A Question of Sound

Hello, friends.

Ask everyone a question.

I'm thinking of throwing out my end pot (pipe from Kat) and putting in two "empty pipes".

1. Has someone had experience with,
2. How do I get the right things?
3. Selling something like that from you
4. How do I go about building myself, what do I need

Please write me your experiences / conversions to the topic.

Would be great, thank you so much

Welcome
J.J.