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Best 4 Frequency

PRV AUDIO 4 Inch Midrange Speaker 4MR60-4, 60 Watts Program Power, 4 Ohm, 30 Watts RMS Power Pro Audio Loudspeaker (Single)

  • HANDLES IT ALL: The 4MR60-4 full range speaker delivers broad frequency coverage and flat midrange response that ensures vocals and instruments to deliver ideal sound..
  • EXTENDED FREQUENCY RESPONSE: The 4″ midrange speaker 4MR60-4 is a pro audio midrange with very high sensitivity and a smooth extended frequency response up to 8 kHz.
  • COMPACT: The small dimensions and high output make it very useful to use in compact line array systems as a transition between the mid bass and high frequency way..
  • DESIGNED FOR EFFICIENCY: Each material and component such as the woven fiber glass cone, large spider, and rubber surround is carefully chosen to ensure a great sound quality and low distortion, it even operates at high power..
  • UPGRADE TODAY, HEAR THE DIFFERENCE: The 4MR60-4 even operates at high power. It is also applicable in home theaters, satellites, and surround speakers as well as in car audio when you are limited in space and require extended frequency response..
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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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(2) JBL Pro JRX215 15″ 2000w PA/DJ Speakers+Powered 12-Channel Mixer+Stands

  • ...rofessional Passive PA/DJ Speakers 8 Ohm JRX 215, (1) Rockville RPM109 12 Channel 4800w Powered Mixer, 7 Band EQ, Effects, USB, 48V, (1) Pair of Rockville Tripod Speaker/Lighting Stands+(2) 20 Foot 1/4″-SpeakOn Cables.
  • Features of JRX215:, JRX215 15″ Two-Way Sound Reinforcement Loudspeaker System, JBL 15 in low frequency driver with a 64 mm (2.5 in) diameter edge wound ribbon voice coil, JBL 2414H-C 25 mm (1 in) polymer diaphragm compression driver, Advanced network topology crossover design, High-voltage capacitors and inductors with massive cores and heavy gauge wire, Progressive Transition high frequency waveguide, 19 mm (.75 in) MDF (Medium Density Fiberboard) enclosure.
  • Details:, Power Rating : 250 W / 1000W, Frequency Range (-10 dB) : 41 Hz – 18 kHz, Frequency Response (±3 dB) : 59 Hz – 13 kHz, Sensitivity (1w/1m) : 99 dB SPL, Nominal Impedance : 8 ohms, Recommended Amplifier Power : 250 W to 500 W into 8 ohms, Maximum SPL: 129 dB, Nominal Dispersion : 90º x 50º, Crossover Frequency : 2.2 kHz, Dimensions (H x W x D) : 699 mm x 460 mm x 432 mm (27.5 in x 18.1 in x 17 in), Weight : 27.4 kg (60.5 lb).
  • Rockville RPM109 12 Channel 4800w Powered Mixer, 7 Band EQ, Effects, USB, 48V , RMS Power Output:, …..600w x 2 @ 4 Ohm, …..450w x 2 @ ....
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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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High Frequency Facial Wand - TUMAKOU Portable Handheld Blue High Frequency Facial Machine - 4 Different Blue Glass Tubes for Skin

  • 【Latest Upgraded Blue High Frequency Technology】TUMAKOU blue high frequency technology combines ORANGE and VIOLET effects into a universal tube,Then add TUMAKOU high frequency safe and 100% natural way technology to bring you the best results over time..
  • 【Enjoy Using 4 Blue Glass Tubes for Different Uses】This TUMAKOU high frequency facial wand comes with 4 different blue glass tubes to meet all your needs(1*Mushroom Tube, 1*Tube, 1*Bend Tube and 1*Tongue Tube), and let you focus on all the different areas. Mushroom tube is suitable for broader areas, the Tube is used for hair, Tongue tube is suitable for area around the eye, and Bend Tube is suitable for area around the nasal fossa..
  • 【Adjustable Level & Easy To Use】The energy level of our portable high frequency facial machine is adjustable,the higher level will bring you better results! But before using it for the first time, we recommended to test the strength by hand, and then use it where you want to use it. When you using, just insert the glass tube into the wand, push it in gently, then turn the high frequency face machine down to zero and turn it on, choose different levels to use accordi....
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Shure BLX4 Wireless Receiver - Transmitter Sold Separately

  • For this wireless system component to work, please make sure your transmitter and receiver match in frequency range (style).
  • Up to 12 compatible systems per frequency band (region dependent).
  • Microprocessor-controlled internal antenna diversity.
  • One-touch Quick Scan frequency selection quickly locates the best frequency.
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RockvilIe RWM1203VH Wireless (2) Handheld Microphones 4 Church Sound Systems

