How to Make Your Wired Speakers Wireless
I have been using Creative Sound Blaster 2.1 sound system since 2001 (it has been almost 20 years) and I am very satisfied with this product. It has high sound quality as the speakers of this series are winded coil Moreover I had a chance to use the 4+1 sound system from the same brand. Compared to 4+1 (even though this is the next generation), 2+1 is way ahead better in terms of sound quality. The reason for this is that the old speakers use winded coils. As there is, unfortunately, no wireless option in this series, I tried to convert this sound system into a wireless one, more precisely, I decided to integrate a Bluetooth adapter into the sound system.
For this integration, the following materials are required.
— Bluetooth adapter (Tp-Link HA100 Bluetooth-NFC 4.1)
— DC/DC Converter Regulator 12V to 5V 3A 15W
— Stereo jack Cable
— Micro USB Cable
I bought such a converter as my current adapter requires 5 Volts and 3 Amperes and the supply unit, into which I integrate this, works with DC current. You should choose your converter depending on your Bluetooth adapter and the supply unit, into which you integrate the adapter.
(I assume that you have the basic materials such as Voltmeter, Soldering iron, diagonal pliers, double-sided tape)
Step 1
Bluetooth adapter requires 5 Volts to operate, but the supply unit of our speakers works with 12 Volts. We will use a DC/DC converter in order to convert 12 Volts to 5 Volts. First, open the amplification unit in the subwoofer of the speaker by using a screwdriver. The input voltage to the supply unit of the amplificator is 12 Volts, connect the DC converter via a parallel connection. Then, supply the 5 Volts, required by Bluetooth adapter, via micro USB cable (solder the cable and then tape it).
Step 2
As we supply energy for the adapter, let’s make the audio input (aux in) connections. To do so, connect the stereo sound cable to the audio input line on the amplificator by soldering. An important point here is that our sound cable capacity to carry high current, a thin cable that does not allow to pass high currents through will cause sudden sound interruptions.
Step 3
Yes, we have finished the hard parts, now it’s time to tidy up, I prefer the Bluetooth adapter to be outside. Thus, I will tape it on the subwoofer by using double-sided tape, you can use hot glue instead. As a result, it looks like as in the below.
You can think that should we fixate the Bluetooth adapter somewhere within the subwoofer, could it be better, but there is a speaker with a strong magnet in the subwoofer case, Bluetooth adapter being close to magnet may cause resonance problems, in order to prevent this, it is better to place it outside, away from the magnet. Of course, it depends on your equipment as well, if you have a vertical subwoofer, for example, and have enough distance from the speaker’s magnet, then you can place it inside.
I would like to talk about some points before I finish, this integration is done with creative 2+1, your speaker configuration may be different, do not ignore this.
It’s all that simple!
