Reviews Low frequency Range

Hisonic HM800 Dynamic Microphone

  • Low impedance element with extremely light weight diaphragm for excellent transient response and wide frequency range with exceptional detail &....
  • Twin AlNiCo magnet elements precisely constructed in a housing having wide dynamic range for smoothly reproducing clear & distortion-free sound.
  • Low-frequency rolloff & extended high-frequency response capture the original vocal sound with extraordinary clarity..
  • Rugged and durable Nickel finished Zinc casing..
  • Tight hypercardioid pattern stays uniform & symmetrical throughout entire frequency range to minimize feedback..
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Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer+3 Way Mono Crossover

  • ...z effective equalization range. Constant Q filters. Selectable 6dB or 12dB cut or boost range.
  • Output level LEDs (-10 to +17 dB). Bypass switch with status LED. Ground lift switch. Balanced XLR input/output. Subwoofer out. Channels: 2 (stereo). Connectors: XLR balanced inputs and outputs. Bands: 31 per channel. Frequency Centers: 20 Hz, 25 Hz, 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 Hz, 100 Hz, 125 Hz, 160 Hz, 200 Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz, 630 Hz, 800 Hz, 1 kHz, 1.25 kHz, 1.5 kHz, 2 kHz, 2.5 kHz, 3.15 kHz, 4 kHz, 5 kHz, 6.3 kHz, 8 kHz, 10 kHz, 12.5 kHz, 16 kHz, 20 kHz.
  • Control Range: Selectable +/-12dB 0r +/-6dB. Input Impedance: 50k ohms. Output Impedance: 600 ohms. Maximum Output Level: +21dB. Level Control: +/- 10 dB. Signal to Noise: >93 dB. Distortion: 0.005%. Roll-off filters: 18dB/octave, Butterworth. Power Consumption: 15 watts. Weight Unpacked: 7.00 lbs. Weight Packed: 9 lbs. Width Packed: 5.87". Height Packed: 20. 5". Depth Packed: 9.62". Features of RX230: RockvilIe RX230 2-way Stereo / 3-way Mono rack mountable crossover.
  • Ability to mix 2 channels output. 24dB/Octave filters. Mute switches. Channel Gain Control: 0 to +12 dB. Low Frequency Level Control: -to +6 dB. High Frequency Level Control: -to +6 dB. Low Frequency to High Frequen....
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KWD808-I Stimulator Machine 50Hz Electric Acupuncture Stimulator Massager Machine 6 Channels Outputs Patch Massager Care Device 100-240V Pulse Electrotherapy Acupuncture Instrument

  • ✅【SPECIFICATIONS】Output pulse circuit: 6 outputs. Input power: .
  • The fuse is slow-blow at 0.5A. Output pulse frequency: 1.2Hz~55Hz, the error range is ±30% continuously adjustable. Output pulse width: 0.6±0.15ms. Power supply voltage scope: AC 110~240V, 50Hz.
  • DC 9V+5%, 9V-10%. Atmospheric pressure range: 500hpa to 1060 hpa. Size: 21.7cmx16.7cmx7.5cm, weight: 1390g..
  • ✅【ADJUSTABLE FREQUENCY INTENSITY】The frequency and intensity can be adjusted. Adjustable sensitivity probe point locator. 6 outputs, plus 1 detection socket..
  • ✅【5 KINDS OF PULSE WAVES】There are 5 kinds of pulse waves to choose from: continuous wave, dense dispersive wave, discontinuous wave, ripple wave, breathing wave, with a wide range of functions..
  • ✅【OPERATION OUTPUT PROTECTION】The device outputs pulses, and the treatment is very safe and efficient. A wave with low voltage, low frequency, and the same frequency range as the human body. It has the characteristics of low voltage, low frequency, two-way, etc. The operation output protection device is particularly safe to operate and safe to use..
  • ✅【PROFESSIONAL SERVICE】If you have any questions or if you receive unqualified or damaged products, please contact us timely and we will handle them immediat....
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Ue Super.fi 5 Eb Earphns

