--- product_id: 512761052 title: "Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers" brand: "fosi audio" price: "A$343" currency: AUD in_stock: true reviews_count: 13 category: "Fosi Audio" url: https://www.desertcart.com.au/products/512761052-fosi-audio-bt30d-pro-mini-bluetooth-amplifier-hifi-2-1 store_origin: AU region: Australia --- # Bluetooth 5.0 with 15m stable range 165W x2 + 350W power output Dual bass & treble control knobs Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers **Brand:** fosi audio **Price:** A$343 **Availability:** ✅ In Stock ## Summary > 🎧 Elevate your soundscape—compact power, pure clarity, total control. ## Quick Answers - **What is this?** Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers by fosi audio - **How much does it cost?** A$343 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/512761052-fosi-audio-bt30d-pro-mini-bluetooth-amplifier-hifi-2-1) ## 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 - • **Compact Premium Build:** All-metal chassis blends durability with sleek minimalism, fitting discreetly into any modern workspace or home. - • **Tailored Bass Control:** Fine-tune your low-end with dedicated SUB FREQ & SUB VOL knobs for immersive, room-perfect bass vibes. - • **Powerhouse Performance:** Unleash 680W of crystal-clear HiFi sound with dual TPA3255 chips powering your speakers and subwoofer. - • **Seamless Wireless Streaming:** Bluetooth 5.0 ensures stable, drop-out free audio up to 15 meters—perfect for indoor & outdoor setups. - • **Versatile 2.1 Channel Setup:** Easily connect passive speakers and subwoofers for a rich, cinematic soundstage that elevates every playlist. ## Overview The Fosi Audio BT30D Pro is a compact yet powerful 2.1 channel Bluetooth amplifier delivering up to 165W per channel plus 350W subwoofer output via advanced TPA3255 Class-D chips. Featuring precise bass and treble controls, Bluetooth 5.0 connectivity with a 15m range, and a durable all-metal chassis, it’s designed for audiophiles seeking high-fidelity sound in home, desktop, or outdoor environments. ## Description Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers : desertcart.co.uk: Business, Industry & Science Review: Very Good Little Amp - I am quite picky and want a clean, high-quality sound with plenty of volume when it comes to hifi. This is a very compact little amp (40mm high, 120mm wide and 160mm deep). It has a good quality feel and a reasonable weight to it. I am using it to drive 2 Q Acoustic Speakers (2020i) that are rated 75 watts at 6 Ohms. I have the amp connected via banana plugs. I would say the amp matches these really well and drives the speakers fully. Not too much and not too little. At max volume there is a touch of distortion but not that much and honestly whilst I do like loud music, I would not really want my music that loud in the kitchen, I have another set up for that elsewhere. The treble and base adjustment may in some ways seem old fashioned but I really like them as you can give it a little more base or treble depending on your speakers, the music and of course your personal preference. You can get graphic equalisers to add to your phone, etc, but the on-amp adjustment just seems more accessible. I am not using the bass driver and honestly I do not think I will. So why did I buy this amp when Fosi do a version with no bass driver? Well, desertcart had a discount that made this version only £5 more than the non-bass driver version. Another reason though was that this comes with a 32 volt power supply and the non-bass driver version ships with the 24 volt supply but can be upgraded to the 48 volt supply. This means you will not get full performance if you only buy the one that ships with 24 volt supply. You can upgrade on the Fosi website but not on the desertcart website. You can buy the 48volt power supply separately on desertcart but this pushes the price up quite a bit. So, therefore I preferred this slightly higher spec model that ships with the 32 volt supply from desertcart and this is the max supply allowed for this unit, I think. That was my logic and it would be interesting to know what Fosi themselves think about this and whether my deductions were correct. I think Fosi should add the 48 volt power supply option to the non-bass driver unit on desertcart. I use this in my kitchen and for me a key selling point is the size. I have built it in to the