Best 8 Variable Gain Amplifiers in 2026

Class D amp with Crown ultra-efficient drive Core technology weighs less than 11 lb. (5 kg)

Higher DSP capabilities: more control; has band pass filter per channel

Increased lighting functionality; turn off all LED indicators except clip and thermal to reduce distraction in dark venues

Stereo/Parallel/Bridge-Mono Mode

User Selectable Input Sensitivity - 0.775V And 1.4V

Electronically Balanced Rca & Xlr Inputs; Binding Post And Speak On Outputs

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

Product Name : Audio Amplifier Module;Chip : LM386

PCB Board Size : 41 x 14mm(L*W);Material : Electric Part

Onboard LM386 Chip.With 200 multiplier benefits circuit design

A MUST HAVE | The UR 1 Gain Amplifier Subwoofer Volume Knob allows you to control your Subwoofer output channel from the driver's chair for when you need that quick adjustments without fussing with your Graphic Equalizer or Stereo Volume Controls!

RATED FIVE STARS | The UR 1 is a great control knob to have and a nice addition to your sound system. With its good build quality, the control knob is very precise, giving you unparalleled level of control on adjusting the bass for different types of music.

EASY SETUP | Works great, and it is very easy to mount on your car's console with no hardware to buy. Great for multi-sub setups in cars. Adjust the volume on the fly, and crank it up!

1000 WATT POWER: The Pyle Dual Channel Car Amplifier is perfect for your vehicle's sound system. Gives you up to 1000W bridgeable output. Features variable subwoofer crossover, variable gain control and high level low impedance MOLEX input connector

SILVER-PLATED RCA PORTS: The RCA ports are silver-plated for eliminating signal loss. The subsonic filter allows low-end interference to be cut so your speakers will always deliver the highest quality audio

DISTORTION-FREE: The MOSFET pulse width modulation power supply allows for a clean distortion-free signal to your compact speakers providing you w/ crisp and clear audio for an outstanding music experience

0.1-2000MHz RF Wide Band Amplifier

Power supply voltage: 9-12 VDC

High Gain Low Noise LNA Amplifier

Mutiple input/output interfaces: with 3.5mm AUX/stereo RCA/5-DIN inputs and stereo RCA/5-DIN outputs, can be compatible with most low-volume audio sources such as ipod, ipad, phone, TV, MP3 player, potable CD player, computer, video game etc., and boost their output to the level needed to drive amplifier or speakers.

With built-in amplification and voltage boost circuit: adjustable gain to match better with different audio sources, support DC 5-24V wide input voltage that can share the power supply of amplifiers, while L1 can always work at a high voltage of 26V to provide ±12.5V high output amplitude and max 20dB high gain.

Unique design and HiFi clear sound: double-side PCB design, NE5532P op amp with pluggable socket design, convenient to change other op amps to enjoy different sound and bring much DIY fun for audiophiles. High-qaulity sealed potentiometer, with wide frequency bandwidth and excellent dynamic response, the sound is smooth and natural, warm and delicate with ultra-low distortion.

Material: Electric Parts

Model: LM386

200 multiplier benefits circuit design

voltage: 9-12 VDC

Maximum power output+13dBm 20mW

Name: AD603 Voltage Controllable Gain VCA Module Size: 50mm X 39mm Supply voltage range: ±5v

This amplifier module is a voltage controllable gain amplifier. It is composed of two AD603 cascade amplifiers. It can amplify the signal voltage amplitude well. The gain can be adjusted up to 80dB.

The AD603 is a low noise, voltage controlled amplifier for radio frequency (RF) and intermediate frequency (IF) automatic gain control (AGC) systems.

This audio amplifier module is a mono audio amplifier based on the LM386 chip,which is useful for DIY many HAM radio experiments.It is a very cost effective method of small signal amplification.Very convenient instead of using separate components.Handy!

Great small low frequency audio power amplifier to be used for driving small speakers or to build an RC sound module with an arduino. It could be hooked up to headphones directly too

This tiny Op Amp module is good and delivers clear crisp sound.Easy to adjust volume with variable resistor.A convenient screw terminal allows the user to connect a suitable loudspeaker without any soldering.It works with RC truck sound system or an RC boat project

Onboard LM358 Chip .

100 gain of the circuit design.

Onboard10K adjustable resistance, you can adjust the magnification.

Onboard chip LM386 Audio Amplifier Module. A circuit design with the advantages of a 20 multiplier. Chip: LM386 power amplifier for Arduino EK1236. PCB Board Size: 1.61 x 0.55inch(L*W), Material: Electric Part.

Car speaker wire clamp. Few peripheral devices; Low distortion; This plate is 200 times the default gain; Onboard horn socket;

Vehicle-mounted 10K variable resistance, adjustable volume. Components and total are widely used tape recorders and radios being.

This audio amplifier module is a mono audio amplifier based on the LM386 chip,which is useful for DIY many HAM radio experiments.It is a very cost effective method of small signal amplification.Very convenient instead of using separate components.

Onboard LM386 chip, with 20 multiplier benefits circuit design, on-board speaker wire holder, on-board 10K variable resistor, you can adjust the amplification volume.

LM386 audio amplifier board power indicator,the main feet of the chip has been leaded, can input audio signal directly, wide operating voltage range: 4-12V

EASY INSTALLATION: Signal booster amplifier is easy to install, made of good quality plastic, metal, and rubber material for high performance

AUTOMATIC GAIN ADJUSTMENT: Built in gain automatic adjustment function, eliminating manual adjustment, easy and convenient to use

VARIABLE LEVEL CONTROL: Video input level is 2.0Vpp, video output level from 0.5‑1.5Vpp, video output impedance for 70ohms, working voltage is 12V DC