Silver Member Username: Comerz
Post Number: 127
Registered: Nov-07
|
Posted on Ok i did the calculations on a calculator and put in my box height, width, depth ect and it came back that it was tuned for 34hz.
I dont get it. My local audio shop told me my box was tuned right off when he tried to do my gains on my amp by hand.
I really do think it is too big for the sub but that calculations still worked it out to 34hz. ANy help here guys? 
Width- 31"
height- 15"
depth (top+Bottom)- 15"
Port hole length- 2.5" |
Gold Member Username: Southernrebel
Monroe,
Louisiana
3 DD3515s, 2...
Post Number: 6711
Registered: Mar-04
|
Posted on The port is 13.5"x2.5"...right?
How long is it? |
Silver Member Username: Ducka
Shelby Township,
MI
United States
Post Number: 376
Registered: Jan-08
|
Posted on For future reference... Make 1 thread instead of two that ask the same thing. |
Silver Member Username: Comerz
Post Number: 128
Registered: Nov-07
|
Posted on yea its 13.5"x2.5", forgett how long the port is. the box is 31" wide.
Well today the guy at my local audio shop said make a box 1.5 sq ft and itl pound way louder than it does.
??? |
Silver Member Username: Ducka
Shelby Township,
MI
United States
Post Number: 381
Registered: Jan-08
|
Posted on What kind of subs? |
Silver Member Username: Comerz
Post Number: 129
Registered: Nov-07
|
Posted on alpine 12" type R |
Gold Member Username: Drant19
DUB-C,
TX
Post Number: 1179
Registered: Aug-07
|
Posted on 1.5 sq ft sounds a little on the small side for a Type-r.
i built a box for a 12" R and it was 2.5cuft before displacement tuned to 35Hz and it sounded great. good amount of output for a single 12 |
Silver Member Username: Ducka
Shelby Township,
MI
United States
Post Number: 382
Registered: Jan-08
|
Posted on Yeah your going to want around 2.0 cubic feet for one type-r and 35hz is a great frequency. |