

Rockville RXC4D 4 Farad/12 Volt Digital Power Capacitor+RWK41 4 AWG Amp Wire Kit
Key item features
- Capacitor Power: The Rockville RXC4D is a 4 Farad/12 Volt stiffening capacitor with a 24 Volt surge capacity, designed to provide stable current for car audio amplifiers.
- Digital Display: Features a Lucite encapsulated display and logic circuitry, including a red LED digital voltage display and blue LED flashing charge and discharge metering.
- Capacitor Protection: Incorporates IC controlled circuitry with built-in negative polarity protection for enhanced safety and reliability.
- Wire Kit Composition: The RWK41 4 AWG amp kit includes 100% copper RCA cables, 17-foot translucent blue SuperFlex power cables, and a 60 Amp AGU gold-plated fuse.
- Wire Durability: Wires are constructed with a soft, abrasion-proof PVC outer jacket, offering improved flexibility and resistance to grease, oil, and extreme temperatures from -40 to 220 degrees F.
- Included Accessories: The package comes with clear Lucite unbreakable mounting brackets, hardware, a charging resistor, a gold-plated AGU heat-resistant fuse holder, and various connectors.
Specs
- Manufacturer part numberRXC4D+RWK41
- Vehicle modelRXC4D+RWK41
- Automotive electrical part & accessory typeWires
- Vehicle fitment typeSpecific
- BrandRockville
- Rec. useAutomotive
- Free shipping
Free 30-day returns
How do you want your item?
About this item
Product details
Package Includes:
(1) Rockville RXC4D 4 Farad Car Capacitor
(1) Rockville RWK41 Complete 4 Gauge Wire Kit
Description of RXC4D:
Today’s car audio amplifiers need huge amounts of current. Often a vehicle’selectrical system is unable to provide it. With your car’s air conditioningrunning, the factory electrical charging system may already be operating at only70% of full capacity. When a bass note hits or when playing your system veryloudly, there may not be enough electrical energy to power your amplificationsystem properly causing your music to sound strained and distorted.
Features:
Rockville RXC4D 4 Farad Capacitor
4 Farad/12 Volt Stiffening Capacitor with 24 Volt Surge Capacity
Lucite Encapsulated Display and Logic Circuitry.
Red LED Digital Voltage Display.
Blue Led Flashing Charge and Discharge Metering.
IC Controlled circuitry with negative polarity built-in protection.
Dimensions: 13" long x 3.75" wide x 7" high
Includes Clear Lucite Unbreakable Mounting Brackets, hardware and chargingresistor with instructions
Videos of RWK41:
The Rockville RWK41 4 AWG (American Wire Gauge) amp kit has the followingdifferences over other amp kits on the market at this price point.
1. Our RCA cables are 100 % copper. These are top of the line RCA cables
2. Better Resistance: The only thing that really matters with wires is theresistance rating. This is a measurement of conductivity and how much signal isloss per foot of wire. Since Rockville wires are made with around 3 times asmuch copper as any other wire at this price point, these wires had a much betterresistance rating which means they will transfer more power to your amps thanthe other brands.
3. We do not cheat you on the thickness of the wire. These are standard Americanwire gauge thickness. This is another reason our conductivity is better thananything else at this price point. Other brands in the market place write 4gauge, but cheat you on the thickness. We are honest about the thickness.
4. The Rockville amplifier installation kits feature a new soft abrasion proofinsulating jacket. This rugged PVC outer jacket allows for 100% improvedflexibility over standard power cables making them extremely easy to routethrough your vehicles interior, and it maintains exceptional resistance togrease and oil. The PVC outer jacket can with-stand an extreme temperature rangeof -40 to 220 degrees F.
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, Spades, andGrommets
Specifications
Manufacturer part number
Vehicle model
Automotive electrical part & accessory type
Vehicle fitment type
Warranty
Warranty information
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Customer ratings & reviews
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Showing 1-2 of 2 reviews
Verified Purchase
Save your money they don't work
We ordered 2 of them for 2 of our vehicles to see if it helps to stop our headlights from dimming with every thump of bass in 1 vehicle, and to prolong the life of the new alternator in another. Unfortunately we still see the headlights dimming in the first vehicle, which doesn't make us optomistic about the other one being able to prolong the life of the alternator. The can that's installed shows it's holding over 12v of power, but like I said the headlights are still dimming so this can is doing absolutely NOTHING! I want my money back! We wasted $50 each on this cr p. If that was the case I could have bought the $5 capacitors!
Verified Purchase
on the order it says 12 volt but they sent me a 24 volt , now i must return .





