Hello,
I was planning to build a THT but gave up on the idea because of the size of it. I currently have an ED A5-350 that comes with a 550W amp and goes down to 17hz per its specs.
I would like to build 2 separate Dayton DVC 385-88 subwoofer using an ep4000 amp (I already have these equipment).
I am not sure if it would be possible but, the idea is to beat the performance of my current sub. My theater room is 19x14.5x8.
However, I have some limitations. The size of each box can not be larger than
22.5"W X 23.5H X 25D . I would like to build vented box if possible as It will go down to lower frequencies. These subs will be used for only HT purposes.
The idea behind this built is to beat the performance of my current sub.
can someone please help me with a design using the above dimensions?
Thank you for your help,
So I have modeled up the driver using the dimensions you have given. The dimensions you supplied offer a net enclosure volume of 4.606ft^3 after all displacement factors are taken into account.
Shooting for a low tuning frequency and balancing output capability I get a 20.13hz tune with a 1.625" x 21" slot vent 44.25" long. This assumes .40ft^3 driver & bracing displacement along with factoring the vent displacement in your given enclosure dimensions.
This design yields a simulated anechoic f3 of 24hz at 110.6db. The -6db point is at 19.6hz and the -10db point is at 16.2hz at 103.5db.
This design assumes a low pass x-over at 80hz 2nd order slope (12db/oct.)
This driver really craves a larger enclosure. For instance pushing to 7.75ft^3 net volume and dropping to an 18hz tune allows an anechoic f3 of 18hz at 109.9db and a -6db point of 15.59hz at 106.9db.
All simulations assume 350 watts of input power and have a vent velocity no higher than 17m/s.
*** for beating your current sub, I really don't know. One would have to build a design to verify the measurements and compare the two. Then obviously listen to both to make the decision. Since you have the equipment, what do you have to lose besides a few hours and $50.00 for some mdf?
I would put my bets on the DIY piece if well constructed. Though I am not that familiar with ED products.
