Best 2 Differential Amplifiers in 2026

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

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.

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.

📢 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

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.

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.

♥Introduction: The AD620 is a low-cost, high-accuracy instrumentation amplifier that requires only one external resistor to set the gain over a gain range of 1 to 10,000. Ideal for portable (or remote) applications. With high accuracy, low offset voltage, and low offset drift, the AD620 is ideal for precision data acquisition systems such as electronic scales and sensor interfaces. Also features low noise, low input bias current, and low power consumption. The module has a fixed voltage output.

♥Basic Features: ✭Module Name AD620 Instrument Programmable Amplifier ✭Module size:50mm * 50mm ✭Module power supply: 5V-24V ✭Module input signal type: single-ended signal or differential signal ✭Module signal input and output range: the input signal range is within 100 microvolts of the power supply, and the output signal range is within the power supply ✭Module bandwidth: AD620: 120KHz (G=100), AD623: 800KHz (G=1), AD620/623 is lower than 50KHz at high gain, and higher than 1MHz at low gain

♥ Other Features: ✭Module gain: When there is no solder slip, the AD620 will zoom by 10 times by default, and the AD623 will zoom by 20 times by default. During welding slip, AD620: G=1+50K/Rg, AD623: G=1+100K/Rg ✭Maximum magnification of the module: more than 2000 times (actual measurement), due to the large gain of the waveform frequency band, it is recommended to use multi-stage amplification with high gain ✭Fixed output voltage: 5V-10V (default delivery 5V)

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

Name: THS4131 Fully Differential Amplifier Size: 45mm X 34mm Supply Voltage Range: 5V Single Supply ±15V Dual Supply

This module can implement single-ended to differential, single-ended input, and double-ended output. Has high performance, low noise, wide power supply voltage range and other advantages.

The THS413x consists of a true fully differential signal path from input to output. This design produced excellent common-mode noise suppression wells that improved total harmonic distortion.

POWER ON: Atom series amps are built with sequenced delays to eliminate Residual power-up/power-down pops. Equipped with differential RCA inputs to isolate 12v audio to ground.

DESIGN: A Hybrid Aluminum Alloy Heatsink for optimum heat dissipation combined with an intricate MOSFET power supply full of Audiophile Grade IR Transistors. A Military Grade SMT PCB for Dynamic Performance finishes the stack.

SIGNAL: Volume low ESR Capacitance Banks compensate for power supply ripple. A set of individually regulated Preamp/Crossover components ensures signal purity.