Help figuring out size for a Stryke Sonotube

FredC

Grip
Joined
Jul 7, 1999
Messages
21
I posted this on teh Stryke forum also, but thought I would get a good idea here too.

I plan on building a sonosub with either an AV12 or AV15, but am not good with the modelling tools. I'm just trying to figure out what size I would be looking at to tune the sub to 17-20 Hz. I will most likely be using either 18 or 24 inch Sonotube, and it will be ported, not sure diameter, but probably 4-6 inch PVC. Any help would be greatly appreciated as I'd like to order the driver in this pre-order. Thanks alot!

Fred
 

TimForman

Supporting Actor
Joined
Dec 4, 2002
Messages
847
More info please. Do you prefer flat bass response or do you want it to "hit you in the chest"? Do you listen to a lot of music? If so, what kind? How much room do you have for a sub?
 

FredC

Grip
Joined
Jul 7, 1999
Messages
21
I will use for mostly movies, probably 80/20 movies/music. Music is pretty diverse, from Country to Rap. I don't have a room size yet as I will most likely be moving in the near future, but don't want anything huge. I plan on using a bottom plate below the feet, I'd like to keep it under 5 ft. tall.

As for flat bass response or hit me in the chest, I'm not sure. What are the characteristics of flat bass response? I'm guessing pretty even performance to a point and then it deteriorates?

Thanks
 

TimForman

Supporting Actor
Joined
Dec 4, 2002
Messages
847
Some people build (or buy) very accurate subs and then are disappointed because it doesn't give them the big "punch" like a car sub. A good accurate sub like a Tempest in a sealed enclosure will go very deep and shake your house but it doesn't make your chest feel like it's caving in. Those types usually exaggerate the mid-bass frequencies. It really depends on personal preference. For movies most people enjoy some "punchy" bass like a vented Sonotube provides but not so much for music. Ones that don't like to compromise may build two different subs.
 

TimForman

Supporting Actor
Joined
Dec 4, 2002
Messages
847
Here's what I would do.
Stryke AV15
Sonotube 18"Dx40 1/4"L
Parts Express Precision port 4"Dx9"L

168.4 liters
tuned at 21.8 Hz
 

FredC

Grip
Joined
Jul 7, 1999
Messages
21
I guess I would fall somewhere in the middle if that's possible. I don't really crank up the volume to reference levels anyway, so I I don't want anything "boomy". I will be upgrading from a JBL PSB-10 which sounded ok, until the amp went out.

Thanks
 

TimForman

Supporting Actor
Joined
Dec 4, 2002
Messages
847
I think my recommendation stands then. It's very flat into the 20's but should still give you the results you want for movies. It's a good compromise. DustinB made something similar with an Adire Tempest. Dustin's Sonosub
 

TonyiBe

Stunt Coordinator
Joined
Jan 30, 2003
Messages
96
BRyan,

I am running a AV15 in 6.5ft3 with dual 4" flared ports. WoW i can't imagine wanting more BASS. I get a headache after a short while of watching a movie with the volume pupmped up..
 

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