[PeterThingholmDK]

Hello, a little introduction from me. I have just turned 60, and have been interested in hi-fi for almost 50 years. I live in Denmark, which is not always an advantage if you want to buy hi-fi out in the wider world.
I would very much like to order 2 pcs of GR Research Triple Threat kit soon, but would first like to hear about what experiences have been had regarding all base units forward, or an opposite direction .. which is best / what difference is experienced? Since No Rez will be a bit expensive to Denmark in freight + customs/VAT, I have thought of thin bitumen + thick felt instead.. is it a bad idea?
Since I also want to build the cabinets myself (again, because shipping + duty/VAT will make the flat pack very expensive), I have thought about whether the cabinets are the most optimal, or whether there will be advantages in making them larger, since I have reasonable with space?
I look forward to reading about other people's experiences, because my fingers are itching to get started on the project

[Jaytor]

I have built subs with all drivers facing forward and with alternating orientation. I don’t think there is a significant difference in the way they sound. The advantage of alternating is improved weight distribution. If you are building triples or quads, this can be worthwhile, particularly if the subs are placed on thick carpet. The downside is it’s more challenging to route the wiring, particularly if you are using solid core wire.

I don’t think there is any advantage of increasing the cabinet size. If anything, I would think larger panel size would increase the chance of resonances.

No-Rez works very well, but for a sub, you’d probably be fine with the material used for deadening vibration in cars such as Dynamat.