SoundQubed 8" BGX Series Pro-Hybrid Mid w/ 3" Horn

SoundQubed BGX-CX8 — 8" Pro-Hybrid 2-Way Coaxial | Carbon Fiber Cone | 3" Titanium Horn Driver | Sold Single

The SoundQubed BGX-CX8 is a groundbreaking 8" pro-hybrid 2-way coaxial speaker engineered for enthusiasts who demand uncompromising output, clarity, and build quality in a single driver. Combining a water-resistant carbon fiber cone woofer with a 3" titanium diaphragm horn driver, the BGX-CX8 delivers 400W RMS / 800W max combined at a staggering 105 dB combined sensitivity — making it one of the highest-output 8" coaxial drivers available for car audio, bagger, and demo build applications. Sold as a single speaker. No grill included.

The 8" woofer features a 2.6" / 66mm KAPTON voice coil former wound with CCAW (Copper Clad Aluminum Wire), a water-resistant carbon fiber cone with a treated cloth surround, a die-cast aluminum basket in corrugated black finish, and a neodymium magnet (148x9mm). It handles 250W RMS / 500W max at 97.5 dB sensitivity with a frequency response of 40 Hz–10 kHz and a recommended band-pass crossover of 80 Hz–900 Hz. The 3" horn driver uses a 3" / 76.2mm KAPTON voice coil former wound with pure aluminum ribbon wire, a titanium diaphragm from Japan, and a neodymium magnet with a 4.17" / 106mm horn diameter. It handles 150W AES / 300W program at 102.2 dB sensitivity with a frequency response of 400 Hz–20 kHz and a recommended hi-pass crossover of 900 Hz.

Whether you’re installing in a demo build, a Harley-Davidson bagger, or a high-output daily driver, the BGX-CX8 is built to perform at the highest level. The die-cast aluminum basket, carbon fiber cone, and Japanese titanium diaphragm are not entry-level components — this is a pro-grade driver in a car audio package.

Why Choose the SoundQubed BGX-CX8?

• 400W RMS / 800W MAX Combined @ 8Ω — Pro-grade power handling in a single 8" coaxial driver — built for high-output demo builds and bagger installs.
• 105 dB Combined Sensitivity (1W/1m) — Exceptionally high efficiency — delivers massive output with relatively modest amplification.
• Water-Resistant Carbon Fiber Cone — Lightweight, rigid, and moisture-resistant — ideal for bagger, marine, and outdoor installs where durability matters.
• 3" Titanium Horn Diaphragm (Japan) — Premium titanium diaphragm for crystal-clear, high-output highs from 400 Hz to 20 kHz — no harshness, no breakup.
• Pure Aluminum Ribbon Wire Voice Coil — Lightweight, thermally efficient winding material for the horn driver — handles sustained high-power use without thermal compression.
• Die-Cast Aluminum Basket — Rigid, resonance-free basket construction — pro audio grade in a car audio package.
• Neodymium Motors (Woofer + Horn) — High-flux, compact neodymium magnets on both drivers for maximum sensitivity and output in a manageable footprint.
• Sold as a Single — Buy exactly what you need for your build — one or multiple units for custom installs.

Installation & Pairing Recommendations

Crossover Configuration: The BGX-CX8 requires an active or passive crossover to split the signal between the woofer and horn driver. Set the woofer band-pass at 80 Hz–900 Hz and the horn driver hi-pass at 900 Hz. A DSP or active crossover is strongly recommended for precise crossover point management and driver protection at high power levels.

Amplifier Pairing: The BGX-CX8 is an 8Ω driver — verify your amplifier is stable at 8Ω before purchasing. The woofer handles 250W RMS and the horn driver handles 150W AES — use separate amplifier channels or a bridged configuration with appropriate crossover filtering for each driver.

Bagger / Demo Build Install: The BGX-CX8’s water-resistant carbon fiber cone and die-cast aluminum basket make it an excellent choice for Harley-Davidson bagger fairing and saddlebag locations, demo vehicles, and any install where output, durability, and premium construction are the priority. Pair with the SoundQubed BG4-1400 or a dedicated high-output 4-channel amplifier for a complete bagger audio system.

Mounting: The BGX-CX8 requires a 7.16" / 182mm baffle cutout and 4.76" / 121mm mounting depth. Overall diameter is 8.3" / 211mm, overall depth is 5.19" / 132mm. Motor diameter is 5.9" / 150mm. Verify your mounting location depth before purchasing — this driver requires significant depth clearance.

Measurements & Diagrams

Full Specifications

General (Combined)

Woofer Specifications

Thiele & Small Parameters (Woofer)

Horn Driver Specifications

Speaker Measurements

Frequently Asked Questions

Q: What crossover do I need for the BGX-CX8?
A: The BGX-CX8 requires an active or passive crossover to split the signal between the woofer and horn driver. Set the woofer band-pass at 80 Hz–900 Hz and the horn driver hi-pass at 900 Hz. A DSP or active crossover is strongly recommended for precise control and driver protection at high power levels.

Q: Is the BGX-CX8 suitable for a Harley-Davidson bagger install?
A: Yes — the water-resistant carbon fiber cone and die-cast aluminum basket make the BGX-CX8 an excellent choice for bagger fairing and saddlebag locations. Verify your mounting location provides at least 7.16" / 182mm baffle cutout and 4.76" / 121mm mounting depth before purchasing.

Q: Is this sold as a pair or single?
A: The BGX-CX8 is sold as a single speaker. Purchase the quantity you need for your build.

Q: What impedance is the BGX-CX8?
A: Both the woofer and horn driver are 8Ω. Verify your amplifier is stable at 8Ω before purchasing. Do not wire multiple BGX-CX8 units in parallel without confirming your amplifier’s minimum impedance rating.