I haven't posted here in a long time and I've started to build boxes for people local to me. Thought you guys might like this. It's for a Fi BL 12. After the kid figured out how to turn his gains down to not clip the hell out of the signal, he said it sounded awesome.
The hole looks Fd up but it's just uneven cuts in the carpet; I used a guide for the circle and the carpet is folded down so the cuts are hidden.
Keep your fingers crossed, a guy contacted me and told me later in a phone call he really wanted one of these... I loved this box when I used it and almost cried when I had to sell it cause I needed money at the time