Best 2 Differential Amplifiers in 2026

Daisy
Last Updated: Feb 7, 2026

At a Glance: Our Top Picks for 2 Differential Amplifiers

Rockford Fosgate R2-300X4 Prime 300-Watt 4-Channel Amplifier
#TOP1
Rockford Fosgate R2-300X4 Prime 300-Watt 4-Channel Amplifier
9.7
PM SCORE
Rockville dB55 4000 Watt/1000w CEA RMS 5 Channel Amplifier Car Stereo Amp, Loud!
#TOP2
Rockville Db55 4000 Watt/1000W Cea Rms 5 Channel
9.6
PM SCORE
Fosi Audio TDA7498E 2 Channel 160W x2 Stereo Audio Amplifier Mini Hi-Fi Class D Integrated Amp for Passive Speakers with 24V Power Supply
#TOP3
Fosi Audio Tda7498E 2 Channel 160W X2 Stereo
9.6
PM SCORE

* 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.

Summary of the Best 2 Differential Amplifiers of 2026

Rockford Fosgate R2-300X4 Prime 300-Watt 4-Channel Amplifier

ROCKFORD FOSGATE
R2-300X4
0.00 X 0.00 X 0.00 Inches
4.85 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Rockford Fosgate 9.94

Features

The R2-300X4 full-range class-D 4-channel amplifier (1.9" x 6.8" x 10.1") is packed with features and performance to deliver power and bass on demand with 300 Watts of RMS power

Class D technology makes this amp extremely efficient by reducing demand on the vehicles electrical system (RMS Power: 50 Watts x 4 @ 4Ω OR 75 Watts x 4 @ 2Ω OR 150 Watts x 2 @ 4Ω Bridged/Mono)

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

Featuring fully adjustable 12 dB/octave high and low pass butterworth crossovers, balanced differential inputs with RCA pass through outputs, high level input capable, defeat able auto turn on circuit and top mounted controls

Famous Rockford Fosgate build quality with a full 1-year warranty when purchased from an authorized Rockford Fosgate reseller

Rockville Db55 4000 Watt/1000W Cea Rms 5 Channel Amplifier Car Stereo Amp, Loud!

ROCKVILLE
DB55
3.00 X 3.00 X 3.00 Inches
10.75 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Includes: Amplifier. Bass Remote. Birth sheet with tested power. Owner’s manual. Mounting Screws. Warranty.

Rockville dB55 4000 Watt/2000 Watt RMS 5 Channel Amplifier. CEA Compliant Power Ratings (Rated at less than 1 % distortion) (Use these CEA ratings when matching and comparing with other CEA compliant brands such as Kicker, Rockford Fosgate, etc). 2 Ohm: 120 Watts x 4 + 500 Watts x 1 <1% THD+N. 4 Ohm: 80 Watts x 4 + 300 Watts x 1 <1% THD+N.

RMS Power Ratings: (Use these RMS ratings when comparing with great brands such as Hifonics, Earthquake, Soundstream, etc). 2 Ohm 240 Watts x 4 + 1000 Watts x 1. 4 Ohm: 160 Watts x 4 + 600 Watts x 1. Peak: (The amount of power the amplifier can produce for a split second at the loudest part of a song. 2 Ohm 480 Watts x 4 + 2000 Watts x 1. 4 Ohm: 320 Watts x 4 + 1200 Watts x 1.

High-Speed MOSFET Power Supply. Rugged switching MOSFETs for Class D in CH5. Under Voltage Protection at 10V. Over Voltage Protection at 16V. Optical Coupler Class “AB” +“D” Technology. Studio-Grade Bipolar Output Stage Transistors. Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Low Pass Filter: (CH1-CH4)40Hz –4KHz /(CH5)50Hz –250Hz. High Pass Filter: 15Hz – 4KHz. Subsonic Filter: 15Hz - 55Hz.

Full IC-Controlled Protection Circuitry. Remote Dashboard Subwoofer Control. Fully Adjustable 12dB Bass Equalizer. Mute and Delay Soft Start System. 8 Volt Preamp Circuitry. Status Mode LED Indicator. Minimum THD at Rated Power: < 0.05%. S / N Ratio: >90dB. Frequency Response: 15-35KHz. Damping Factor: >100@ 100Hz. 40 Amp x3. Dimensions: (W x H x L) 9'' x 2.4' x 18.6".

Fosi Audio Tda7498E 2 Channel 160W X2 Stereo Audio Amplifier Mini Hi-Fi Class D Integrated Amp For Passive Speakers With 24V Power Supply

FOSI AUDIO
7498E
4.13 X 3.54 X 1.38 Inches
2.43 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Fosi Audio 9.85

Features

TDA7498E 320W power amplifier for home theater speaker systems with aluminum enclosed, small size but powerful, good-looking, simple functionality, and easy to operate, achieving excellent sound quality.

