UDI

I am from Israel, it would be expensive to buy directly from your guy. (shippment would be around 300$ or more) the dealer in my country have a better price. is 0.75" MDF is enough for this sub ? its not too thin ?

I want to take the Z v3 18" !!! I'm thinking about building a new enclosure with MDF 0.75" I can have max of 6.5 cubic feet (before taking off sub displacement and ports) and If i go on 1" MDF, I can have 6.2 cubic feet (before sub and ports) sub displacement = 0.16 ports are - 0.81 both are around 1 c.f so it means with MDF 0.75" its 5.5 c.f for sub and with MDF 1" its 5.2 c.f that would be enough? or still not ? I have around 1 week to decide.

I really wanted 18", but there is not enough space in my trunk for 6 c.f box I thought maybe 4.5 would be enough. I'll probably go for the 15" how much would a flared port will affect? the ports I've got are normal, no flared end

another option is Zv4 15 (will be on 1.6k rms)

any idea about the box / ports? if i take the 15", make the port longer for lower tuning, or leave it as it is?

Hello, I'm about to order a sundown z v3 sub and I've got a 4.5 cubic feet box (after the sub displacement and ports, 4.5 only for the sub) I want the sub to be as louder as posslble, for daily use and I cant decide which sub to take. on sundown website it says 4 cf box for 18" ported. I want to play low and not 50hz+, more like 30-40 hz my box is total of 5.5 cubic feet, two round ports (pipes) 6" x 25.6" (by my calculations the box is tuned to 33 hz) I dont know which sub will give me better results. should I take the 18" ? should I take the 15" and make the ports longer? should i take the 15" and leave the box as it is? my amp is 1.6k and I've got XS Power D2400 battery, if it matters. any ideas or directions? Thanks!