Tapped horn, cos I was bored? :p

[IDSkoT 5,000+ posts]

Not for a tapped horn. You want to tune the 1/4 wave length to a frequency that is lower than the resonant frequency of the driver as the horn will load down the drivers quite a bit. This loading effectively brings the woofers resonant frequency down closer to the 1/4 wave frequency.

I never understood the concept of 1/4 wave length.

1/4 wave length of what frequency?

 

[slam 5,000+ posts]

I never understood the concept of 1/4 wave length.
1/4 wave length of what frequency?

which ever u want.

 

[IDSkoT 5,000+ posts]

which ever u want.

Oh, alright. So just a quarter wave-length of whichever frequency you're tuning it to?

Now I just feel dumb.

 

[slam 5,000+ posts]

Oh, alright. So just a quarter wave-length of whichever frequency you're tuning it to?
Now I just feel dumb.

correct