bottom of one of my kitchen cupboards and of course its small size means it is very discrete. The Bluetooth works fine. Still good volume. It connects easily and makes a little bleep to signal connection. You can also connect directly if you have the right cables. The sound quality and volume are marginally higher and cleaner when connected directly, but the Bluetooth still sounds good. My arrangement slightly compromises the view to the Bluetooth antenna, which I have rotated so it is exposed somewhat. This does not seem to make much difference and the range is still fine. I am using it with iPads, iPhones and Samsung phones. All work fine. So I am very happy with this Fosi unit but I would recommend you look at their full range, perhaps on their website before you decide the best one for you. I went for desertcart because I knew it would come quickly and be an easy return if I did not like it. I am a bit shocked and pleasantly surprised that such a tiny and affordable little unit can be so good. Well done Fosi. (Ultimately I decided to get the non-bass model with the 48 volt power supply. This does give slightly greater volume with less distortion which is why I have updated this review.) Review: Great value - Bought this to pair with a cheap turntable to play through the speakers of an old home entertainment centre that died a few years ago. The speakers were 2 ohm which limited my choices a bit, but I thought I'd take a punt on this little amp. So far, it's been great. Connecting it up was easy, standard phono plugs to the turntable and banana plugs to the speakers. The banana plugs weren't actually necessary as the port caps are screwable, so you can just attach the speaker cables and screw them down - but as I knew I was going to moving the whole system around until I was happy with it, I fitted the banana plugs to make it less of a hassle. The amp also has Bluetooth in, so you can play music from your phone too. I've got this set up as a 2.1 system, with a passive subwoofer and the amp drives that fine. The ONLY way this could be improved for me would be for them to add a balance control to even out my (by necessity) dodgy speaker placement. It all sounds great and for the price, I don't think you can go far wrong with this, so would recommend. ## Features - 2.1 Channel Amplifier:The BT30D PRO integrated amplifier features two sets of passive speaker outputs and one set of passive subwoofer outputs, making it easy to set up a 2.1 home theater or other stereo HiFi audio systems. (The BT30D PRO is an upgraded version, supporting up to 48V power supply for maximum power output. But not include 48V/5A power supply.) - High Power with Exceptional Sound Quality:Equipped with two high-end Texas Instruments TPA3255 Class-D amplifier chips, the amplifier home audio delivers clear and pure sound without distortion or clipping, stably outputting up to 165W x 2 + 350W of power. - Bass Beast:Whether you're a gamer, movie buff, or music lover, the subwoofer amplifier provides tight, smooth, and natural - sounding bass. It features two dedicated knobs for subwoofer control: the SUB FREQ knob allows precise frequency adjustment of passive subwoofers from 0 to 300 Hz, while the SUB VOL knob lets you set the desired volume level. This gives you full control over the bass output to suit your personal preferences and listening environment. - Bluetooth 5.0 Connectivity:This Bluetooth amplifier maintains a stable connection and delivers clear audio over a range of up to 15 meters. This makes it perfect for enjoying your favorite tunes or audio content in outdoor areas such as your yard, terrace, or poolside, without worrying about signal drop - outs or interruptions. - Exquisite Craftsmanship:This mini amplifier is meticulously crafted with a solid, all - metal body that ensures durability and longevity. The well - designed case, along with the high - quality controls and connectors, exudes a sense of premium build and attention to detail. The exquisite packaging further adds to the overall appeal and value of the bass amp. