Daisy
Last Updated: Feb 7, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Rockford Fosgate | 9.94 | ✅ | ✅ | ✅ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Audio Watt Store | 9.89 | ❌ | ❌ | ❌ |
The R2-750X5 full-range class-D 5-channel amplifier (1.9" x 6.8" x 11.2") is packed with features and performance to deliver power and bass on demand with 750 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 + 200 Watts x 1 @ 4Ω OR 100 Watts x 4 + 350 Watts x 1 @ 2Ω OR 200 Watts x 2 + N/A @ 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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
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".
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| NVX®, Victor Fitness®, Belva® Official | 9.68 | ✅ | ✅ | ✅ |
📢 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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Audiosavings | 9.74 | ❌ | ❌ | ❌ |
Package Includes: (1) RockvilIe RXD-T2 Micro Class D Car Amplifier 2400w 2 Channel 2x400W CEA Rated. (1) RockvilIe RWK41 4 Gauge Complete Car Amp Wire Kit w/RCA's. RockvilIe RXD-T2 Micro Class D Car Amplifier 2400 Watt 2 Channel 2x400W CEA Rated. Full-Range Class D Amplifier Architecture. CEA Compliant Power Ratings: 800 Watts (2 x 400 Watts) at 4 ohms and 1% THD+N
1200 Watts (2 x 600 Watts) at 2 ohms < 1% THD. 1200 Watts (1 x 1200 Watts) bridged @ 4 Ohms < 1% THD. Peak Power Ratings: 2400 Watts: (2 x 1200 Watts) @ 2 Ohms and (1 x 2400 Watts) @ 4 Ohms bridged. Fully marine grade amplifier. Protected from moisture, saltwater, UV, bumps, vibrations, heat, cold, and more. Double Sided Surface Mount (SMD) PCB Design. High-Speed MOSFET Power Supply
Studio-Grade Bipolar Output Stage Transistors. 2-Ohm Stable Stereo. 4-Ohm Mono Bridgeable. Mute and Delay Soft Start System. Full IC-Controlled Protection Circuitry. RCA Preamp Line Output. Status Mode LED Indicator. 8 Volt Preamp Circuitry. 4 Gauge Lucite Encapsulated Power/Ground Terminals. 12 Gauge Lucite Encapsulated Speaker Terminals. Fully Adjustable 12dB / Octave Crossover
Low Pass 50Hz - 250Hz. High Pass 50Hz - 250Hz. Fully Adjustable 12dB Bass Equalizer with Differential Circuitry. Minimum THD at Rated Power: < 0.05%. Frequency Response: 15Hz - 20KHz. S / N Ratio: 100dB. S/N Ratio: >97dB. Damping Factor: > 200 @ 100Hz. 3 x 35 Amp Fuses. Dimensions: (W x H x L) 6.7" x 1.98" x 12.25". Features: 1 17 High Grade Twisted Pair of 100% Copper RCA Cable
17 4 Gauge Translucent Blue SuperFlex Power Cables. 17 18 Gauge Blue Remote Cable. 17 16 Gauge Clear Speaker Wire. 3 4 Gauge Clear SuperFlex Ground Wire. Gold Plated AGU Heat Resistant Fuse Holder. 60 Amp AGU Gold Plated Fuse. 7 Split Tube Loom. Accessories Included: Wire Ties, Ring Terminals, Butt Connectors, S pades, and Grommets
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Rockford Fosgate | 9.94 | ✅ | ✅ | ✅ |
Our compact (1.5" x 4.25" x 6.75") PBR400X4D is small enough to fit in just about any application but packs a Punch with 400 Watts RMS of power!
Versatile design can be used in either 2 or 4 channel configurations (RMS Power Output: 50 Watts x 4 @ 4-Ohm or 100 Watts x 4 @ 2-Ohm or 200 Watts x 2 @ 4-Ohm Bridged)
Ultra efficient Class D full range design produces maximum power with minimal strain on the vehicle's electrical system. A great choice for both mobile installs as well as motorcycles and recreational vehicles
High level inputs with auto-on feature as well as differential RCA inputs along with selectable fixed 12dbB/Octave Butterworth Crossovers make the PBR400X4D amp compatible with just about any installation
Famous Rockford Fosgate build quality insures that the PBR400X4D will handle everything you throw at it! Full 1-year parts and labor warranty when purchased from an authorized Rockford Fosgate reseller
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| webtron-x | 9.86 | ✅ | ✅ | ✅ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Shenzhen Taida Century Technology Co.,Ltd. | 7.96 | ✅ | ✅ | ✅ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| waguandangdianzishangwu | 3.78 | ❌ | ❌ | ❌ |
Usually the CTRL pin is connected to the MUTE pin of Bluetooth.
The amplifier board is in ACF-1 mode by default. When using the CTRL mode setting, solder R5 off.
The appearance and color of different batches , which does not affect the .
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| EpsilonElectronicsInc | 5.00 | ✅ | ✅ | ✅ |
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.
SPECS: Integrated variable 12dB High Pass, Low Pass, & Subsonic Crossovers. Delivers a 200mV-6V Low-Level RCA & High-Level Signal Input. Adjust to 12dB Bass Boost to increase Low Octave harmonics.
DIMS: 10" LENGTH x 6" WIDTH x 2.25" HEIGHT
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Rockford Fosgate | 3 |
| Rockville | 2 |
| Diamond Audio | 1 |
| Nvx | 1 |
| Precision Power | 1 |
| Taidacent | 1 |
| Viupolsor | 1 |
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