--- product_id: 671682535 title: "– HT4S Bluetooth Amplifier for Outdoor Speakers, Bass Shaker Sim 4-Channel Power Amp for Racing Cockpit 4.1/5.0 Ch Stereo Home Audio Receiver with AUX/Optical Input Remote Control" brand: "fosi audio" price: "$307.16" currency: USD in_stock: true reviews_count: 6 category: "Fosi Audio" url: https://www.desertcart.us/products/671682535-ht4s-bluetooth-amplifier-for-outdoor-speakers-bass-shaker-sim-4 store_origin: US region: United States of America --- # Bluetooth 5.0 with aptX 400W max power output All-aluminum alloy durable body – HT4S Bluetooth Amplifier for Outdoor Speakers, Bass Shaker Sim 4-Channel Power Amp for Racing Cockpit 4.1/5.0 Ch Stereo Home Audio Receiver with AUX/Optical Input Remote Control **Brand:** fosi audio **Price:** $307.16 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your soundscape — compact power that commands attention! ## Quick Answers - **What is this?** – HT4S Bluetooth Amplifier for Outdoor Speakers, Bass Shaker Sim 4-Channel Power Amp for Racing Cockpit 4.1/5.0 Ch Stereo Home Audio Receiver with AUX/Optical Input Remote Control by fosi audio - **How much does it cost?** $307.16 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/671682535-ht4s-bluetooth-amplifier-for-outdoor-speakers-bass-shaker-sim-4) ## Best For - fosi audio enthusiasts ## Why This Product - Trusted fosi audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Powerful 400W Output:** Drive up to 5 speakers with crystal-clear sound and minimal distortion. - • **Sleek & Durable Design:** Compact CNC-machined aluminum chassis built to last and elevate your space. - • **Immersive Bass Shaker Ready:** Feel every beat and racing thrill with enhanced bass vibration compatibility. - • **Versatile Multi-Input Support:** Connect effortlessly via Bluetooth, AUX, or optical inputs for any setup. - • **Seamless Bluetooth 5.0 Streaming:** Enjoy high-fidelity wireless audio with aptX for lag-free, rich sound. ## Overview The Fosi Audio HT4S is a compact yet mighty 400W Bluetooth amplifier designed for versatile audio setups, from outdoor speakers to racing simulators. Featuring Bluetooth 5.0 with aptX, multi-channel output (4.1/5.0), and a robust aluminum alloy body, it delivers immersive, distortion-free sound with easy remote control operation. Perfect for millennials seeking a stylish, durable amp that blends high performance with seamless connectivity and immersive bass experience. ## Description Fosi Audio HT4S Bluetooth Amplifier for Outdoor Speakers, Bass Shaker Sim 4-Channel Power Amp for Racing Cockpit 4.1/5.0 Ch Stereo Home Audio Receiver with AUX/Optical Input Remote Control : desertcart.ae: Electronics Review: good product - The unit is good easy to install, bluetooth option is excellent. pair with bose 301 sound is fantastic. Planning to buy another one. My only concern is the unit does not have ventilation and sometimes using it on high volume the surface of the unit get hot. I'm happy and hope it will last. I love the size, you can carry anywhere, simple and easy. the remote control needs some improvement. Review: The Fosi Audio HT4S is a compact yet powerful Bluetooth amplifier. It combines Bluetooth connectivity, solid build quality, and impressive sound performance into a small, user-friendly package. Design and Build Quality The first thing you'll notice about the Fosi Audio HT4S is its sleek and compact design. Housed in a sturdy metal casing, the amplifier feels durable and well-made, with a minimalist aesthetic that can easily blend into any home audio setup. Its small footprint makes it a perfect choice for users with limited space, whether on a desk, bookshelf, or entertainment center. The front panel features simple and intuitive controls, including a volume knob, input selector switch, and an LED indicator. There are also several input options, including RCA and Bluetooth, making it versatile for connecting multiple audio sources. The Bluetooth antenna is discreet yet effective, ensuring a stable connection. Features and Connectivity The Bluetooth 5.0 capability of the HT4S is one of its standout features. It offers seamless wireless connectivity, allowing you to stream music from smartphones, tablets, or laptops with