ReviewsThe Low Frequency

1pcs/lot Brand CD4HC7046AE 74HC7046 DIP-16 Phase-Locked Loop

...gnal-input amplifier and a common comparator input..
Very low power consumption: 70 µW (typ.) at VCO, VCO inhibit control for ON-OFF keying and ultra-low standby power consumption fo = 10 kHz, VDD = 5 V, Source-follower output of VCO control input (Demod. output), 100% tested for quiescent current at 20 V.
Operating frequency range up to 1.4 MHz (typ.) at VDD = 10 V, RI = 5 k, High VCO linearity: 003c1% (typ.) at VDD = 10 V, 5-V, 10-V, and 15-V parametric ratings.
Low frequency drift: 0.04%/°C (typ.) at VDD = 10 V, Choice of two phase comparators: Exclusive-OR network (I) Edge-controlled memory network with phase-pulse output for lock indication (II), Zener diode to assist supply regulation, Standardized, symmetrical output characteristics, Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices".
A Versatile Building Block for Micropower Digital and Analog Applications, Example Applications: FM demodulator and modulator, Frequency synthesis and multiplication, Frequency discriminator, Data synchronization, Voltage-to-frequency conversion, Tone decoding, FSK - Modems, Signal conditioning,.

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AD831 High Frequency Transducer RF Mixer Module 500MHz Bandwidth Mixing Down Mixing Dual Balanced Mixer Single Chip Radio Frequency Converter -10dBm

The AD831 is a low distortion, wide dynamic range, single chip mixer, suitable for HF and VHF Receiver RF-IF frequency, second mixer in DMR base station, DC-baseband conversion, quadrature modulation and demodulation, and ultrasound imaging, frequency move detection and other applications.
The AD831 has provide +24 dBm third-order intermodulation intercept point, realization of -10 dBm LO power, without the need for a high power LO drive.
There is no corresponding shielding and isolation problems, therefore, compared with the passive mixer to improve the performance of the system, reduce the system cost.
The mixer is designed as a single power supply, RF, IF and LO ports with DC isolation capacitor, easy to use.
The amplifier has low DC offset characteristics, so it can be used in DC-baseband frequency conversion and quadrature amplitude demodulation.

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ButtKicker BK-LFE Low Frequency Effects System

Offers true infrasonic, or low-frequency response with a resonant frequency of 9 Hz.
Attaches to seats and floors, and sends low-frequency sound directly into the listener's body.
Accurately reproduce the feeling range of many natural and man-made sounds.
Power handling ranges from a minimum of 400 watts to a 1,500-watt maximum.
Measures 5.375 x 5.5 x 5.375 inches (WxHxD), and weighs 11 pounds.

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Headphones in the Ears [Explicit]

▶ 【3BA 1DD, Good Sound Quality】 It’s time for wired earbuds with microphones with unclear sound quality to step aside. CCZ Warriors wired ear buds earbuds' low frequency and high frequency are excellent, showing a balanced and natural trend. Low frequency is smooth and delicate, full of atmosphere, high frequency is bright and cheerful. It is suitable for people who pursue not only low frequency but also high frequency, resolution and texture..
▶ 【3.5mm plug, Wide Compatible】 If you’re looking for an inear monitor earphones for devices with 3.5mm jack, then our premium wired earbuds are the smarter choice. With a 3.5mm jack that’s compatible with standard headphone ports, CCZ warrior in ear earbuds wired are suitable for almost any device, including iPhone, iPad, iPod, Mac, iMac, PS5/PS4, MP3/MP4 Player and more..
▶ 【The Comforts You Were Looking for】These plug in earphones earbuds feature silicone ear tips to prevent them falling out when training or running. Wrap around ear design keeps earbuds from slipping out while working out. The flexible earhook wire is soft and thin. You can hardly feel them. perfect for sports, allowing you to enjoy....

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Juried Engineering CD4046BE CD4046B CD4046 CMOS Micropower Phase-Locked Loop Breadboard-Friendly IC DIP-16 (Pack of 5)

...gnal-input amplifier and a common comparator input..
Very low power consumption: 70 µW (typ.) at VCO, VCO inhibit control for ON-OFF keying and ultra-low standby power consumption fo = 10 kHz, VDD = 5 V, Source-follower output of VCO control input (Demod. output), 100% tested for quiescent current at 20 V.
Operating frequency range up to 1.4 MHz (typ.) at VDD = 10 V, RI = 5 k, High VCO linearity: 003c1% (typ.) at VDD = 10 V, 5-V, 10-V, and 15-V parametric ratings.
Low frequency drift: 0.04%/°C (typ.) at VDD = 10 V, Choice of two phase comparators: Exclusive-OR network (I) Edge-controlled memory network with phase-pulse output for lock indication (II), Zener diode to assist supply regulation, Standardized, symmetrical output characteristics, Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices".
A Versatile Building Block for Micropower Digital and Analog Applications, Example Applications: FM demodulator and modulator, Frequency synthesis and multiplication, Frequency discriminator, Data synchronization, Voltage-to-frequency conversion, Tone decoding, FSK - Modems, Signal conditioning,.

