XS Power SB860-31 860F SuperBank Ultracapacitor
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An 860-farad ultracapacitor bank in a Group 31 form factor — the XS Power SB860-31 SuperBank is a serious piece of equipment for builders who have moved past conventional power caps and want real farad capacity working for their system. Unlike a standard one- or two-farad capacitor, the SB860-31 stores enough energy to genuinely buffer voltage during heavy bass transients, functioning more like a lightning-fast secondary battery than a simple filter component.
The practical result is dramatic: headlights stop dimming, amplifier rails stay stable, and the dynamic headroom of the entire system improves — especially noticeable on high-excursion bass notes that would normally cause a voltage dip. As an SPL capacitor bank and voltage stabilizer, the SB860-31 is sized right for daily-driver builds with large amplifier loads and for competitors who want a compact, self-contained farad capacitor bank that fits neatly into the existing electrical layout without requiring a complete overhaul.
Specifications
| Type | Ultracapacitor Bank (SuperBank) |
| Capacitance | 860 Farads |
| Group | Group 31 |
Authorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.
PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.
For more information, visit www.P65Warnings.ca.gov
