I am in the process of purchasing a sub and by limitation of space I will have to place the sub in the corner.... inches from the side wall and probably 1.5 feet from the back wall.

My question is, do I need to confine myself to a front firing front ported (or sealed) design?

How much space do you need to keep a port away from a wall? I have 18" would that be adequate to allow a rear ported sub design? What about down firing... Any issues with nearby walls?

I have been lookiing at a down firing rear ported sub (ED A5-350) and i'm concerned, given the corner loaded position, that it would be a poor choice??? Should I stick with front port/firing options???

Any thoughts would be appreciated!

I am in the process of purchasing a sub and by limitation of space I will have to place the sub in the corner.... inches from the side wall and probably 1.5 feet from the back wall.

My question is, do I need to confine myself to a front firing front ported (or sealed) design?

How much space do you need to keep a port away from a wall? I have 18" would that be adequate to allow a rear ported sub design? What about down firing... Any issues with nearby walls?

I have been lookiing at a down firing rear ported sub (ED A5-350) and i'm concerned, given the corner loaded position, that it would be a poor choice??? Should I stick with front port/firing options???

Any thoughts would be appreciated!



A 4" port at least 4-5" clearance should be fine...An 18" driver also.

18" is plenty of room for a port. Something to note, is even if you give a 4" port 4" of clearence, the gap can still introduce a bit of loading and act like an extension to the port, droping the tuning freq. a tad. Will that matter? Not usually.

So is a front firing/ported sub any better/worse than a down firing/ported when in a corner like I described?

I.E. Given the corner I need to place the sub in.... Which design would be preferred?

Which design would be preferred?

I dont think sceintifically they will be different, there will be lots of subjectivity in the responses.

I dont think sceintifically they will be different, there will be lots of subjectivity in the responses.

+1

So long as you have ample room for the port and driver, there usually wont be a difference. Sometimes there will be a measurable difference and you might even be able to tell a difference if you A/B them, but otherwise, you wont be able to tell. You're better off picking the better performer of the two subs as opposed to picking by their port/driver arrangment.