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Cornwall IV

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On 1/14/2020 at 6:06 PM, Edgar said:

 

And the CW4 was noticeably better in the midrange, at least to my ears.

Yes, indeed. A much more relevant observation than creating exaggerated BS about flared ports, which is just a tiny tweak in comparison to the new horn and driver.

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On 4/11/2020 at 1:41 PM, Edgar said:

The frequency response curve shown on this link doesn’t worry me, even the apparent crossover related dips, I’ve seen highly thought of speakers with far worse. The distortion curves seem worrisome, especially for a Klipsch Heritage speaker. Are the distortion curves as bad as they look? Could something have been amiss with the speakers, or perhaps in the measuring technique?  

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15 minutes ago, Kevin S said:

The frequency response curve shown on this link doesn’t worry me, even the apparent crossover related dips, I’ve seen highly thought of speakers with far worse. The distortion curves seem worrisome, especially for a Klipsch Heritage speaker. Are the distortion curves as bad as they look? Could something have been amiss with the speakers, or perhaps in the measuring technique?  

 

I was the responder who mentioned that it might be due to a defective component or driver. Distortion that remains a constant percentage of the output level is unusual -- usually percent distortion increases with level.

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On 4/12/2020 at 10:28 AM, ClaudeJ1 said:

I have no doubt that a Flared Port is superior from an airflow standpoint. I used flared ports in both my Super Heresy 1.0 and Super Heresy 2.0 Modifications, so DUH!

 

What surprises me is the "much ado about next to nothing" aspect of all the hoopla concerning flared vs non-flared porting in general.  The performance differential as compared to box volume, port volume, port depth, and driver parameters, crossover balance, in TOTAL have 100 times greater effect audibly and measurably than whether or not there's a flare.

 

I was just trying to keep all of that in perspective by pointing out that the COSMETIC difference was far greater than any other aspect of performance parameters by quoting PWK's famous "dime's worth of difference" comment.

Not just s flared poet. The flare does make a very significant difference. Our measurements and study have proven that. I think mr K said that tractor flared ports were about 13.5 cents difference. So have you heard the speaker?  

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23 hours ago, Edgar said:

 

I was the responder who mentioned that it might be due to a defective component or driver. Distortion that remains a constant percentage of the output level is unusual -- usually percent distortion increases with level.

Hmmmm. Doesn’t look like our data.

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1 minute ago, Chief bonehead said:

Hmmmm. Doesn’t look like our data.

 

I suspected as much. Something just doesn't look right in the StereoPlay data.

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Posted (edited)

Dear All,


I am looking for a suitable tube amplifier for my new Cornwall IV. Therefore I would like to know the impedance curve of the Cornish IV. Could someone help me with that?

 

Greetings, Bartelomeos

Edited by Bartelomeos

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7 hours ago, Chief bonehead said:

Not just s flared poet. The flare does make a very significant difference. Our measurements and study have proven that. I think mr K said that tractor flared ports were about 13.5 cents difference. So have you heard the speaker?  

Well, then I guess the extra 3.5 pennies should put me over the edge. I'm looking forward to hearing it. I have owned a several cornwalls of different years and looking forward to hearing the IV. I'm sure that you spent a whole bunch of time on that one, probably more than the Heresy IV. I'm really glad to see that you got "turned loose" on the Heritage line, as it were, since I think it really needed updating to modern standards of performance.

 

"The life so short, the craft so long to learn"............................Geoffrey Chaucer

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14 minutes ago, Randyh said:

Claude did  you find out if the midrange driver of the CW 4  is 16 ohms or 8 ohms   -tx

 

I have no idea. I'd have to own a pair or know someone who does and who'd let me look.

 

But you could always ask Roy as I don't think the midrange impedance matters that much,  since it would just mean different component values to maintain the same topology and performance.

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3 hours ago, mustang_flht said:

Cornwall IV speaker review by Steve Huff 👍

 

I think he liked them!

 

For me, the outstanding features were dynamics and midrange timbre. 

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Woke up this morning to find  this is the front driveway, special delivery from Hope, Arkansas. Who doesn't need a little Hope is this day and age?.  KCIV's and  KFIII's,  in Black Ash  and Ebony,  respectively.   I will be doing a  Heresy IV comparison, even though I know the answer already. 

IMG_6867.jpg

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23 minutes ago, Pete Mote said:

Woke up this morning to find  this is the front driveway, special delivery from Hope, Arkansas. Who doesn't need a little Hope is this day and age?.  KCIV's and  KFIII's,  in Black Ash  and Ebony,  respectively.   I will be doing a  Heresy IV comparison, even though I know the answer already. 

IMG_6867.jpg

I wake up every morning hoping to find speakers like these sitting in my driveway!

And I don't even have a driveway!

I would say that you are starting to have too many speakers, but that't just nonsense talk around here.

Enjoy!

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28 minutes ago, MookieStl said:

I wake up every morning hoping to find speakers like these sitting in my driveway!

And I don't even have a driveway!

I would say that you are starting to have too many speakers, but that't just nonsense talk around here.

Enjoy!

If this is wrong then I don't ever want to be right!   3 pairs of Scala's,  Corn III's California style,  Corn 4's, Heresy 4's, Forte 3's  and a silly R-28PF for kicks.  I've definitely got the  Klipsch-19  in a strong way.  Stay thirsty my friends.

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1 hour ago, Pete Mote said:

If this is wrong then I don't ever want to be right!   3 pairs of Scala's,  Corn III's California style,  Corn 4's, Heresy 4's, Forte 3's  and a silly R-28PF for kicks.  I've definitely got the  Klipsch-19  in a strong way.  Stay thirsty my friends.

I'd make furn of you, but I have 2 pair of La Scala's, 2 pair of Belle's, 2 pair of Heresy's, RB61's and a few others scattered around.

 

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2 hours ago, MookieStl said:

I'd make furn of you, but I have 2 pair of La Scala's, 2 pair of Belle's, 2 pair of Heresy's, RB61's and a few others scattered around.

 

Next on the platter is a pair of Jube's! Then I can RIP.

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19 hours ago, MookieStl said:

I wake up every morning hoping to find speakers like these sitting in my driveway!

And I don't even have a driveway!

I would say that you are starting to have too many speakers, but that't just nonsense talk around here.

Enjoy!

 

19 hours ago, MookieStl said:
20 hours ago, Pete Mote said:

Woke up this morning to find  this is the front driveway, special delivery from Hope, Arkansas. Who doesn't need a little Hope is this day and age?.  KCIV's and  KFIII's,  in Black Ash  and Ebony,  respectively.   I will be doing a  Heresy IV comparison, even though I know the answer already. 

IMG_6867.jpg

I wake up every morning hoping to find speakers like these sitting in my driveway!

And I don't even have a driveway!

I would say that you are starting to have too many speakers, but that't just nonsense talk around here.

Enjoy!

That is just terrible.  Just terrible it wasn't my driveway.  😁

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On 4/20/2020 at 12:28 PM, Pete Mote said:

Woke up this morning to find  this is the front driveway, special delivery from Hope, Arkansas. Who doesn't need a little Hope is this day and age?.  KCIV's and  KFIII's,  in Black Ash  and Ebony,  respectively.   I will be doing a  Heresy IV comparison, even though I know the answer already. 

IMG_6867.jpg

 

I guess it's not just any neighborhood you can do that in.  (Wake up to find that stuff still in the driveway.)

 

At first I thought that was couple of guitar cases leaning against the speakers, but thought they looked a little blocky.  Turning my phone and looking closer revealed they aren't blocky at all; they're bricky...

 

I look forward to a full report.

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