BillFitzmaurice.info

I read in another post (Ron K) that he sets a LPF at 14k & a 24db slope. OK, I realise that our hearing is starting to fall away up in these sort of frequencies (some more than others) but what are the technical reasons for a LPF? Is it to simply filter off frequencies that will not be missed in...

Thats a great help. I'm am quite happy with my decision to build T39, it was a matter best combintaion of size v's output v's cost at the time I started building... before 3012 was available. I just wanted to understand the limits of the design and the reasons why. One final thing that you could hel...

Help me to understand a couple of things...
"the T39 is a 45Hz horn, so no matter how many you stack together it won't run flat lower than that point" What in the design makes the T39 a 45 Hz horn?

And if one is to pushes lower than that there is dire results, correct? Why?

I am about to let loose my pair of T39 20" fitted with single BP102s. A number of members have mentioned running these to 38 v which I intend to limit at. However what high pass settings are recommended? I think from reading past posts, a V plated pair can pass at 40 Hz, while singles or a pair...

Hi folks. I am getting close to finishing my two T39 x 20" project. Thay have been a while in the making, but thats another story. Anyway, regarding routing the round over on the cabinet edges, specifically the horn opening. I read on the forums most use 3/8th inch or 1/4 inch radius which tran...

I'm about two weeks off finishing a pair of T39's so am starting to think about covering them. Yeah, I'm not sure about the carpet option, I suspect the good stuff isn't avaialble in NZ and at .50 exchange rate its gonna cost a bit getting it in from the states. I am in the auto industry so I will s...

Did you manage to find any other alternatives?

With a risk of hijacking the thread, does anyone know of any good sources of carpet suitable for cover a cabs in NZ?

Got it...thanks guys

Hi folks...I have been plugging away on my first build, 20 inch T39's. Its going OK, bit slower than what I wanted but learning the tricks of the trade as I go along. I have now got to the point where some of the braces go in. I am not using dados. Are there any tips on fastening and gluing? Do you ...

Thanks guys, I am on to it now.

Harley, I might be missing something here! What name are you under in the phone book?

..I live in Greenlane, ......I am intending to build a pair of T24's as a starter, to compliment a small PA I have. .....! I play at G.C.C. in Marewa Rd every now and again and live 5 mins from you in Mt Wellington! Thats pretty amazing... 800 m away, plus my daughter is performing there with the E...

Thanks for the info guys. I had heard Plyman advertising on radio & was going to check them out. By the way I should have introduced myself. I live in Greenlane, Auckland and spotted the filtzmaurice site while searching on the net one day. Have been watching the forums with interest for a while...

Hi guys. First time on the forum here. Question is aimed at Harley, whats a good supplier of good ply in the Auckland area neighbour?!