ReviewsWide Frequency

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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Eujgoov RF Module AD8317 Detector Logarithmic Amplifier AD8317 RF Power Meter 1M-10G Hz

Accurate RF Measurement: AD8317 detector logarithmic amplifier provides accurate RF measurement. The measurement accuracy is better than ±1 dB in a dynamic range greater than 50 dB, and a power controller with adjustable power amplifier or variable gain amplifier is provided at the output..
Wide Operating Frequency Range: The wide operating frequency range from 1M HZ to 10G Hz supports all cellular standards, broadband wireless standards and private dedicated systems in frequency bands..
Shielding Case: With shielding case and antireverse protection diode in the 3V to 5V power supply voltage range..
Sturdy & Durable: 1.6mm thick PCB double panel, sturdy and durable, long service life, large heat dissipation area, stable operation, long running time, easy to use, good performance, small size, easy to carry and store..
Working Temperature: AD8317 provides better accuracy, temperature stability, and 5 ns fast output response in the temperature range of 40 ℃ to + 85 ℃, and is used for RF burst detection at 125 MHz..

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Klipsch Heritage Series Heresy IV Floorstanding Speaker Pair in Natural Cherry

All-new K-702 midrange compression driver, featuring a polyimide diaphragm, for exceptional detail.
K-702 midrange is mated to the K-704 Tractrix horn for a wide coverage pattern.
K-107-TI titanium diaphragm high-frequency driver with an all-new wide dispersion phase plug for providing exceptionally even high-frequency dispersion.
All-new high fidelity network for truer to life sound, best-in-class efficiency, and power handling.

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Wireless Microphone System 8 Channel Microphones UHF 8 Handheld Mic Karaoke DJ Mic Karaoke System 8 Whole Metal Mic Karaoke System Church Speaking Conference Wedding Party

8-Channel Wireless Microphone Systems provide wide area signal range coverage with hassle-free operation. Wireless UHF audio transmission allows for....
The system base receiver features a fixed frequency signal design, independent adjustable channel volume controls, digital LCD displays with frequency....
8-channel wireless microphone with fixed frequency and long-range reliability of up to 350 feet over a wide line of sight.
Vocal Sound quality is loud and clear. ideal for church, small DJ KJ stage, birthday wedding or family party, conference, classrooms, small karaoke....
our company warranty department in IL and NY,offer 30 days return with no reason and three year free warranty After-sale service.

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ICQUANZX XR2206 High Precision Function Signal Generator DIY Kit Sine/Triangle/Square Output 1Hz-1MHz Adjustable Frequency Amplitude

High resolution, can generate sine/triangle/square waveforms..
Frequency adjustment features coarse tuning and fine tuning..
Wide power supply range, use 9-12V external power or 9V battery(NOT Included)..

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Sony WM-FS222 S2 Sports Walkman Stereo Cassette Player with FM/AM/TV and Weather Radio

AM/FM stereo tuner features large tuning scale with wide spacing between numerical markers for easy, precise frequency centering.
Wide band AM tuning with frequency up to 1710 kHz allows reception of all AM radio stations regulated by FCC in new, expanded AM band.
Anti-rolling mechanism for smooth tape playback.

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Bark Control Device, Upgraded Anti Barking Device with Effective 3 Adjustable Sensitivity and Frequency Levels, Ultrasonic Dog Bark Deterrent Pet Behavior Training

... bark control automatically emits high-pitched sounds that only dogs can hear. Automatically sense the sound of the dog, once the dog stops barking, the ultrasonic barking control automatically stops emitting ultrasonic waves..
【 & 】: Ultrasounds do not interfere or harm humans because humans cannot hear these frequency bands, but dogs are sensitive to these ultrasounds. Different dogs may be sensitive to ultrasound in different frequency bands. Please turn the knob to test different frequency bands for best results. If the dog is hard of hearing or aggressive, the device may not work as expected..
【】: Ultrasonic dog bark controls come in 3 adjustable sensitivity and frequency levels (15-30 KHZ, suitable for large, playful dogs.
30Khz suitable for small dogs) to help you choose different waves and handle different dog barks easily. Adjust the frequency of training each week to maintain the results of training. The 33 ft (10 m) wide control range is suitable for stopping the neighbor's dog from barking at you and your family..
【】: Ultrasonic penetration is 33ft, covering both indoor and outdoor areas. Compared to traditional dog trainers, it completely frees your hands. You can easily train your dog's behavior b....

