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Upgrade compression driver? |
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immortal 
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Joined: 07 January 2013 Location: Sheffield Status: Offline Points: 460 |
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 Topic: Upgrade compression driver?Posted: 22 June 2022 at 10:00am |
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I currently have a unity horn with a 1.4" P-Audio BMD740. It sounds amazing but the compression driver starts distorting before the rest at high volume.
I was wondering how much of an improvement upgrading this would be? What drivers would you recommend? The rest of the drivers are faital pro 3" and 6"  |
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Cemetery Sounds
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Conanski
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Joined: 26 January 2006 Location: Canada Status: Offline Points: 2392 |
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Posted: 22 June 2022 at 3:35pm |
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Nice looking stack. What is the crossover frequency for those and what other processing is applied?
Edited by Conanski - 22 June 2022 at 3:36pm |
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immortal
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Posted: 22 June 2022 at 4:26pm |
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Thanks
 On the horn it's: 150 - 510 bass 510 - 1190 mid 1190+ top On the comp I have this EQ: 1.47khz -4db Q: 1.6 20khz +3db Q: 1.6
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immortal
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Posted: 22 June 2022 at 4:46pm |
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I found a post on DIYAudio where someone recorded quite a few compression drivers for comparison.
It sounds like the B&C DE82TN would definitely be a big upgrade so I might go for that. Has anyone used the DE980TN vs the DE82TN, would it be worth going for that although it is around twice the price? Edit: the DE980TN isn't in stock. Seems like they are newer and have a better high frequency response so I might go for the DE780TN
Edited by immortal - 22 June 2022 at 5:08pm |
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smitske96
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Joined: 16 February 2016 Location: The Netherlands Status: Offline Points: 1006 |
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Posted: 22 June 2022 at 7:03pm |
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The 780TN is comparable to the DE900 regarding its sound characteristic.
DE82TN is also 4.5kg compared to the 980's 2.3kg. If you want something similar to the 980, you could look at the 880. It is basically the same driver, however the 980 has a bigger magnet which gives it a higher efficiency. |
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immortal
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Posted: 23 June 2022 at 12:26am |
Thanks for the reply. I saw the 880 but it is also out of stock on bluearan and estimated 3-5 months. How is the 780TN compared to the DE82TN in regards to sound?
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snowflake
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Posted: 23 June 2022 at 7:59am |
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FaitalPro HF146 is what I put in my unity horns. Doesn't distort at hight volume like the P-Audio driver does - I did try them both. Sure the B&C drivers will be good but I think I chose the Fatial because it had a lower resonance frequency that didn't interfere with the crossover too badly.
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smitske96
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Posted: 23 June 2022 at 8:33am |
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I don't have any experience with the 82TN but do have with the DE800 (which is nice).
In my latest 12" BR +HF I also use de HF146, very nice driver but definitely different due to the diaphragm material.
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immortal
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Posted: 23 June 2022 at 9:33am |
That is a good shout, I have ordered a HF146. I think the recommended crossover frequency on the B&C would possibly be a bit high
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CastanedaZarate
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Joined: 24 June 2022 Status: Offline Points: 4 |
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Posted: 24 June 2022 at 3:08am |
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Thanks for sharing of such a vivid photo!
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immortal
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Posted: 24 June 2022 at 2:29pm |
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The driver has arrived today, I will hopefully fit it tomorrow.
Will see how it does and hopefully post some measurements of it
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Line Array
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Joined: 19 March 2022 Location: New Jersey, USA Status: Offline Points: 83 |
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Posted: 29 June 2022 at 5:39am |
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i don't believe in unity horns.
point sources are for low output systems. line arrays for high output systems. unity horns try to get high output from a point source. in my experience they are used primarily by amateurs who have been brainwashed on internet forums which ban anybody who criticizes Danley. if you aren't getting enough clean output from a point source learn the science of line arrays and get / build a line array. a point source appears to be good for up to about two 15" woofers. anything over that seems to require more than one compression driver.
Edited by Line Array - 29 June 2022 at 5:42am |
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best place on the internet >>>
https://dissidentsound.discoursehosting.net |
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smitske96 wrote: