The Yamaha VXC-8SB is an in-ceiling subwoofer designed for background music and sound reinforcement systems. It delivers deep, rich bass and blends seamlessly with other Yamaha ceiling speakers, making it ideal for commercial and retail installations.
Yamaha offers a 7‑Year Extended Warranty on selected Professional and BGM speaker categories. This long‑term warranty reflects Yamaha’s confidence in the reliability and durability of its products, giving you greater peace of mind and a stronger return on your investment.
To activate the extended warranty, please register the product serial number on Yamaha’s official page within a maximum of three months from the invoice date: https://mea.yamaha.com/en/business/audio/support/extended_warranty_professional_audio.html
8" ceiling subwoofer
VXC series “S model" ceiling subwoofers are ideal matches for VXS and VXC series speakers, smoothly extending the low frequency range with superb sonic quality for bigger, more true-to-life musical reproduction without spoiling interior design of architectures.

| VXC8SB / VXC8SW | ||
|---|---|---|
| Speaker type | Band-pass type Subwoofer | |
| Frequency range (-10dB) | 44 Hz - 200 Hz (Half-space 2π) | |
| Nominal coverage | - | |
| Components | LF | 8" Cone |
| Power rating | NOISE | 100 W |
| PGM | 200 W | |
| PEAK | 400 W | |
| Nominal impedance | 8 Ω | |
| Transformer taps | 100V | 60 W, 30 W, 15 W, 7.5 W |
| 70V | 60 W, 30 W, 15 W, 7.5 W, 3.8 W | |
| SPL | Sensitivity (1W; 1m on axis) | 88 dB SPL (Half-space 2π) |
| Peak (Calculated) | 114 dB SPL (Calculated, 1m) | |
| I/O connectors | Euroblock (4 pin) × 1 (input: +/-, loop-thru: +/-) | |
| Protection circuit | Load protection | Full-range power limiting to protect network and transducers |
| Finish | VXC8SB: Black (approx. Munsell N3), VXC8SW: White (approx. Munsell N9.3) | |
| Dimensions | Diameter | 324 mm (12-13/16") |
| D | 314 mm (12-23/64") | |
| Net weight | 8.7 kg (19.2 lbs) | |
| Cutout size | Ø285 mm (Ø11-7/32") | |
| Required ceiling board thickness | 5 mm - 37 mm | |
| Accessories | Cutout Template | |
| Packaging | Single package | |
| Certificate | UL1480, UL2043, NFPA70, CE, EAC, RoHS | |
| EN54-24 compliance | - | |
| Others | Conduit tube: Ø15.4 mm - Ø21.3 mm | |
| Options | AB-C8S: O-ring + Tile Rail kit | |