Speakers
Coaxials combine drivers in one assembly. Components separate the woofer and tweeter. Pro-audio midrange and horn drivers need a system designed around their frequency range.
Compare speakers ↗

Speedzone / Audio knowledge center
A better system starts with a better plan. Learn what to choose, what to check, and how to bring it together—for the street, water, trail, and open road.
Start with where you ride
An enclosed cabin, a boat at anchor, and a Slingshot on the road ask different things of an audio system. Choose your starting point.
Learn / Choose / Shop
Build for clarity, balanced sound, stronger bass, or open-air output. These are the building blocks that turn individual products into a working system.
Coaxials combine drivers in one assembly. Components separate the woofer and tweeter. Pro-audio midrange and horn drivers need a system designed around their frequency range.
Compare speakers ↗Compare continuous RMS output at the intended impedance. Four-channel amps power cabin speakers; a suitable mono amp powers a subwoofer. Plan electrical capacity and ventilation.
Compare amplifiers ↗Choose a subwoofer and enclosure together. Check net air volume, sealed or ported requirements, mounting depth, and the final wired impedance.
Explore bass options ↗Decide whether to replace the radio or keep the factory source. A screen or receiver may need a dash kit and a compatible interface to retain vehicle features.
Explore radios & kits ↗Signal processors and line-output converters help connect and tune a system. Factory amplifiers, filtered signals, chimes, and controls need the right integration plan.
Explore processing ↗Complete the system with power and ground cable, fuses, speaker wire, interconnects, adapters, secure mounts, and the appropriate protection for the environment.
Finish the installation ↗A clean daily-driver upgrade, an open-air bike system, and a custom high-output build need different combinations of speakers, crossovers, power, and mounting.
Plan the complete system
Ready for a custom stereo? Follow the complete system guide for speaker and amplifier choices, bass and enclosure planning, wiring, installation and tuning. Try the build planner, impedance calculator and box-volume helper.
Build Your Audio System →Explore the catalog
Browse the audio and installation brands found in our reviewed active catalog. Categories describe the listings available here; they are not a claim that every brand serves every application.
Speakers
Explore American Bass ↗Bass & enclosures
Explore Atrend ↗Bass & enclosures · Speakers · Wiring & installation
Explore Audio Legion ↗Wiring & installation · Amplifiers · Bass & enclosures · Signal processing · Speakers
Explore AudioControl ↗Wiring & installation
Explore Audiopipe ↗Speakers · Amplifiers
Explore Autotek ↗Speakers
Explore Beyma ↗Amplifiers
Explore Boog ↗Receivers & integration · Speakers · Bass & enclosures
Explore Boss Audio ↗Speakers · Amplifiers
Explore Cadence ↗Speakers
Explore Crunch ↗Bass & enclosures · Wiring & installation
Explore DB Drive ↗Signal processing · Amplifiers · Bass & enclosures · Speakers · Wiring & installation · Receivers & integration
Explore DS18 ↗Wiring & installation
Explore EchoMaster ↗Speakers
Explore FaitalPro ↗Amplifiers · Signal processing
Explore HAWG WIRED ↗Receivers & integration
Explore Jensen ↗Receivers & integration
Explore K2 Industries ↗Amplifiers · Speakers · Bass & enclosures · Wiring & installation · Signal processing
Explore Massive Audio ↗Receivers & integration · Wiring & installation · Amplifiers · Signal processing · Speakers
Explore PAC ↗Bass & enclosures
Explore Pioneer ↗Speakers · Signal processing · Amplifiers · Bass & enclosures · Wiring & installation · Receivers & integration
Explore PRV Audio ↗Bass & enclosures
Explore Q Power ↗Speakers
Explore Quantum Audio ↗Speakers · Signal processing · Amplifiers · Receivers & integration · Bass & enclosures
Explore Soundstream ↗Wiring & installation · Signal processing · Bass & enclosures · Amplifiers · Receivers & integration · Speakers
Explore Stinger ↗Amplifiers
Explore Taramps ↗Amplifiers · Signal processing · Speakers · Wiring & installation · Bass & enclosures
Explore Timpano ↗Signal processing · Amplifiers · Speakers
Explore Wet Sounds ↗Rockford Fosgate and Rockford Fosgate UTV collections exist in our catalog, but no active products were found in this review. Ask about availability before planning your build. Brand availability and product selections change.
Vehicle & application reference
Start with year, make and model. See documented speaker sizes and locations, then compare available speakers by size. Stereo harnesses and PAC interfaces have their own vehicle-specific requirements.
