Edward J M
Senior HTF Member
- Joined
- Sep 22, 2002
- Messages
- 2,031
Maybe I should post this over at the "Cult Of The Infinitely Baffled", but I know some of you frequent both forums.
I'm helping a friend design a twin Tempest IB subwoofer in his basement (he has an adjacent and completely isolated storage cellar that is perfect).
We've been discussing transient response and group delay and I'm not sure what these characteristics are in an IB application as compared to a sealed acoustic suspension design.
Since the IB driver is essentially operating in free air with no enclosure loading, does it take longer for the drive motor and suspension to stop moving after the signal stops? If this is true, would it manifest itself as "bass ring" or "overhang" and is this a common characteristic associated with IB subwoofers?
Would an amp with a really high damping factor (like a Crown) help minimize this, if it really is concern? Thanks.
Regards,
Ed
I'm helping a friend design a twin Tempest IB subwoofer in his basement (he has an adjacent and completely isolated storage cellar that is perfect).
We've been discussing transient response and group delay and I'm not sure what these characteristics are in an IB application as compared to a sealed acoustic suspension design.
Since the IB driver is essentially operating in free air with no enclosure loading, does it take longer for the drive motor and suspension to stop moving after the signal stops? If this is true, would it manifest itself as "bass ring" or "overhang" and is this a common characteristic associated with IB subwoofers?
Would an amp with a really high damping factor (like a Crown) help minimize this, if it really is concern? Thanks.
Regards,
Ed