--- product_id: 91438540 title: "SoundQubed S1-850 900W RMS Car Audio Amplifier, 1 Ohm Stable Monoblock Amp Class D w/Remote Gain Control Knob & LED Clipping Indicator" brand: "sound q qubed" price: "$658.18" currency: USD in_stock: true reviews_count: 8 category: "Sound Q Qubed" url: https://www.desertcart.us/products/91438540-soundqubed-s1-850-900w-rms-car-audio-amplifier-1-ohm store_origin: US region: United States of America --- # 900W RMS power output Advanced cooling heatsink Remote gain control knob SoundQubed S1-850 900W RMS Car Audio Amplifier, 1 Ohm Stable Monoblock Amp Class D w/Remote Gain Control Knob & LED Clipping Indicator **Brand:** sound q qubed **Price:** $658.18 **Availability:** ✅ In Stock ## Summary > 🎵 Feel the Power, Not the Heat — Bass That Commands Attention! ## Quick Answers - **What is this?** SoundQubed S1-850 900W RMS Car Audio Amplifier, 1 Ohm Stable Monoblock Amp Class D w/Remote Gain Control Knob & LED Clipping Indicator by sound q qubed - **How much does it cost?** $658.18 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/91438540-soundqubed-s1-850-900w-rms-car-audio-amplifier-1-ohm) ## Best For - sound q qubed enthusiasts ## Why This Product - Trusted sound q qubed brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** Space-saving footprint fits seamlessly in your ride without sacrificing power or quality. - • **Precision Bass Tuning:** Remote gain control and LED clipping indicator let you dial in perfect sound without guesswork. - • **Stay Cool Under Pressure:** Efficient Class D design with enhanced heatsink keeps your amp running loud and cool. - • **Built for Longevity & DIY:** Nearly 20 years of innovation with easy install features and trusted SoundQubed reliability. - • **Unleash Massive Bass Power:** Delivers up to 900W RMS at 1 ohm for earth-shaking subwoofer performance. ## Overview The SoundQubed S1-850 is a 900W RMS Class D monoblock car amplifier, stable at 1 ohm, designed for serious bass enthusiasts who demand powerful, precise, and reliable subwoofer performance. Featuring a compact design, advanced cooling, remote gain control, and LED clipping indicator, it offers easy installation and long-lasting durability backed by nearly two decades of SoundQubed innovation. ## Description Buy SoundQubed S1-850 900W RMS Car Audio Amplifier, 1 Ohm Stable Monoblock Amp Class D w/Remote Gain Control Knob & LED Clipping Indicator: Mono Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Do...NOT...wire below 1 ohm. - The amp is as advertised. I have it wired too 1 ohm in a daily driver and it works flawlessly. Doesnt get real hot. No thump on turn on. And the bass knob with clip light is such a valuable tool you just cannot go wrong with the S1 series. Highly recommend. Forget the price. Forget stickers. This amplifier does its job well. Review: Great product, True wattage, best bang for your buck. - This amp was suggested to me by a friend in the the competition side of bass. I couldnt be happier. Talk about watts for the money i give it hell and it keeps taking it. I had to do the big 3 wiring for the battery/ alternator to keep power to this baby. The clipping indicator allows you to properly adjust the amp to keep you from burning up any components unknowingly. With this you know if you are doing damage to you setup. ## Features - Powerful Monoblock Bass Amplifier: Wired to a 1ohm load, this amp puts out up to 900W RMS (14.4V), or 1070W RMS (16V). Dial in the perfect tuning for your sub stage with the S1-850’s subsonic and low-pass filtering. Strap two S1-850s for higher combined power output. If you want to jump into car audio with both feet, this amp will push a pair of SoundQubed HDS2.2 Subwoofers. - Add Bass, Save Space: The S1-850 is a Class D subwoofer amp is a great choice for space-conscious audio enthusiasts because of its compact amplifier footprint. This is an audio amplifier for cars with or without upgraded electrical systems. Always know your charging specs before you buy an amp. You generally need 100 amps of alternator output per 1000W. So, for a 2000W class D monoblock amplifier, you would need a 200 amp alternator. - Stays Cool as a Cucumber: Added heatsink and improved circuitry make for excellent cooling. This efficient class D monoblock amplifier design keeps more power flowing to your system instead of turning into heat, so you