Introduction
The BMB CSV-900 speakers are part of the high-powered CSV series, designed to deliver solid sound with excellent low-bass and high-tone reproduction. These speakers feature a unique cabinet design, multicellular horn tweeters, and squawkers. Constructed with highly reliable paper cones from Japan and a double-layer wood cabinet with interlocking panels, they ensure enhanced audio quality and structural integrity. Built for performance, the speakers incorporate anti-howling technology to minimize sound feedback. The CSV-900 is a bass reflex system with a 3-way, 3-speaker configuration, including a 12-inch woofer, two 3.15-inch drivers, and a 3-inch tweeter per cabinet. The system supports a minimum input power of 500 watts and a maximum input of 1200 watts at 8 ohms.
Key Features
- New multicellular horn tweeters/squawkers for wide sound reproduction.
- Tweeter Sound Pressure Level SW for howling prevention.
- Woofers utilize high-quality paper cones from Japan for superior sound.
- Designed for high power and next-generation karaoke sound.
Product Overview

Figure 1: Front view of the BMB CSV-900 speakers, showcasing their design and BMB branding.

Figure 2: Rear view of a BMB CSV-900 speaker, highlighting the input terminals and tone adjustment switch.
Video 1: Product Overview of BMB speakers, demonstrating features and emphasizing the requirement for an external amplifier.
Setup
- Unpacking: Carefully remove the speakers from their packaging. Inspect for any signs of damage.
- Placement: Position the speakers in your desired location. For optimal sound, ensure they are placed symmetrically and at an appropriate distance from walls. The speakers are designed for tabletop mounting or can be adapted for other mounting types.
- Amplifier Connection: These are passive speakers and require an external amplifier (not included) for operation. Connect the speaker terminals to the corresponding output terminals on your amplifier using appropriate speaker wire. Ensure correct polarity (positive to positive, negative to negative).
- Power: Ensure your amplifier is connected to a suitable power source and is turned off before making any connections.
Operating Instructions
- Power On: After all connections are secure, turn on your amplifier.
- Volume Control: Start with the amplifier's volume at its lowest setting. Gradually increase the volume to a comfortable listening level. Avoid excessively high volumes to prevent speaker damage.
- Tone Adjustment: The rear of the speaker features a switch for tone adjustment (Flat/Treble). Experiment with this setting to match your audio preference and room acoustics.
- Microphone Use: When using microphones with the system, the built-in anti-howling technology helps reduce feedback. Adjust microphone gain on your amplifier or mixer carefully.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker cabinets. Do not use liquid cleaners or abrasive materials, as they may damage the finish.
- Environment: Keep speakers away from direct sunlight, excessive heat, moisture, and dust. Ensure adequate ventilation around the speakers.
- Connections: Periodically check all cable connections to ensure they are secure and free from corrosion.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Incorrect connections, amplifier off, amplifier input not selected. | Check speaker wire connections and polarity. Ensure amplifier is powered on and correct input is selected. |
| Distorted sound | Volume too high, damaged speaker wire, amplifier clipping. | Reduce volume. Inspect speaker wires for damage. Ensure amplifier is not overdriven. |
| Feedback (howling) | Microphone too close to speaker, microphone gain too high. | Reposition microphone. Reduce microphone gain on amplifier/mixer. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | CSV-900 |
| Speaker Type | 3-Way, 3-Speaker Bass Reflex System |
| Woofer Diameter | 12 Inches |
| Tweeter Diameter | 3 Inches (8 Centimeters) |
| Driver Size | Two 3.15 Inches |
| Maximum Output Power | 1200 Watts |
| Minimum Input Power | 500 Watts |
| Impedance | 8 Ohms |
| Connectivity Technology | Wired |
| Audio Output Mode | Stereo |
| Product Dimensions (each) | 13.18"D x 23.62"W x 13.7"H |
| Item Weight (each) | 38.5 Pounds |
| Mounting Type | Tabletop Mount |
| Material (Cone) | Paper |
Warranty and Support
BMB products typically come with a limited warranty. Please refer to the warranty card included with your purchase for specific terms and conditions. For further support or inquiries, please visit the official BMB website or contact your authorized dealer.
BMB products are shipped with a certificate of authenticity, and each unit has a unique serial number for verification.
For more information, you can visit the BMB Store on Amazon.