I traded in my 10" Alpine Type R for a 12" inch one..

[godisanatheist 10+ year member]

Because running it at 2ohm just wasnt goin well with my PG 600.2. fukkit, I traded it in for a 2ohm DVC 12" model now its wired @ 4ohms. Working perfectly.

Question though.. the guy had the sub in a custom ported box. It looks kinda small tbh and it has a round port (kinda small too) but it sounds nice, atleast nicer than my 10" in the prefab box.

I have a 12" sealed box too btw, but im not sure if the size is right for the type r.

How do I find out what the tuning freq. is for the custom box? My old box had a square slot port, is the round one better?

edit: and im feeding it 600rms.. should i go higher?

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[blazeplacid 10+ year member]

what are the outside dimensions of the box?

scroll down a bit and type the numbers in

Subwoofer Enclosure Calculators, Fraction to Decimal, Parallel, Series, Port Length and Volume Calculators

 

[matt_bennett05 10+ year member]

Honestly if it sounds better TO YOU and isn't getting fed a clipped signal or getting smelly I don't see the prob?

 

[skdooley 10+ year member]

The round port is aero port. People typically use an aero port when they don't want to take up the space of a slot port. Nothing is wrong with an aero port, the roll off just tends to be a little quicker than that of a slot port. The aero port would also explain why the enclosure doesn't look very big to you.