Best Microphone Impedance Matching Circuits

Actron CP7665 AutoAnalyzer - Digital Automotive Multimeter

  • Actron's AutoAnalyzer performs all standard electrical tests for both on-car and bench troubleshooting allowing you to quickly diagnose and repair problems.
  • Measures AC/DC voltage, DC current, and resistance.
  • use to test diodes, batteries (1.5V, 9V, 12V), fuses, switches, solenoids, and relays.
  • Built-in automatic polarity sensing avoids reversed test lead hook-ups.
  • automatic zero adjustment for volts, amps, and battery tests ensures accurate measurements.
  • 10 MΩ input impedance for proper testing of sensitive automotive computer circuits.
  • Features: easy-to-read backlit LCD display - use day or night, hold button to retain display data, overload protection, low battery indicator, 19 ranges, 10 MΩ input impedance, 9-volt battery power (battery not included).
  • Includes color-coded leads, alligator clips, foldout stand, quick start guide, and a comprehensive downloadable usage manual with testing procedures and tips in English, Spanish, and French.
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Monoprice 8 Zone Single Input Speaker Distribution Hub Connect Up to 8 Pairs of Speakers to A Single Amplifier or Receiver Black 138161

  • Designed to connect up to eight pairs of speakers to a single amplifier or receiver..
  • Uses removable terminal blocks for easy connection for the speaker wires..
  • Note that this speaker selector does not include impedance matching circuitry..
  • The use of impedance matching volume controls are highly recommended to prevent damage to the amplifier caused by low impedance loads..
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RUSSOUND #3615-604034 SDB-6.1 Dual Source 6 Pair Speaker Selector

  • Designed for high audio quality and long-term reliability.
  • Provides impedance matching and automatic overload protection Compatible with high-power amplifiers.
  • Bypass mode allows direct speaker switching when using remote impedance-matching volume controls.
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Russound SS6.2 Speaker Selector

  • Designed for high audio quality and long-term reliability.
  • Provides impedance matching and automatic overload protection Compatible with high-power amplifiers.
  • Bypass mode allows direct speaker switching when using remote impedance-matching volume controls.
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Russound ALT126R Decora Volume Control White/Light Almond

  • Designed for high audio quality and long-term reliability.
  • Provides impedance matching and automatic overload protection Compatible with high-power amplifiers.
  • Bypass mode allows direct speaker switching when using remote impedance-matching volume controls.
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SGPRO Active Direct Box, Recording Signal DI Box for Musical Instruments as Guitar, Bass Guitar, and Keyboard Live Performance or Studio, 1/4" to XLR, Ground Lift 48V Phantom Powered Compact Unit

  • ENSURE GREATER SOUND QUALITY: The active direct box reduces the impact on sound quality due to unmatching signals from musical instruments with different impedances..
  • MATCHING IMPEDANCES: The direct box turns the high impedance signal into a low impedance signal for live performance, recording, or broadcasting..
  • EXTRA GAIN FOR LONG DRIVING CABLE RUNS: The active DI box is 48v phantom powered, which provides an additional gain to boost the weak output of some passive, single-coil pickups and extend long driving cable runs..
  • NOISE ELIMINATING: A switchable ground lift prevents current from flowing between the DI and the microphone preamplifier along the shielding, breaking the ground loop and eliminating this noise. It also reduces the noise from using long wires and cords..
  • PREVENT EXCESSIVE GAIN: The direct box comes with switchable pad (-12 dB) to prevent excessive gain from overloading the circuitry to accommodate the high output of active pickups and unbalanced line-level equipment such as keyboards and electronic instruments..
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Rockville PC Gaming Streaming Twitch Bundle RCM03 Microphone+Headphones+Boom Arm

  • Package Includes: (1) RockvilIe RCM03 Pro Studio Recording Condenser Microphone Mic+Metal Shock Mount. (1) RockvilIe DMS40 40" Microphone Boom Arm Studio Podcast USB Mic Stand+Desk Clamp. (1) RockvilIe PRO-M50 Studio Headphones w/ Detachable Coil Cable, Case+Extra Ear Pad. RCM03 Condenser Microphone (made of aluminum!). 100% Copper 10 foot 3.5mm jack to XLR cable to connect mic to your computer or other device. 100% Copper 10 foot XLR to XLR cable to connect to any mixer with phantom power.
  • Metal shock mount. Metal Anti-wind foam cap. Owners Manual. Warranty card. Features: RockvilIe RCM03 Pro Studio Recording Condenser Microphone Mic+Metal Shock Mount. Aluminum high quality construction. Polar Pattern: Internally Polarized Condenser Cardioid Design. Large diaphragm for smooth, natural sound and low noise. Power Requirements: 48V DC phantom power or computer sound card (can connect to the phantom power channel of your mixer or can connect to your laptop or computer).
  • Uni-directional. Sensitivity: -27dB2dB(0dB=1V/Pa at1kHZ). Output impedance: 2000%(at 1kHz). Standard operating voltage: 3V. Operating voltage range: 1.5V-10V. Current consumption: less than 500uA. Voltage deduction characteristic: within 3dB at 2V. S/N ratio: More than 24dB. Frequency Resp....
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Teac AX-501 Integrated Amplifier Silver

  • ALC0240 Class-D Power Amplifier by ABLETEC.
  • A fully-balanced approach used for the analog circuits on the pre-amplifier.
  • Maximum 120W + 120W of output power for practical use (at 4ohms impedance).
  • Dual analog level meters with dimmable backlight.
  • No Cooling-Fan, for Quiet Operation Efforts to eliminate noise and ensure high-quality audio.
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Dynex DX-840 USB Headset with Microphone

  • Mono headset with a deluxe leatherette ear pad is ideal for long-term use.
  • Noise-canceling microphone ensures your voice is heard clearly.
  • Adjustable headband for a comfortable fit: 7' cord.
  • USB connector for easy connection to a PC:# Impedance: Headset: 32 ohms.
  • Frequency Response: Headset: 20Hz - 20kHz.
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