XT25TG35s

[Shim]

It looks like Mad blew through the half price deal they had on these and I know why
Just put them in with a pair of PL14s in 8 litre boxes, and don't even have the crossover done right for them,.......THEY ARE REALLY NICE!!

[Shim]

p.s.
does anyone know (since North doesn't sell dyi anymore) where to get the little speaker connects that fit the Vifa tweeters. Bought 4 ea. of everything Madisound had but they don't fit right

[tungsten]

Solder the wires!

I use a 4th order highpass at 3.3kHz, and they sound gorgeous. I may have a LP section for PL14 in the drawer somewhere.

[Shim]

I have a pair of PL25's I had to do that with, I was hoping there was a cleaner way

I would love to see that 14 x-over schematic just out of curiousity. I switched out a pair of PL24's and dropped these into a 3rd order @ 2500. Getting something strange at higher dbls. I think I may need to put the zobel back on the low pass. More than likely a hole new set of filters, I was originally going to use them with a pair of CA21REX. May still

I have been trying to get the FRD frequency combiner to give me something for the boxes I need to use if I put the XT's with the PL14's. I'm not sure I have everything set up the way it wants to see things

[Emiel]

Follow the link below for a crossover for a PL14 and a XT25

http://www.audiocomponents.nl/speake...g/prem11_3.htm

[tungsten]

sorry, my PL crossover seems to be lost. The dutch XT25 crossover is not good enough - the XT25 MUST have an impedance notch LCR to flatten the resonance pak, when used with a 2nd order filter. I use 4th order and have skipped it.

[tungsten]

Zaph Audio has a serious bid on a XT25 crossover:
http://www.zaphaudio.com/ZD5.html

and Troels Gravesen:
http://www.troelsgravesen.dk/EllamXT.htm

Bear in mind that the XT25tg35 that you and I use is the version WITH magnetic oil. Results may therefore differ, and the impedance peak may be lower.

resulting response from "my" filter:

[Shim]

It's funny you should post, I've been working to wrap these puppies up so I can think of bigger and better things.
What I have isn't nearly as complicated as Zaph's, more like the Ellams, and I'm sure don't sound as good especially with those Scan Speaks.

I have an 8.5 liter box that has to fit in under a 12" high bookcase so the shape and size has been a problem from the beginning.
Using the design tools from FRC and accounting for the baffle I was able to refine my 3rd order approach and am pretty close to where I want the sound to be. i.e., do I keep the 7 or drop to a 6 ohm on the attenuater?

<link removed>

I started out targeting a 2500Hz crossover but it obviously had other ideas, so I guess these will go lower than the previous versions.

You don't get to see the crossovers yet, they are really ugly right now LOL, but I followed the directions for the "star" pattern recommended at North Creek