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09YNBHR73 | | Best Sellers Rank | 4,478 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 4 in Hi-Fi Amplifiers | | Box Contents | 32V/5A Power Supply x1, Bluetooth Antenna x1, Fosi Audio BT30D PRO Subwoofer Amplifier x1, User Manual x1 | | Brand Name | Fosi Audio | | Country of Origin | China | | Customer Reviews | 4.4 out of 5 stars 1,851 Reviews | | Item Weight | 1.5 Pounds | | Manufacturer | Fosi Audio | | Manufacturer Part Number | BT30D Pro | | Model Number | BT30D PRO | | Unit Count | 1.0 count | ## Product Details - **Audio output mode:** Stereo - **Brand:** Fosi Audio - **Colour:** Black - **Compatible devices:** Speaker - **Connectivity technology:** Bluetooth - **Connector type:** RCA - **Controller type:** Android - **Item weight:** 1.5 Pounds - **Special feature:** Built-In Bluetooth - **Surround-sound channel configuration:** 2.1 ## Images ![Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers - Image 1](https://m.media-amazon.com/images/I/51ai7X4dnLL.jpg) ![Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers - Image 2](https://m.media-amazon.com/images/I/71xfllqVRmL.jpg) ![Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers - Image 3](https://m.media-amazon.com/images/I/7121JXnKegL.jpg) ![Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers - Image 4](https://m.media-amazon.com/images/I/61zyvokoV2L.jpg) ![Fosi Audio BT30D Pro Mini Bluetooth Amplifier Hifi, 2.1 Channel Subwoofer Amp, with TPA3255 Chips 165W x2+350W and Bass Treble Controls, for Home Desktop Outdoor Bookshelf Speakers Subwoofers - Image 5](https://m.media-amazon.com/images/I/71pCjASiX7L.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Can this connect to 4 wharfedale diamond 9.1 speakers and a denon m41 cd player? thanks.** A: You can connect 2 passive speakers, 1 passive subwoofer, 1 powered speakers/powered subwoofer to DIY a stereo sound system. **Q: Will this connect to a sonos bean gen 2** A: Yes **Q: What is the Wrms power output for 8 ohm speakers?** A: The max power output is 165W×2+350W **Q: What's the rms wattage not max?** A: Hello, the maximum output value of this product is: 165W×2+350W. If your problem is not solved, you can contact our customer service, we have 24-Hour quick customer service for you. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very Good Little Amp *by S***R on 22 February 2024* I am quite picky and want a clean, high-quality sound with plenty of volume when it comes to hifi. This is a very compact little amp (40mm high, 120mm wide and 160mm deep). It has a good quality feel and a reasonable weight to it. I am using it to drive 2 Q Acoustic Speakers (2020i) that are rated 75 watts at 6 Ohms. I have the amp connected via banana plugs. I would say the amp matches these really well and drives the speakers fully. Not too much and not too little. At max volume there is a touch of distortion but not that much and honestly whilst I do like loud music, I would not really want my music that loud in the kitchen, I have another set up for that elsewhere. The treble and base adjustment may in some ways seem old fashioned but I really like them as you can give it a little more base or treble depending on your speakers, the music and of course your personal preference. You can get graphic equalisers to add to your phone, etc, but the on-amp adjustment just seems more accessible. I am not using the bass driver and honestly I do not think I will. So why did I buy this amp when Fosi do a version with no bass driver? Well, Amazon had a discount that made this version only £5 more than the non-bass driver version. Another reason though was that this comes with a 32 volt power supply and the non-bass driver version ships with the 24 volt supply but can be upgraded to the 48 volt supply. This means you will not get full performance if you only buy the one that ships with 24 volt supply. You can upgrade on the Fosi website but not on the Amazon website. You can buy the 48volt power supply separately on Amazon but this pushes the price up quite a bit. So, therefore I preferred this slightly higher spec model that ships with the 32 volt supply from Amazon and this is the max supply allowed for this unit, I think. That was my logic and it would be interesting to know what Fosi themselves think about this and whether my deductions were correct. I think Fosi should add the 48 volt power supply option to the non-bass driver unit on Amazon. I use this in my kitchen and for me a key selling point is the size. I have built it in to the bottom of one of my kitchen cupboards and of course its small size means it is very discrete. The Bluetooth works fine. Still good volume. It connects easily and makes a little bleep