Alternatives to Eros MKI/MKII xover

andy2 · 3rd May 2006, 06:52 PM

After trying out both version, I found that the sound was too bright for long term listening. Also, the xover was too low (at 1750hz) which results in harshness in the female voice.

After exchanging email with another diy fellow Ramon from the Netherlands, we came with a different version of xover that is much more musical but just as much details.

Also, the xover uses much smaller caps on both the tweeter and woofer which definitely helps the sounds. The xover point is now at 2.5Khz. Minimum impedance is 3.9 ohm. Both tweeter and woofer are connected with possitive polarity.

I would appreciate if someone could try out and let me know.

andy2 · 16th June 2006, 04:57 PM

Please ignore the previous attachement. It has a drawing error.
Here is the latest.

andy2 · 15th October 2006, 06:12 AM

Latest xover. The one on the left is the one I am using. Still a bit forward in the upper mid. Reduce C1 or increase R1 a little to tame the forwardness.

andy2 · 23rd May 2007, 03:46 AM

Here's the absolute final xover:

I had to add a notch filter to suppress tweeter rise at around 5kHz. The notch fitler does not appear to affect the dynamic. Overall the sound is very balance. Finally I can just sit back and enjoy the music.

Feel free to play around with C21, R21, R22 if you either like it to be a little bit more forward or laid back.

L22 of 23.9uh has to be custom made.

By the way, if anyone in SoCal interested, I wouldn't mind invite you over for a second opinion.

andy2 · 23rd May 2007, 04:32 AM

Associate equipment:

1. Jolida JD100 CD Player
2. Conrad Johnson 17LS preamp
3. AES Six Pacs tube amp.
4. DIY speaker cables from Alpha Core inductor.

Kinnja · 23rd May 2007, 11:01 PM

Which Eros are you refering to?

I know of these two:

http://www.speakerbuilder.net/web_fi...ct/erosmk2.htm

http://www.innersound.net/erosover.html

andy2 · 24th May 2007, 03:42 AM

Quote:

Originally posted by Kinnja
Which Eros are you refering to?

I know of these two:

http://www.speakerbuilder.net/web_fi...ct/erosmk2.htm

http://www.innersound.net/erosover.html

I am refering to the first one.

Kinnja · 24th May 2007, 10:30 PM

That is the answer I was hoping for. I've been thinking about building a pair. If I eventually do, I can do some experimenting with the different crossovers.

andy2 · 25th May 2007, 03:07 AM

Quote:

Originally posted by Kinnja
That is the answer I was hoping for. I've been thinking about building a pair. If I eventually do, I can do some experimenting with the different crossovers.

Before deciding what to build, check out these two sites:

http://www.troelsgravesen.dk/Diy_Lou...r_Projects.htm

http://www.humblehomemadehifi.com/

ttan98 · 25th May 2007, 04:26 AM

try active x-over.

you need a Behringer, digital x-over(or analog version cheaper but not so versatile) and another amp. Total cost slightly more expensive than passive(*). This compo is very versatile x-over freq. can be tuned to suit. You even program notch or bump to suit.

I am doing this now not with eros though.

* with passive you make a mistake can be expensive, you cannot return components. good quality components are very expensive.

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23rd May 2007, 03:46 AM	#4
andy2 diyAudio Member Join Date: Nov 2004 Location: Los Angeles	Here's the absolute final xover: I had to add a notch filter to suppress tweeter rise at around 5kHz. The notch fitler does not appear to affect the dynamic. Overall the sound is very balance. Finally I can just sit back and enjoy the music. Feel free to play around with C21, R21, R22 if you either like it to be a little bit more forward or laid back. L22 of 23.9uh has to be custom made. By the way, if anyone in SoCal interested, I wouldn't mind invite you over for a second opinion.

23rd May 2007, 04:32 AM	#5
andy2 diyAudio Member Join Date: Nov 2004 Location: Los Angeles	Associate equipment: 1. Jolida JD100 CD Player 2. Conrad Johnson 17LS preamp 3. AES Six Pacs tube amp. 4. DIY speaker cables from Alpha Core inductor.

23rd May 2007, 11:01 PM	#6
Kinnja diyAudio Member Join Date: Jan 2007	Which Eros are you refering to? I know of these two: http://www.speakerbuilder.net/web_fi...ct/erosmk2.htm http://www.innersound.net/erosover.html

24th May 2007, 10:30 PM	#8
Kinnja diyAudio Member Join Date: Jan 2007	That is the answer I was hoping for. I've been thinking about building a pair. If I eventually do, I can do some experimenting with the different crossovers.

25th May 2007, 04:26 AM	#10
ttan98 diyAudio Member Join Date: Apr 2006 Location: Melb	try active x-over. you need a Behringer, digital x-over(or analog version cheaper but not so versatile) and another amp. Total cost slightly more expensive than passive(). This compo is very versatile x-over freq. can be tuned to suit. You even program notch or bump to suit. I am doing this now not with eros though. with passive you make a mistake can be expensive, you cannot return components. good quality components are very expensive.

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