Help with port sizes

Zepcoe Bronze Member Username: Zepcoe TN Us Post Number: 34 Registered: Apr-06	Posted on Saturday, April 08, 2006 - 01:13 GMT Im trying to use this box calculator and it needs port sizes. what port sizes would i use on a box 35" W by 13" H?
GlassWolf Platinum Member Username: Glasswolf Wisteria, Lane USA Post Number: 11500 Registered: Dec-03	Posted on Saturday, April 08, 2006 - 01:23 GMT inner diameter? 3" for subs 10" or smaller 4" for 12" subs 6" for 15" or larger subs that's if you use one port per sub, those are minimum port diameters. as diameter increases, so will length.
Zepcoe Bronze Member Username: Zepcoe TN Us Post Number: 39 Registered: Apr-06	Posted on Saturday, April 08, 2006 - 01:24 GMT its (2) 12" eternals
GlassWolf Platinum Member Username: Glasswolf Wisteria, Lane USA Post Number: 11502 Registered: Dec-03	Posted on Saturday, April 08, 2006 - 01:28 GMT so two 4" ID ports. tune them to about 35Hz. calculate for a single 12" and single port, then just build the box like you jammed two of those bxes together to fit both subs.
Mark S Gold Member Username: Rzarector Coquitlam, Bc Canada Post Number: 1006 Registered: Dec-04	Posted on Saturday, April 08, 2006 - 01:29 GMT thats kinda vague gw a 12" explode isnt gonna need the same as a 12" XXX a sub that displaces more air will need a bigger port
Zepcoe Bronze Member Username: Zepcoe TN Us Post Number: 40 Registered: Apr-06	Posted on Saturday, April 08, 2006 - 01:57 GMT i said (2) Audiobahn Eternals
GlassWolf Platinum Member Username: Glasswolf Wisteria, Lane USA Post Number: 11504 Registered: Dec-03	Posted on Saturday, April 08, 2006 - 14:32 GMT not that big a factor. the minimum port size is just to reduce port noise, and ported enclosures limit excursion anyway so it's not like you're going to get enormous xmax from a vented box anyway.

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