style:4 Farad Today’s car audio amplifiers need huge amounts of current. Often a vehicle’s electrical system is unable to provide it. With your car’s air conditioning running, the factory electrical charging system may already be operating at only 70% of full capacity. When a bass note hits or when playing your system very loudly, there may not be enough electrical energy to power your amplification system properly causing your music to sound strained and distorted. Rockville capacitors are designed to store enough electrical current and to release this energy extremely fast due to their superior design and low internal resistance. In addition, as quick as your amplifier needs a new current surge, your Rockville capacitor will provide it. This continuous cycle of power discharge and recharge guarantees flawless bass playback. 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. Unit dimensions (Inches): 10.67” L x 5.32” W x 3.54” H Includes Clear Lucite Unbreakable Mounting Brackets, hardware and charging resistor with instructions
J**E
Claims to be 4 farad, performs like 1 farad.
The general rule of thumb with capacitors is 1 farad per 1000 watts, and the unit resolved my headlight dimming issue while using my 600 watt max output/200 watt RMS mono subwoofer amp but upon upgrading to a 2 channel amp with the same specs (600w max/200 rms x2) the capacitor failed to manage the AMP draw. I've used other 4 farad capacitors with higher wattage amps without issue but decided to try this brand out because they seemed to have good reviews and a nice price. Unfortunately I got what I paid for. I paid a 1 farad price for a 4 farad capacitor and got 1 farad performance.
C**.
Do it
I've got a kicker 1200 runnin 1 ohm to 2 skar 10s. Kept shutting off at high bass due to lack of power. Got second battery, helped but not enough. Head lights dim and amp shut off at 25/35. With this capacitor I can now go 28 29/35. May seem small but it's a huge difference. I was sus about it at first everyone said its pointless need a mechman alternator but I went for it, figured worst case it'd help with headlight dim, but it raised my max power by at least 15 percent. amps or volts or whatever my volt needle is much happier (:
M**H
IF YOUR SKEPTICAL ABOUT CAPACITORS, THIS ONE WILL MAKE YOU A BELIEVER!
I have always been skeptical of capactiors and if their even useful. Switched out my kenwood 12 in subs with some rockville v2 putting out more power then my car could give. Radio would cut out at basedrops, starting having all kind of electrical malfunctions(lights dim, tachometer lights turning off and on, blown headlights, and finally heater quit working in car. Hooked this up and all those problems went away can play speakers on max volume with no distortion or cutting out... And It sounds complelty crazy but my heat started working again immediately after the install. A must have for high output sytems especially in older cars which stock alternator is not putting out enough juice for extra amperage!
J**C
It really works!
Wow! That's all I can say! I had my system over a year except capacitor and I was having alot of issues such as dimming lights,battery! So I got me the 4 farad capacitor and I'm telling you it's like night and day! I love Rockville and their products! Much love Rockville!
Z**K
Almost perfect. Still worth the money.
Bigger than i thought has a nice weight to it looks very nice and has a blue led setup that does some flashing now and then for show along with the volt meter although doesn't matter to much cuz it is hidden away in my trunk. The volt meter is definitely convienant and when compared to my multi meter they both read very close to the same readings. The only thing i dont like so much is that i wish the terminals were a bit stronger it is very easy to strip out the allen key head.
B**S
Great buy. Especially for thw price
Keep my voltage from dropping low. Didn't stop my lights from dimming completely, but it definitely helped with it. I have an 1,100 watt amp hooked up to this and it's pretty awesome. Voltage never drops below 13.9. Even when I'm slamming my subs
M**Z
So far so good.
Easy to install, First charge was simple with the small resister provided. Love the mounting bracket, makes it easy to install on any angle. The item was surprising heavy for what I expected which is an indication of a quality build. Blue LED's light up when its discharging, You can easily watch the capacitor discharge take place with deep bass hits at high volume as this temporary drops the available amperage to the car audio amp particularly when the car is only at idle, the LED display is accurate according to my miuitimeter. Don''t forget to buy a inline fuse and place this as close to the car battery as possible. Mine is a 50amp fuse as my amp is rated at 50amps and make a good ground for the ground wire, you will need to buy some more wire connectors as this kit only comes with x2 for connecting to the capacitor itself and not your amp or the ground. I
T**I
NOT TRULY 4 FARADS
I paired this with my ‘supposedly’ 4,000 watt same brand, Rockville, 5 channel amplifier. My car has auto stop/start so I needed a capacitor to stop the music from cutting out. It wouldn’t do it every time, just about 1/3 of the time. Once I added the Rockville 4 farad capacitor it would do it almost every time. The build quality seems nice, but I think they’re lying on its power.
N**K
Spiked my battery to 20 volts.
Not sure why but it caused my battery to overcharge. Spiked the voltage to 20v. Its a 24 volt capacitor it broke the voltage regulator on my alternator causing my battery to spike to 20 volts. Alternator was brand new.
W**
No instructions
There was no instructions for this unit and if you dont know anything about capacitors they can be dangerous if not fully understood.
M**B
Quality built
Product is exact and quality made looks super nice and works great if your cars lights are dimming when the bass hits buy one of these
D**L
Five Stars
works as advertised easy set up
M**H
Save your money
Don’t buy
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