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SoundBox

SoundBox SCAP2D, 2.5 Farad Digital Capacitor for Car Audio - 2500 Watts

  • Based on 2,516 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Sep 10
Order within 19 hours and 40 minutes
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Description

Digital over-voltage protection system safeguards your audio equipment. UNLEASH YOUR SOUND - Transform your car audio experience with 2500 watts of stabilizing power. High-strength cylindrical aluminum housing ensures durability and performance. SMART POWER MANAGEMENT - Soft turn-on/off feature prevents power surges for a smooth audio experience. Bright charging status LED keeps you informed at a glance. The SoundBox SCAP2D is a high-performance 2.5 Farad digital capacitor designed for car audio systems, delivering 2500 watts of stabilizing power. Its robust aluminum housing and advanced safety features make it a reliable choice for audiophiles seeking enhanced sound quality and performance.

Capacitance: 2.5 farad


Brand: SoundBox


Material: Aluminum


Shape: Rectangular


Maximum Voltage: 2.5 volts


Capacitance: 2.5 farad


Item Shape: Rectangular


Maximum Voltage: 2.5 volts


Mounting Type: Pole Mount or Snap-In Mount


Upper Temperature Rating: 85 °C


Material Type: Aluminum


Brand Name: SoundBox


Warranty Description: 1 Year Manufacturer


Unit Count: 1 Count


Manufacturer: SoundBox


Number of Packs: 1


UPC: 859256005907


Model: SCAP2D


Part Number: SCAP2D


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Sep 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews

    • Great capacitor at a good price
Review Image by B BITTRICH
Review Image by B BITTRICH
Review Image by B BITTRICH
Review Image by B BITTRICH
Works as its supposed to, provides steady power for my amps when other wise id have voltage drops, my system has 2700 watts between 3 amps using 130 amp alternator and this capacitor i havent had any power issues even at very high volumes with heavy bass track playing, installation was simple with excellent instructions. If and when you need to discharge it i recommend holding the resister with a pair of needle nose pliers because it will get hot enough to burn you. Only thing is I wish they proved something to shield its taps from accidental touching, otherwise im very happy with the purchase. The price is reasonable too compared to others that due the same thing, accessing the the light dimming screw is simple i recommend doing it discharged then recharging to see how it looks may take a couple goes to find somewhere your happy. I havent had any issues with it negatively effecting the battery life. Sound quality is the same but instead of the bass being dialed down it stays consistent. the capacitance is accurate tested with a meter it truly is a 2.5 farad. Very well made and durable, the plastic mounts make it easy to mount although I had to take a sanding dremmel to sand down the rim of one of the mounts so I could slide it up the capacitor, the way it was kept it at the bottom side of it, the inside lip would prevent it from going any higher, after sanding it down i was able to slide both mounts anywhere on the capacitor made mounting much easier ... show more
Reviewed in the United States on July 6, 2026 by B BITTRICH
    • 1200 Watts sub
So far so good for 1200 watts of power don’t have any problem with it and it’s been months of owning it
Reviewed in the United States on August 29, 2026 by Marcus Nettles
    • Overkill but good anyway.
Review Image by Alex Hendrix
This guy is awesome. I got this thing and it is a bit overkill for what I’m using it for, but it does its job well. I used to have voltage drops low enough to literally bog my amplifier at kick drums. Nothing dims. It has an automatic turn off, so you don’t need to wire another remote wire. The size is a little big, but it’s a 2.5 farad so I’m not surprised. It gives out a fair bit of juice. I like it. ... show more
Reviewed in the United States on September 2, 2025 by Alex Hendrix
    • Inclusive to positive
A capacitor will always be a must for car audio enthusiast. Best capacitor running my 400 watts 4 ch amplifier. The only thing I do not like is the harmonic distortion it produced…
Reviewed in the United States on October 8, 2025 by DonMchardy
    • Good Amazon purchase
Great new condition and works great
Reviewed in the United States on August 2, 2026 by clayton aamodt
    • junk, literally dont buy this, served no benifit to anything.
Despite all of the reviews saying it didn't do anything, I didn't listen and bought it anyways. I had server dimming and voltage drop in my 2017 Civic. I bought this unit, and spent another $40 on wire and crimps to hook it in. It did absolutely nothing, still had voltage drop. If you are having dimming, what you need to do is either replace your battery with a a bigger AGM or Deep Cycle one, add another battery in the back to support your system, or upgrade your alternator. This will not fix a single thing, and will just lead to you wasting time and money. It also did nothing to improve sound quality, which was another claim it had. God bless amazon's return policy, allowing me to return this hunk of junk. All in all, 1/10 does nothing for your system. looks cool thought which is why it got that extra 1 point. ... show more
Reviewed in the United States on November 10, 2024 by N.
    • Works
Works Great
Reviewed in the United States on June 23, 2026 by Tilin insano
    • Price and Design can't be beat
slim design for the price is great no trouble at all, just a slight small difference on the park light diming. it cant hold big low bass kicks without dimming the power. am running a 2000 watt Epic on 2000 battery cable. on regular battery and regular OEM alternator. 2016 toyota tundra.
Reviewed in the United States on February 4, 2026 by Daniel Estrada

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