can play louder for longer. - Easy Install, even for Dummies: Set screw terminals connect easily to your power and speaker wire. Surface-mount feet make securely mounting the S1-850 a cinch. To get everything you need for installation, check out the SoundQubed Four Gauge amp kit. Wiring configuration and ohm load allow output from 375 to 1070 (16V) Watts RMS. - Our Longevity is Your Advantage: Established in 2002 as Audioque (AQ), we have nearly 20 years of innovation behind our products. We focus on getting high-quality products into the hands of DIY audio enthusiasts at affordable prices. Our team members provide the education and service after the sell to help you shape your car audio experience with confidence. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07B4LPQ4Y | | Best Sellers Rank | #429,178 in Electronics ( See Top 100 in Electronics ) #845 in Car Mono Amplifiers | | Brand Name | SOUND Q QUBED | | Customer Reviews | 4.4 out of 5 stars 70 Reviews | | Item Dimensions | 9.8 x 7.8 x 2.2 inches | | Item dimensions L x W x H | 9.8 x 7.8 x 2.2 inches | | Manufacturer | SoundQubed | | Maximum Supply Voltage | 18 Volts | | Minimum Supply Voltage | 12 Volts | | Model | S1-850 | | Mounting Type | Surface Mount | | Number of Channels | 1 | | Output Power | 900 Watts | | Package Type Name | Retail Box | | UPC | 718122079704 | | Voltage | 12 Volts | ## Product Details - **Item dimensions L x W x H:** 9.8 x 7.8 x 2.2 inches - **Manufacturer:** SoundQubed - **Maximum Supply Voltage:** 18 Volts - **Minimum Supply Voltage:** 12 Volts - **Voltage:** 12 Volts ## Images ![SoundQubed S1-850 900W RMS Car Audio Amplifier, 1 Ohm Stable Monoblock Amp Class D w/Remote Gain Control Knob & LED Clipping Indicator - Image 1](https://m.media-amazon.com/images/I/71l5-LV89BL.jpg) ![SoundQubed S1-850 900W RMS Car Audio Amplifier, 1 Ohm Stable Monoblock Amp Class D w/Remote Gain Control Knob & LED Clipping Indicator - Image 2](https://m.media-amazon.com/images/I/61KDPmnwXnL.jpg) ![SoundQubed S1-850 900W RMS Car Audio Amplifier, 1 Ohm Stable Monoblock Amp Class D w/Remote Gain Control Knob & LED Clipping Indicator - Image 3](https://m.media-amazon.com/images/I/61AC7jilNtL.jpg) ![SoundQubed S1-850 900W RMS Car Audio Amplifier, 1 Ohm Stable Monoblock Amp Class D w/Remote Gain Control Knob & LED Clipping Indicator - Image 4](https://m.media-amazon.com/images/I/61xsIKyfp7L.jpg) ![SoundQubed S1-850 900W RMS Car Audio Amplifier, 1 Ohm Stable Monoblock Amp Class D w/Remote Gain Control Knob & LED Clipping Indicator - Image 5](https://m.media-amazon.com/images/I/51LQ3Fu2CJL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Do...NOT...wire below 1 ohm. *by B***N on September 1, 2019* The amp is as advertised. I have it wired too 1 ohm in a daily driver and it works flawlessly. Doesnt get real hot. No thump on turn on. And the bass knob with clip light is such a valuable tool you just cannot go wrong with the S1 series. Highly recommend. Forget the price. Forget stickers. This amplifier does its job well. ### ⭐⭐⭐⭐⭐ Great product, True wattage, best bang for your buck. *by A***R on July 5, 2019* This amp was suggested to me by a friend in the the competition side of bass. I couldnt be happier. Talk about watts for the money i give it hell and it keeps taking it. I had to do the big 3 wiring for the battery/ alternator to keep power to this baby. The clipping indicator allows you to properly adjust the amp to keep you from burning up any components unknowingly. With this you know if you are doing damage to you setup. ### ⭐⭐⭐⭐⭐ Nice Amp *by C***Y on January 28, 2022* Great Amp does what it's supposed to excellent build quality would buy again ## Frequently Bought Together - Soundqubed Audio Amplifier s1-850 Mono Amp Car Audio Amplifier w/Remote Control Gain Knob Max Output Competition Audio Sub Amp Subwoofer Amplifier 1000 Watt Amp - mankk 166 Pcs Wire Ferrules Kits Silver Plated Copper Crimp Terminal Connector 8 Sizes AWG (1/0 2/0 2 4 6 8 10 12) Sleeves Insulated Cord Pin End Terminal M-020 - CT Sounds 4 Gauge OFC Complete Amp Wiring Install Kit, AMPKIT-4GA-ELITE --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/91438540-soundqubed-s1-850-900w-rms-car-audio-amplifier-1-ohm](https://www.desertcart.us/products/91438540-soundqubed-s1-850-900w-rms-car-audio-amplifier-1-ohm) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-18*