Originally Posted by DL86
For now my 21" reflex cab and pb-13 ultra provide more bass than I can use, my mains struggle to keep up with that combo.
I was modelling the Mal-X 21 and decided to do it for the new stuff like 21nlw9600 (slightly higher xmax stuff, $650).
The TH-112 is about 300L and if I could get about the same SPL line across the freqs with a reflex cab with the 21nlw9600 (290L, fb =32Hz).
However I need about 3.6kW for the reflex cab, and the TH-112 1kW.
Its mentioned that amp power is cheap, now I need to get something which is cheap (EP2500 tested is just about 1500W @ 8 bridged).
Cheapest is American Audio V6001 as recommended by Bossobass a while back, 1.2k and gives 3.65kW at 1kHz (derate for 20Hz ops)
The amp + 18sound driver (no wood, no labour) already costs more than the TH-112. Of course you could save much more and just accept very slight compromises in SPL with say a 21lw1400 (you got it for cheap via ebay right), V5001 etc....
There are other cabs for different apps, and if you can accept slightly less SQ other maufacturers' horns gives even more output for less money. Anyway my 1200 cu ft room complains way earlier than the limit of the bins, even if its reinforced concrete.
I think in branndon's GTG, the TH-50 was "pulled back" as things were falling off from the shelves in the room, rather than them hitting the limit.
What I see is that both horns and big-driver reflex cab both properly HPed gives out around the same distortion at the limit from what I see. But if you DIY and underport, that would be really bad for distortion. You could use light PRs, more costs of course. (References - new york shootout where they had horns and double 18s, audioroundtable)