Top Impedance Matching - BuyWiseBest.com

Proster Headphone Amplifier with 500mW Power Support 16-500 Portable Amp Rechargeble 3.5mm HiFi Audio Amp Earphone Amplifier USB for iPhones iPod MP3 MP4 Digital Player Computer

HiFi Headphone AmplifierSupports most headphones of high impedance 16-500, signal-to-noise ratio> 100Db, THD + N = 0.0003%, fully filter noise, output remarkable sound without distortion..
2400mAH Rechargeable BatteryRechargeable lithium battery with 2400mAH capacity can achieve over 16 hours continuously working time. Professional chip design and expertly selected components, utilizing OPA2140 preamp section..
Aluminum Matte SurfaceDurable aluminum matte helps to shield/reduce signal interference and enhance heat resistance, meanwhile provide you a comfortable handheld feeling..
Gain Switch & Power IndicatorA gain switch for matching output to headphone power needs.
Charging Indicator for power status checking.
Adjust headphone output via volume control knob as your will..
Compact & PortableWith 1.1m USB charging cable, the HiFi Amp is compatible with headphone Shure SE215 Sennheiser IE80 Sennheiser HD650 Sony XBA-A3 Beyerdynamic DT990.(Output Power: 25mW in Impedance 500, 500mW in Impedance 16).

SOUND QUALITY: The audio stays at a consistent quality with the SSVC4 to manage your speakers with volume controls to raise or lower the volume of....
IMPEDANCE PROTECTION: Impedance-matching frequency protection circuitry allows one amplifier to safely power multiple pairs of speakers without your....
POWER: This speaker selector allows you to distribute an amplified signal for up to four zones throughout the house, letting you choose which source....
DURABLE: The SSVC4 features a 16 gauge steel construction with durable black wrinkle powder coating and gray silk-screening. There are screw down....
DESIGN: Front mounted master a/b switches are dual source for each separate zone to conveniently input and switch from one music source to another....

SOUND QUALITY: The audio stays at a consistent quality with the SSVC2 to manage your speakers with low-profile table top volume controls to raise or....
IMPEDANCE PROTECTION: Impedance-matching frequency protection circuitry allows one amplifier to safely power multiple pairs of speakers without your....
POWER: This speaker selector allows you to distribute an amplified signal for two zones throughout the house with 300 watts, letting you choose which....
DESIGN: Front mounted master a/b switches are dual source for each separate zone to conveniently input and switch from one music source to another....
EASY INSTALLATION: The SSVC2 includes removable spring-loaded guillotine-style push terminals that accept up to a 14 gauge speaker cable to avoid....

The single-band 80m-10m end-feed half-wave linear antenna provides the antenna. It is designed as a highly portable wired antenna that can be easily set as an inverted V-shaped, horizontal, tilted, or vertical radiator (at higher frequencies)..
Your feeder is inherently balanced, so no separate feeder is required. The high-impedance half-wave line is matched to your 50-ohm feed point through an integrated impedance-matching toroidal transformer with a rated power of 10 watts..
Use a high-voltage capacitor on the primary of the transformer with a specific radiator length to further expand and reduce the SWR within the range of 80m-10m..
It is designed to be used without the use of a tuner, and after optimizing the driven element, SWR ≤ 1.2 for any part of the frequency band..
Package Included: 1 x Portable No Tune End Fed Half Wave Antenna.

✔【RATIONAL DESIGN】- Buzzer is an electronic sounder with integration structure. Using DC power, connected to rated power and the buzzer will sound continuously..
✔【CORE COMPOSITION】- Piezoelectric buzzer is mainly made up by multivibrator, piezoelectric buzzer chip, impedance matching unit, resonator and shell..
✔【PRODUCT PRINCIPLE】- Multivibrator is composed of transistors or integrated circuits. When switched on, multivibrator vibrates and outputs audio signal..
✔【EASY TO CONTROLL 】- Impedance matcher drives piezoelectric buzzer sound. Can be controlled conveniently..
✔【 APPLY TO】- The active buzzer is widely used on computers, printers, photocopiers, alarm, electronic toys, automotive electronic equipment, telephone, timer and other electronic products..

Use to connect older TVs with flat cable input to coaxial cable. Transforms signal impedance from 300 Ohms used in coaxial cable to 75 Ohms used in....
With this adapter, you can make your own homemade antenna..
Supports bandwidth 5-900MHz frequency HD/TV/UHF/VHF/FM..
Package include: 2PCS impedance matching transformer.
100% GUARANTEE, all Ancable products come with 12 months warranty, you are protected with our 100% No Questions Asked Guarantee for either a....

SOUND QUALITY: The audio stays at a consistent quality with the SSVC6D to manage your speakers with volume controls to raise or lower the volume of each listening zone for perfect sound..
IMPEDANCE PROTECTION: Impedance-matching frequency protection circuitry allows one amplifier to safely power multiple pairs of speakers without your amp or receiver overheating or damaging to the equipment..
POWER: This speaker selector allows you to distribute an amplified signal for up to six zones throughout the house, letting you choose which source is playing in each designated zone..
DESIGN: Front mounted master a/b switches are dual source for each separate zone to conveniently input and switch from one music source to another with on and off buttons..
EASY INSTALLATION: The SSVC6D includes a removable phoenix connectors that accept up to a 14 gauge speaker cable to avoid frustration when connecting multiple speakers..

【Heavy-duty】Professional and multi-purpose direct injection box for stage and studio applications.
【High sound quality】Provides impedance and signal matching for the direct connection of instruments to mixers and amplifiers.
【Clean and pure 】Ultra-flat frequency response due to renowned Donner LAB-S1 transformer .The transformer also helps eliminate hum and buzz caused by ground loops by isolating the input from the output..
【Robust circuit design】Converts a line or instrument level unbalanced signal to a low impedance mic level balanced signal.
【Low noise】Ground Lift switch eliminates typical ground loop problems .Send the thru signal to your amp and the output to the PA system. Transformer isolation eliminates nasty hum and buzz caused by ground loops..