XS Power XSP312 Power Module
Many in-stock orders ship within 1-2 business days, but timing varies by item. Custom, built-to-order, oversized, special-order and supplier-direct products may need extra processing time. Free shipping applies to qualifying orders over $99 in the contiguous US. Approved returns may be subject to a restocking fee.
Most products are covered by the manufacturer's warranty against defects. Damage from over-powering or improper installation isn't covered — we'll help coordinate any valid claim.
Tell us your vehicle, subwoofers and electrical setup and our team will help you match the right gear. Reach out before you buy.
Dual-battery builds demand more than heavy wire and a good fuse — they need smart power management, and the XS Power XSP312 delivers it. This car audio power module controls current flow between batteries so your system draws what it needs without ever leaving you stranded with a dead cranking battery.
The XSP312 operates as a reliable dual battery isolator, making it ideal for daily-driver installs where the main battery must stay protected while a secondary cell powers the amplifiers. Clean installation, intelligent voltage control, and XS Power engineering behind it — the XSP312 is the kind of voltage control module that makes the rest of your build work the way it should.
Specifications
| Type | Harness for XSP 310/320 Digital Voltage Controllers |
| Compatibility | GM “SI” Series Alternators – 1969 to 1988 |
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.
