Optimal Sub Angle and Amp Size Options

[LastOfTheSTs]

Hey Guys,

I'm planning a 10" or 12" sub for the trunk just to round off my upgraded sound system - I was planning on probably making my own box for it and the amp but I was wondering, if there is indeed one, what is the best angle for the sub to be mounted at would be, i.e. straight up. straight back towards the end of the car, straight forward to the front or at a 45 degree angle... any thoughts?

Also does the box need to be any specific size in relation to the sub size beyond physically holding it?

Thanks for the advice

LST

This post has been edited by LastOfTheSTs: Aug 31, 2008 - 11:58 AM

[D-Man]

...I also need to consider what size AMP...
...I listen to rock music and I'm looking to acheive a good sound definition rather than sheer volume...

Sub model: JBL: GT5-10 - 10" (JBL GT5-10" Guide)
So from the advice here and my research I'm looking at the following for the sub enclosure for a 10" sub:

A ported enclosure sounds best sound against complexity of build. For my combo I will need 35.4 liters.
Different shape sides to prevent resonance issues
Have the Sub pointing towards the rear of the car with a slight angle upwards

Any other tips - also any thoughts on the my Amp/Sub choice, will this be enough for my needs?

This sub that you have shown will require a 300W amp, with the gain turned about 90% of the way. Port your box, map the sound waves with strings and cones. Death was correct in the fact that alot of what you do is dependent on the size of amp, however for a 10-12, What i've said will be premium. (He's got a 15, so his turning is different than what your's is going to be.) (infact, i've got 2 high power 12's, I have to tune different than most )

Building a box, Remember to use Medium Density Fiberboard (mdf) and you'll want it about 3/4 inch. For this sub your box will need to be 1.25 ft.³ (cubed) with a 3" x 8 5/8" port in it.

Also; DO NOT use silicone sealant in between the boards of the box. It will provide cushion and not "hit" like it's supposed to. Use wood glue or something HARD. Afterward, you can use the silicone to make sure that all edges are air tight.

This is all very technical; but it will sound fine if you should be off a .00213 inch J/k! Seriously though, if you're off a little bit, it wont make much of a difference; just do your best and take lots of pictures. Good luck.