Not to sound snipity but bass is not fast.If the "Q" is low enough and the F3 is typical of an eight inch driver what is deemed fast is rolled off bass, in other words it's a woofer not a subwoofer.
DIY is not for everyone, that is a fact.Yes, there are enough mass market subs out there.Vandersteen got around this with (3) 8" drivers with separate amps for each driver.The "Q" is adjustable also.A couple of these used would do you well.
The (4) 15's is an example of what I needed to acheive a response in my room.All the subs I listened to failed to dig as deep as my DIY system.Laughing out loud fails to help and only creates problems.Lets learn from one another and help this member find a sub that creates sound he can enjoy for years to come.
Good luck with your search. KG
DIY is not for everyone, that is a fact.Yes, there are enough mass market subs out there.Vandersteen got around this with (3) 8" drivers with separate amps for each driver.The "Q" is adjustable also.A couple of these used would do you well.
The (4) 15's is an example of what I needed to acheive a response in my room.All the subs I listened to failed to dig as deep as my DIY system.Laughing out loud fails to help and only creates problems.Lets learn from one another and help this member find a sub that creates sound he can enjoy for years to come.
Good luck with your search. KG