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Old 28th June 2012, 02:48 AM   #11
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Originally Posted by mondogenerator View Post
There is something I like about the Ribbons which I cant put my finger on.
Once you hear a good ribbon, dome tweeters sound "rough".

My Heil is crossed at 2K (18dB) to my Audax HM130C0. Wonderful combination.
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Old 28th June 2012, 06:21 AM   #12
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thanks Simon, the reasons you mention are the reasoning behind me taking a listening break until i have a flat crossover.

The domes sound ok really, but it sounds more of a case of what the ribbons lack in their reproduction, rather than the reverse.

Its this that makes me look at the domes colouration, rather than the THD of the ribbon.

I have seen waterfalls and THD measures posted on techtalk i think, below about 2.5k the THD rises, but above 3k its below -40dB, the waterfall shows a spike in the same region, so i plan to cross higher than this.
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Old 28th June 2012, 06:28 AM   #13
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Thanks Michael, those do look nice. Similar box size to my AP130ZO, although I dont think there is much special in the AP range motor, no shorting ring, although that doesnt make them awful. The HM range are likely a lot better.
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Old 28th June 2012, 01:35 PM   #14
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Default a small aside

the front horn WG is detachable, or appears to be. Removing it may be my next test, just out of curiosity.
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Old 28th June 2012, 02:05 PM   #15
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Originally Posted by mondogenerator View Post
the front horn WG is detachable, or appears to be. Removing it may be my next test, just out of curiosity.
You'd need to re-measure and completely revise the crossover to account for the loss of waveguide "boost"....
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Old 28th June 2012, 02:11 PM   #16
DrDyna is offline DrDyna  United States
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Quote:
Originally Posted by Michael Chua View Post
Once you hear a good ribbon, dome tweeters sound "rough".

My Heil is crossed at 2K (18dB) to my Audax HM130C0. Wonderful combination.
The Heil isn't really a ribbon though, is it? I was always under the impression that ribbons moved in-out, the Heil kinda does a "squeeze to center".
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Old 28th June 2012, 02:48 PM   #17
ODougbo is offline ODougbo  United States
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Default Dynaudio D-28

In some circles, these are considered worlds best. I only used them once in a box in the back of a Chevy Blazer, they did sound great.

Never understand why they stop making great speakers!
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Old 28th June 2012, 03:45 PM   #18
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The Heil isn't really a ribbon though, is it? I was always under the impression that ribbons moved in-out, the Heil kinda does a "squeeze to center".
Thanks for the clarification. You're right, the Heil AMT are not ribbons. I always thought they were. Now I have an excuse to buy the Fountek NeoCD3.0. Would be interesting to compare the NeoCD3 with the Heil.

Wiki has some information on Heil AMT
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Old 28th June 2012, 03:59 PM   #19
DrDyna is offline DrDyna  United States
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Originally Posted by Michael Chua View Post
Thanks for the clarification. You're right, the Heil AMT are not ribbons. I always thought they were. Now I have an excuse to buy the Fountek NeoCD3.0. Would be interesting to compare the NeoCD3 with the Heil.

Wiki has some information on Heil AMT
Oh, I love the heil, especially the big one. Friend of mine that owned a stereo shop in upstate ny had a set of speakers that he used as his reference that had one of the older foam surround peerless 8" and the big heil. I tried to talk him out of them a couple of times, but his response was always "Million dollars, you can have em."

One of these days I'll try to cook something up myself.
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Old 28th June 2012, 04:03 PM   #20
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yeah a heil is a motion transformer, which i THINK is like a magnetostat, except pleated, and attraction is between folds, rather than a pseudo ribbon magnetostat. All of these appeal to me, budget was important, so i chose the neoCD3.5H, versus the Mivoc and visaton magneto. A raal or heil would be good, i challenge you to find an example for 40 each, and ill buy. The pinching motion is another 'lever' of mechanical advantage, like the horn is to the 3.5h
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