Looking for LD25x impressions

FozzZ · 29th October 2012, 02:23 AM

As the title states, I'm looking for impressions on the LD25X tweeter. If anyone has heard the unit with and without the oversized wave guide, that would be great. Any other impressions would be great as well.

fastbike1 · 30th October 2012, 01:22 PM

Check the Parts Express Techtalk forum. A couple of well received builds. Curt Campbell has a design as well as Jeff Bagby.

Quote:

Originally Posted by FozzZ

As the title states, I'm looking for impressions on the LD25X tweeter. If anyone has heard the unit with and without the oversized wave guide, that would be great. Any other impressions would be great as well.

tuxedocivic · 30th October 2012, 08:04 PM

I've used it in a waveguide. I should say using it. The speakers are with Dave (Planet10) right now as he gives them a listen. Some changes are likely in order, but I think it's a very nice tweeter. Can cross really low with that waveguide. The thing is though, you have to cross low with that waveguide due to the size of the waveguide. Personally, it's the nicest sounding dome/waveguide I've listened to.

As for flush mounted, I never bothered to try. My personal opinion is that waveguides are the only way to go. I'd only bother with flush mounting if building a desktop 2-way and getting the drivers very close together was required. In this case, the LD25x would be quite good. I do think there are some other tweets that can take a bigger beating though that are similar. SB29 neo comes to mind. All this is based only on my measurements without listening to it flush.

planet10 · 30th October 2012, 10:30 PM

Quote:

Originally Posted by tuxedocivic

The speakers are with Dave (Planet10) right now as he gives them a listen. Some changes are likely in order, but I think it's a very nice tweeter.

One of the 1st changes is forme to get all the proper bits together for the XO Ryan designed so that we can determine how much the (over 10) alligator clips affected the performance -- could be a bit, i've not even had time to take pictures. But even with the XO spread out all over the floor the combo of the waveguided tweeter & the SDX7. The waveguide pushes the XO below the super critical range and allows for a very simple HP. It means you don't use the midbass where it is weakest. The tweeter ends up havig a closer dispersion characteristic to the midbass at the XO. It means that the spectrum is more evenly divided between the 2 drivers. It looks cool.

dave

FozzZ · 30th October 2012, 11:32 PM

In my case, the tweeter will be used with a Revelator 18w which is pretty good upto around 4k IMHO. Is the ability to play low this tweeters best attribute?

planet10 · 30th October 2012, 11:34 PM

Quote:

Originally Posted by FozzZ

Is the ability to play low this tweeters best attribute?

No.

dave

Henkjan · 31st October 2012, 01:18 PM

I'm using it in this design:
all CSS heavyweight compact 3way
had nothing but positive remarks from listeners, ranking it among the best dome tweeters around.

tuxedocivic · 31st October 2012, 04:51 PM

If using with a 7" up to 3 or 4k be prepaid for an unnatural dispersion pattern change right there unless using the waveguide. But then if using the WG you'll want to cross low because of CTC spacing.

CSS/XBL · 31st October 2012, 10:50 PM

Quote:

Originally Posted by planet10

No.

dave

Would you care to elaborate?

Thanks

planet10 · 31st October 2012, 10:53 PM

The LDX has many other attributes besides the waveguide that make it special. In nonWaveguide guise, a very small footprint, 3mm xMax, and low measured distortion (the latter for those that think that actually means anything)

dave

29th October 2012, 02:23 AM	#1
FozzZ diyAudio Member Join Date: Sep 2010	Looking for LD25x impressions As the title states, I'm looking for impressions on the LD25X tweeter. If anyone has heard the unit with and without the oversized wave guide, that would be great. Any other impressions would be great as well.

31st October 2012, 10:53 PM	#10
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 5	The LDX has many other attributes besides the waveguide that make it special. In nonWaveguide guise, a very small footprint, 3mm xMax, and low measured distortion (the latter for those that think that actually means anything) dave __________________ community sites t-linespeakers.org, frugal-horn.com, frugal-phile.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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30th October 2012, 08:04 PM	#3
tuxedocivic diyAudio Member Join Date: Jan 2011 Location: Ladysmith, BC	I've used it in a waveguide. I should say using it. The speakers are with Dave (Planet10) right now as he gives them a listen. Some changes are likely in order, but I think it's a very nice tweeter. Can cross really low with that waveguide. The thing is though, you have to cross low with that waveguide due to the size of the waveguide. Personally, it's the nicest sounding dome/waveguide I've listened to. As for flush mounted, I never bothered to try. My personal opinion is that waveguides are the only way to go. I'd only bother with flush mounting if building a desktop 2-way and getting the drivers very close together was required. In this case, the LD25x would be quite good. I do think there are some other tweets that can take a bigger beating though that are similar. SB29 neo comes to mind. All this is based only on my measurements without listening to it flush.

30th October 2012, 11:32 PM	#5
FozzZ diyAudio Member Join Date: Sep 2010	In my case, the tweeter will be used with a Revelator 18w which is pretty good upto around 4k IMHO. Is the ability to play low this tweeters best attribute?

31st October 2012, 01:18 PM	#7
Henkjan diyAudio Member Join Date: Jan 2006 Location: Berkel en Rodenrijs	I'm using it in this design: all CSS heavyweight compact 3way had nothing but positive remarks from listeners, ranking it among the best dome tweeters around.

31st October 2012, 04:51 PM	#8
tuxedocivic diyAudio Member Join Date: Jan 2011 Location: Ladysmith, BC	If using with a 7" up to 3 or 4k be prepaid for an unnatural dispersion pattern change right there unless using the waveguide. But then if using the WG you'll want to cross low because of CTC spacing.