Joe Mihok
Second Unit
- Joined
- Dec 14, 2003
- Messages
- 265
I just finished building and testing my Adire Tempest SBB4 sub and I'm quite impressed with the results. It's my first time hearing a decent sub in my HT so I was actually floored when I watched Matrix Revolutions and Finding Nemo over the weekend. Anyways, last night I decided to throw in an old CD full of test tones I downloaded on the internet (15hz-100hz) just to see what this sub can do. Well, all was great until I reached the 23hz mark. While the room felt pressurized and the walls were vibrating, I could also hear a faint pulsating noise. The niose was almost like a very quick "airy buzz" ??? It's very hard to describe. It got more and more intense as it got lower down to about 15hz until I could feel no vibration except for the "airy buzz" (the room did feel pressurized though.). Anyone know what this is and if it can be fixed ? I haven't painted or finished the exterior yet so I can always alter the ports if need be.
The specs for my SBB4 are:
Driver - Tempest 15"
Enclosure - 24" x 24" x 24" @ 194L
Ports - Dual 3" PVC @ 29.3 cm + internal/external flares
Stuffing - 64 ounces of PolyFil
Amp - Kenwood AVR (125watt x2 @ 8 OHM)
The specs for my SBB4 are:
Driver - Tempest 15"
Enclosure - 24" x 24" x 24" @ 194L
Ports - Dual 3" PVC @ 29.3 cm + internal/external flares
Stuffing - 64 ounces of PolyFil
Amp - Kenwood AVR (125watt x2 @ 8 OHM)