






SoundQubed S1-850 850W Monoblock 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
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Feed your subs the power they deserve with the SoundQubed S1-850 850W Monoblock Car Amplifier. SoundQubed built this amp for real-world abuse — strong low-ohm output, tight regulation, and reliable thermal control.
Specifications
| Brand | SoundQubed |
|---|---|
| Model | S1-850 |
| Series | S Series |
| RMS Power | 900W @ 1Ω · 625W @ 2Ω · 375W @ 4Ω |
| Channels | Monoblock |
Product Overview
The SoundQubed S1-850 Monoblock Amp offers unrivaled Class D power at an unbeatable price. This heavy-duty car subwoofer amplifier delivers more than 900 Watts RMS through a single channel for subwoofer or array applications. Mount the S1-850 just about anywhere. Our most affordable and compact monoblock car amplifier has a deceptively small form factor. You’ll be able to get a big booming sound with a small footprint. The S1-850’s 900 Watts RMS of Class D power in a single channel subwoofer amplifier offers heavy-duty peak power.
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+.


