Best Feedback Amplifiers

Behind the Ear Sound Amplifier - BTE Hearing Ear Amplification Device and Digital Sound Enhancer PSAD for the Hard of Hearing, Noise Reducing Feature, Black, By MEDca

...VERYTHING PERFECTLY CLEAR: Wouldn't you love being able to hear anything you need to as crystal clear as it is meant to sound. Well, if you've been looking for a device that allows you to hear anything, then your search is over! That's because the MEDca behind the ear sound amplifier offers high quality digital BTE amplifiers which means that you can hear everything that you’ve been missing, guaranteed!.
UNMATCHED PERFORMANCE! COMFORTABLE AND DISCREET: Don't worry about carrying extra weight around. Because our MEDca BTE Hearing Amplifier is so small and light-weight, it fits any ear comfortably. This is great for you because it is versatile, easy to use, and has low battery consumption. This BTE amplifier is so small, discreet and comfortable you’ll forget that you’re wearing it..
NO PROGRAMMING REQUIRED! NO MORE ANNOYING FEEDBACK: The problem with other digital ear amplification devices is that annoying loud feedback that you can get. Our sound enhancer solves that problem! Why? That's because our BTE amplifier has a unique noise reduction feature and digital circuitry and control which means you have total control over what you hear and what you don’t. Never suffer noisy feedback again!.
TOP QUALITY! SUPERIOR SPECS: This digital ear amplifica....

...oisy settings. The sound quality is consistent, long lasting, and sharp, with almost zero whistling or feedback - you can even control the volume for your individual needs. Works great for high tones and TV dialog as well..
100% Rechargeable - The high quality Atom hearing amplifiers are 100% rechargeable with wireless magnetic charging and feature a 20 hour battery life with a 4-6 hour charging time. With a sleek magnetic charging dock, the devices wirelessly charge when in the dock. No more fumbling around with tiny button batteries, Audien sound amplifiers are perfect for people who have dexterity issues or are just simply tired of endlessly buying and replacing batteries for their hearing devices..
Affordable - Audien hearing amplifiers make perfect gifts for elderly family members with hearing loss..
Incredibly Comfortable - Our patent pending design along with our proprietary material used to make each amplifier provides an enhanced fit and improved listening experience, all while comfortably floating inside of your ears. They don't slip out and are designed to fit the natural curve of the ear canal. All Audien hearin....

...asier and more comfortable for you to hear in noisy settings. The sound quality is consistent, long lasting, and sharp, with almost zero whistling or feedback - you can even control the volume for your individual needs. Works great for high tones and TV dialog as well..
Rechargeable - The high quality Audien hearing amplifiers are 100% rechargeable with portable, true wireless charging and feature a 24 hour battery life with a 4-6 hour charging time. With a sleek, pocket-sized wireless charging case, you can charge your devices on the go. No more fumbling around with tiny button batteries, Audien sound amplifiers are perfect for people who have dexterity issues or are just simply tired of endlessly buying and replacing batteries for their hearing devices..
Incredibly comfortable - Our patent pending design along with our proprietary material used to make each amplifier provides an enhanced fit and improved listening experience, all while comfortably floating inside of your ears. They don't slip out and are designed to fit the natural curve of the ear canal. All Audien hearing devices come with different sized earbuds included in the package (small, medium and large) so you can easily find your personal perfect fit..

Professional dynamic microphone for instrument and vocal applications.
Frequency response designed for guitar amplifiers, percussions and brass instruments.
Super-cardioid polar pattern minimizes background noise and feedback.
Switchable low-cut, flat and high-frequency boost to match instruments.
Extremely high signal output which lets the sound cut through.

Power – 500 Watts Max x 2 @2-Ohms, 250 Watts Max x 2 @4-Ohms, 1000 Watts Max x 1 Bridged @4 Ohms.
Full Range – With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers.
Class A/B Topology – Class ‘A’ amplifiers have enormous amount of current flowing through its output transistors with no audio signal. Class ‘B’ amplifiers have no current flowing through its outputs with no audio signal.
Mosfet Power Supply – A MOSFET is an electrical switch that allows the flow of electrical current. It controls the output voltage and current precisely by removing the output current sensing loss & eliminating all secondary feedback circuitry.
Variable Gain Control – The gain control is not for adjusting volume. It simply adjusts the amount of signal that is coming from your receiver and going to your amplifier.

POWER: 1500 Watts Max x 1 @2-Ohms, 750 Watts Max x 1 @4-Ohms.
CLASS A/B TOPOLOGY: Class ‘A’ amplifiers have enormous amount of current flowing through its output transistors with no audio signal. Class ‘B’ amplifiers have no current flowing through its outputs with no audio signal.
MOSFET POWER SUPPLY: A MOSFET is an electrical switch that allows the flow of electrical current. It controls the output voltage and current precisely by removing the output current sensing loss And eliminating all secondary feedback circuitry.
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.
SWITCHABLE BASS BOOST: Bass Boost allows you to adjust the low bass within the boost range to just the way you like it.