How To Convert Your Old Stereo Receiver for Bluetooth

If you have an old stereo receiver without Bluetooth connectivity, you don’t have to purchase a new Bluetooth-enable stereo. The current market offers plenty of Bluetooth adapters that are easy to install and connect to your old stereo.

Convert Your Old Stereo Receiver for Bluetooth

Even with no experience, this post will guide you on how to install the Bluetooth adapter gadget.

By observing the tips highlighted, we guarantee you will successfully install the Bluetooth adapter. The recommendations are for DIY purposes.  

Also read: How To Connect An Old Receiver To A New Tv

How To Convert Your Old Stereo Receiver for Bluetooth

As an affiliate, I may collect a share of sales or other compensation from the links on this page.

Here are 10 tips on how to convert your old stereo receiver for bluetooth:

1. Use the Best Home Adapter

Currently, the home Bluetooth receivers market has plenty of options. Not all are intended for system receivers. Some are for home theaters and high fidelity (Hi-Fi) systems, while some have a slightly low range and strength.

Some are Bluetooth 5.0 enabled, which may not be compatible with older mobile devices. Reviewing five top adapters will help make the right choice. These are the five top adapters we recommend for beginners, and they are all available on

However, you may choose other options based on your old receiver system compatibility and prices. 

2. Check Device Compatibility

After picking the best available adapter, you need to check for compatibility. The Bluetooth adapter should have similar output plugs to the old stereo receiver input plugs. There are converter cables for very old stereo receivers including those with digital inputs only.

After the device plug compatibility is ascertained, extending surge protection is next. Most Bluetooth adapters are wall-powered and surge sensitive, which means they may be damaged by little power fluctuations.

We propose you get a surge protector or use your existing one. Once the device compatibility is ensured, you can proceed to the next step.

3. Review Adapter Signal Strength

One of the common drawbacks of Bluetooth adapters is signal strength. Older models had a worrying signal strength deficiency. Most companies still use the same signal strength of 98 feet (30 meters).

Bluetooth 5.0 has superior signal strength to the previous generations. Most adapter devices with Bluetooth 5.0 have four times the data transfer speed than the previous generation.

The device also features multi-device support. We recommend that you only purchase a Bluetooth adapter with 5.0 signal strength. The audio quality is also smoother than Bluetooth 4.2.  

Additionally, Bluetooth 5.0 or higher has better caching. Caching enhances connection speeds and lowers the device power usage. You can also connect other devices like headphones and listen to the same audio.

4. Check the Number of Channels

With an adapter device that is Bluetooth 5.0 and above, you have channel options. Previous adapters only supported one channel.

The Bluetooth 5.0 or 5.2 has multiple output channels and can connect two or three devices. You can play the audio file on your old stereo receiver, headphone and smart device simultaneously.

Most Bluetooth adapters are easily interrupted by other devices. Devices with Bluetooth 5.0 to 5.2 feature “randomized advertising channel indexing.” This feature buffers other connections and enhances specific channel connections.

5. Reduce Power Consumption

Power consumption on Bluetooth connection is a concern for us all. Older Bluetooth adapter’s connection to mobile devices meant power drain to your smart device.

The newer generation comes with Generic Attribute Profile (GATT) caching technology, reducing power consumption. GATT caching devices come enabled with a database called attribute table.

GATT attribute table entries are known as attribute handles. The content of the attribute table is central to how the devices use low energy. Low energy consumption is realized by permitting devices to skip service discovery. 

GATT caching also allows users not to have a trusted server relationship to maintain their attribute cache across connections.

6. See if Your Old Stereo Receiver Has an HT Bypass

Check the manual to determine if your old stereo receiver has an HT bypass. If you don’t have the manual, you can check RCA ports labeled direct input.

The purpose of the HT bypass is to connect two external stereo systems with your old stereo receiver. HT bypass permits you to bypass integrated amplifier complex digital processing.

The HT bypass for a Bluetooth adapter will help connect the device to the old system. The RCA direct input port will be the location to connect the Bluetooth adapter. 

7. Buy a Pocket-Friendly Option

Buying a Bluetooth adapter should not be an expensive affair. The pricing of most quality Bluetooth 5.0/5.1/5.2 is mostly below $50 to $100 on Amazon. Therefore, a Bluetooth 5.0 adapter should be your first option. 

Amazon has a variety of cheap gadgets with this capability, such as this V5.0 Aisidra Bluetooth Transmitter Receiver. This pairs two devices at the same time and is compatible with multiple different devices.

We discourage buying second-hand products on the Facebook marketplace, since in many cases, you don’t know exactly what you’re buying, and the device may not come with a warranty.

Buying from unlisted companies should also be avoided at all costs. 

8. Convert Your Old Stereo Receiver for Bluetooth

Converting an old stereo receiver for Bluetooth is easy and similar to most devices. The first step is connecting the Bluetooth adapter to the old stereo receiver. How do you do this?

Remember the HT bypass or the RCA input port behind your old stereo receiver? Those are your connection points on the system receiver. The other area on the adapter device is labeled output. The Bluetooth adapter comes with white and red A/V cables. Some adapters might label the cables A/V cables.

You can easily match the red and white cables on both the Bluetooth adapter and the system receiver input port.

9. Connect Your System to the Bluetooth Adapter

Once the RCA or A/V cables connection is complete, now pair the devices wirelessly. First, power on your adapter and try to connect wirelessly. The audio source should be any smart device around the house that is Bluetooth-enabled.

Pairing should happen automatically, and on your smart device, you should connect to the Bluetooth adapter. The Bluetooth manufacturer will specify which pairing method to use. Most advanced devices have NFC, which only requires the devices to touch.

10. Power On and Test the Receiver

Once the smart device and the Bluetooth adapter are connected, power on your system receiver. Once paired, you may play any audio files on your old stereo receiver. Music should automatically be broadcasted since you’ve joined the adapter RCA cables to the system receiver.

Most system receivers have two sets of RCA input ports. If no music is transmitted, switch the cables on the other set of input ports.

Points To Remember

Converting your old stereo system to be Bluetooth enabled is simple. All you need is a compatible Bluetooth adapter. The current Bluetooth adapter has various offerings to suit your old stereo system connections.

After purchase, the gadget is plug-and-play. You will need to connect the Bluetooth gadget RCA cables to the output port, then join the other end of the RCA cables to the old stereo system input port. Once connected and powered, pair it with your preferred smart device and enjoy your music.

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