BillFitzmaurice.info

Bruce Weldy wrote: ↑Tue Oct 10, 2023 9:56 am Nice job fitting it in there!

Cheers Bruce. Good to see you're out and about too!

Seth wrote: ↑Tue Oct 10, 2023 11:05 am Ahhh, that's cool Grant. Nice and clean mod. Well done. Noticeable change in sound?

Thanks Seth.
Change in sound? No idea, paint's still drying

Taking on board what Bill said in this thread earlier; I decided to revise this build some. I added 7" in depth to the cab. That takes the cab to an internal volume of roughly 7.5 cubic feet, or 1.8 to 1.9 cubic feet/driver. Adding 7 inches added 2.7 cubic feet, so as it was it was not even 1.5...

The main constraint here is the WAF. I already have a THTLP (30" width), and it looks good as a console table behind the sofa (also probably not the OPTIMAL place sonically, but passed the WAF, and passed it with flying colors! - see my build thread, there on my signature). I was allowed anoth...

I did think about the fact that the cabs are designed in such a way that hanging them just from the top board of the top cab isn't going to work on its own, so we added a bunch of screws from the side boards along with the metal brackets transferring a lot of the load to the sides to compensate. It...

Hey all! Been a long time lurker and I’ve finally decided to take the plunge into building my sound. The problem I have right now is that I can’t seem to wrap my head around amps, ohms and power ratings.

 Just when I think I’ve got it understood, I read a bit more from various forums and then I ha...

Oh! So Even with enameled wire the awg can be too heavy? Sure. That's why there is different recommendations in the plans for filters. No need to use a heavier AWG coil when you don't have to. Also, i've read that DCR should be less than 5% of driver impedance (?). When connecting 8 ohms in series ...

Seth wrote: ↑Mon Oct 02, 2023 10:04 pm

Grant Bunter wrote: ↑Mon Oct 02, 2023 9:53 pm https://www.greatguitareshop.com/sell-5 ... hragm.html

China telephone number. Interesting site. Have you used them before?

No.
I just saw the .com...

CarterKraft wrote: ↑Mon Oct 02, 2023 9:32 pm Since this is the old(er) version of the APT do you think it takes the same diaphragm?

I'll look for one, it would be nice to have the right driver in it.

I would think so...

You should be able to find a D25D diahpragm for the APT-80 for $10 + shipping.

Then you wouldn't have to reconfigure the settings...

...but i honestly would like to know how it behaves electronically when the insulation makes the wires so far from each other, compenssred with larger awg for DC-resistance when using, what i believe, longer wire. Hard to find many sources online so perhaps It's just stupid? Inductors store energy ...

IMO, coils should only be made with enameled wire, not household wire. Sell the wire you find as scrap to fund "proper" inductors. Values are crossover specific. As far as using flouro caps, you realise you can't just throw any value cap in there right? Values and type are crossover specif...

I'm totally cringing about the flying of the cabs.
It is not the way to do it.

Unfortunately, that overshadows what otherwise looks like an excellent build to me...

If the coil melted it creates a short and lowers the resistance value of the coil. Perhaps that's what occurred and your amplifier is limiting/protecting itself due to a really low impedance. Just a thought and another urging to check the DC resistance across the tweeter terminals. If it measures m...

Keryn O'Shea wrote: ↑Mon Sep 25, 2023 12:49 am Ah yes, l see now, very nice job man

+1

Tom Smit wrote: ↑Sun Sep 24, 2023 9:44 pm Here is the photo...

Tom, that looks fantastic!