Fosi Audio TDA7498E 2.0CH audio integrated amplifier adopts STMicroelectronics TDA7498E chip. The TDA7498E is a dual BTL class-D audio amplifier with a single power supply designed for home speaker systems applications. Special features: smart protection, thermal overload protection, the small offset of less than 20 mV, standby and mute features, differential inputs minimize common-mode noise.

2x160W ultra power amplifier, fully integrated audio amplifier architecture with RCA input, unparalleled power efficiency, optimized for music playback with very low power losses and cool operation.HD audio quality, best-in-class audio performance - high dynamic range, low distortion, low noise.

Product specifications: 160W X 2(4 ohms, 20 Hz - 20 kHz, 0.04% THD), TDA7498E 2-channel stereo amplifier is compatible with iPod, Phone, MP3 players, TV, Echo Dot, CD players, and streaming media players, perfect for outdoor/ bookshelf/ computer/ desktop /ceiling /floor standing speakers.

What You Get: TDA7498E class D amplifier x1, User Manual x1, Power Adapter x1, AC Cord x1, our worry-free 24-month warranty, and friendly customer service.

Nvx Vadm1 500W Rms Class D Monoblock Car/Marine/Powersports Micro Amplifier With Bass Remote

NVX
818060019555
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
NVX®, Victor Fitness®, Belva® Official 9.68

Features

📢 PEAK POWER: 1000 Watts

📢 RMS POWER: 【4 ohms: 180W x 1 chan.】【2 ohms: 320W x 1 chan.】【1 ohm: 500W x 1 chan.】

📢 COMPACT: Cutting edge Micro Class D technology allows amplifier to be extremely compact. Dimensions: 6.8"L x 3.3"W x 1.5"H

📢 MARINE CERTIFIED: Our VAD Micro Amplifiers include a conformally coated, marine grade circuit board. This allows this amplifier to be installed in nearly any application.

📢 FEATURES: Bass Remote: 0 - +18 dB @ 45 Hz | LED indicator lighting | 3-way protection circuitry | Balanced Differential Inputs | Speaker-level (high-level) inputs

#TOP5

Ds18 Gen-X4500.1 Car Audio Amplifier 1-Channel Class D 4500 Watts Max Monoblock Amp - Bass Remote Knob Included - Lightweight Design - High Efficiency Rate

DS18
GEN-X4500.1
16.90 X 2.00 X 7.50 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DS18 9.86

Features

DS18 GEN-X4500.1D has the following RMS power: at 1 Ohm 1500 watts / at 2 Ohms 900 watts / at 4 Ohms 500 watts - THD Distortion 0.08%

Designed, Engineered, Developed, and Quality Controlled in the USA - Minimum THD at Rated Power: 98dB. Under Voltage Protection at 10V. Over Voltage Protection at 15V. Bass Frequency Response: 30Hz - 80Hz. Fuse Rating 40A x 4

High-Speed MOSFET Power Supply Optical Coupler Class "D" Technology. Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Low Pass Filter: 40Hz - 180Hz. Subsonic Filter: 17Hz - 50Hz. Phase Control Switch. Full IC-Controlled Protection Circuitry. Remote Dashboard Subwoofer Control. Fully Adjustable 12dB Bass Equalizer. Mute and Delay Soft Start System.

Molded power terminals have the highest current draw in the industry and they also look way nicer than other terminal styles. Power and Protection LED Indicator. LED Illuminated Logo. Dimensions: (L x W x H) 380 x 190 x 60 mm

IN THE BOX - Amplifier, Bass Remote, Owner's Manual, & Mounting Screws.

Audiosource Analog Amplifier, Stereo Power A Amplifier Amp210Vs For Home Sound Systems

AUDIOSOURCE
AMP210VS
16.50 X 13.75 X 3.80 Inches
24.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

POWER YOUR SOUND SYSTEM: 2 Channels rated at 100 watts into 8 ohms. 125 watts RMS per channel at 4 ohms. Bridge Output: 250 Watts at 8 ohms.

HIGHLIGHTS: 5-Way Binding Posts.A/B Speaker selector. Auto Signal Sensing Power On. Dual Auto-Switching Inputs.Dual-differential error amplifiers. Front panel balance and volumen controls. Front panel diagnostic LEDS. High level inputs. Line 2 Auxiliary output. Rear independent left/right master level controls. Rear mounted treble and bass controls. Triple-Darlington Power Amplifier Stages. Rack mountable (Rack ears included).

AUTOMATICALLY KNOWS WHEN TO TURN ON: This amplifier is audio sensing, meaning it automatically turns on when you start your system.

PERFECT FOR ANY HOME AUDIO SYSTEM: Our stereo amplifiers are great for home theaters and outdoor systems. Enjoy professional quality audio in the comfort of your own home.

SPECIALLY DESIGNED FOR MULTIPLE ROOMS: Our amplifiers allow you to deliver high quality sound and power to multiple rooms for the ultimate surround sound experience.

