Giving your favorite wired speakers a new lease on life is easier than ever with a wireless speaker conversion kit. These versatile devices, ranging from compact amplifiers to dedicated streaming boards, allow you to cut the cord and enjoy high-quality audio from your smartphone, computer, or streaming services. Whether you’re an audiophile seeking pristine sound or a DIY enthusiast looking for a smart home project, the right kit can modernize your existing audio setup without the cost of a brand-new system.
The market offers a diverse array of options to suit different needs and skill levels. You can find all-in-one stereo amplifiers with built-in Bluetooth, Wi-Fi receiver boards for multi-room audio, and even components for building a custom Raspberry Pi streamer. This roundup highlights eight top-rated kits for 2025, helping you navigate the features and find the perfect solution to make your speakers wireless.
Top Wireless Speaker Conversion Kits for 2025
- S.M.S.L AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2
- Arylic Up2Stream DIY Wi-Fi & Bluetooth Audio Receiver Board
- Dayton Audio WBA31 Wireless Wi-Fi Streaming Amplifier Board
- JUSTBLO WiFi Audio Receiver Board with Multi-Room Streaming
- Acrylic Up2Stream Amp 2.1 Stereo Amplifier Board
- HiFiBerry Amp2 with DAC+ DSP Audio Card for Raspberry Pi
- Audiophonics ESP32-A1S Audio Kit with Bluetooth 5.0
- WiiM Mini Wi-Fi Multiroom Audio Streamer
S.M.S.L AD18 Audio HiFi Stereo Amplifier with Bluetooth 4.2
The S.M.S.L AD18 is a feature-packed mini amplifier that serves as a complete hub for your audio system. It combines a high-power Class D amplifier with an extensive selection of inputs, including optical, coaxial, USB, and analog, making it compatible with nearly any audio source. This versatility allows you to connect your TV, computer, and various media players simultaneously.
For wireless connectivity, it features Bluetooth 4.2 with support for the high-quality apt-X codec, as well as NFC for easy pairing. With an output of 80 watts per channel and a dedicated subwoofer output, it can drive a 2.1-channel speaker setup with authority. The inclusion of a separate headphone amplifier circuit makes it a truly all-in-one desktop audio solution.
Arylic Up2Stream DIY Wi-Fi & Bluetooth Audio Receiver Board
Ideal for DIY enthusiasts, the Arylic Up2Stream board is designed to be integrated directly into your existing speakers or amplifiers. It provides both Wi-Fi and Bluetooth connectivity, enabling high-resolution audio streaming over your home network for superior sound quality compared to Bluetooth alone. This board is a fantastic way to add smart audio capabilities to a vintage or passive speaker set.
It supports multi-room audio synchronization, allowing you to group it with other Arylic-compatible devices for whole-home audio. The board is designed for easy connection to amplifier sections and includes access to various streaming services and internet radio through its companion app, offering a high level of customization and control.
Dayton Audio WBA31 Wireless Wi-Fi Streaming Amplifier Board
The Dayton Audio WBA31 is another excellent board-level solution that combines a 30-watt stereo amplifier with Wi-Fi streaming functionality. This integrated approach means you only need a single board to add both wireless connectivity and amplification to a pair of passive speakers, simplifying your DIY project.
It works with popular streaming protocols like AirPlay 2 and Spotify Connect, providing a seamless experience for Apple and Spotify users. The board also features analog and digital audio inputs for wired connections, giving you flexibility in how you use it within your audio system.
JUSTBLO WiFi Audio Receiver Board with Multi-Room Streaming
The JUSTBLO receiver board focuses on delivering a robust Wi-Fi streaming experience with multi-room capabilities at an accessible price point. It allows you to stream audio from your phone or computer over your local network, which typically offers a more stable connection and higher audio quality than standard Bluetooth.
Its key feature is the ability to synchronize audio playback across multiple JUSTBLO devices in different rooms, creating a cohesive whole-home audio system. This board is a straightforward solution for anyone looking to build a budget-friendly, synchronized multi-room setup without relying on a major brand’s ecosystem.
Acrylic Up2Stream Amp 2.1 Stereo Amplifier Board with Wi-Fi & Bluetooth
This board from Acrylic is a powerful all-in-one solution that includes a 2.1-channel amplifier alongside its Wi-Fi and Bluetooth receivers. With a dedicated subwoofer output and sufficient power for main speakers, it is perfectly suited for building a compact bookshelf system or even a wireless soundbar.
It supports high-resolution audio streaming and works with the Acrylic multi-room ecosystem. The combination of amplification and wireless connectivity in a single board makes the Up2Stream Amp 2.1 a very efficient and compact choice for advanced DIY audio projects.
HiFiBerry Amp2 with DAC+ DSP Audio Card for Raspberry Pi
For the ultimate custom streaming solution, the HiFiBerry Amp2 is an audio card that attaches directly to a Raspberry Pi single-board computer. This setup turns the Pi into a high-quality, network-connected audio streamer and amplifier. It includes a high-performance DAC (Digital-to-Analog Converter) and a DSP (Digital Signal Processor) for advanced audio control.
This product is aimed at users who are comfortable with a bit of technical setup, as it requires a Raspberry Pi and software configuration. The reward is a highly capable and customizable audio streamer that can run open-source software like Volumio or Moode Audio, offering unparalleled flexibility and sound quality.
Audiophonics ESP32-A1S Audio Kit with Bluetooth 5.0
This kit is centered around the popular ESP32-A1S module, which provides a solid foundation for building a Bluetooth audio receiver. With Bluetooth 5.0, it offers improved range and stability over older versions. The kit typically includes the necessary board, audio connectors, and sometimes a case, providing almost everything you need to get started.
It’s a great project for those interested in learning about electronics and embedded systems while creating a practical audio device. You can program the ESP32 chip yourself for custom functionality or use pre-configured firmware to quickly set up a reliable Bluetooth receiver for your stereo system.
WiiM Mini Wi-Fi Multiroom Audio Streamer
The WiiM Mini stands out as a ready-to-use, standalone streamer that requires no assembly. Simply connect it to the auxiliary input of your existing amplifier or powered speakers via its optical or analog output. It focuses on Wi-Fi streaming for the highest possible audio quality, supporting services like Amazon Music, Spotify Connect, and Tidal Connect.
With built-in support for Amazon Alexa and multi-room audio, it offers a user-friendly experience that rivals much more expensive brand-name streamers. Its compact design and simple setup make it an excellent choice for anyone who wants to add high-quality wireless streaming to their Hi-Fi system with minimal effort.
Buying Guide: How to Choose a Wireless Speaker Conversion Kit in 2025
Thinking about giving your old speakers a new lease on life? I get it. The idea of turning a classic pair of bookshelf speakers into a modern, streaming-ready sound system is pretty appealing. But with so many options for wireless speaker conversion kits on the market, it can be tricky to know which one is right for your setup. I have been through this process myself, and here is what I think you should consider before clicking that buy button.
First, you need to figure out your connectivity. What kind of wireless audio do you actually use? If you are deep in the Apple ecosystem, a kit with AirPlay 2 might be your best bet. For everyone else, a model that supports high-quality codecs like aptX HD over Bluetooth is a solid choice. If you want to move beyond Bluetooth and have a more stable, whole-home audio system, look for kits that feature Wi-Fi connectivity and support for platforms like Spotify Connect or Tidal Connect. This gives you a much more robust and flexible listening experience.
Next, consider the physical connection and power. This is the part that often trips people up. You need to know how you are going to connect the kit to your existing speakers. Most kits have standard speaker wire terminals, which is straightforward. But you also need to power the amplifier inside the conversion kit. Some units have an internal battery, which is great for portability, but most require a separate power adapter. Make sure you have an outlet nearby. Also, pay close attention to the power output (watts per channel) of the kit’s amplifier. You need to match this to the power handling of your speakers to avoid damaging them or ending up with weak sound.
Finally, think about the extra features that matter to you. Do you need a built-in DAC (Digital-to-Analog Converter) for connecting to a TV optically? What about a physical volume knob, or a subwoofer output to add some bass later? Multi-room functionality is another big one; if you plan on building a system with speakers in multiple rooms, you will need kits that can talk to each other over your Wi-Fi network. My advice is to make a list of your must-haves versus your nice-to-haves. This will help you narrow down the list of the 8 top rated wireless speaker conversion kits 2025 and find the perfect match for your vintage audio gear without overspending on features you will never use.
FAQ
What exactly is a wireless speaker conversion kit?
It is a device, usually a small amplifier or receiver, that you connect to your traditional “dumb” speakers to make them wireless. The kit handles the connection from your phone, computer, or streaming service via Bluetooth or Wi-Fi, amplifies the audio signal, and sends it to your speakers through standard speaker wires. It is essentially the brains you are adding to your speaker’s brawn.
Will using a conversion kit damage my old speakers?
If you choose a kit with an appropriate power output, it should not damage your speakers. The key is to ensure the kit’s amplifier is not significantly more powerful than what your speakers can handle. Check the speaker’s specifications for power handling (in watts) and try to match it with the kit’s output. It is better to have an amplifier with a little more power than not enough, as under-powering can cause distortion that is actually more likely to harm your speakers.
What is the real-world difference between Bluetooth and Wi-Fi kits?
In my experience, the difference is noticeable. Bluetooth is super convenient for quick pairing with your phone, but it can suffer from range issues and audio compression, especially with standard codecs. Wi-Fi kits generally offer a more stable connection, better range throughout your home, and support for higher-resolution audio streaming. They also often enable features like multi-room audio, which is harder to do reliably with Bluetooth. For a stationary home audio setup, I usually prefer Wi-Fi.
Can I connect a turntable to a wireless speaker conversion kit?
You can, but there is a catch. Most conversion kits do not have a dedicated phono input with the necessary preamp to boost the very low signal from a turntable’s cartridge. To make this work, you would need to run your turntable through a separate phono preamp first, and then connect the preamp’s output to one of the kit’s analog line-level inputs (like an RCA aux input).
How difficult is the installation process?
I found it to be surprisingly simple. If you can connect two wires to two terminals (red to red, black to black), you can install one of these kits. The most complex part is often just finding a clean way to manage the wires and place the kit near a power outlet. There is no soldering or advanced technical skill required for the basic setup of most modern kits.
Are there any good battery-powered options for true portability?
Yes, the market has evolved, and there are several compelling battery-powered conversion kits available. These are perfect for taking a pair of bookshelf speakers to the backyard for a party or setting up a system in a room without easy access to a power outlet. When looking at the 8 top rated wireless speaker conversion kits 2025, you will find that several models now include high-capacity rechargeable batteries, offering many hours of playback on a single charge.