Are the SEAS ODINS really that bad?

hasaudio.co.nz · 10th September 2009, 08:10 AM

Ive been looking at building a ref speaker for each speaker brand i supply. Odin for seas was the plan but ive seen a few bad reports regarding it. Has any1 here had any experience with these speakers? And what are your thoughts?

StigErik · 10th September 2009, 08:31 AM

Take a look at Seas' own measurement of the speaker (the MK 3 version).
http://www.seas.no/images/stories/di...easurement.pdf

It should sound a bit too midrange-focused, dont you think?

The main problem with this kit is that the XO dont correct the baffle step quite enough. The series coil should be 1.5 mH, not 1.0 mH, but then the speaker would get 2-3 dB lower sensivity. I think they traded sensitivity for an incorrect tonal balance.

nicoch58 · 10th September 2009, 09:01 AM

better look at Troel Gravensen ,very fine xover

hasaudio.co.nz · 10th September 2009, 09:08 AM

Has troels designed a xo for this speaker?

jerome69 · 10th September 2009, 09:21 AM

Short Thor build

Use this crossover instead.

nicoch58 · 10th September 2009, 10:50 AM

troels have a ton of seas project , better then Odin that is quite old ..

taste of music ....from troels:

"Before going into details, a little on the sound. To my ears the sound from these nextel coated drivers fall between the SEAS Prestige CA and EXCEL magnesium drivers. This may suggest sound quality inferior to the magnesium cones. It isn't. It's as good as the magnesium cones, only different due to improved responsiveness. I don't think they beat the magnesium cones in terms of neutrality, but these Nextel coated paper cones provide a very neutral, yet vivid sound. The best of both worlds? Well, only your ears can tell."

hope this helps

gainphile · 11:52 AM

With massive metal resonance at 5kHz and xo frequency of 2.2khz, the harmonics distortion of W18 would be massive. Such driver should be used under 1kHz or perhaps 1.5kHz with very steep xo and deep notch (active xo).

Perhaps this is what the builders are hearing.

btw. I have Seas L21 with nearly similiar peak, only about 400Hz difference, which is at 4.6kHz compared to W18.

I cross it actively at 1.5kHz and put in very deep, high-Q notch (18db) and the peaks are still there. It is audible.

jerome69 · 10th September 2009, 11:55 AM

We should temperate our judgments.
Magnesium driver have the best midrange I have heard... I never heard a such better cone. But you should remove the resonance cone carefully.

nicoch58 · 10th September 2009, 05:53 PM

X-ray speakers , but musical ??

when xover the tw so low in critial range with hi order ,the best midrange are lost HIMO

jerome69 · 10th September 2009, 09:08 PM

You will be very surprised

10th September 2009, 08:10 AM	#1
hasaudio.co.nz diyAudio Member Join Date: Aug 2009	Are the SEAS ODINS really that bad? Ive been looking at building a ref speaker for each speaker brand i supply. Odin for seas was the plan but ive seen a few bad reports regarding it. Has any1 here had any experience with these speakers? And what are your thoughts? __________________ Hasaudio Speaker Components

10th September 2009, 09:08 AM	#4
hasaudio.co.nz diyAudio Member Join Date: Aug 2009	Has troels designed a xo for this speaker? __________________ Hasaudio Speaker Components

10th September 2009, 11:47 AM	#7
gainphile diyAudio Member Join Date: Dec 2007 Location: Melbourne the sunny city!	With massive metal resonance at 5kHz and xo frequency of 2.2khz, the harmonics distortion of W18 would be massive. Such driver should be used under 1kHz or perhaps 1.5kHz with very steep xo and deep notch (active xo). Perhaps this is what the builders are hearing. btw. I have Seas L21 with nearly similiar peak, only about 400Hz difference, which is at 4.6kHz compared to W18. I cross it actively at 1.5kHz and put in very deep, high-Q notch (18db) and the peaks are still there. It is audible. __________________ http://gainphile.blogspot.com Last edited by gainphile; 10th September 2009 at 11:52 AM.

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10th September 2009, 08:31 AM	#2
StigErik diyAudio Member Join Date: Feb 2008	Take a look at Seas' own measurement of the speaker (the MK 3 version). http://www.seas.no/images/stories/di...easurement.pdf It should sound a bit too midrange-focused, dont you think? The main problem with this kit is that the XO dont correct the baffle step quite enough. The series coil should be 1.5 mH, not 1.0 mH, but then the speaker would get 2-3 dB lower sensivity. I think they traded sensitivity for an incorrect tonal balance.

10th September 2009, 09:01 AM	#3
nicoch58 diyAudio Member Join Date: Oct 2004	better look at Troel Gravensen ,very fine xover

10th September 2009, 09:21 AM	#5
jerome69 diyAudio Member Join Date: Feb 2008 Location: Lyon	Short Thor build Use this crossover instead.

10th September 2009, 10:50 AM	#6
nicoch58 diyAudio Member Join Date: Oct 2004	troels have a ton of seas project , better then Odin that is quite old .. taste of music ....from troels: "Before going into details, a little on the sound. To my ears the sound from these nextel coated drivers fall between the SEAS Prestige CA and EXCEL magnesium drivers. This may suggest sound quality inferior to the magnesium cones. It isn't. It's as good as the magnesium cones, only different due to improved responsiveness. I don't think they beat the magnesium cones in terms of neutrality, but these Nextel coated paper cones provide a very neutral, yet vivid sound. The best of both worlds? Well, only your ears can tell." hope this helps

10th September 2009, 11:55 AM	#8
jerome69 diyAudio Member Join Date: Feb 2008 Location: Lyon	We should temperate our judgments. Magnesium driver have the best midrange I have heard... I never heard a such better cone. But you should remove the resonance cone carefully.

10th September 2009, 05:53 PM	#9
nicoch58 diyAudio Member Join Date: Oct 2004	X-ray speakers , but musical ?? when xover the tw so low in critial range with hi order ,the best midrange are lost HIMO

10th September 2009, 09:08 PM	#10
jerome69 diyAudio Member Join Date: Feb 2008 Location: Lyon	You will be very surprised

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