I have had two major car audio systems in the past, both were made of components that I found here and there for cheap, at the right time, or were given to me from others moving on... It was a miss match of good, bad, and some junk... Now, two houses, two children, two jobs, and 11 years later, I have more money and time to put towards this the right way and look forward to the kids helping with some of it. Minor remnants of previous systems remain spread across two cars, simply to hear the radio on my commute. This time, I would like to make a calculated attempt at installing a more proper audio system in my car. As I write this, I am realizing I have more questions beyond the box specs. I'll save those for future posts when I need them answered. I am new here, and new to car audio again after 10+ years, I'm sure much has changed since I last attempted anything new.
98 Subaru 2.5RS
Polk SR 124 SVC
I have come to understand that a sealed box provides for more accurate bass, not necessarily volume. That is why I am going this direction...
Polk states a sealed box with external dimensions of 16x18x11.5. Totaling 1.20 Cubic feet.
Using 1/2" MDF yields an internal dimension of 15 x 17 x 10.5 which equals 1.549 cubic feet.
Using 3/4" MDF yields an internal dimension of 14.5 x 16.5 x 10 which equals 1.384 cubic feet.
Using 1" MDF yields an internal dimension of 14 x 16 x 9.5 which equals 1.231 cubic feet.
I guess that 3/4" MDF is used, as that is what I hear about the most. This, I figure, accounts for the volume the speaker takes up inside the box? (0.18 cu. ft +/-)
Do I really need to be this accurate?
Am I over analyzing this?
Should this be as square of a box or rectangle as it can be, or can I angle one edge to fit against the back of the rear seat?
In either box design, should the sub face forward, to the seat, or rearward, to the trunk lid? (previous experience says rear, but that was a 2 12" bandpass)
Finally: How much amp should I be looking for to run this sub? (brand, model, etc...)
Many thanks for your input!