Another bloody calculator

[ssh 924]

just curious but what does "low" vent mach speed theoretically do to the output? is it not as loud? cause unloading issues? curious is curious

If the vent speed is too high than port compression can occur, and depending on how high it is, it can cause audible noise and/or a reduction in output.

Is there a point when it can be too low?

From what I've read I haven't found anything mentioning any limits for too much port area / too low vent speed, but generally it's a moot point because the port length gets longer, and becomes increasingly difficult to fit in the enclosure.

I have been looking for an answer to that and have not came across anything either. I have read the lower the better and anything below .4 desirable.

0.4 as in 0.4*340.29 m/s = 136 m/s is way too much vent speed.

[ssh 924]

It needs to be mandatory for people to join this site that they have read at least one of the loudspeaker cookbooks

Can you offer up a little info on this?

I use an old box program that tells me vent noise may occur when the vent is too small.

Loudspeaker Design Cookbook by Vance Dickason.

[Quentin Jarrell 671]

Preferably the latest edition no. 7 ( I think). Best 35 bucks you'll ever spend.

[nem 2,019]

Ok if it makes you guys happy I will buy the newest one since I can't find my old one which I bought back in 1993.