B2 Audio 4-Ohm 150W RMS Bullet Mid-Range RIOT 8" Speaker Pair B2-RIOT8P OPEN BOX

• High-Impact 8" Midrange Performance: Engineered for aggressive sound clarity and loud output, the RIOT8P speakers deliver intense midrange frequencies with 150W RMS power and 97 dB sensitivity.
• Heavy-Duty 1.5" Voice Coil: With a KCCAW voice coil and 23 oz magnet, you get responsive, punchy performance that thrives under pressure in high-output systems.
• Optimized Frequency Response: Covers a wide 80–10,000 Hz range for full-bodied midrange detail. Perfect for high-SPL builds or pairing with tweeters and subs.
• Easy Fit with Rugged Design: Standard 8" chassis with a 3.23" mounting depth fits most enclosures and baffles. Durable construction stands up to competitive audio demands.
• Treated Paper Cone – UV and moisture resistant for added durability (not fully waterproof).
• OPEN BOX: In perfect working condition Have been tested and work as they should. Has been mounted Small scratches Install Marks on speaker mounting holes. Not subject to returns. They are sold "As Is". All requests for returns will not be accepted.

B2 Audio 4-Ohm 150W RMS Bullet Mid-Range RIOT 8" Speaker Pair B2-RIOT8P OPEN BOX

In perfect working condition

Have been tested and work as they should.

Has been mounted

Small scratches

Install Marks on speaker mounting holes.

Box has been opened (see pic #2)

Open-box items are not subject to returns. They are sold "As Is". All requests for returns will not be accepted.

This Listing Includes:

• (2) B2 Audio RIOT8P 8" Bullet Mid-Range Speakers

Prepare to ignite your sound system with the B2 Audio RIOT 8" Bullet Mid-Range Speakers — engineered for power, precision, and attitude. Designed with a treated paper cone for enhanced durability, these speakers deliver aggressive midrange performance while offering basic UV and moisture resistance, making them ideal for car doors, pods, or semi-protected outdoor installs.

With a 150W RMS / 300W MAX power handling rating and 97 dB sensitivity, they deliver clean, punchy sound without demanding massive amplifier power. Unlike the fully sealed PWR series, these models feature a bullet dust phase plug, rather than a sealed dust cap, meaning they’re resistant but not fully waterproof. Perfect for those who require fierce output and clarity, where full marine sealing isn’t necessary.

Unleash the riot — and make every note hit with force

Features

• 150W RMS / 300W Max Power Handling – Delivers loud, aggressive mids with serious impact.


• Treated Paper Cone – UV and moisture resistant for extra durability (not fully waterproof).


• Bullet Dust Phase Plug – Focuses sound for improved clarity and projection.


• High Sensitivity (97 dB) – Efficient output for loud, clear sound even with lower power amps.


• 1.5" KCCAW Voice Coil – Handles heat and power with long-lasting reliability.


• Wide Frequency Range (80Hz–10kHz) – Produces rich, detailed midrange response.


• Optimized 8" Form Factor – Easy to install with 3.23" mounting depth and 7.2" cutout.


• Heavy-Duty 23 oz Magnet – Supports strong motor structure and sound control.


• Sold as a Pair – Two matched speakers for stereo setups or system expansion.

Specifications:

• RMS Power Handling: 150 Watts


• Maximum Power Handling: 300 Watts


• Nominal Impedance: 4-Ohm


• Voice Coil Diameter: 1.5" / 38.6 mm


• Magnet Weight: 23 oz


• Frequency Response: 80 - 10 kHz


• Sensitivity: 97 dB


• Nominal Chassis Diameter: 8" / 205 mm


• Resonance (natural) Frequency: 93 Hz


• Voice Coil Material: KCCAW

Thiele & Small Parameters:

• Free Air Resonance (Fs): 93 Hz


• Resistance (Re): 3.8-Ohm


• Mechanical Factor (Qms): 9.4


• Electrical Factor (Qes): 1


• Total Factor (Qts): 0.9


• Mechanical Resistance (Rms):


• Equivalent Volume (Vas): 8 L


• BL Factor (BL): 7.2 T/m


• Moving Mass (Mms): 23 grams


• Sound Pressure Level (SPL):


• Excursion Max (Xmax): 3.5 mm


• Sd (cm^2): 145 cm^2


• Efficiency %: 0.71%


• EBP: 93

Measurements:

• Overall Diameter: 8" / 205 mm


• Bolt Circle Diameter: 7.63" / 194 mm


• Baffle Cutout Diameter: 7.2" / 183 mm


• Overall Depth: 3.5" / 88.1 mm


• Mounting Depth: 3.23" / 82mm


• Sold as: Pair