ease. Pairing is quick and reliable, and the Bluetooth range is impressive, maintaining a stable connection even across larger rooms. The Bluetooth signal supports aptX, which ensures high-quality audio streaming with minimal latency. In addition to Bluetooth, the HT4S offers RCA inputs, allowing for wired connections to a wide variety of audio devices, CD players, or desktop computers. This makes it a versatile amplifier, suitable for both modern and traditional audio setups. Sound Performance For such a compact amplifier, the sound quality of the Fosi Audio HT4S is remarkable. Powered by a high-performance amplifier, it delivers clean, powerful sound that punches above its weight in terms of size and price. The HT4S can drive a wide range of speakers, from small bookshelf models to larger floor-standing units, with ease. The sound signature is balanced and detailed, with a slight emphasis on the midrange and highs, making it ideal for vocal-heavy music or instrumental tracks. Bass is tight and controlled, though not overly boomy. If you're looking for more bass impact, pairing the HT4S with a subwoofer would be a good idea, as it lacks a dedicated bass boost feature. One of the most impressive aspects of the HT4S is its low noise floor. Even at higher volumes, it produces minimal distortion, providing clear and crisp audio output. Whether you're using it for casual music listening or as part of a more serious home audio system, the sound quality is more than satisfactory. Ease of Use The HT4S is designed with user convenience in mind. Setting up the amplifier is straightforward, and the controls are intuitive. The volume knob has a smooth, precise feel, and switching between inputs is as simple as flipping a switch. The LED indicator makes it easy to see which input mode you're in. Durability and Heat Management The metal housing not only looks sleek but also helps with heat dissipation. The HT4S runs cool, even during extended listening sessions at higher volumes. This is an important feature, especially for those planning to use the amplifier for long hours. Its solid build also suggests that it will stand the test of time with proper care. Price and Value At its price point, the Fosi Audio HT4S offers excellent value for money. It’s hard to find such a compact amplifier that delivers on sound quality, build, and Bluetooth performance at this price range. It’s an ideal choice for those looking for an affordable yet high-performing amp to power bookshelf speakers or create a wireless streaming setup. Final Verdict The Fosi Audio HT4S Bluetooth Amplifier is a great option for those seeking a compact, affordable, and high-quality amplifier. Its combination of Bluetooth 5.0 connectivity, versatile inputs, and impressive sound quality makes it suitable for a wide range of applications, from casual listening to powering more serious home audio systems. Pros: Compact, durable, and stylish design Bluetooth 5.0 with aptX for high-quality wireless streaming Clean and powerful sound with low distortion Multiple input options (Bluetooth and RCA) Easy to set up and use Cons: Bass output might feel a bit light for bass-heavy genres Lacks a dedicated subwoofer output Overall, the Fosi Audio HT4S offers excellent performance for its price, making it a fantastic choice for audiophiles on a budget or anyone looking to enhance their home audio setup. ## Features - All-in-One Amp: A mini amplifier that integrates DAC and power amplification. This stereo amplifier supports up to 5 channels output, which can be changed between 4.1 and 5.0 channels. Supports Bluetooth, AUX and optical digital inputs as well as front output and up to 5 speaker outputs. - Multi Scenario Solution: Ideal for pairing with outdoor speakers or wall-mounted speakers; patio, cafe, restaurant, bar, etc. perfect for installing 2 to 5 channel sound systems in environments. It can also be used as a home theater or desktop HiFi system amplifier and can meet your various needs from indoor to outdoor use. - Improved Immersion: Take your glitter racing and home cinema experience to a whole new level! When paired with bass shakers, sufficient power output and bass boost help significantly increase the realisticism of