Getting sound from your projector to external speakers wirelessly can help create a cleaner, less cluttered setup. With wireless transmission, you don’t have to run long cables across the room. There are a few different options for transmitting audio from a projector to speakers wirelessly. Here’s an overview of some of the best methods.
Bluetooth Transmitter
One of the simplest options is to use a Bluetooth transmitter. Here’s how it works:
What You Need
- Projector with audio output port (3.5mm or RCA)
- Bluetooth transmitter with audio input and Bluetooth connectivity
- Power source for transmitter (USB or wall adapter)
- Bluetooth speakers or headphones
How to Connect
- Plug the Bluetooth transmitter into your projector’s audio output port. Most transmitters have a 3.5mm audio cable for this. If your projector only has RCA audio out, get a transmitter with RCA inputs.
- Power on the transmitter. Plug it into a USB port on your projector or use the included wall adapter. The transmitter will pair mode.
- Pair the transmitter with your Bluetooth speakers. Put your speakers in pairing mode and connect with the transmitter, following the instructions for your model. The transmitter and speakers will now be wirelessly paired.
- Play audio from your projector. Sound will now transmit from the projector to the transmitter and then to your speakers. Move the speakers anywhere within Bluetooth range.
Tips
- Look for a low-latency transmitter to minimize lag between video and audio. aptX low latency transmitters work well.
- If you need extended range, get a Class 1 Bluetooth transmitter which can transmit to over 300 feet.
- To transmit to multiple speakers, use a transmitter that allows multiple pairing. Or pair to a Bluetooth receiver connected to speakers.
Wireless HDMI Solution
For the best quality and lag-free audio, use a wireless HDMI solution. This wirelessly transmits full uncompressed video and audio from your projector to a receiver.
What You Need
- Projector with HDMI output
- Wireless HDMI transmitter unit
- Wireless HDMI receiver unit with audio output
- Power sources for transmitter and receiver
- Speakers with audio input
How to Connect
- Connect the HDMI transmitter to your projector’s HDMI port. Power it on.
- Place the HDMI receiver near your speakers and power it on.
- Pair the transmitter and receiver units. They will connect wirelessly.
- Connect your speakers to the audio output ports on the receiver using the appropriate cables.
- Play video and audio from your projector. It will transmit wirelessly to the receiver and then output to your speakers.
Tips
- Look for a 1080p or 4K wireless HDMI kit to get full high definition video.
- Make sure the transmission range meets your needs. 60-100 feet is common.
- The receiver can also output to a TV or monitor to get both video and audio.
Connect Speaker with Built-In Wireless Receiver
Some powered speakers have built-in wireless connectivity, making it easy to connect directly with your projector without additional transmitters or receivers.
What You Need
- Projector or TV with audio output port
- Powered speakers with built-in wireless receiver (RF, IR, or Bluetooth)
- Audio cable for connecting projector to speaker
How to Connect
- Place your wireless speakers within range of your projector.
- Connect your projector’s audio output to the LINE IN port on one speaker using a 3.5mm or RCA audio cable. This speaker will get the audio signal and transmit to the other speaker.
- Power on both speakers. Put them in pairing mode to connect the two speakers wirelessly. The speakers will now be wirelessly synced.
- Play audio from your projector. The audio signal will be sent over the cable to the first speaker and then transmitted wirelessly to the other speaker.
Tips
- Look for speakers with RF (radio frequency) wireless for best sound quality and range, around 100 feet.
- Some speakers can connect wirelessly to your TV so no audio cable is needed. Just pair them with your smart TV.
- You can expand the system by adding additional wireless speakers and subwoofers.
Bluetooth Audio Receiver
You can make any conventional passive speakers wireless using an affordable Bluetooth receiver.
What You Need
- Projector with Bluetooth capabilities or Bluetooth transmitter connected
- Bluetooth receiver with audio outputs
- Power source for receiver
- Passive (non-powered) speakers with speaker wire inputs
- Speaker wires to connect the receiver to speakers
How to Connect
- Plug your Bluetooth receiver into power.
- Use your projector’s Bluetooth settings to pair it with the receiver. Or pair your transmitter to the receiver if using one.
- Connect speaker wires from the receiver’s speaker outputs to your passive speakers.
- Turn on your projector and play audio. It will transmit over Bluetooth to the receiver and then output to your speakers via the wires.
Tips
- Position the receiver somewhere inconspicuous like under a table near your speakers.
- You can find receivers with multiple audio outputs to connect several speakers.
- Opt for an aptX low latency receiver to minimize lag between video and audio.
Conclusion
Transmitting sound wirelessly from a projector to external speakers is easy with today’s Bluetooth, wireless HDMI, and wireless speaker technologies. Each method has its own benefits and ideal uses. Choose the option that best fits your projector setup, speaker needs, and budget. With the right wireless solution, you can easily untether sound from your projector and optimize your home theater.