Speaker specifications come from Scosche vehicle guides, its 2013 application guide, and selected Crutchfield vehicle guides. PAC interface numbers come from PAC manufacturer tables and the detailed vehicle-application tables on our PAC product pages. Choose the matching speaker configuration; review every interface’s required and excluded equipment. Coverage is still expanding: missing sizes or interfaces are marked “needs confirmation”. Factory options can change fitment; a vehicle name in the selector is not a fitment guarantee.
Search all documented applications. Sizes are in inches unless otherwise stated. Multiple sizes represent different factory locations or options; the source guide gives the application context.
Speaker size reference
Nominal speaker size describes a product class. The actual cutout, basket, mounting depth, and grille clearance determine whether the installation works.
| Nominal size | Where you may encounter it | What to check |
|---|---|---|
| 3.5" / 4" | Small dash or compact locations | Often limited bass output. Check clearance and intended frequency range. |
| 4 × 6" / 5 × 7" / 6 × 8" | Oval factory openings | A different oval or round size may need an application-specific bracket. |
| 5.25" / 6.5" / 6.75" | Door speakers, components, pods | Nominal sizes overlap; mounting holes, basket diameter, and depth differ. |
| 6 × 9" | Some doors, rear decks, saddlebag conversions | Check grille clearance and whether the location needs a cut-in kit. |
| 8" / 10" / 12" and larger | Subwoofers, towers, or custom pro-audio | Diameter does not tell you driver purpose or enclosure compatibility. |
A 6.5" midrange, 6.5" coaxial, and 6.5" subwoofer do different jobs. Review the intended frequency range, mounting dimensions, and system requirements on the product page.
Cars / Trucks / SUVs
Start with the front stage, correct speaker adapters, and suitable power. Match the existing locations before adding rear fill or replacing every speaker.
Browse speakers ↗Review factory amplification, chimes, cameras, steering controls, and active noise cancellation before replacing the radio or adding an amplifier.
Browse integration ↗Measure cargo and under-seat space. Match the exact cab and model when choosing a vehicle-specific enclosure, and check the amplifier and wiring requirements.
Browse bass & enclosures ↗Boats / Bikes / Trails / Open air
Open-air systems deserve their own plan. Account for wind and engine noise, exposure, secure mounts, vibration, and the power your vehicle can supply.
01 / Marine & boats
Plan separate listening zones for the helm, cabin, and tower. Choose products with documented exposure ratings and installation requirements for their actual mounting location.
02 / Motorcycles
Fairing speakers, saddlebag conversions, and compact amplifiers need a motorcycle-specific plan. A touring-bike kit must match the year, radio generation, lid design, and mounting location.
03 / ATV & UTV
Choose a sealed soundbar, cage-mounted tower setup, vehicle-specific pods, or a complete system around the exact ATV or UTV platform.
04 / Slingshot & open-air vehicles
Build around the dash, side panels, and rear storage of your exact Slingshot generation. Choose output, exposure protection, and amplifier mounting for an open cockpit.
Complete the system
Universal accessories belong in the plan—but still need to match the system, space, and environment.
Cables, boxes, and mounts should match the current demand, speaker design, available space, and exposure of your application.
Answers before checkout
Match the exact year, make, model, trim, speaker location, and factory sound package. Then check basket dimensions, mounting depth, grille clearance, connectors, impedance, and required adapters. A nominal size by itself is not a fitment approval.
Often, but the interface must suit the exact system. Factory amplification, active noise cancellation, filtered channels, and warning chimes can affect the installation. Review the vehicle-specific integration requirements before choosing a converter or amplifier.
Only when the exact product and installation meet the intended use. Check water and dust ratings, UV exposure, corrosion protection, hardware, and the mounting environment. A marine product label is not a promise that every component can be submerged.
Universal means the part is not designed for one exact vehicle. Verify outside dimensions, secure mounting, access, ventilation, and the subwoofer’s cutout, depth, air-volume, and sealed or ported requirements.
Use continuous RMS ratings to compare amplifier output and speaker power handling at the actual wired impedance. Also consider sensitivity, crossover settings, distortion, and the available electrical system.
The lookup includes catalog application records and separate manufacturer-checked installation references. Coverage varies by vehicle and factory sound package. Use the fitment request with your exact vehicle, factory sound package, speaker location, and photos or measurements where possible. We can review suitable choices before you order.
Some projects can, but a midrange or compression driver may need separate tweeters, suitable crossovers, amplification, or custom mounting. Start with the sound goal and intended frequency range; compare complete systems rather than wattage alone.
Share the application, exact vehicle, factory sound system, listening goal, and budget.
Reference review: October 9, 2026. Examples use PACDS18 RZR specificationsDS18 motorcycle specificationsDS18 Slingshot specificationsAudioControl power guidance. Catalog application records require equipment and installation review.