Diamond Audio Hxm1100.6D 6-Channel 1100 Watts Rms Hxm Series Marine Amplifier

DIAMOND AUDIO
HXM1100.6D
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
webtron-x 9.86

Features

Ultra-compact, high density aluminum alloy chassis provides superior thermal stability | Four layer, glass epoxy circuit board for enhanced performance and reliability | Circuit board conformal coated (water resistant) for marine applications | Full Range Class D amplifier technology

Bridgeable for high power operation (CH1+CH2/CH3+CH4/CH5+CH6) | Balanced differential inputs for superior noise rejection | Input sensitivity from 200mV to 10V accepts Line (RCA) and Speaker level input | Selectable auto-turn-on modes: Signal Sensing (VOX), 12V Remote (REM) and DC offset (DC)

Fully variable, 12dB per octave, electronic crossover | Remote level control for Channels 5 and 6 included | Built-in BTR Port (MICRO-USB) to connect our optional Bluetooth receiver-controller | Top mounted controls for convenient adjustment | Integrated soft clip light for quick system set-up | Illuminated logo

Specifications: Power Rating: RMS Power (2Ω): 150 W X 4/250 X 2 | RMS Power (4Ω): 90 W X 4/150 X 2 | Bridged (mono 1Ω): N/A | Bridged (mono 2Ω): N/A | Bridged (mono 4Ω): 300 W X 2/500 W X 1 (Ch 5/6 Bridged)

Dimensions: 12.5” L x 5.27” W x 1.75” H

Weytoll 4-Channel Audio Power Amplifier 7900W High Power Amp. Four-Way 12.0V Car Stereo Power Amplifier Class A/B

WEYTOLL
VWU5697715016062FD
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Vasdeep 5.89

Features

7900W high-power car amplifier can effectively improve the sound quality of car audio and bring a nice experience to users.

It can amplify the weak signal from the audio source or pre-amplifier, without changing the sound quality, and promote the sound of the speaker.

Premium aluminum alloy housing, exquisite and beautiful, high-end texture, strong shock resistance. With multiple cooling holes, quick heat dissipation and nice stability.

The powerful electric circulating coil ensures sufficient power during operation, and it is safer, more efficient and more stable.

Compact and ultra-thin, easy to install. Four-channel high-power design meets the needs of most users.

Taidacent Ad8130 Differential Receiver Amplifier Module Differential To Single-Ended High Common-Mode Rejection Ratio Low Noise Low Distortion

TAIDACENT
AD8130
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Shenzhen Taida Century Technology Co.,Ltd. 7.96

Features

Name: AD8130 Differential Amplifier Size: 43mm X 38mm Supply voltage range: ±5V~±12V

The differential-to-single-ended amplifier, which has a 270-MHz bandwidth and a very high common-mode rejection ratio (CMRR) at high frequencies, can also be effectively used as a high-speed instrumentation amplifier or to convert a differential signal to a single-ended signal.

Differential amplifiers can process single-ended inputs as interactive differential outputs or treat differential inputs as differential outputs. These amplifiers have two independent feedback loops that control the differential and common-film output voltages, respectively.

Chip features 1. High speed AD8130: 270 MHz, 1090 V/us (G= +1) AD8129: 200 MHz, 1060 V/us (G= +10) 2. High Common Mode Rejection Ratio (CMRR) 94 dB (minimum, DCE100 kHz) 80 dB (minimum, 2 MHz) 70 dB (10 MHz) 3. High input impedance: 1 MQ differential 4. Low noise AD8130: 12.5 nV/Hz AD8129: 4.5 nV/vHz

5. Input common mode range: ±10.5V 6 low distortion, 1V peak-to-peak (5 MHz): AD8130, -79 dBc (Worst Harmonic, 5 MHz AD8129, -74 dBc (Worst Harmonic, 5 MHz) 7. User adjustable gain G= +1 without external components 8. Supply Voltage Range: +4.5V to ±12.6V 9. Power saving mode

Top 10 differential amplifiers Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Rockville 24
Ds18 4
Rockford Fosgate 3
Audiosource 2
Diamond Audio 1
Fosi Audio 1
Nvx 1
Taidacent 1
Weytoll 1

Top 10 differential amplifiers Brands Pie Chart


We've carried out a comprehensive analysis of 12,330 reviews on differential amplifiers, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select differential amplifiers priced around $211.44, with top brands including ec buying, electronics-salon, saunders and jones & bartlett learning and weytoll

Our team of expert editors reviewed these high-quality items and handpicked the top 9 differential amplifiers for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include ec buying, electronics-salon., haxmoi store, the motor bookstore and amazon.com and vasdeep .

We are dedicated to assisting our users in finding the right amplifiers Products based on their needs, saving them considerable time when choosing which differential amplifiers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.