BMB 12-inch 3-Way Commercial Karaoke Speaker | Model: CSJ-312
📌 Short Description / Selling Highlights
- Central Phase Guide Tube (Exclusive to 12" CSJ-312): Centered layout design ensures equal distance from each driver unit to the phase tube, minimizing phase shift and sound wave interference for clear, pure audio quality.
- Vortex Ring Horn Technology: Unique horn structure stores and releases acoustic energy, fully unleashing dynamic textures and delivering powerful, punchy vocal and music playback.
- 3-Way, 5-Unit Bass-Reflex System: High-performance configuration featuring a 12" Japanese paper cone woofer, dual 2.8" mid-range squawkers, and dual 2.8" tweeters.
- High Power Output: 450W Continuous Power / 900W Music Peak Power handling at 8Ω nominal impedance.
- Heavy-Duty 18mm MDF Cabinet: Built with thick 18mm homogeneous acoustic particle board to minimize cabinet resonance and vibration during high-volume playback.
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📝 Product Overview
Take your commercial KTV venue or home cinema/karaoke setup to the next level with the flagship BMB CSJ-312 12-inch 3-Way Karaoke Speaker. Designed and engineered in Japan, the CSJ-312 delivers higher SPL output, deeper bass extension, and expansive room coverage compared to standard 10-inch models.
Featuring BMB's proprietary Vortex Ring Horn technology and an exclusive central phase guide tube, the CSJ-312 delivers balanced sound pressure across all five internal drivers. Its dedicated 3-way layout (Woofer, Dual Mid-Range, Dual Tweeters) ensures vocal performance remains smooth, clear, and distortion-free over rich background music.
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🛠️ Technical Specifications
Audio & Driver Configuration
- System Type: 3-Way, 5-Unit Bass-Reflex Loudspeaker System
- Woofer (LF): 305mm (12") Cone with 65.0mm (2.5") Voice Coil x1
- Mid-Range Squawker (MF): 70mm (2.8") Cone with 13.5mm (0.5") Voice Coil x2
- Tweeter (HF): 70mm (2.8") Cone with 13.5mm (0.5") Voice Coil x2
- Acoustic Design: Central Phase Guide Tube & Vortex Ring Horn
Power & Acoustic Performance
- Continuous Power Handling: 450W
- Program / Music Peak Power: 900W
- Nominal Impedance: 8 Ω
- Frequency Range (-10dB): 40 Hz – 20 kHz
- Sensitivity: 91 dB (1W/1m)
Enclosure & Build
- Cabinet Material: 18mm (0.71") Homogeneous Acoustic Particle Board (MDF)
- Connectors: 19.05mm (3/4") Standard Binding Post Terminals
- Dimensions per Unit (W x H x D): 580 mm x 350 mm x 360 mm (22.8" x 13.8" x 14.2")
- Net Weight: 18.0 kg (39.7 lbs) per unit
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📦 Package Includes
- 2x BMB CSJ-312 12-inch Karaoke Speakers (Pair)
- 1x User Manual
- 1x Product Registration Card