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Soundstream Car Audio Accessories – Power, Control, and Clarity for Your Sound System

A high-performance car audio system is more than just amplifiers and subwoofers — it’s the details that bring it all together. Soundstream car audio accessories are engineered to support, optimize, and protect your system, ensuring seamless integration and enhanced performance. From capacitors to bass knobs, equalizers, power wire kits, and RCA cable kits, these accessories provide the control and connectivity every setup demands.

Whether you’re building a custom system or fine-tuning your factory upgrade, Soundstream offers durable, efficient solutions designed for both novice users and experienced installers.

Power Delivery Essentials

Capacitors for Car Audio Systems

One of the most crucial upgrades for high-powered sound systems is a Soundstream capacitor. Designed to stabilize voltage and reduce strain on your vehicle’s electrical system, capacitors provide quick bursts of energy to your amplifier when bass hits hard. This helps eliminate dimming lights and voltage drops, ensuring consistent power delivery.

Capacitor benefits:

  • Reduces electrical strain
  • Improves system performance
  • Enhances bass output consistency

Power & Ground Wiring Kits

To keep power flowing efficiently, high-quality power wire kits are essential. Soundstream’s OFC power cables, inline fuse holders, and distribution blocks ensure maximum current transfer while protecting your components.

Core power accessory features:

  • 1 AWG and 4 AWG wiring options
  • Fuse-protected connections
  • Clean, reliable installations
  • Universal fit for most car audio builds


Signal Management & Audio Control

Equalizers & Signal Processors

Fine-tune your audio experience with a Soundstream equalizer. These EQs let you adjust frequency bands for optimal clarity across genres and listening environments. Whether you’re using an EQ controller or a full audio signal processor, these tools provide precision control over your output.

Crossovers & Filters

If your setup includes multiple speaker types (like tweeters and subwoofers), a Soundstream crossover helps separate frequencies, sending the right signals to the right speakers. This results in cleaner sound and better speaker performance.

Fine-Tuning Your Audio Experience

Bass Knobs & Remote Controllers

Control your subwoofer’s output with a dedicated bass knob or Soundstream epicenter knob. These remote controllers allow you to easily adjust bass levels on the fly, adapting your sound to road noise, music type, or listener preference.

Ground Loop Isolators & Noise Filters

Eliminate annoying hums and signal interference with ground loop isolators. These accessories are critical for achieving a noise-free listening experience, especially in complex, multi-component installations.


Installation Accessories & Connectivity

RCA Cables and Speaker Wire

Clean connections are key to clean sound. Soundstream offers RCA cable kits, 12 AWG speaker wire, and audio harnesses made with oxygen-free copper (OFC) for low resistance and high conductivity.

Additional audio accessories:

  • Terminal blocks
  • Remote turn-on leads
  • Fuse holders and inline fuses
  • Speaker wire connectors

These components are designed to simplify installation while maximizing system safety and audio quality.

Built for Every Setup

Soundstream’s accessory lineup supports:

  • Custom sound system builds
  • Factory upgrades
  • Professional installs
  • DIY car audio projects

Whether you're fine-tuning a daily driver or assembling a show-quality vehicle, Soundstream accessories ensure reliable, clean performance from end to end.

Frequently Asked Questions (FAQs)


Do I need a capacitor for my car audio system?

If you're running a powerful amplifier or experiencing voltage drops (like dimming lights when bass hits), a Soundstream capacitor can help stabilize power and protect your electrical system.

What does a bass knob do in a car audio setup?

A bass knob lets you control your subwoofer's output without adjusting your head unit, making it easier to tune your system on the go.

Can I install these accessories myself?

Yes, many Soundstream car audio accessories are designed for user-friendly installation. However, if you're working with high current or complex systems, professional installation is recommended.

What is the benefit of OFC wiring?

Oxygen-free copper (OFC) offers lower resistance and better conductivity than standard copper-clad aluminum (CCA), making it ideal for high-power audio systems.

Are Soundstream equalizers compatible with any system?

Yes. Soundstream equalizers and signal processors are compatible with most aftermarket head units and amplifiers. Always check the specifications for compatibility with your exact setup.

Do I need a ground loop isolator?

If you hear a whining or humming noise that increases with engine RPM, a ground loop isolator can help eliminate interference and improve sound quality.