--- product_id: 434448376 title: "S1-850 900W RMS Single-Channel (Monoblock) Class D Car Audio Amplifier with Remote Gain Control" brand: "sound q qubed" price: "€ 483.11" currency: EUR in_stock: true reviews_count: 5 category: "Sound Q Qubed" url: https://www.desertcart.it/products/434448376-s1-850-900w-rms-single-channel-monoblock-class-d-car store_origin: IT region: Italy --- # 900W RMS @ 1Ω - Powerhouse punch Advanced heatsink - Cool under pressure Remote gain control + clip LED - Precision tuning S1-850 900W RMS Single-Channel (Monoblock) Class D Car Audio Amplifier with Remote Gain Control **Brand:** sound q qubed **Price:** € 483.11 **Availability:** ✅ In Stock ## Summary > 🎵 Power your bass, own the streets. ## Quick Answers - **What is this?** S1-850 900W RMS Single-Channel (Monoblock) Class D Car Audio Amplifier with Remote Gain Control by sound q qubed - **How much does it cost?** € 483.11 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/434448376-s1-850-900w-rms-single-channel-monoblock-class-d-car) ## 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 - • **Stay Cool, Play Loud:** Enhanced heat dissipation and thermal protection keep your amp running strong without overheating. - • **Precision Bass Control:** Remote gain knob with LED clipping indicator lets you fine-tune your bass and protect your gear effortlessly. - • **Plug & Play Installation:** User-friendly set-screw terminals and surface-mount feet make setup quick—even for first-timers. - • **Unleash Massive Bass Power:** Delivers up to 1070W RMS at 1Ω for earth-shaking subwoofer performance that commands attention. - • **Compact Design, Maximum Impact:** Class D efficiency packs serious power into a sleek, space-saving footprint perfect for any ride. ## Overview The SoundQubed S1-850 is a high-efficiency Class D monoblock amplifier delivering up to 1070W RMS at 1Ω, designed for serious bass enthusiasts who demand powerful, precise, and cool-running performance in a compact form factor. Featuring advanced thermal management, remote gain control with clipping indicator, and easy installation, it’s engineered to elevate your car audio experience with professional-grade sound and reliability. ## Description Soundqubed S1-850 High Efficiency Class D Monoblock Amplifier Car Audio The high-efficiency design of the S1-850 lets you get the most out of your sub stage. This powerful single channel of output is just right for adding some bass to your daily driver without losing precious cargo space. Installing this amp with a pair of SoundQubed HDS206-D4 6.5" subwoofers is the perfect afternoon car audio project.Precise pre-amp filtering lets you tune the amp for a specific subwoofer enclosure. The subsonic filter helps prevent extreme low-end distortion. Strapping two S1-850s combines power output, with control of both amps from one pre-amp panel.The S1-850 has improved heat sinking and circuitry to run cooler. In case of high-heat situations, the heavy-duty printed circuit board also features thermal protection. The S1-850’s set-screw terminals accept up to 4/0 AWG power/ground wire, and up to 10 gauge speaker wire. Everything you need for installation is in the SoundQubed Four Gauge Amp Kit (not included).The remote gain control's LED clipping indicator tells you when to turn down to stop damage "Clipping" happens when the output waveform peaks are “clipped” at the maximum limit of the circuitry. This sustained maximum power quickly burns up the voice coils in subwoofers. SPECIFICATIONS for this Soundqubed Amplifier Monoblock Class D Working Voltage: 8.5 V - 16 VMaximum Amperage: 90 AmpsPower @ 4 Ohm 14.4 V: 375 Watts RMSPower @ 2 Ohm 14.4 V: 625 Watts RMSPower @ 1 Ohm 14.4 V: 900 Watts RMSPower @ 1 Ohm 16 V: 1070 Watts RMSFrequency Response: 10 Hz - 200 HzS/N Ratio: Greater than 80Damping Factor: Greater than 100Input Sensitivity: 5 V - 0.15 VSubsonic Filter: 10 Hz - 50 HzLow-Pass Filter: 20 Hz - 200 HzDimensions: 9.8 L x 7.8 W x 2.2 H Review: 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: 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 | | Item model number | S1-850 | | Manufacturer | SoundQubed | | Product Dimensions | 24.89 x 19.81 x 5.59 cm; 3.24 kg | ## Product Details - **Item dimensions L x W x H:** 24.9 x 19.8 x 5.6 centimeters - **Manufacturer:** SoundQubed - **Maximum supply voltage:** 16 Volts - **Minimum supply voltage:** 14.4 Volts - **Voltage:** 12 Volts ## Images ![S1-850 900W RMS Single-Channel (Monoblock) Class D Car Audio Amplifier with Remote Gain Control - Image 1](https://m.media-amazon.com/images/I/71l5-LV89BL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by B***N on 1 September 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. ### ⭐⭐⭐⭐⭐ Review *by A***R on 5 July 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. ### ⭐⭐⭐⭐⭐ Review *by C***Y on 28 January 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.it/products/434448376-s1-850-900w-rms-single-channel-monoblock-class-d-car](https://www.desertcart.it/products/434448376-s1-850-900w-rms-single-channel-monoblock-class-d-car) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-08*