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# How to Make Your Own Bass Blocker

Fans of loud music sometimes use bass blockers to protect speakers from audio distortion and produce a crisper, clearer sound. Bass blockers filter out the lower audio frequencies from regular speakers leaving the sub-woofer elements to produce the bass sound. Make your own bass blockers with capacitors bought from a hobby or electronics store and connect them to your speakers at home.

## Step 1

Find the impedance of the speaker for which you want to make the bass blocker. You'll usually find this on a sticker affixed to the back of the speaker near the magnet. The impedance is the unit that is measured in ohms and it uses this symbol: Ω.

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## Step 2

Decide which frequencies you wish to block. Most bass sounds are below 150Hz, so this is a common value to use.

## Step 3

Calculate the capacitor value in Farads using the following equation:

C = 1/ (2* pi * R * fc)

Where: C is capacitance in farads; pi is 3.14; R is speaker impedance in ohms; and fc is frequency cut-off or 150Hz.

## Step 4

Use your capacitance value to source the correct impedance capacitors. If you cannot find the exact value, remember that capacitors add in capacitance when joined in parallel; for example, connect a 250uF capacitor and a500uF capacitor to make 750uF.

## Step 5

Connect the capacitors to the speakers by splicing them in at any point before the signal reaches the speaker.