



SoundQubed S4-100 100W 4-Channel Car Amplifier
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.
Subwoofer Wiring Diagram
Select your configuration to view possible wiring combinations.
Loading wiring diagrams…
Diagrams are on our wiring diagram page.
Feed your subs the power they deserve with the SoundQubed S4-100 100W 4-Channel Car Amplifier. SoundQubed built this amp for real-world abuse — strong low-ohm output, tight regulation, and reliable thermal control.
Specifications
| Brand | SoundQubed |
|---|---|
| Model | S4-100 |
| Series | S Series |
| RMS Power | 100W x4 @ 4Ω · 175W x4 @ 2Ω |
| Channels | 4 |
Product Overview
The S4-100 is a high-efficiency Class D multi-channel amplifier with a host of tone control options. The S4-100 balances deep and loud low ends with power for mids and highs. With the S4-100, you'll have 175 Watts per channel in stereo on four channels at 2 Ohm and 100 Watts per channel in stereo on four channels at 4 Ohm. For more power-hungry car stereos, it can be run in stereo at 375 Watts at 4 Ohm on two channels. This is perfect for driving one S4-100 to each door for car audio competitions and sound quality systems.
JS Ultimate Sounds stocks the full SoundQubed lineup and ships fast. Questions about wiring this up or what it pairs with? Drop us a line before you buy — we'll point you the right way.
Authorized SoundQubed dealer at JS Ultimate Sounds. Free shipping on orders $99+.


