My current diy speaker have the following components:

2405/2440/Hartsfield lens/k145 house in an 8 cu ft bass reflex box

tri-wired in an external crossover @ 500Hz and 9K Hz with terminals for bi-amping.

Currently it is driven by a diy 300B set mono blocks.

I am thinking of acquiring another set of amp maybe push pull kt88/6550 based tube amp or a solid state amp to augment the lower frequency.

Comments and suggestions are most welcome.

Thanks In Advance.