User's Manual

«CoP» Closed or Ported

The HEDD Type 20 MK2 and Type 30 MK2 can be used in either closed or in ported

mode. These are two fundamentally dierent systems that are available for the user to

compare and choose. There is no denite better between the two systems. We

recommend to compare carefully to nd the optimal option for your environment and

listening habits.

Switching Between Closed and Ported

By default, the HEDD speakers are "ported." This means that the bass port is open. To

switch to "closed" mode, please follow the steps below.

1. Insert the included HEDD plugs with help of the HEDD screw to close the ports.

Make sure that the screw is facing outwards!

Push the plugs deep into the bass ports. Make sure that you

can still reach the screw comfortable with your ngers to

pull it out. The plug should not go deeper than when the

bass port starts to bend and the resistance increases. Once

inserted, feel free to unwind and remove the screw.

2. Switch the knob on the backpanel of your monitors to Closed mode.

Please note that the headroom in Closed Mode is limited compared to Ported Mode.

We highly recommend to lower the volume before switching.

from Closed to Ported

To switch back to Ported Mode, stop the audio

playback, wind the screw back into the plug, gently

pull the plug back out again and change the rotary

switch on the backpanel to Ported.