to signal connection. You can also connect directly if you have the right cables. The sound quality and volume are marginally higher and cleaner when connected directly, but the Bluetooth still sounds good. My arrangement slightly compromises the view to the Bluetooth antenna, which I have rotated so it is exposed somewhat. This does not seem to make much difference and the range is still fine. I am using it with iPads, iPhones and Samsung phones. All work fine. So I am very happy with this Fosi unit but I would recommend you look at their full range, perhaps on their website before you decide the best one for you. I went for Amazon because I knew it would come quickly and be an easy return if I did not like it. I am a bit shocked and pleasantly surprised that such a tiny and affordable little unit can be so good. Well done Fosi. (Ultimately I decided to get the non-bass model with the 48 volt power supply. This does give slightly greater volume with less distortion which is why I have updated this review.) ### ⭐⭐⭐⭐⭐ Great value *by A***R on 25 October 2025* Bought this to pair with a cheap turntable to play through the speakers of an old home entertainment centre that died a few years ago. The speakers were 2 ohm which limited my choices a bit, but I thought I'd take a punt on this little amp. So far, it's been great. Connecting it up was easy, standard phono plugs to the turntable and banana plugs to the speakers. The banana plugs weren't actually necessary as the port caps are screwable, so you can just attach the speaker cables and screw them down - but as I knew I was going to moving the whole system around until I was happy with it, I fitted the banana plugs to make it less of a hassle. The amp also has Bluetooth in, so you can play music from your phone too. I've got this set up as a 2.1 system, with a passive subwoofer and the amp drives that fine. The ONLY way this could be improved for me would be for them to add a balance control to even out my (by necessity) dodgy speaker placement. It all sounds great and for the price, I don't think you can go far wrong with this, so would recommend. ### ⭐⭐⭐⭐⭐ This little box does WHAT?? *by M***O on 15 October 2023* It’s so small, it’s so cute, it’s so SOLID. It’s a micro beast! My Use case scenario is my old Sony micro hifi was being used for my computer sound output. I decided to put the old Sony into the garage for some tunes in there which left me with only headphones on the computer. I got my brain into thinking I would like a retro speaker set like my dad’s old bang and Olufsen cx100’s back in the day. I found some on the big auction site that were well looked after and serviced. I also found a non amplified subwoofer that fits into my ikea kallax unit but needs an amp. I found reviews saying this fosi amp could run both my cx100s AND the sub. ITS AMAZING ! It runs them all and runs them as loud as I could dare go and then some! So easy to use, and the Bluetooth is so clear with little to no delay if you use it, though I’m happy with the red and white line in from the wired headphone output on the Mac. The Bluetooth from the laptop is just the icing on the cake for me. I found a copper volume knob for sale on the fosi website as it seems the latest pro amps have it included in the box.. mine didn’t. Small caveat… you cannot turn off Bluetooth. It’s always on and ready to pair if there’s nothing currently connected. If you have neighbours with a bad sense of humour.. you might be woken with the birdy song or Agadoo by black lace at 2 am. It’s not as funny as it sounds. I unscrewed my Bluetooth antenna. Still gives a 5m perfect signal but is just too far for the funny man next door to reach it now. ## Frequently Bought Together - Fosi Audio Bluetooth Subwoofer Amplifier 2.1, BT30D Pro Subwoofer Amp with TPA3255 Chips 165W x2+350W & Bass Treble Control, 2.1 Channel Sub Amplifier for Desktop/Outdoor/Bookshelf Speakers - Banana Plugs with Dual Set Screws,Black and Red Aluminum Shell,6 Pairs - Amazon Basics Speaker Cable, Easy Assembly, 16-Gauge, Bronze, 100 ft --- ## 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.com.au/products/512761052-fosi-audio-bt30d-pro-mini-bluetooth-amplifier-hifi-2-1](https://www.desertcart.com.au/products/512761052-fosi-audio-bt30d-pro-mini-bluetooth-amplifier-hifi-2-1) --- *Product available on Desertcart Australia* *Store origin: AU* *Last updated: 2026-08-15*