Hi guys. This is a driver I've been interested in ever since it first came out. With my life almost completely shut down, now's the time to do something about it I guess.
I've built boxes in the past (most recently sub boxes for it's big brother 21SW152 - which came out very well) but mostly from plans. I'm not a designer.
B&C's recommended enclosure for this 18 is 3.53 cubic feet tuned to 40Hz. That I'm keeping. This is
the reason I want to try this driver out.
They used that recommended box for their frequency response curve combined with a port 9 1/3 inches long and an area of 31 square inches. That gives a nice flat response at 1W/1m, but it's awfully small - and of course I'm going to be pushing it a lot harder than that. So I'm thinking that maybe I need a larger port? Here are the T/S parameters if any of you want to give this a go.
Resonance Frequency: 30hz
Re 5 ohms
Qes .21
Qms 4.3
Qts .2
Vas 5.93 cubic feet
Sd 187.55 cubic inches
No 2.2%
Xmax 16.5mm
Xvar 14mm
Mms 330g
BI 39Txm
Le 3.85mH
EBP 142Hz
If any of you have any curiosity about these drivers, I am building these - one way or another. And I'll let you know how they came out. I am in clubs every week, and their unique combination of size, power handling, and punch means they'll get used a lot. Here's a link to the driver:
https://www.bcspeakers.com/en/products/lf-driver/18-0/8/18ds115-8And thanks to anyone who may want to help me out!