  • High Frequency Driver: Precision balanced armature delivers clear crisp high tonal range.
  • Low Frequency Driver: 13.5mm Diaphragm delivers deep distortion free low tonal range.
  • Audio Filters: Shapes the sound for maximum detail.
  • Passive Crossover: Directs music to high and low range speakers for precise audio reproduction.
  • Professional Construction: Small form factor lightweight durable design made for active lifestyles.
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Boss Up (feat. Teddythelegacy) [Explicit]

  • ...ubwoofer(s). You now have the ability to connect more subwoofers to take advantage of the extra power.
  • Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers.
  • Variable Low-Pass Crossover - Subwoofers reproduce sound based on a number of different low-range frequencies. You can set exact sound specifications for the bass frequency reproduction.
  • Fixed High-Pass Crossover - Speakers reproduce sound based on high, low or mid-range frequencies. The High-Pass Crossover gears specifically towards “highs” in all size speakers including mid ranges and tweeters.
  • Variable Bass Boost - With Variable Bass Boost you have the control of exactly how much BASS you want to pump out to your subwoofer(s).
  • Low & High Level Inputs - A low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers.
  • Specs - Dimensions: 16.22” x 6.89” x 2.22”, Weight: 7.32 lbs., Speaker Impedance: 2 Ohm, THD @ RMS Output: 0.01%, S/N Ratio: 90 dB, Frequency Response: 10 Hz to 30 kHz, Fuse Quantity: 2 35 Amp ATO Blade.
  • Warranty - BOSS Audio Systems provides a powerful 6 year Platinum Online Dealer Warranty so....
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Two Way Condenser Studio Microphone

  • Excellent Sound Quality: Two-way microphone capsule structure realizes both broad high range and resonant mid-low range and gives great vocal presence. Excellent Sound Quality: Two-way microphone capsule structure realizes both broad high range and resonant mid-low range and gives great vocal presence..
  • Noise Elimination Construction: Two-part metallic body structure succeeded from C-800G microphone prevents acoustic vibration resulting in low noise and clear sound..
  • Wide Frequency Response: The C-100 microphone has a broad frequency response (20 Hz to 50kHz) and provides superb sound reproduction quality for High-Resolution Audio..
  • Switchable Polar Patterns: The C-100 microphone features switchable uni-directional, omni-directional and Figure-8 ploar patterns for various recording applications..
  • Pad Switch: A -10dB pad switch provides added headroom and minimizes distortion caused by transient peaks..
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Halt! Dog Repellent 1.5 oz

  • Dog barking deterrent devices is more effective and human dogs can hear a wider frequency range from 15hz to 120khz this bark control device emits ultrasonic sound at 25khz which is above the hearing range of humans but will easily grab dogs attention and make them feel uncomfortable press the button to stop your dogs bad behaviors like barking digging fighting and more help them understand that their bad behaviors will cause an uncomfortable experience.
  • 3 different frequency wave to avoid dogs getting used to simple frequency this ultrasonic dog bark deterrent can emit ultrasonic sounds with 3 different sound waves stable frequency undulating frequency and irregular frequency sound waves you can choose the different waves to void dogs getting used to simple frequency and it can make it reduce the training effect on the simple waves for a long time.
  • Recharge dog barking control device with low power light Indicator this sonic bark deterrent usb rechargeable 300mah battery full charge in 1 to 2 hours for about 12 days of regular use saves you the endless hassle and invest in batteries when low power push the function button the indicator will be red.
  • Convenient outdoor use of 16.5 feet controls range with dog barking deterrent devices just fits nicely in....
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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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Make 1 Million Dollars

  • SUPERIOR SOUND. High-current EI transformer makes sure that sound quality doesn't suffer. Large custom audio capacitors and a discrete output stage..
  • AMP TECHNOLOGY. Wide Range Amplification Technology delivers high-current power stability via large custom capacitors, while low-NFB amps capture depth and spatiality for a wide frequency spectrum with low distortion..
  • AUTHENTIC AUDIO. Direct Mode bypasses tone and PM Bass circuitries. In combination with a refined amp circuit design, signal-pathlengths have been significantly reduced in comparison to the A-9010 for even more accurate and faithful sound..
  • BASS BOOST. Phase Matching Bass Boost eliminates phase-shift between low- and mid-range frequency bands. Bass response is enhanced without compromising vocal clarity, which is especially useful when playing music at low volumes..
  • FEATURES. 50 W + 50 W (4 ohms, 20 hz–20 kHz, 0.9% THD, 2-ch Driven, FTC). Remote controller..
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Rockville Quad UHF 4 Wireless Handheld Microphone System w/LCD Display (rwm4401uh)