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Juried Engineering CD4046BE CD4046B CD4046 CMOS Micropower Phase-Locked Loop Breadboard-Friendly IC DIP-16 (Pack of 10)

...gnal-input amplifier and a common comparator input..
Very low power consumption: 70 µW (typ.) at VCO, VCO inhibit control for ON-OFF keying and ultra-low standby power consumption fo = 10 kHz, VDD = 5 V, Source-follower output of VCO control input (Demod. output), 100% tested for quiescent current at 20 V.
Operating frequency range up to 1.4 MHz (typ.) at VDD = 10 V, RI = 5 k, High VCO linearity: 003c1% (typ.) at VDD = 10 V, 5-V, 10-V, and 15-V parametric ratings.
Low frequency drift: 0.04%/°C (typ.) at VDD = 10 V, Choice of two phase comparators: Exclusive-OR network (I) Edge-controlled memory network with phase-pulse output for lock indication (II), Zener diode to assist supply regulation, Standardized, symmetrical output characteristics, Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices".
A Versatile Building Block for Micropower Digital and Analog Applications, Example Applications: FM demodulator and modulator, Frequency synthesis and multiplication, Frequency discriminator, Data synchronization, Voltage-to-frequency conversion, Tone decoding, FSK - Modems, Signal conditioning,.

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LANTRO JS RF WideBand Amplifier 433MHz 22dB High Gain Low Noise LNA Amplifier

【Product Parameters】- Working Voltage: 3---5V.
Protect-----This strong heavy duty tool bag can protect your tools from water and dust.
【Scope of Application】- The product can be applied to various RF receiving front ends, used for shortwave, FM broadcasting, remote control receivers, cable TV signal amplifiers and other RF signal amplifications that require low noise.
【Excellent Performance】-The radio frequency amplifier is made of high-quality electronic components and has the advantages of high gain, low noise figure, etc.
【Low Noise】- The noise factor is as low and 0.55dB, which is quite small.

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KRK 5 Classic Studio Monitor

High/Low-frequency controls contour your sound for environment, preference, and music style, and the custom bi-amped, class A/B amp offers large headroom and low distortion.
Soft-dome tweeter with optimized waveguide provides smooth, pristine and articulate highs up to 35kHz.
The low-resonance enclosure minimizes distortion and color, and the lightweight, glass-aramid composite woofer delivers clear midrange and tight bass.
Flat Low Frequency Adjustment adding versatility and improved accuracy for mixes that translate in different environments.
Superior low-end extension with optional setting of plus-2dB KRK Bass Boost acclaimed by music creators worldwide.

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Martin Logan - ElectroMotion ESL - Hybrid Electrostatic - Each - Black

High frequency transducer: XStat CLS electrostatic transducer.
Low frequency driver : 8" high excursion, high-rigidity doped fiber cone with extended throw drive assembly, non-resonance asymmetrical chamber format.
MicroPerf panel is housed within a radical aluminum and composite AirFrame.
Proprietary Vojtko topology filter utilizing custom air core coil and low DCR steel laminate inductors, polyester film capacitors in series, and low DF electrolytic capacitors in parallel.
Recommended amplifier power: 20-300 watts per channel, Crossover frequency: 500 Hz.
Convenient push-style speaker terminals for bare wires, pins, or bananas, Sturdy, 1/4-20 ETC spikes.
Frequency response: 42 - 22,000 Hz ±3 dB, Dispersion: 30-degrees x 34" line source, Sensitivity: 91 dB/2.83 volts/meter.
Nominal Impedance: 6 Ohms, 1.6 @ 20 kHz, compatible with 4, 6, or 8 ohm rated amplifiers.
Weight: 35.5 lbs. each, Dimensions: 52.1" high, 9" wide, 16.3" deep.

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MartinLogan ElectroMotion ESL Electrostatic Floorstanding Loudspeaker - Each (Gloss Black)

High frequency transducer: XStat CLS electrostatic transducer.
Low frequency driver : 8" high excursion, high-rigidity doped fiber cone with extended throw drive assembly, non-resonance asymmetrical chamber format.
MicroPerf panel is housed within a radical aluminum and composite AirFrame.
129 square inches of sound radiating surface on both the front and back.
Proprietary Vojtko topology filter utilizing custom air core coil and low DCR steel laminate inductors, polyester film capacitors in series, and low DF electrolytic capacitors in parallel.
Frequency response: 42 - 22,000 Hz ±3 dB, Sensitivity: 91 dB/2.83 volts/meter.
Recommended amplifier power: 20-300 watts per channel.
Dimensions: 52.1" high, 9" wide, 16.3" deep.

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Schumann Resonance Generator,Wood 7.83hz Pulse Generator Low Frequency Ambience Generator Mute Schumann Wave Generator with 110V-240V Ac Power Power Supply…

Stable Schumann frequency Generator:7.83HZ Schumann Wave Ultra-low Frequency Pulse Generator,It emits the ultra low frequency which provides a stable "ambience" within which you listen to your stereo with more perceived clarity.
Schumann Resonances&Earth's frequency:The Earth behaves like a gigantic electric circuit. Its electromagnetic field surrounds and protects all living things with a natural frequency pulsation of 7.83 hertz on average — the so-called “Schumann resonance,” named after physicist Dr. Winfried Otto Schumann.
How does the Schumann resonance affect US? Being in the Schumann wave ambience can reduce anxiety, insomnia, and reduce the negative impact of EMF on the body..
quiet Schumann frequency Generator：There is no noise at work, you will not even notice its “existence”.
With AC power adapter: it can be used in sleep and work when plugged in. In order to achieve better results, it is recommended to stay away from electromagnetic radiation equipment when using.

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