30 Aug, 12:48

Wtf is PE(w)???

Just curious im doing a box for a jmf custom 12. It was a dc audio sub converted. Im filling all the required fields per dc audio lvl 5 sub specs. And i run into this parameter pe(w) i assume it is freq resp @ 1(w) which is 82 db... idk for certain though


22 May, 13:24

Speakers connection

What is the meaning of speakers connection at the driver tab? is it like connecting it to the AMP at parallel or serie at seprate channels? Like both subs on 1 channel parallel 


6 May, 23:00

nemesis hectic 15

any specs on nemesis hectic 15? like cutout diameter , everything


16 Nov 2021, 19:49

How to change wiring from series to parallel?

I'm currently working with 2 D2 subs and it automatically assumes that im wiring to 4 ohms. I'm trying to make sure taht my impedance rise is accurate


29 Jan 2021, 14:22

Pe (w)

Hi guys pe(w) ?  Is this rms or peak wattage? 


24 Jan 2021, 16:31

Trying to add object. On IPad ice made it that far

I am trying to add an object however the screen doesn’t show an object.


11 Dec 2020, 05:56

how to print blueprints

how do i print blueprints from my laptop?


6 Dec 2020, 20:59

Box, speaker, port models are not displayed in the "3D" tab

I have chosen speaker but the box, speaker, port models are not displayed in the "3D" tab. What is a trouble?


8 Oct 2020, 08:12

Thickness of the round ports

Hello, Is there a possibility to change the thickness of the round ports? The thickness is 36mm by default and it seems that it is not possible to change this value, or at least I did not find it. Cheers,


9 Aug 2020, 03:09

Lost help harmony 15 1400rms dual vent box


7 Aug 2020, 09:44

Speakerboxlite prediction doesn't match REW measurements at all

So I designed a subwoofer in SBL, basically a 325mm cube with an Dayton Audio Ultimax UM10-22. The graph in SBL shows 40Hz at -3.8dB and 30Hz at -6.2dB. Now I built it with a Monacor SAM-300D and measured it with my UMIK-1 and REW, and it measures 40Hz at


30 May 2020, 19:30

New driver approval

Hello, everyone, I am new, and I am discovering with great pleasure. I've been waiting for approval of a new driver in the database for a week now. Does it usually take this long for approval? Edu


8 Sep 2019, 07:20

There’s no place for Dimensions

Am I missing something? There’s no place to input box dimensions it only shows material thickness and material displacement. I also bought the pro version. Please Help, confused.


22 Aug 2019, 10:34


Trying to understand the graphs. Is there a legend?


13 Aug 2019, 06:03

Outside or inside measurements

Hi. want to ask when i add my numbers for the box is that inside or outside ? looking at rockfords calculator 34cm X 98cm X 25cm gives me 61,41 Liters 18mm MDF will i use. when i put in 980mm with. 340mm hight then i gives me 248mm depth Total Volume: 82,4