Good thought, and I look forward to reviewing your findings.But aren't those notches just because of the time-misalignment of the drivers? Surely the woofer needs delaying.
Let's see: wavelength at 6kHz is a tad over 2 inches, or just over 1" for 180 degree phase shift... and how far behind the cone is the D220i diaphragm? I bet it's a little over an inch. I'll try and measure how well delay cleans this up after I assemble my 10cx/220ti vocal wedges in a few weeks...
The high-Q notches were there with just the HF driver running in my early measurements. Similar anomalies appear in Brandon's 8CX study. The broader dip? Maybe....
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Speakers at BAF 09
here is a pic of the speakers outside on the deck at BAF. They were running on a little battery chip amp for about an hour (I forget the chip amp owner's name). Then they were powered by my friend Ho Ngo's SE 845 amps.
They made sweet tones throughout the day!
-Kent
here is a pic of the speakers outside on the deck at BAF. They were running on a little battery chip amp for about an hour (I forget the chip amp owner's name). Then they were powered by my friend Ho Ngo's SE 845 amps.
They made sweet tones throughout the day!
-Kent
Attachments
They are little Sansui tweeters, or were. I added them to the cabinets to help the University full range drivers that were originally installed in the cabinets. They all blew out on their first trip to Burning Man in 08. We cranked up the volume too much one day!
The tweet housings are made from various lamp, gas line and toilet seat parts. Form follows function.
The tweet housings are made from various lamp, gas line and toilet seat parts. Form follows function.
Very nice indeed. 'You also make little, matching coats for all your equipment?' (phrase by another Hi-Fi/McIntosh enthusiast, not mine)The tweet housings are made from various lamp, gas line and toilet seat parts. Form follows function.
Yep, they'd look great on the Nautilus. Excellent work BTW and I love the look.Great looking "NEMO"-speakers!!!
Arne K
Don't know if they're still available or not, but I found ten of the Beta 10CX and CD's for $300:
EMINENCE SPEAKERS BETA 10CX
I'm considering the 8CX with D220ti. Does anyone know if Zilch's crossover for the 10CX would apply to the 8CX without modification? Here are the 8CX specs:
Eminence Beta 8CX coaxial speaker. The Eminence Beta 8CX is a 8" 8 ohm coaxial speaker.
Also, is his crossover mentioned above, going to be the final one that was designed or was it ever tweaked further?
EMINENCE SPEAKERS BETA 10CX
I'm considering the 8CX with D220ti. Does anyone know if Zilch's crossover for the 10CX would apply to the 8CX without modification? Here are the 8CX specs:
Eminence Beta 8CX coaxial speaker. The Eminence Beta 8CX is a 8" 8 ohm coaxial speaker.
Also, is his crossover mentioned above, going to be the final one that was designed or was it ever tweaked further?
Been a while since I visited this old thread! Copper speakers are still well; they will be making their 4th trip to BRC in 2 months. No problems so far.
@CZ- I don't know. A little would change, maybe; but Zilch would be the person to ask. Send him a PM! We did a little tweaking on the x-over in the copper speakers. IIRC, it was to get the levels of the 2 drivers closer.
@inductor- nope- never made covers for them! They sit in my garage most of the year. Once I get the amp built for them, I'll offer them up for sound re-enforcement for garden parties!
@CZ- I don't know. A little would change, maybe; but Zilch would be the person to ask. Send him a PM! We did a little tweaking on the x-over in the copper speakers. IIRC, it was to get the levels of the 2 drivers closer.
@inductor- nope- never made covers for them! They sit in my garage most of the year. Once I get the amp built for them, I'll offer them up for sound re-enforcement for garden parties!
Here is one of many threads about him:
More Data, Less Wank. A Eulogy for Zilch. - AudioKarma.org Home Audio Stereo Discussion Forums
More Data, Less Wank. A Eulogy for Zilch. - AudioKarma.org Home Audio Stereo Discussion Forums
Oh, no! That is very sad.... He was a very helpful chap with my speakers..I even made an 'econowave' logo for him, to thank him for his time.
I heard from him about a year ago, then he never followed up with emails. I guess he was rather ill.
So sad... Thanks CZ for the heads up.
-Kent
I heard from him about a year ago, then he never followed up with emails. I guess he was rather ill.
So sad... Thanks CZ for the heads up.
-Kent
Speakers still alive
Just a post to say thank you to all for the help getting these speakers dialed in- I just wish I could say thanks again to Zilch; a most helpful person. May he be enjoying speaker building wherever he is. His thoughts and designs live on in us and our speakers.
The speakers went again to Burning Man this year, but didn't get much time out of our truck- I was too busy. The 10CX and D220Ti drivers still perform fine- never had any problems despite the dust and heat. I am retiring from that event; moving on. The speakers occaisionally come to events & parties and they did a wedding a few years ago.
So, if you ever need some sound re-enforcement speakers and you're in the SF bay area, drop me a line.
Thank you Zilch
Just a post to say thank you to all for the help getting these speakers dialed in- I just wish I could say thanks again to Zilch; a most helpful person. May he be enjoying speaker building wherever he is. His thoughts and designs live on in us and our speakers.
The speakers went again to Burning Man this year, but didn't get much time out of our truck- I was too busy. The 10CX and D220Ti drivers still perform fine- never had any problems despite the dust and heat. I am retiring from that event; moving on. The speakers occaisionally come to events & parties and they did a wedding a few years ago.
So, if you ever need some sound re-enforcement speakers and you're in the SF bay area, drop me a line.
Thank you Zilch
Attachments
So, if you ever need some sound re-enforcement speakers and you're in the SF bay area, drop me a line.
Thank you Zilch
This thread was very helpful to me a while back. Your speaker build is way-cool.
Are you selling the speakers or just letting folks know they can rent them?
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