View Full Version : are 45's necessary in an aero box?

05-19-2009, 09:04 PM
just as the title states, will you see an gain using 45's in a box with aero ports?

if so, which corners will i put them in? its not like a slot port where you would put the 45's in the corners that would direct the airflow towards the slot port.

just something i was wondering as i just built my first aero box

SSS 18734
05-19-2009, 09:06 PM
Completely unnecessary. You'd be much better off adding bracing in a weaker spot.

05-19-2009, 09:07 PM
I wouldnt see why you would get any incredible gains from 45's. A port is a port really.

yeah yeah, theoretically 45's essentially do help air movement and whatnot, but to the ear, meh

05-19-2009, 09:34 PM
well i personally didnt htink they would help much but i wasnt sure.

05-19-2009, 09:38 PM
Since the port is the aero, the 45 will just be seeing air pressure, not actual airflow past it like when it is part of a slot port. So no, all it would do is take up internal volume and add very little bracing. Better off with a rod or dowel somewhere in the middle of the box if you're looking for bracing.

05-20-2009, 01:33 AM
It depends on their placement. A lot of people waste time putting them in every corner. I've done Termlab testing with them before, and whether they work or not is box dependent.

05-20-2009, 01:41 AM
I've seen 1db gains using resin 45's in all corners on an aero box...But like Lakota said, its box dependent...Cant hurt though....

05-20-2009, 01:50 AM
It may not have been the 45's though that caused the dB gain. It could've been the reduction in volume that the 45's caused or the fact that the reduction in volume raised the tuning and they scored 1 dB higher on 45 Hz instead of 44 Hz or whatever. You get the point thought, it's almost all hit'n'miss.

05-20-2009, 10:20 PM
if your looking for a gain on the meter go buy one unless you already have one and start testing. you will not be able to hear the gain you will get from the 45's

05-21-2009, 12:24 AM
Cant hurt though....

Actually, yes it can. I've lost 0.5 dB from a corner before.

05-21-2009, 12:27 AM
45's are never necessary, but they're alot of fun :naughty: