I have a image dynamics id 12 v4 250 rms i want to put it in a 4.50 cubic feet port tuned to 20.5 hz for just home theater use but i know this is a large box for it so power handling should go down. I have linux so i cant use windows programs to figure this out. I would appreciate help...

I am building my first sealed box 2cu.ft for a tidal audio 12" sub. I am trying to find out how much power it will be able to take before reaching Xmax at low frequencies, ie. 18hz. This will help me figure out my max output for flat response after equalization. Can anyone help me with how I can...

This is no particular driver; its just an example. Lets say i had a driver that had a xmax of 25mm but was only maxing it out at 15mm at around 30hz with the power available on hand. Would i be getting enough from this driver? Is it advisable to match power to driver to get the driver closer...

Hello, It's been forever since I've been here! Well, I'm back and this time I'm getting serious with my sub designs. I went to the swap-meet (flea market) and picked up some more subs. I have a Phoenix Gold XMax 15" sub and a few others for cheap. I'm trying to get the sub to play to it's Fs...

Well I have 2 of 4 audiopulse epic 10's right now and I am planning to power them with a Behringer EP4000. I have a minor question, since I am not going to use a highpass filter on them, will the speakers exceed their xmax/xmech when it goes into the infrasonic range? Here's a graph showing...

I use 4 of these passive radiators in my Bang and Olufsen RL 60 re-design in place of their failed ABRs for a great modification with excellent bass reproduction. They work in other applications as well, especially desktop speakers for computers and Ipod docks with amp/speaker combos needing...

I have a pair of drivers (CSS Trio8) In their specs, they do not have an Xmax parameter, but instead have two related parameters, "Linear coil travel" and "Maximum coil travel" Is there a way of determining the Xmax based on these or other parameters? The above parameters have the following...

Hello all, I have what is probably a very basic question, but one that I don't know the answer to. I have an Infinity Kappa Perfect 12 DVQ sub. Unfortunately I only have the BASH 300 (parts express) powering it. With the DVQ I am only running 150 watts RMS to the woofer. It actually sounds...

It seems that xmax results in greater overall SPL volume and also lower notes. But from what I can tell efficiency is impacted in that more excursion requires more power. Can anyone clear this up?

I think I've done similar threads recently...but here it is again maybe? I am looking for 30mm+ Xmax, sub-20Hz Fs, and I guess I don't have a magic number for inductance, and I prefer XBL^2. Same as but not Tumult and Maelstrom-X. Tumults no longer made, plan to get Maelstrom when dual 2...