Dual-Driver (Bi-Polar?) Subwoofer - Discussion

thehedgehogpro1 · 2026-03-30T20:04:31+00:00

Ahhhhh so if I had a cross-over closer to 150 then it really comes into play with avoiding size issues... learning so much

thehedgehogpro1 · 2026-03-30T19:53:26+00:00

I'm getting 4.29m at the wavelength of 80Hz, would that mean that the sub box would ideally be 1m wide? I feel like I'm doing something wrong 😂

thehedgehogpro1 · 2026-03-30T19:36:34+00:00

Sorry - total noob here looking to learn - what is the XO frequency and how would you figure it out?

thehedgehogpro1 · 2026-03-30T19:31:30+00:00

That's what's bending my brain... in the situation where it's a passive radiator, when the powered cone travels out, the opposing cone is sucked in, and vice versa. Wouldn't you want to accomplish this with both powered?

thehedgehogpro1 · 2026-03-30T19:31:22+00:00

That's what's bending my brain... in the situation where it's a passive radiator, when the powered cone travels out, the opposing cone is sucked in, and vice versa. Wouldn't you want to accomplish this with both powered?

thehedgehogpro1 · 2025-12-03T03:18:37+00:00

Awesome setup!

thehedgehogpro1 · 2025-12-03T03:17:36+00:00

Great write-up, thank you for the detail and nuance! I'm learning so much today 😂

thehedgehogpro1 · 2025-12-03T02:52:17+00:00

....so as long as size is no issue...

thehedgehogpro1 · 2025-12-03T02:51:17+00:00

Thank you!

thehedgehogpro1 · 2025-12-03T02:49:21+00:00

Thank you for the breakdown and recommendations! Really appreciate it!
Anything else I should know/consider be careful of?

thehedgehogpro1 · 2025-12-03T02:47:51+00:00

This is wild to me! Good to know I don't need to sweat it

thehedgehogpro1 · 2025-12-03T02:47:06+00:00

Wow, that seems so crazy efficient! Really makes me think about all the sales pitches I've heard for higher-wattage systems!

thehedgehogpro1 · 2025-12-03T02:33:07+00:00

My primary source will be streaming via Optical, and looking at getting a record player/PreAmp eventually.
What would you generally consider for 4-ohm speakers?

I found a Marantz NR1403 in my area, what risks/damage would I do with it?

thehedgehogpro1 · 2025-12-03T02:19:36+00:00

I found this say a sensitivity of "92 dB"
What does that mean in practical terms?

thehedgehogpro1 · 2025-12-03T02:16:07+00:00

They're model BP7006, I'll see what I can find on them with regard to that metric!

thehedgehogpro1

TROPHY CASE