American Bass Biker Series Speaker 8”

American Bass BK-8 Biker Series 8" Speaker 400W RMS 4 Ohm

American Bass BK-8 Biker Series 8" Speaker 400W RMS 4 Ohm
Sold by AudioSellerz.com.

The American Bass BK-8 Biker Series 8" Speaker is built for riders and car audio customers who need loud, clear midrange output that can cut through wind, road noise, exhaust, and strong bass. This 8" driver is a strong choice for motorcycle fairings, saddlebag builds, side-by-sides, powersports systems, custom doors, speaker pods, and loud mids and highs setups.

Rated at 400 watts RMS and 800 watts max power at 4 ohm, the BK-8 gives customers serious output from an efficient 8" speaker platform. With 96dB sensitivity and a 70Hz-18,000Hz frequency response, this speaker is designed to deliver strong vocals, midrange punch, and upper-frequency detail in real-world riding and driving conditions.

The BK-8 uses a carbon fiber cone, rubber surround, high-grade ferrite magnet, and a 1.5" CCAW voice coil. The 8" cone size helps add more authority and output than many smaller speaker options, making it a strong fit when the system needs to stay loud and clear in open-air or high-noise environments.

If your bass is strong but your vocals and mids are getting buried, a louder 8" midrange speaker can help bring the system back into balance. The American Bass BK-8 Biker Series is made for customers who want their music to sound louder, clearer, and more complete.

If you are building the rest of your speaker setup, compare more car audio midrange speakers, browse the full car audio speaker collection, or match your speakers with a 4 channel car audio amplifier.

Key Features

• American Bass BK-8 Biker Series 8" speaker
• 400 watts RMS power handling
• 800 watts max power handling
• 4 ohm impedance
• 96dB sensitivity
• 70Hz-18,000Hz frequency response
• Carbon fiber cone
• Rubber surround
• High-grade ferrite magnet
• 1.5" CCAW voice coil
• Strong option for motorcycles, powersports systems, custom doors, speaker pods, and loud mids and highs

Product Specifications

• Brand: American Bass
• Model: BK-8 Biker Series
• Speaker Type: Midrange speaker
• Speaker Size: 8"
• RMS Power Handling: 400 watts RMS
• Max Power Handling: 800 watts max
• Impedance: 4 ohm
• Sensitivity: 96dB
• Frequency Response: 70Hz-18,000Hz
• Cone: Carbon fiber cone
• Surround: Rubber surround
• Voice Coil: 1.5" CCAW voice coil
• Magnet: High-grade ferrite magnet
• Equivalent Volume Vas: 15.5 L
• Free Air Resonance Fs: 66.9Hz
• Mechanical Factor Qms: 4.6
• Electrical Factor Qes: 0.92
• Total Factor Qts: 0.78
• Cone Area Sd: 219 cm²
• Mechanical Mass Mms: 24.3 g
• BI Factor Bl: 5.88 Tm
• DC Resistance Re: 3.20 ohms
• Overall Diameter: 8.3" / 210 mm
• Front Baffle Cutout: 7.3" / 185 mm
• Mounting Depth: 3.3" / 84.5 mm
• Overall Depth: 3.8" / 96.4 mm
• Weight: 5.5 lb

Great For

• Motorcycle fairing speaker upgrades
• Saddlebag and lid speaker installs
• Side-by-side audio systems
• Powersports speaker builds
• Custom door speaker setups
• 8" midrange speaker upgrades
• Speaker pods and custom panels
• Loud mids and highs systems
• Open-air systems that need stronger projection
• Car and truck builds that need loud, clear vocals

Built for Motorcycle and Powersports Audio

Motorcycle and powersports audio systems need speakers that can stay loud and clear in tougher listening environments. Wind, road noise, exhaust, helmets, and open-air riding can make weak speakers disappear fast. The American Bass BK-8 Biker Series speaker is designed to help vocals, guitars, drums, and instruments stay present when the system needs to play loud.

The carbon fiber cone and rubber surround make this speaker a strong fit for real-world use, while the 8" size helps provide more output and body than smaller speakers. This makes the BK-8 a strong choice for customers building louder fairings, saddlebag lids, pods, doors, and custom panels where midrange output matters.

Why Choose an 8" Midrange Speaker?

An 8" midrange speaker gives you more cone area than many smaller speaker sizes, which can help add more volume, presence, and midrange authority. That makes the BK-8 a strong option when you want vocals and instruments to stay loud beside subwoofers, exhaust noise, wind noise, or road noise.

This size is also useful in custom car and truck builds where the factory speaker locations are being upgraded or custom panels are being made. When matched with the right amplifier and crossover settings, the BK-8 can help the system sound louder, cleaner, and more balanced.

Build the Speaker System Correctly

The American Bass BK-8 should be matched with the right amplifier power, crossover settings, wiring, speaker count, and final impedance. This speaker is made for loud mids and highs, but proper setup still matters.

Use clean amplifier power and avoid clipped signal. A poor tune, wrong crossover point, loose wiring, or bad mounting can make a good speaker sound harsh or fail early. A properly installed motorcycle or car audio speaker system should be loud, clear, and controlled.

For best results, pair this speaker with a properly matched 4 channel car audio amplifier and quality car audio speaker wire.

Installation Notes

Before ordering, check your available mounting depth, cutout size, grille clearance, fairing clearance, saddlebag or lid space, door clearance, window clearance, and speaker location. This speaker lists a 7.3" front baffle cutout, 3.3" mounting depth, and 3.8" overall depth, but every bike, vehicle, pod, lid, and custom install can be different.

When installing, make sure the speaker is mounted securely and wired correctly. Keep speaker wire away from sharp metal, moving parts, heat, moisture, pinch points, hinges, and any area where the wire can be damaged during normal use.

For more help planning wire size, fuse protection, and install layout, read the Audio Sellerz car audio wire gauge and fuse guide.

Helpful Speaker Setup Guides

Learn the difference between full-range, midrange, midbass, and tweeter speakers, set your system with the speaker crossover and tuning guide, and set clean power with the amp gain guide for mids and highs.

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Dealers, shops, installers, builders, and resellers who want to sell American Bass and many other car audio products Audio Sellerz offers can apply for a wholesale/dealer account through AudioResellerz.com.

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