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Double 18" Reflex driver selection |
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Shortrope 
Young Croc 
Joined: 08 July 2013 Location: Ireland Status: Offline Points: 1232 |
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 Topic: Double 18" Reflex driver selectionPosted: 01 May 2016 at 6:31pm |
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What would folks driver recommendations be for a very high output double 18" Reflex box.
35 to 120hz.
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My Tinnitus is coming along nicely!!
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all bass
Old Croc 
Joined: 11 October 2012 Location: the Netherlands Status: Offline Points: 1855 |
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Posted: 01 May 2016 at 6:45pm |
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https://www.instagram.com/my_modular_journey/
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Shortrope
Young Croc
Joined: 08 July 2013 Location: Ireland Status: Offline Points: 1232 |
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Posted: 01 May 2016 at 6:50pm |
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My Tinnitus is coming along nicely!!
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Shortrope
Young Croc
Joined: 08 July 2013 Location: Ireland Status: Offline Points: 1232 |
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Posted: 01 May 2016 at 6:55pm |
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How do you reckon that would compare to a dual 21" with say an 18Sound 21NLW4000?
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My Tinnitus is coming along nicely!!
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Conanski
Old Croc
Joined: 26 January 2006 Location: Ottawa, Canada Status: Offline Points: 2545 |
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Posted: 01 May 2016 at 11:58pm |
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This.. http://www.bcspeakers.com/products/lf-driver/18-0/8/18sw115
Edited by Conanski - 02 May 2016 at 12:00am |
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ceharden
The 10,000 Points Club 
Joined: 05 June 2005 Location: Southampton Status: Offline Points: 11776 |
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Posted: 02 May 2016 at 1:12am |
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Based on the simulations I've done recently, the 18SW115 will go lower than a lot of other drivers in the right cab. However it loses out by at least a couple of dB for most of the operating range because it has such a heavy cone.
Current list of candidates for the designs I've done recently are: Fane Prime 18XS B&C 18TBX100 or NBX100 (very similar on paper other than weight) Beyma 18P1000Fe V2 18Sound 18LW1400 or 2400 Based on simulations with 170L per driver tuned to 38Hz, there is very little (within 1dB) to choose between them. |
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Grubbah
Old Croc
Joined: 14 July 2011 Location: Portsmouth Status: Offline Points: 2004 |
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Posted: 02 May 2016 at 1:02pm |
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B&C 18TBX100 +1
Edited by Grubbah - 02 May 2016 at 1:03pm |
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t.geessounds
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Joined: 10 May 2010 Location: US... New york Status: Offline Points: 908 |
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Posted: 02 May 2016 at 4:46pm |
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18sound LW2400 +1
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MarjanM
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Posted: 02 May 2016 at 4:52pm |
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18tlw3000 :-)
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Marjan Milosevic
MM-Acoustics www.mm-acoustics.com https://www.facebook.com/pages/MM-Acoustics/608901282527713 |
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IanD
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Joined: 17 January 2009 Location: London Status: Offline Points: 400 |
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Posted: 02 May 2016 at 5:14pm |
No point looking at just the frequency response and sensitivity without also checking Xmax -- the BMS 18N862 has a lot more than any of the other drivers, but this is rather wasted unless you want to go below 30Hz. |
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ceharden
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Posted: 02 May 2016 at 10:53pm |
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All of the drivers I listed have very similar Xmax and will have very similar excursion curves in the same cabinet.
As you say, in most cases, excursion only really becomes a limiting factor if you're trying to maximise low extension. The 18SW115 also has massive excursion capability and power handling but it comes at the expense of sensitivity and probably transient response.
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corell
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Joined: 19 August 2013 Location: Berlin Status: Offline Points: 1161 |
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Posted: 03 May 2016 at 2:21am |
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18TLW3000 +1 if you want a 35Hz tuning.
If you want to tune a little higher, ~38-42Hz, 18NLW9000. |
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all bass wrote: