What is the problem? Two problems which may occur when it comes to the control box are air noise and impact noise. The control box also functions as a sound box, which can be solved by doing the following.
Airborne noise through a hole in the control box floor This problem can be solved by properly sealing the hole first, for example by means of PUR foam. Then, you can insulate the control box on the inside or outside by equipping it with Isomat TS (type TS8) sound insulation. You can glue these plates with Saba Select contact glue. The inside of the control box should be equipped with sound-absorbing foam. Tecnocell (recommended thickness minimally 25 mm) is extremely suitable for this, a self-adhesive product.
Contact sound due to Morse control Throttle is given via a Morse cable. This is a solid steel wire that is attached to the throttle of the engine. Vibration energy from the motor is transferred to the control box via the solid steel wire. Prevent this contact noise by first checking that the control cable is not touching anything. Then, cover the cabinet with Isomat TS sound insulation and Tecnocell sound absorption as described above. There are also morse vibration dampers on the market that can help with this.
Below you will find the products for insulating the control box