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Martin Audio F2B |
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Ibex 
Young Croc 
Joined: 27 May 2009 Status: Offline Points: 1013 |
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 Posted: 19 April 2010 at 10:40pm |
...see comparison of different drivers for the 215 MKIII, bloody similar for the F2B. Note: PD drivers doesn't fit into a nonmodified F2B!!! PD154 would be the best choice, in this case you would have to increase the depth of the rear chamber to make the driver fit. Only RCF L15-554K/L15P200AK and JBL 2226H fit in without modification. |
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bitzo
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Joined: 20 November 2007 Location: Italy Status: Offline Points: 977 |
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Posted: 21 April 2010 at 10:05am |
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Ibex how do you get the input for hornresp? Just a 215mk3 with 6" shorter lenght?
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Ibex
Young Croc
Joined: 27 May 2009 Status: Offline Points: 1013 |
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Posted: 21 April 2010 at 1:09pm |
No mate, I just hired one and measured it... BTW, there is nothing about 6" shorter length. |
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bitzo
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Posted: 21 April 2010 at 2:36pm |
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6" just seen on f2 system datasheet. False clue from Martin.
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Ibex
Young Croc
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Posted: 21 April 2010 at 2:54pm |
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...I can't comprehend what they have writen in the datasheet.
Edited by Ibex - 21 April 2010 at 2:56pm |
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bitzo
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Posted: 21 April 2010 at 3:03pm |
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lol. your method is better at all.
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snowflake
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Joined: 29 December 2004 Location: Bristol Status: Offline Points: 3122 |
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Posted: 03 January 2015 at 5:01pm |
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RCF LF15X401 should fit in the F2B
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djeddie
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Joined: 26 April 2004 Location: Bristol Status: Offline Points: 4125 |
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Posted: 03 January 2015 at 7:17pm |
Well it's the same depth, so physically it should go in. |
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Chas n Dave : it's like Drum and Bass but with beards. E=mc² ±3dB
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snowflake
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Joined: 29 December 2004 Location: Bristol Status: Offline Points: 3122 |
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Posted: 03 January 2015 at 9:17pm |
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sims 12dB more max output than the ATC driver
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djeddie
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Joined: 26 April 2004 Location: Bristol Status: Offline Points: 4125 |
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Posted: 04 January 2015 at 12:48am |
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That doesn't sound right to me! One or two dB maybe, but 12dB???
I've got the F2B's that Robbo mentioned earlier, (the copies with a bigger rear chamber), they're currently loaded with an EV driver and they're stupidly sensitive. There's hardly any noticable difference to the ATC's as I've tried them side by side, so 12dB on that would be defying the laws of physics. And no, I'm not going to make a Star Trek joke about you 'can'ne change the laws of physics, Jim'. That would be highly illogical. Edited by djeddie - 04 January 2015 at 12:48am |
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Chas n Dave : it's like Drum and Bass but with beards. E=mc² ±3dB
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KidCreole
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Joined: 06 November 2013 Location: London (East) Status: Offline Points: 3600 |
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Posted: 04 January 2015 at 12:51am |
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Mykey Wattco
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corell
Young Croc
Joined: 19 August 2013 Location: Berlin Status: Offline Points: 1161 |
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Posted: 04 January 2015 at 1:13am |
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+12db would mean 4 times the cone displacement. so if the ATC has xmax around 3mm, this could be true...
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Heathrow_B_line wrote: