Best 8 Variable Gain Amplifiers in 2026
Daisy
Last Updated: Feb 7, 2026
Daisy
Last Updated: Feb 7, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AVLeaderz | 9.87 | ❌ | ❌ | ❌ |
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
Designed for subwoofers, a variable infrasonic filter and remote level control allows you to tune the bass for the desired level for the music
Famous Rockford Fosgate build quality with a full 1-year warranty when purchased from an authorized Rockford Fosgate reseller
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Speece, Inc. | 9.88 | ✅ | ✅ | ✅ |
Power - 450 Watts Max x 4 @2-Ohms, 225 Watts Max x 4 @4-Ohms, 900 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
Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers
Mosfet Power Supply - A MOSFET is basically 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
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
Variable BASS Boost - With Variable Bass Boost you have the control of exactly how much BASS you want to pump out to your subwoofer(s)
Bridgeable - Dramatically increase the power output to you speakers and subwoofers by connecting two amplifier channels
Specs - Dimensions: 13.5” x 10.31” x 2.25, Weight: 12 lbs.
Warranty - BOSS Audio Systems provides a powerful 6-year Platinum Online Dealer Warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| CE Showroom | 9.89 | ✅ | ✅ | ✅ |
Power - 2000 watts Max X 1 @2-ohms, 1000 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
Low/high level inputs - a low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers
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
Variable bass Boost - bass Boost allows you to adjust the low bass within the boost Range to just the way you like it
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
Dimensions - 13.13” x 6.5” x 2.8”, weight - 3.81 lbs. It can be installed in a variety of different places due to its’ slim and Compact design
Warranty - BOSS Audio provides a powerful 6-year platinum online dealer warranty so long as the purchase is made through Amazon.Com. We strongly encourage professional Installation of this product to ensure proper and safe functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| BargainFlip | 9.88 | ✅ | ✅ | ✅ |
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
Full-Range, Class A / B Topology, MOSFET Power Supply
Low and High Level Inputs, Variable Low Pass Crossover, Variable High Pass Crossover
Variable Bass Boost, Variable Input Gain Control, Input Sensitivity Selector, Remote Subwoofer Control
Dimensions: Depth 9.5” x Width 10” x Height 2.3”
6 Year Platinum Online Dealer Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Speece, Inc. | 9.88 | ✅ | ✅ | ✅ |
Power - 100 Max x 2 @ 2 Ohms, 50 Max x 2 @ 4 Ohms
Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers
Low & High Level Inputs - A low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers
Variable Input 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
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
Specs - Dimensions: 5.25” x 9” x 2”, Weight: 2.2 lbs., Speaker Impedance: 2 to 8 Ohm, THD @ RMS Output: 0.01%, S/N Ratio: 90 dB, Frequency Response: 12 Hz to 22 kHz, Fuse Quantity: 1 7.5 Amp ATO Blade
BOSS Audio Systems provides a 6 Year Platinum Online Dealer Warranty for purchases through Amazon.Com. We strongly encourage professional installation of this product to ensure proper functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Speece, Inc. | 9.88 | ✅ | ✅ | ✅ |
Power - 600 Max x 2 @ 2 Ohms, 300 Max x 2 @ 4 Ohms, 1200 Max Bridged x 1 @ 4 Ohms
Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers
Low & High Level Inputs - A low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers
Variable Input 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
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
Specs - Dimensions: 12.28” x 10.44” x 2.25”, Weight: 5.86 lbs., Speaker Impedance: 2 to 8 Ohm, THD @ RMS Output: 0.01%, S/N Ratio: 102 dB, Frequency Response: 9 Hz to 50 kHz, Fuse Quantity: 2 25 Amp ATO Blade
Warranty - BOSS Audio Systems provides a 6 Year Platinum Online Dealer Warranty for purchases through Amazon.Com. We strongly encourage professional installation of this product to ensure proper functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Speece, Inc. | 9.88 | ✅ | ✅ | ✅ |
Power - 400 Max x 2 @ 2 Ohms, 200 Max x 2 @ 4 Ohms, 800 Max Bridged x 1 @ 4 Ohms
Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers
Low & High Level Inputs - A low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers
Variable Input 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
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
Specs - Dimensions: 10.72” x 10.44” x 2.25”, Weight: 5.20 lbs., Speaker Impedance: 2 to 8 Ohm, THD @ RMS Output: 0.01%, S/N Ratio: 102 dB, Frequency Response: 9 Hz to 50 kHz, Fuse Quantity: 1 40 Amp ATO Blade
Warranty - BOSS Audio Systems provides a 6 Year Platinum Online Dealer Warranty for purchases through Amazon.Com. We strongly encourage professional installation of this product to ensure proper functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| PRV Audio Group | 9.59 | ✅ | ✅ | ✅ |
COMPACT DESIGN: Digital class D Brazilian technology allows this amplifier to have a small footprint by integrating a high-speed mosfet power supply with top of line transistors to ensure performance in a small heat sink without compromising performance. Dimensions: 3.93″ depth x 5.02″ width x 2″ height
POWER: This amplifier is designed to run your stereo system with the power it needs to perform! 500 Watts maximum dynamic RMS power output of 4x 125 Watts at 2 Ohms per channel. Its high efficiency rate of 87% provides more power with less battery consumption.
BRIDGEABLE: Double the power output to your speakers by bridging two channels. Minimum impedance of 4 Ohms per bridged channel at output power of 2 x 225 Watts RMS
TECHNOLOGY: A smart electronic 2-way protection circuit protects the amp if it gets too hot or if speakers fail causing a short! Focusing in sound quality, a full range response of 10 to 24,000Hz was used to give the best sound reproduction on this tiny amplifier.
FEATURES: Heavy Duty 10 Gauge power and speaker wire Inputs. Built-in crossover filters for easy tuning! Choose between a fixed HPF at 90Hz or LPF at 90Hz + 45Hz Bass Boost or just turn it FLAT and use your external crossover or DSP settings. It also includes Variable Gain Control. Level controls are not for adjusting volume. They adjust the amount of signal that is coming into the amplifier from your signal source.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Speece, Inc. | 9.88 | ✅ | ✅ | ✅ |
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
Variable Bass Boost - With Variable Bass Boost you have the control of exactly how much BASS you want to pump out to your subwoofer(s)
Bridgeable - Dramatically increase the power output to you speakers and subwoofers by connecting two amplifier channels
Specs - Dimensions: 9. 5” x 10. 31” x 2. 25”, Weight: 6. 62 lbs.
- BOSS Audio Systems provides a powerful 6 year Platinum Online Dealer so long as the purchase is made through . We strongly encourage professional installation of this product to ensure proper and safe functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| DiscountsJungle | 9.86 | ✅ | ✅ | ✅ |
Power - 2000 Watts Max x 1 @2-Ohms, 1000 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 basically 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
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
Variable Bass Boost - Bass Boost allows you to adjust the low bass within the boost range to just the way you like it
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
Low & High Level Inputs - A low level (RCA) input is measured in voltages. A high level (+/- wire) input is measured in wattages. Both essentially carry signal from your receiver to your amplifier to your speakers
Specs - Dimensions: 11.5” x 10.44” x 2.25”, Weight 7.8 lbs.
Warranty - BOSS Audio Systems provides a Powerful 6 Year Platinum Online Dealer Warranty so long as the purchase is made through Amazon.Com. We strongly encourage professional installation of this product to ensure proper and safe functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| loveyourstereo (Authorized Dealer)✔ | 6.45 | ❌ | ❌ | ❌ |
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
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
DIMENSIONS: The BE1500. 1 is 10 inches in Depth, 7 inches in Width and 2. 3 inches in Height. It weighs 4. 5 lbs.
: BOSS Audio Systems provides a Powerful 6 Year Platinum Online Dealer so long as the purchase is made through . We strongly encourage professional installation of this product to ensure proper and safe functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| always quality | 9.84 | ❌ | ❌ | ❌ |
POWER: 600 Watts Max x 2 @2-Ohms, 300 Watts Max x 2 @4-Ohms, 1200 Watts Max x 1 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
VARIABLE BASS BOOST: With Variable Bass Boost you have the control of exactly how much BASS you want to pump out to your subwoofer(s)
MOSFET POWER SUPPLY: A MOSFET is basically 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
BRIDGEABLE: Dramatically increase the power output to you speakers and subwoofers by connecting two amplifier channels
OTHER SPECS: Dimensions - Depth 10.2” x Width 6.5” x Height 2.8”, Weight – 4.5 lbs.
WARRANTY: BOSS Audio provides a powerful 6 year Platinum Online Dealer Warranty so long as the purchase is made through Amazon.com
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| DoukAudio | 9.84 | ✅ | ✅ | ✅ |
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.
Mini size with exquisite appearance, compact and all-metal design for durability and shielding the electronics from electromagnetic interference with noise rejection. Perfect design in size and function, suitable for many scenarios to increase the output level, such as home stereo system, mixer or speaker setup, karaoke, audio recording, party, live stage event etc.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Speece, Inc. | 9.88 | ✅ | ✅ | ✅ |
100 W MAX Power @ 2 Ohm x 2 Channels
50 W MAX Power @ 4 Ohm x 2 Channels
Full-Range, Class A / B Topology
Crossover Switch, Fixed Low Pass Crossover
Variable input Gain Control
Dimensions: Depth 5” x Width 9” x Height 1.8”
6 Year Platinum Online Dealer Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Speece, Inc. | 9.88 | ✅ | ✅ | ✅ |
400 W MAX Power @ 2 Ohm x 4 Channels
200 W MAX Power @ 4 Ohm x 4 Channels
800 W MAX Bridged Power @ 4 Ohm x 2 Channels
Full-Range, Class A / B Topology, MOSFET Power Supply
Low and High Level Inputs, Variable Low Pass Crossover, Variable High Pass Crossover
Variable Bass Boost, Variable Input Gain Control, Input Sensitivity Selector, Remote Subwoofer Control
Dimensions: Depth 13.5” x Width 10” x Height 2.3”
6 Year Platinum Online Dealer Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Speece, Inc. | 9.88 | ✅ | ✅ | ✅ |
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 & current precisely by removing the output current sensing loss & 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
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
Low & High Level Inputs - A low level (RCA) input is measured in voltages A high level (+/- wire) input is measured in wattages Both essentially carry signal from your receiver to your amplifier to your speakers
Specs - Dimensions 11 72” x 6 5” x 2 5” Weight 5 2 lbs
Warranty - Sound Storm Laboratories provides a powerful 6-year Platinum Online Dealer warranty so long as the purchase is made through We strongly encourage professional installation of this product to ensure proper and safe functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Speece, Inc. | 9.88 | ✅ | ✅ | ✅ |
Power - 400 Watts Max x 4 @2-Ohms, 200 Watts Max x 4 @4-Ohms, 800 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
Full Range - With a Full Range amplifier you not only have the option to run your speakers, but also your subwoofers
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
Variable Bass Boost - With Variable Bass Boost you have the control of exactly how much BASS you want to pump out to your subwoofer(s)
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
Bridgeable - Dramatically increase the power output to you speakers and subwoofers by connecting two amplifier channels
Specs - Dimensions: 13.7” x 6.5” x 2.5”, Weight: 6.1 lbs.
Warranty - Sound Storm Laboratories provides a powerful 6-year Platinum Online Dealer Warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Speece, Inc. | 9.88 | ✅ | ✅ | ✅ |
Power - 600 Watts Max x 2 @2-Ohms 300 Watts Max x 2 @4-Ohms 1200 Watts Max x 1 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
Full Range - With a Full Range amplifier you not only have the option to run your speakers but also your subwoofers
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
Variable Bass Boost - With Variable Bass Boost you have the control of exactly how much BASS you want to pump out to your subwoofer(s)
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
Bridgeable - Dramatically increase the power output to you speakers and subwoofers by connecting two amplifier channels
Specs - Dimensions 11 72” x 6 5” x 2 5” Weight 5 lbs
Warranty - Sound Storm Laboratories provides a powerful 6-year Platinum Online Dealer Warranty so long as the purchase is made through Amazon.com. We strongly encourage professional installation of this product to ensure proper and safe functionality
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
Class-D Mono-block Subwoofer Amplifier, 1200 Watts Max Power, RMS 600 Watts x 1@2Ohm; RMS 350 Watts x 1@4Ohm.
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.
You'll have full reign over your amplifier with the built-in user control panel, featuring a bass EQ, and variable adjustment tunings for gain level, low-pass filter, and subsonic filter.
Dimensions: 7.48" x 5.90" x 1.77"
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| WoofersEtc | 9.82 | ❌ | ❌ | ❌ |
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
Total Harmonic Distortion: <0.1% | Signal-to-Noise Ratio: 104dB | Variable 40-220Hz 12dB Low Pass Crossover | Variable 15-50Hz 12dB Subsonic Crossover
Variable 0-12dB 45Hz Bass Boost | Selectable 180deg Phase Shift | Dimensions: 9" W x 2.5" H x 20.50" L
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Audio Watt Store | 9.89 | ❌ | ❌ | ❌ |
1000W Max Class AB @ 2 Ohm, Stable at 2 Ohm and 4 Ohm with Bass Knob Included
S/N Ratio > 70 dB with and Input Sensitivity at 200mV-6V with Input IMP at 22k Ohms
HPF at 80 Hz ~ 1.2 kHz with LPF at 50 Hz ~ 250 Hz and Frequency Response at 10 Hz ~ 30 kHz
Chrome Plated RCA, Variable Gain Control with LED Power and Protection Indicators
Dimension ( L×W×H ): 9.5 x 2.5 x 13.2 inches
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Ardest | 5.80 | ❌ | ❌ | ❌ |
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
It is so simple, so cheap, but works perfectly. Just plug power, connect input, and loudspeakers and you have good thing for listening whatsoevery you want to listen
Fantastic pre-assembled assembled Amp provides a gain of 200. This neat amplifier module works really well for your audio experiments and prototypes. Very little distortion
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NOYITO TECHNOLOGIES | 9.85 | ✅ | ✅ | ✅ |
Onboard LM358 Chip .
100 gain of the circuit design.
Onboard10K adjustable resistance, you can adjust the magnification.
Onboard power indicator.Working voltage: 5 - 12V. Unity Gain Bandwidth (about 1MHz)
NOYITO LM358 Schematic Diagram Download： https://1drv.ms/b/s!AlzQUCOyZQhKgVqqz9lPSD5TC3L_?e=Cb7FHE
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Power Handling: 1200W @ 1-Ohm, 1000W @ 2-Ohm, 650W @ 4-Ohm; includes power and protection LED
Remote sub level; bridgeable in/out that allows you to link two amplifiers together
Gain control with 0-12db bass Boost
Built in 40-180hz low Pass filter; 18Hz variable subsonic filter
5.2V USB connector to power a Bluetooth or Wi-Fi module
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| QEBIDUM® Flagship | 9.72 | ✅ | ✅ | ✅ |
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.
On-board power indicator, the main foot of the lm386 mini audio power amplifier board chip has been led, which can directly input the audio signal.
Operating voltage:5 ~ 12V, Static low power consumption, static current approximately 2 ma, power audio amplifier suitable for battery power supply.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Creative Audio | 9.88 | ❌ | ❌ | ❌ |
2-OHM Stereo/4-OHM Mono (StereoChannels) + 2-OHM Mono stable
Variable HP/lp Crossover
Variable gain control
Mosfet power supply
Variable bass EQ
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Cryfokt | 9.61 | ❌ | ❌ | ❌ |
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
4 WAY VIDEO OUTPUT: This signal splitter support 1 channel input video signal, 4 channel video output, applicable for DVD, LCD, and TV
IMPROVED DESIGN: Built with strict quality control standards, design is improved for more durability, possess stable performance
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Boss Audio Systems | 9 |
| Sound Storm Laboratories | 6 |
| Ardest | 1 |
| Douk Audio | 1 |
| Earthquake Sound | 1 |
| Noyito | 1 |
| Powerbass | 1 |
| Qebidum | 1 |
| Recoil | 1 |
| Rengu | 1 |
We've carried out a comprehensive analysis of 20,181 reviews on variable gain amplifiers, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select variable gain amplifiers priced around $101.19, with top brands including crown, oiyagai and pyramid and boss audio systems
Our team of expert editors reviewed these high-quality items and handpicked the top 27 variable gain amplifiers for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include amazon.com and oiyagai and loveyourstereo (authorized dealer)✔ .
We are dedicated to assisting our users in finding the right amplifiers Products based on their needs, saving them considerable time when choosing which variable gain amplifiers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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