Lowther DX65 Response?

Tenson · 19th May 2009, 11:32 AM

Hi,

Does anyone have a frequency response, and importantly an off-axis response for the new DX65? I can't find one on the net.

Cheers!

Nelson Pass · 19th May 2009, 09:13 PM

I have a pair on the way, courtesy of Jon ver Halen of Lowther
America, and I will be happy to post a curve after they arrive. I
don't do off-axis curves, but its a reasonable assumption that it
will be very similar to the DX55 and its brothers, as the cone
structure appears to be the same.

Tenson · 19th May 2009, 09:48 PM

Hi Nelson,

Funnily enough I was just reading your PDF about the Kleinhorn project.

It would be good if you can share your findings of the DX65.

Actually I have been looking for some off-axis plots of the DX55 as like you I thought it would be similar. I can't find any for that either though. Can you point me to some if you know of them, please?

Cheers

P.S. I see in a picture you have some ribbon tweeters with your KleinHorns, how did you decide at what point to roll them in?

Nelson Pass · 19th May 2009, 10:44 PM

Quote:

Originally posted by Tenson
I see in a picture you have some ribbon tweeters with your KleinHorns, how did you decide at what point to roll them in?

I usually use something like 6 dB/oct at 10 KHz, unless there's a problem.

tinitus · 20th May 2009, 02:09 AM

Quote:

Originally posted by Nelson Pass

I don't do off-axis curves, but its a reasonable assumption that it
will be very similar to the DX55 and its brothers, as the cone
structure appears to be the same.

Could be the light, but surround looks different on the picture on Lowther site
Fs is 89hz, opposed to 80hz on DX55

I have been looking at it fore a while, so I hope to hear more about it

Tenson, Im not sure response curves on these drivers makes much sense
You may have to listen to judge anything

Jon Ver Halen · 20th May 2009, 03:29 AM

Don't believe Nelson. They are not on the way. I am REALLY enjoying them, and it may take a week or two before I am willing to ship them on. Matter of fact, they are playing in the background as I type.

Although I have not measured them, they have the same basic response of the DX55 - i.e. a rising response above 500 hz that needs taming to sound their best. Once properly equalized they are *very* nice.

BHTX · 20th May 2009, 03:47 AM

..haha.

Jon Ver Halen · 23rd May 2009, 06:49 PM

DX65's are packed on will be shipped Tuesday. Because of the short week, Nelson will probably not get them till June 1st.

I miss them already.

19th May 2009, 11:32 AM	#1
Tenson diyAudio Member Join Date: Feb 2006 Location: Kent	Lowther DX65 Response? Hi, Does anyone have a frequency response, and importantly an off-axis response for the new DX65? I can't find one on the net. Cheers!

20th May 2009, 03:29 AM	#6
Jon Ver Halen diyAudio Member Join Date: Aug 2004 Location: Chicago area	DX65 Don't believe Nelson. They are not on the way. I am REALLY enjoying them, and it may take a week or two before I am willing to ship them on. Matter of fact, they are playing in the background as I type. Although I have not measured them, they have the same basic response of the DX55 - i.e. a rising response above 500 hz that needs taming to sound their best. Once properly equalized they are very nice. __________________ Jon Ver Halen Lowther-America

23rd May 2009, 06:49 PM	#8
Jon Ver Halen diyAudio Member Join Date: Aug 2004 Location: Chicago area	Now they are on the way! DX65's are packed on will be shipped Tuesday. Because of the short week, Nelson will probably not get them till June 1st. I miss them already. __________________ Jon Ver Halen Lowther-America

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19th May 2009, 09:13 PM	#2
Nelson Pass The one and only Join Date: Mar 2001	I have a pair on the way, courtesy of Jon ver Halen of Lowther America, and I will be happy to post a curve after they arrive. I don't do off-axis curves, but its a reasonable assumption that it will be very similar to the DX55 and its brothers, as the cone structure appears to be the same.

19th May 2009, 09:48 PM	#3
Tenson diyAudio Member Join Date: Feb 2006 Location: Kent	Hi Nelson, Funnily enough I was just reading your PDF about the Kleinhorn project. It would be good if you can share your findings of the DX65. Actually I have been looking for some off-axis plots of the DX55 as like you I thought it would be similar. I can't find any for that either though. Can you point me to some if you know of them, please? Cheers P.S. I see in a picture you have some ribbon tweeters with your KleinHorns, how did you decide at what point to roll them in?

20th May 2009, 03:47 AM	#7
BHTX diyAudio Member Join Date: Feb 2006	..haha.

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