  • Upgrade Today, Hear the Difference: Manufactured using some of the highest quality and most reliable electrical components, many with 1% tolerance components throughout..
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Brand New Speakers ft. Equipto

  • CURV cone technology for greater sound definition and higher output with increased protection from marine conditions.
  • Silk dome tweeter provides a smooth upper frequency response and increased efficiency for crystal-clear music reproduction.
  • Fully sealed crossover components provide full protection from the harsh marine environment and improved frequency response, for a detailed audio spectrum.
  • Perforated metal grilles for a timeless, elegantly styled finish to blend with the aesthetics of your boat.
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MartinLogan Motion 60XTi Floorstanding Speaker Gloss Black (Each)

  • High Frequency Transducer: 1.25" × 2.4" (3.2cm × 6.1cm) Folded Motion XT Transducer with 4.5" x 2.75" (11.4cm × 7cm) diaphragm.
  • Mid Frequency Transducer: 6.5” (16.5cm) aluminum cone with cast polymer basket. Sealed chamber format. Rigid structured dust cap to reduce cone break-up modes..
  • Low Frequency Transducer: Two 8” (20.3cm) aluminum cone with cast aluminum basket. Non-resonant asymmetrical chamber format. Rigid structured dust cap to reduce cone break-up modes..
  • Components: Custom air core coil and low DCR steel laminate inductors. Polypropylene film capacitors in series and low DF electrolytic capacitors in parallel. Tweeter thermal/current protection..
  • Inputs: Custom 5-way bi-wire tool-less binding posts.
  • Frequency Response: 35–25,000 Hz ±3dB, Recommended Amplifier Power: 20-400 watts per channel.
  • Horizontal Dispersion: 80°, Vertical Dispersion: 30°, Sensitivity: 94 dB/2.83 volts/meter.
  • Impedance: 4 Ohms Compatible with 4, 6, or 8 Ohm rated amplifiers..
  • Weight: 66 lbs., Dimensions: 48" x 11.4" x 14.4".
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MartinLogan Motion 60XTi Floorstanding Speaker Red Walnut (Each)

  • High Frequency Transducer: 1.25" × 2.4" (3.2cm × 6.1cm) Folded Motion XT Transducer with 4.5" x 2.75" (11.4cm × 7cm) diaphragm.
  • Mid Frequency Transducer: 6.5” (16.5cm) aluminum cone with cast polymer basket. Sealed chamber format. Rigid structured dust cap to reduce cone break-up modes..
  • Low Frequency Transducer: Two 8” (20.3cm) aluminum cone with cast aluminum basket. Non-resonant asymmetrical chamber format. Rigid structured dust cap to reduce cone break-up modes..
  • Components: Custom air core coil and low DCR steel laminate inductors. Polypropylene film capacitors in series and low DF electrolytic capacitors in parallel. Tweeter thermal/current protection..
  • Inputs: Custom 5-way bi-wire tool-less binding posts.
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MartinLogan Motion 60XTi Floorstanding Speaker Matte White (Each)

  • High Frequency Transducer: 1.25" × 2.4" (3.2cm × 6.1cm) Folded Motion XT Transducer with 4.5" x 2.75" (11.4cm × 7cm) diaphragm.
  • Mid Frequency Transducer: 6.5” (16.5cm) aluminum cone with cast polymer basket. Sealed chamber format. Rigid structured dust cap to reduce cone break-up modes..
  • Low Frequency Transducer: Two 8” (20.3cm) aluminum cone with cast aluminum basket. Non-resonant asymmetrical chamber format. Rigid structured dust cap to reduce cone break-up modes..
  • Components: Custom air core coil and low DCR steel laminate inductors. Polypropylene film capacitors in series and low DF electrolytic capacitors in parallel. Tweeter thermal/current protection..
  • Inputs: Custom 5-way bi-wire tool-less binding posts.
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