Repair guide: UNIT-4 Tweeter

Some components are expected to wear out over UNIT-4’s lifetime - main examples being batteries and speaker drivers. UNIT-4 has been designed to be disassembled with glue-free design by anyone with 2 screwdrivers and AIAIAI’s step by step repair guides. This will make sure your UNIT-4's will stay with you for as long as possible.


All you need is a thin, hard plastic tool or an old credit card and 2 cross head screwdrivers. We use a Phillips 00 and a Phillips 2.


Remove the front panel

  • Make sure UNIT-4 is turned off.
  • Use a thin, hard plastic tool or an old credit card and pull off the front panel.

Remove front housing

  • Take a screwdriver and remove all 16 screws as shown on the image below.

  • Place UNIT-4 upright and carefully lean forward while supporting the front.
  • If the front housing is too tight, we recommend using a flathead screwdriver or similar to pull the housing out. You can do this by pulling it out by the magnet locks.

Disconnecting the tweeter

  • Use a thin and pointy tool to unlock the cable connectors.
  • Unscrew the 3 screws

Install new tweeter

  • Carefully insert the new tweeter.
  • Connect the cable connectors.
  • Screw in the 3 screws.

Fix in front housing

  • Carefully tilt up the front housing and push into place. 
  • Make sure no cables are trapped.
  • Add all the 16 screws and hand tighten.

Mount front panel

  • Take the front panel and place on top of the front housing.
  • Push with 2 thumbs on the 8 points shown below.

Can’t find what you’re looking for?