BillFitzmaurice.info

Have you thought of a bandpass design? They get loud but have a thin frequency band Yes I know bandpass very well. I worked in a car stereo design and wood shop business for 6 years that designed nearly all bandpass we used either single or dual bandpass designs. We designed and built nearly all of...

So as a true horn not so great but check this configuration out that I just came across that does use a spiral, well many spirals, this was an award winning design for best sounding speaker. It's got me rethinking my 5.25 driver. hahaha! I'm kidding, I will still be moving forward with the vented ca...

A 6" can certainly hit 20Hz, but don't expect significant output. Because of the lack of surface area, it will have to have monster excursion to move enough air. The Tang Band 6" has quite a bit, and can do 40Hz, but is still quite volume limited. Also, how do you plan to build a spiral l...

After laying out the spiral configuration, the smallest I could make it was about 14x14x14. Still this is way to big for my dock especially considering this is a 5.25 inch woofer in there. I will not bother with even testing horn configurations at this small size. Bill is 110% correct with the T18 b...

Yes, I am trying to achieve SPL at least at 100db from about 40hz though to 150hz to make it worth my while to build another cabinet for this project. Something like the Anarchy tapped horn that is around 88db from 20hz through to 100hz is very similar to what I have built in the vented cabinet alre...

@Bill, thanks for the response. I know now not to try a smaller cube. I am thinking if the 18x19x13 T18 could work with a 6" driver I have, might be worth a try... @mr.lussier, it is going to be large but still portable. I have been challenged by a group at my work to make the loudest iPod dock...

Here is a zoom of the specs, a little easier to read...

I am building a custom iPod dock and I want it to be somewhat small but have some efficient loud bass that draws lower wattage. I was thinking since the Bill Fitzmaurice tuba subwoofers are so efficient maybe this could be done with a small driver in a cabinet about 12"x12"x12" approx...