racing simulator games. When watching movies at home, vibration feedback can also help you experience your movies in another size, and every movie feels more realistic as if in a cinema. - Effortless Operation: Built-in power supply with remote control, support bass and treble tone setting, a multifunctional central button for volume control, on/off and mode changing, LED mode indicator ambient light, etc. With a comprehensive user-friendly design. Music enjoyment has never been easier. - Elegant & Durable: CNC solid construction and fine metal sandblasting process accentuates a minimalist aesthetic with Fosi Audio's all-aluminum alloy body design. Full metal housing provides durability and you can benefit from Fosi Audio's 24 month warranty for each unit. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CYQ1B598 | | Best Sellers Rank | #6,777 in Electronics ( See Top 100 in Electronics ) #13 in Home Audio Amplifiers | | Brand Name | Fosi Audio | | Country Of Origin | China | | Customer Reviews | 4.1 4.1 out of 5 stars (306) | | Included Components | HT4S Bluetooth Amplifier | | Item Dimensions | 15.5 x 18.3 x 5.1 centimeters | | Manufacturer | Fosi Audio | | Material Type | Aluminum Alloy | | Maximum Supply Voltage | 230 Volts | | Model | HT4S | | Mounting Type | Freestanding | | Number of Channels | 5 | | Operating Temperature | 20 Degrees Celsius | | Output Power | 400 Watts | | Package Type Name | box | | Part Number | HT4S | | Specification Met | CE, FCC, RoHS, WEEE | | Unit Count | 1 Count | | Voltage | 230 Volts | ## Product Details - **Item dimensions L x W x H:** 15.5 x 18.3 x 5.1 centimeters - **Manufacturer:** Fosi Audio - **Maximum supply voltage:** 230 Volts - **Mounting type:** Freestanding - **Voltage:** 230 Volts ## Images ![– HT4S Bluetooth Amplifier for Outdoor Speakers, Bass Shaker Sim 4-Channel Power Amp for Racing Cockpit 4.1/5.0 Ch Stereo Home Audio Receiver with AUX/Optical Input Remote Control - Image 1](https://m.media-amazon.com/images/I/51Iqgx-WUaL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ good product *by M***E on 9 June 2025* The unit is good easy to install, bluetooth option is excellent. pair with bose 301 sound is fantastic. Planning to buy another one. My only concern is the unit does not have ventilation and sometimes using it on high volume the surface of the unit get hot. I'm happy and hope it will last. I love the size, you can carry anywhere, simple and easy. the remote control needs some improvement. ### ⭐⭐⭐⭐⭐ Review *by T***T on 9 September 2024* The Fosi Audio HT4S is a compact yet powerful Bluetooth amplifier. It combines Bluetooth connectivity, solid build quality, and impressive sound performance into a small, user-friendly package. Design and Build Quality The first thing you'll notice about the Fosi Audio HT4S is its sleek and compact design. Housed in a sturdy metal casing, the amplifier feels durable and well-made, with a minimalist aesthetic that can easily blend into any home audio setup. Its small footprint makes it a perfect choice for users with limited space, whether on a desk, bookshelf, or entertainment center. The front panel features simple and intuitive controls, including a volume knob, input selector switch, and an LED indicator. There are also several input options, including RCA and Bluetooth, making it versatile for connecting multiple audio sources. The Bluetooth antenna is discreet yet effective, ensuring a stable connection. Features and Connectivity The Bluetooth 5.0 capability of the HT4S is one of its standout features. It offers seamless wireless connectivity, allowing you to stream music from smartphones, tablets, or laptops with ease. Pairing is quick and reliable, and the Bluetooth range is impressive, maintaining a stable connection even across larger rooms. The Bluetooth signal supports aptX, which ensures high-quality audio streaming with minimal latency. In addition to Bluetooth, the HT4S offers RCA inputs, allowing for wired connections to a wide variety of audio devices, CD players, or desktop computers. This makes it a versatile amplifier, suitable for both modern and traditional audio setups. Sound Performance For such a compact amplifier, the sound quality of the Fosi Audio HT4S is remarkable. Powered by a high-performance amplifier, it delivers clean, powerful sound that punches above its weight in terms of size and price. The HT4S can drive a wide range of speakers, from small bookshelf models to larger floor-standing units, with ease. The sound signature is balanced and detailed, with a slight emphasis on the midrange and highs, making it ideal for vocal-heavy music or instrumental tracks. Bass is tight and controlled, though not overly boomy. If you're looking for more bass impact, pairing the HT4S with a subwoofer would be a good idea, as it lacks a dedicated bass boost feature. One of the most impressive aspects of the HT4S is its low noise floor. Even at higher volumes, it produces minimal distortion, providing clear and crisp audio output. Whether you're using it for casual music listening or as part of a more serious home audio system, the sound quality is more than satisfactory. Ease of Use The HT4S is designed with user convenience in mind. Setting up the amplifier is straightforward, and the controls are intuitive. The volume knob has a smooth, precise feel, and switching between inputs is as simple as flipping a switch. The LED indicator makes it easy to see which input mode you're in. Durability and Heat Management The metal housing not only looks sleek but also helps with heat dissipation. The HT4S runs cool, even during extended listening sessions at higher volumes. This is an important feature, especially for those planning to use the amplifier for long hours. Its solid build also suggests that it will stand the test of time with proper care. Price and Value At its price point, the Fosi Audio HT4S offers excellent value for money. It’s hard to find such a compact amplifier that delivers on sound quality, build, and Bluetooth performance at this price range. It’s an ideal choice for those looking for an affordable yet high-performing amp to power bookshelf speakers or create a wireless streaming setup. Final Verdict The Fosi Audio HT4S Bluetooth Amplifier is a great option for those seeking a compact, affordable, and high-quality amplifier. Its combination of Bluetooth 5.0 connectivity, versatile inputs, and impressive sound quality makes it suitable for a wide range of applications, from casual listening to powering more serious home audio systems. Pros: Compact, durable, and stylish design Bluetooth 5.0 with aptX for high-quality wireless streaming Clean and powerful sound with low distortion Multiple input options (Bluetooth and RCA) Easy to set up and use Cons: Bass output might feel a bit light for bass-heavy genres Lacks a dedicated subwoofer output Overall, the Fosi Audio HT4S offers excellent performance for its price, making it a fantastic choice for audiophiles on a budget or anyone looking to enhance their home audio setup. ### ⭐⭐⭐⭐⭐ Review *by J***4 on 30 July 2024* Uso questo amplificatore insieme ad una tv per controllare 3 casse e una sounbar collegata al preamp. Il suono é fantastico e privo di rumori o qualsiasi altro difetto. Apprezzo il supporto al codec AAC, così che tramite bluetooth si possa avere una qualità audio maggiore. Il look del dispositivo é molto moderno ed é molto compatto. Inoltre, sulla parte davanti é dotato di una striscia led che serve ad indicare la sorgente connessa. Quest'ultima si può disattivare col telecomando fornito. In conclusione, consiglio questo prodotto a chi vuole fare un modesto impianto home theater. Ottimo rapporto qualità/prezzo. ## Frequently Bought Together - Fosi Audio HT4S Bluetooth Amplifier for Outdoor Speakers, 4 Channel Power Amp for Home Theater, Outdoor Gathering, 4.1/5.0 Ch Stereo Home Audio Receiver, Supports AUX/Optical Input with Remote Control - Banana Plugs with Dual Set Screws,Black and Red Aluminum Shell,6 Pairs - Polk Audio Atrium 4 Outdoor Speakers with Powerful Bass (Pair, Black), All-Weather Durability, Broad Sound Coverage, Speed-Lock Mounting System --- ## 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/671682535-ht4s-bluetooth-amplifier-for-outdoor-speakers-bass-shaker-sim-4](https://www.desertcart.us/products/671682535-ht4s-bluetooth-amplifier-for-outdoor-speakers-bass-shaker-sim-4) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-12*