  • Rockville rwm4401uh UHF wireless (4) handheld microphone system with LCD display.
  • High performance wireless hand held microphone system. Includes rwm4401uh transmitter with (4) hand Held, high sensitivity, unidirectional, wireless cardioid microphones. Professional rack mount design with LCD displays. Color coded microphones. Rack mountable rugged metal housing mic receiver. Comfortable ergonomic composite microphone construction. Low power consumption for longer battery life.
  • Featuring a dual filter design to limit feedback and interference. Individual microphone volume Control. Color coded microphones. Comfortable ergonomic composite microphone construction. Low power consumption for longer battery life. Ultra signal stability minimizes audio artifacts. Operating range: 300´ – 400´(indoor), 250´ – 350´(outdoor). channel: four channel. Frequency range: 467-490.
  • Frequency stability: 0.005%. Modulation Mode: UHF. Frequency response: 50hz-15khz(3 dB). dynamic range: 110dB. S/N: 90dB. T.H.D: < 0.1%(1Khz). audio output jack: XLR balance & 1/4" Unbalanced. Power voltage: ac110v-240v 50/60Hz. Operating temperature: 14°f-122°f. Mic battery Operating Time: up to 10 hours.
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Rockville RWM-4US Quad Wireless UHF 4 Microphone System w/Adjustable Frequency

  • Rockville RWM-4US Quad Wireless UHF 4 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. (4) 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 4 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 80 total different channels on this system 20 unique frequencies per mic). Ergonomic metal microphones are extremely high quality and have a nice weight and feel to it. Individual XLR outputs for each microphone to send each microphone to their own mixer channel. XLR and mix output to send all 4 mics to one mixer channel..
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BLAUPUNKT AMP4000D 4000W Max 1-CH Monoblock Class D Stereo Car Audio Amplifier

  • ... have the ability to connect more subwoofers to take advantage of the extra power.
  • Variable Bass Boost - Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.
  • Variable Subsonic Filter - To prevent your subwoofer(s) from bottoming out, the variable subsonic filter filters out frequencies below the subwoofer(s) specified low frequency limits and allows the driver to reach a maximum safe excursion.
  • Variable Low-Pass Crossover - Subwoofers reproduce sound based on a number of different low-range frequencies. You can set exact sound specifications for the bass frequency reproduction.
  • Specs - Dimensions: 15” x 10” x 2.4”, Weight: 11.2 lbs..
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Rockville RWM1202VH VHF Wireless Dual HandHeld Microphone System/Metal Receiver

  • ...held mics at once. Individual microphone volume controls. Rugged metal housing. Comfortable ergonomic composite microphone construction. Low power consumption for longer battery life..
  • System: Operating Range: 100´-200´(indoor), 65´-165´(outdoor). Channel: Two Channel. Frequency Range: 170MHz - 260MHz. Frequency Response: 80MHz-12000MHz. Frequency Width: 32Mhz. Dynamic Range: 110dB. Operating Temp: 14°F – 122°F. Oscillation Mode: Quartz Crystal. Frequency Stability: ±0.005%. Modulation Mode: VHF.Frequency Response: 80Hz – 8 KHz (±3 dB). Harmonic Radiation :< 63dBm. S/N: 60dB. RF Output Power: 10mW. Power Voltage: AC110V/ 220V - 50/60Hz..
  • Mic Battery: AA x 2. Receiver:. Sensitivity: (S/N=30dB) >2mV. De-Emphasis: 50µS. Audio Output Impedance: 600Ω. Audio Output Level.: 0-0.5V. Power Supply: AC110V /220V 50/60Hz. Current Consumption: ≤50mA. Audio Out Connector: 1/4˝ unbalanced. Transmitter:. Frequency Stability: ±0.005%. RF Output Power: ≤30mW. Modulation Mode: VHF. Maximum Deviation Range: ±50KHz. Microphone Mode: Fixed. Pre-Emphasis: 50µS. Power Supply: AA/1.5V×2. Current Consumption: ≤35mA..
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