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VOCOPRO DIGITAL- ACAPELLA -16 Sixteen Channel UHF Hybrid Wireless Handheld Microphone System

Sixteen wireless handheld microphones each channel has a Dedicated XLR output and volume control.
Stable analog transmission via 900MHz frequency band 24-bit digital Technology delivers a clean, professional quality signal.
Individual digital microphone IDs eliminates channel Cross-Talk wide frequency response (50 - 20, 000 Hz) ensures natural sounding vocals.
Sixteen balanced XLR outputs available four ¼” mixed output Available.
Brackets included for mounting in a rack case Two different frequency sets available.
A total of 16 frequencies receiver Dimensions (W/o brackets attached): 17. 00”W x 1. 750”H x 5. 25”D.

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VOCOPRO DIGITAL-ACAPELLA-8 Eight Channel UHF Wireless Handheld Microphone System

Eight wireless handheld microphones each channel has a Dedicated XLR output and volume control.
Stable analog transmission via 900MHz frequency band 24-bit digital Technology delivers a clean, professional quality signal.
Individual digital microphone IDs eliminates channel Cross-Talk wide frequency response (50 - 20, 000 Hz) ensures natural sounding vocals.
Eight balanced XLR outputs available two ¼” mixed outputs available.
Brackets included for mounting in a rack case Two different frequency sets available.
A total of 16 frequencies receiver Dimensions (W/o brackets attached): 17.00”W x 1.750”H x 5.25”D.

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BaoFeng BF-F8+ Dual-Band 136-174/400-520 MHz Two-Way Radio Transceiver- Black

Frequency Range: 65-108 MHz(Only commercial FM radio reception) VHF: 136-174 MHz(Rx/Tx). UHF: 400-520 MHz(Rx/Tx), Broad (Wide) / Narrowband (Narrow), High power / low (5W/1W), selectable..
Selectable Frequency Step/2.5/5/6.25/10/12.5/25 kHz, Function "VOX" (Voice Operated Transmission), "OFFSET" (frequency offset for repeater access)..
Dual-band handheld transceiver with display function menu on the display "LCD". Function Busy Channel Lock "BCLO"..
Helpful BaoFeng Guides and Programming Tips are available..

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Recoil VC-R100 100W Impedance Matching Wall Mount Volume Control Knob, Flush in-Wall Plate Rotary Knob for Hi-Fi Home Audio, for Dedicated Audio Zone Volume Adjustment, White Ivory Plates Included

HIGH POWER: The VC-R100 is rated at 100 Watts per channel with minimal bass roll-off. It includes adjustable jumpers to add up to eight pairs of 8-ohm speakers simultaneously..
ROTARY KNOB ADJUSTMENT: This 12-step linear rotary-style knob controls allow you to adjust the volume of a pair of speakers independently within various areas of your home, office or business applications..
MULTI SPEAKERS CONNECTION: Add up to 8 pair of speakers throughout your house and control them all from this wall plate volume control. It maintains the full hi-fi audio frequency response with no low frequency roll-off.
WIDE FREQUENCY RESPONSE: Recoil VC-R100 controls your speakers to deliver a rich quality sound. This in-wall volume control is designed for wide frequency response 20Hz – 20kHz range reproducing high-fidelity sound.
IN-WALL/WALL PLATE: This whole-house volume control is a universal standard decorative flush in-wall or wall mount installation finishing plate. It includes white and ivory plates, and other installation accessories..

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