  • Ultra signal stability eliminates unwanted distortion, Transmitter automatically links to receiver for ease of use, Use two handheld mics at once, Individual microphone volume controls, Low power consumption for longer battery life, System comes in 4 different frequency options. You can request a specific one in the notes A. 255.1/227.1 MHZ, B. 224.9/256.9 MHZ, C. 228.9/253.4 MHZ, D. 230.8/255.8 MHZ.
  • Specifications of RWM1203VH: System: Operating Range: 150 feet or more, Channel: Two Channel, Frequency Range: 210MHz - 270MHz, Frequency Response: 40Hz-18KHz, S/N.:>103dB (1KHz-A), Operating Temp: 14°F – 122°F, Oscillation Mode: Quartz Crystal, Frequency Stability: ±0.005%, Harmonic Radiation :< 63dBm.
  • RF Output Power: 10mW, Power Voltage: AC110V- 60Hz, Mic Battery: AA x 2, Receiver: Sensitivity: (S/N=30dB) >2mV, Audio Output Impedance: 600O, Audio Output Level.: 0-0.5V, Power Supply: AC110V 60Hz, Current Consumption: =50mA, Audio Out Connector: 1/4" unbalanced, Transmitter: Frequency Stability: ±0.005%, RF Output Power: =10mW.
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Rockville RWM1203VH VHF Wireless Dual Handheld Microphone System/Digital Display

  • ... dual filter design to limit feedback and interference. Ultra signal stability eliminates unwanted distortion..
  • Transmitter automatically links to receiver for ease of use. Use two handheld mics at once. Individual microphone volume controls. Low power consumption for longer battery life..
  • System comes in 4 different frequency options. You can request a specific one in the notes, A. 255. 1/227. 1 MHZ , B. 224. 9/256. 9 MHZ, C. 228. 9/253. 4 MHZ, D. 230. 8/255. 8 MHZ.
  • Operating Range: 150 feet or more. Channel: Two Channel. Frequency Range: 210MHz - 270MHz. Frequency Response: 40Hz-18KHz. S/N. : 003e103dB (1KHz-A)..
  • Operating Temp: 14° F 122° F. Oscillation Mode: Quartz Crystal. Frequency Stability: ± 0. 005%. Modulation Mode: VHF. Harmonic Radiation : 003c 63dBm..
  • RF Output Power: 10mW. Power Voltage: AC110V- 60Hz. Mic Battery: AA x 2. Sensitivity: (S/N=30dB) 003e2mV. Audio Output Impedance: 600Ω . Audio Output Level. : 0-0. 5V..
  • Power Supply: AC110V 60Hz. Current Consumption: ≤ 50mA. Audio Out Connector: 1/4" unbalanced. Transmitter: Frequency Stability: ± 0. 005%. RF Output Power: ≤ 10mW..
  • Modulation Mode: VHF. Maximum Deviation Range: ± 50KHz. Microphone Mode: Fixed. Power Supply: AA/1. 5V× 2. Current Consumption: ≤ 35mA..
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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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YUCHENGTECH Ionizing Air Blower Static Eliminator Anti Static Fan HFAC ESD Ionizer Fan Anti Static Blower (110V)

  • 1.【High-frequency AC】◈ Frequency up to 68000Hz, with high ion density, and better effect of removing static electricity. (Traditional Low Frequency: 50 / 60Hz)..
  • 2.【Upgrade dual cleaning function】◈ With automatic cleaning and manual cleaning function, built-in cleaning brush, set cleaning time, can clean automatically.
  • needle seat can be disassembled freely, also can be cleaned manually, convenient for maintenance..
  • 3.【Fast to remove static】◈ Ionizing air blower adopts high frequency technology, with large air volume, widely air flow coverage area and high efficiency electrostatic removal..
  • 4.【Tungsten Alloy Ion Needle】◈ Compared with ion needles of other materials, tungsten alloy ion needles contain tungsten up to 99% and have good ion balance, quickly neutralize static electricity,the service life can reach 20000 hours..
  • 5.【Ionizing Air Blower】◈ Discharge Time: .
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Electric 3-Way HiFi Speaker Frequency Divider Tweeter Midrange Woofer Crossover Filters Durable Quality 138 x 106mm Filter

  • Total Power: 280W (Power ratio: Bass 65%,Mediant 20%,Treble 16%).
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VocoPro, 4 A-B Box, XLR, Black, Digital-Quad-H4 (DIGITALQUADH4)

  • VOCOPRO Four-Channel UHF Digital Wireless Handheld Microphone Mics System-H4 . Four Wireless Handheld Microphones . Each Channel Has A Dedicated XLR Output And Volume Control ..
  • Utilizes The Sparsely Used 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 . Four Balanced XLR Outputs Available. One ¼” Mixed Output Available..
  • Brackets Included For Mounting In a Rack Case . Four Different Frequency Sets Available.
  • Receiver Dimensions: 8.375”W x 1.250”H x 5.250”D. Rear Panel Connections: Power in, 1/4" Audio Out, 4 XLR Audio Outputs. Accessories: Mounting Brackets, 1/4" Patch Cable, Power Adapter..
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High Frequency Machine, JinhzWin Portable Handheld High Frequency Machine with 4 Pcs Different Orange Light Wand

  • PACKAGE LIST: The high frequency machine include 1 x handle, 1 x mushroom wand, 1x tongue wand, 1 x bend wand, 1x comb wand, 1xEnglish Manual..
  • 4 PCS DIFFERENT GLASS WAND: 4 different glass tubes (tongue tube, mushroom tube, bend tube, comb tube), you can choose one according to your needs..
  • CONVENIENT and PORTABLE: Our high frequency machine is easy to carry and use..
  • FREQUENCY of USE: We recommended using it 2-3 times a week and avoiding prolonged use in the same area..
  • GREAT GIFT CHOICE: Our high-frequency machines are all packed in color boxes, which can be given to your friends and family as gifts at Christmas, birthdays, and other parties..
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