Best 8 Variable Gain Amplifiers in 2026

Power - 1100 Max x 1 @ 2 Ohms, 550 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 & current precisely by removing the output current sensing loss & eliminating all secondary feedback circuitry

The R2-500X1 full-range class-D mono amplifier (1.9" x 6.8" x 8.5") is packed with features and performance to deliver power and bass on demand with 500 Watts of RMS power

Class D technology makes this amp extremely efficient by reducing demand on the vehicles electrical system (RMS Power: 300 Watts x 1 @ 4Ω OR 500 Watts x 1 @ 2Ω)

Featuring C.L.E.A.N. circuitry to help you adjust your gain settings, a P.O.W.E.R. Supply that generates more power as voltage increases, and integrated Punch EQ that corrects for acoustic deficiencies while delivering up to 3X the bass

500-Watt MOSFET 4-Channel Class A/B Power Car Amplifier

RMS Power at 2 Ohms: 125 Watts x 4 Channels

RMS Power at 4 Ohms: 75 Watts x 4 Channel

550 W MAX Power @ 2 Ohm x 2 Channels

250 W MAX Power @ 4 Ohm x 2 Channels

1000 W MAX Bridged Power @ 4 Ohm x 1 Channels

Power - 200 Watts Max x 4 @2-Ohms, 100 Watts Max x 4 @4-Ohms, 400 Watts Max x 2 Bridged @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. Efficiency is the name of the game

Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers

Class-D Mono-block Subwoofer Amplifier, 2500 Watts Max Power, RMS 1250 Watts x 1@1 Ohm; RMS 900 Watts x 1@2Ohm; RMS 550 Watts x 1@4Ohm. Recoil mono amplifiers are stable down to one Ohm, giving you the freedom to put even more subs in your system.

Featuring a high-speed MOSFET power supply, premium grade internal components, as well as 4-way protection circuitry, the amplifier will safely operate at the highest levels of performance for hours on end. Highly efficient heatsinks keep the amplifier cool with a sophisticated new look.

Recoil mono amplifiers come with bass remote control. Use it to customize your bass on the fly with just a turn of a knob.

1-Ohm Minimum Impedance Monoblock Operation | Multi-color RGB LED Illumination Accent Lighting | Solid Color, Flashing, Random, or Slow-Motion Color Change | MOSFET Power Supply with Audiophile Grade IR Transisitors

Direct Short, Thermal and Overload Circuits Protect Amplifier | 200mV-6V Low Level RCA Input and Pre-Amp Output | Variable 12dB Low Pass and Subsonic Crossovers | 12dB Bass Boost Increases Low Octave Harmonics

DataLink for Strapping Two Amps for Double Power | Dash Mount Gain Control Module Included | RMS Power Rating: 800W x 1 at 4-Ohm | 1,400W x 1 at 2-Ohm | 2,500W x 1 at 1-Ohm | 3,000W x 1 at .5-Ohm | 6,000W Max Power