AI-generated product photo — not official manufacturer imagery.
Estimated price (community-sourced)
Around — community and catalog average, updates slowly
About the Sub Nine
The Vandersteen Sub Nine is a premium powered subwoofer sold in stereo pairs, originally developed as the bass section for a statement-level speaker but excels as a standalone solution for enhancing bass with the Model 7 floorstanders or other high-quality speakers. Each enclosure houses a 13-inch downward-firing, slot-loaded woofer with a patented cellulose-fiber/foam cone and a 400-watt Class B linear balanced bridge amplifier with switching power factor corrected regulated power supply. Key features include 11-band room equalization, continuously adjustable contour control (Q=0.5 to 1), level control for speaker sensitivities from 82 dB to 92 dB, and high-level inputs via 5-way binding posts or banana plugs. This allows precise tailoring to any listening room for optimal bass performance. Manufactured in the USA with standard high-gloss automotive paint finishes.
Specifications
Transducer Specifications
Driver and acoustic performance characteristics
- Sensitivity
- 87 dB SPL @ 1W/1m
- Impedance
- 8Ω
- Frequency Response
- 20 Hz - 100 Hz
- Power Handling
- 400W
Power Specifications
Amplification power output and characteristics
- Power @ 8Ω
- 400W @ 8Ω
- Amplifier Class
- B
Speaker Design
Driver configuration and enclosure design
- Driver Size
- 13"
- Driver Count
- 1
- Enclosure Type
- ported
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 432 × 533 × 508 mm (W × H × D)
- Weight
- 49 kg (108 lbs)
Key Specifications
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions