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BMS vs Celestion |
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Cheekybox 
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Joined: 04 October 2014 Location: Smoke Status: Offline Points: 104 |
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 Topic: BMS vs CelestionPosted: 19 October 2020 at 1:53pm |
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I've got one of the large horns so im interested in the driver it was designed for. As i am using the 4590 on this horn i'd like to know how the celestion would compare. The b&c looks fine but i want to learn about one particular option rather than any alternative option.
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citizensc
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Joined: 16 October 2015 Location: Perth,Australia Status: Offline Points: 532 |
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Posted: 18 October 2020 at 1:54am |
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Out of curiosity is there any reason you are not considering the DCX464?
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Cheekybox
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Posted: 18 October 2020 at 1:20am |
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Thanks to everyone for posting.
Seems folks are unsure either because of the price, or, the fact no one has heard this driver. I am still intrigued to know whether the performance of the celestion justifies the high cost over the BMS. Hunt is on to try and find one to hear!
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BJtheDJ
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Joined: 28 November 2012 Location: Bristol Status: Offline Points: 886 |
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Posted: 17 October 2020 at 4:01pm |
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Blue Aran have them on order. http://www.bluearan.co.uk/index.php?id=BACME464 Cut n paste from that page: £507.76 £423.13 ex VAT
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A: A vegan son. B: An OnlyFans daughter |
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IanD
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Posted: 17 October 2020 at 3:07pm |
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Huge horn, huge price... Mind you, £950 for the horn is only the same as the driver -- so I don't know where this "half the price of the BMS" came from...
Edited by IanD - 17 October 2020 at 3:10pm |
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smitske96
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Posted: 17 October 2020 at 12:23pm |
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The B&C ME464 costs roughly the same as the DCX464, so that is not a cheap one either.
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citizensc
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Posted: 17 October 2020 at 10:32am |
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That's out of my price range for sure... who is that horn marketed to? I would never spend that kind of money on a horn flare as a DIY sound system guy. I would rather build something my self.
In other news B&C have released their new gigantic horn for the DCX464, no idea how much it costs but its plastic and its b&c so I can only assume its less than 1000 pounds. |
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snowflake
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Posted: 15 October 2020 at 4:47pm |
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a grand for the driver and a grand for the horn - yikes!
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Cheekybox
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Posted: 15 October 2020 at 3:00pm |
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Have you seen the horn this was designed for?
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snowflake
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Posted: 14 October 2020 at 11:41pm |
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compression drivers have been good enough for several decades that the limiting factor is the horn. no matter what they do in the driver exit it is still going through a throat that either loads the driver at low frequencies and distorts HF at high volume, or doesn't load at low frequencies and throws away the extra bandwidth the driver is capable of. |
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kipman725
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Posted: 14 October 2020 at 11:28pm |
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So to me this seems more an argument about horn design than compression driver design as your talking about the flare rate limitations required for low frequency loading? In the axi2050 the phase plug is at the throat unlike say an JBL 2461 where there is a section of horn incorporated into the driver before the throat. Obliviously the phase plug still has an internal horn expansion that would have a flare rate but I wonder if (as such drivers didn't exist in that time) that charts from Olson are predictive for such a driver? Personally I would like to see better data in general from compression driver manufacturers as its pretty difficult to make an educated choice from the limited data provided, at least something like this would be much better:
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snowflake
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Posted: 14 October 2020 at 6:44pm |
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the throat distortion is at the high frequencies. Looks pretty much exactly what my chart in Olson predicts. 10% distortion at 10*cutoff at 1 acoustic watt per cm2 of throat. Community recommends both drivers are used over three octaves. |
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citizensc wrote: