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Link knock block - volume and knock

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Hello all,

After using det-cans for the last few years i got myself a set of Knock block.

Connected then with my det cans and went for a test drive.

Knockblock volume is all the way up (it's not loud at all)

At wot i can hear knock even if i lower the timing by 20%..

Needless to say that in my detcans i dont hear knock neither on the ecu knock sensor.

When i turned the knockblock volume 50% down, the knock noise was gone

Link support says the the volume isn't affecting the filtering, and maybe my headphones are no good with the volume all the way up...

Wondering if anyone had experience with this kind of problem.


Make sure your headphones have a 3 pole stereo plug, not 4 or more like some cell phone headsets.


I have a 4 pole one.

Is this the problem?

Most likely. There are several different 4 pole pinout/circuit variations, but most of them dont work correctly in a 3 pole socket. I suspect your speakers are probably only getting a very weak ground through the microphone circuit which will induce noise and lower volume.

I will buy a 3 pole and check again.

Adam thank you, awesome costumer service!

I had the same issue, switched to a 3 pole, works fine..

Update - switched to a 3 pole, works like a charm.