been reading this topic with interest and have a noob question regarding enclosure volume. should DOS have their own volume calculations just like sealed and ported have, i say this because with ported the pressure acts against free moving air in a port and, in sealed the pressure acts against a 'static' cabinet, but with DOS the pressure is working against an 'active environment/element'. in my mind using calculations/volumes that were intended for ported/sealed seems incorrect.
if i've missed the point or am over thinking this, please let me know.
G
if i've missed the point or am over thinking this, please let me know.
G
This whole thing is very cool! BUT you did not label the electron flow direction on the clamps! How will the electrons know where to go?!?
Your water test reminds me of an old Lexus commercial. But even better than that, a gearhead buddy who convinced his friend (who had worked at Amoco doing research for Oldsmobile) to put an Olds engine into an El Camino. Oh LORD what a mess of a project. However, when it was done, you could not even see that it was running. The only motion was the pulley belts. Super super smooth, ya genius Mike miss the hell out of ya (Mike didn't take care of himself and dropped dead in front of his kids at age 37 😢)
By that last bit do you mean the other speaker?
The 2 drivers act as one large compound driver (Fs’ = Fs, Vas’ = 2x Vas, Qts’ = Qts). A sealed box acts like a sealed box and a vented box acts like a vented box.
dave
And don't measure a woofer hanging from a chain, as was the practice at one shall-remain-anonymous former employer of mine, that does not work! Hmmm maybe that has some contribution to why they are out of business...
Hi,
Just like any multi driver enclosure, the volume each driver will see is what you consider. It's no different than as if the drivers were not opposed, both just facing the same direction on the same baffle sharing a volume they both see. The only change is when you align them so they're in opposition, the forces inside the box get canceled between them.
Very best,
I have 4 of those drivers, they're great when on sale. Good for their excursion too.
Very best,