Rerurn to Romy the Cat's Site
In the Forum: Audio Discussions
In the Thread: A listening room for a domesticated Cat?
Post Subject: Port vs. Not SealedPosted by Paul S on: 7/11/2017
I agree that the right 15" is a nice size for mid-upper bass. I suppose yours are the 15" Vitavoxes that were made to go in boxes? Of course, the usual reason for ports is to "extend" LF, and most modern LF drivers are used in something like this, since the idea these days always seems to be to get all the LF a driver will do. On the other hand, if you just want an old driver with a thinner membrane to "breathe" and sound "alive", you might lose some LF extension. In fact, it's likely. There is the open back box, of course, and the open back with the "curtain" behind the driver. I have experimented with many holes of different sizes in the back of a lower MF (12" driver) cabinet, and I will soon try 15" driver in similar but larger boxes, hoping to preserve the good upper bass I've gotten from 15" in large open baffles, and just crossing my fingers about LF extension. Some of the old "factory" boxes had several slots around the front, but to date I've only heard sound suitable for theaters from these. Anyway, if you are decided on a box size, just messing with stuffing and the back might be a fairly easy way to learn more about your Vitavox, like how low you can get it without choking it. One advantage you have, of course, is to equalize at line level.
Best regards,
Paul SRerurn to Romy the Cat's Site