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Multi-Way Conventional loudspeakers with crossovers

Any Dynaudio Gemini owners ?
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Old 18th September 2002, 10:13 AM   #1
H o m e r is offline H o m e r
diyAudio Member
Join Date: Sep 2002
Location: France
Wink Any Dynaudio Gemini owners ?

Hi guys,

First of all, sorry for my english, i'm french

I 've got a DIY Dynaudio Gemini pair with 15w75 woofers and D260 tweeter and the original Dynaudio crossover (-6db).

I'm searching to improve the gemini's crossover : do you know any better solution ?

I 've been told of the Dennis Murphy's second order Xover and the BESL fourth order crossover (not very cheap) .

What else ?

And what about serie's crossovers for the geminis ?

By the way, could you describe the amplifier and source associated with your geminis ?

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Old 24th September 2002, 01:22 PM   #2
verhagen is offline verhagen
diyAudio Member
Join Date: Sep 2002
Location: uk
How about replaing the passive xo with an active one?

I now have 8 15w75 to be used in an active setup.
Let's stay in touch!

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Old 24th September 2002, 03:31 PM   #3
boessenkool is offline boessenkool
diyAudio Member
Join Date: Nov 2001
I do have a Dynaudio Nuance setup (in my case a Esotec D260 with a 17w-75xl06).

I have built a JLH 10W amplifier with four amplifiers in one housing. I'm almost finished with this, apart from a slight humming problem caused by the transformers. But I think I can solve this.

Last weekend I modified my loudspeakers, I took the filter outside the cabinet and placed a biwiring terminal in the cabinet.
Still not bi-amping right now, soon to come.

I do not think that the passive filters can be changed for the better, apart from more expensive components perhaps. The time delay circuit for the tweeter seems to be a perhaps weak part of the circuit.

My idea is to go active and right now I'm in the phase of gaining knowledge and good ideas.

My thoughts right now:
adjustable 1st order but in front of the amplifers
perhaps a buffer
don't know what to do with the time delay.

Luuk Boessenkool
The Netherlands

(Sony CDP XA-5-ES cd player)
(Thorens TD 147 Jubilee with a ADC VLM mk II cartridge)
Interconnects and loudspeakercable CAT 7 network cable)
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Old 25th September 2002, 12:48 PM   #4
verhagen is offline verhagen
diyAudio Member
Join Date: Sep 2002
Location: uk
Default Dynaudio active xo?

Dear Boessenkool (sounds very dutch)

Many active xo's also have delays (see Rane ac series).
Cheap too!

Good luck!
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