Turbomax Reflex - It begins... |
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Timebomb
Old Croc Joined: 11 October 2004 Location: Lancaster Status: Offline Points: 2716 |
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You can set WinISD to display excursion as peak or RMS excursion, id set it to peak as thats your worst case and you measure xmax as a peak value anyway. Like Ceharden says i wouldn't worry if it gos over a tad, are you inputting real xmax? (coil length-gap height/2) or adding 1/4 of the gap height?, or using a different meathod? If your using real xmax you should be fine with that sim of the fane.
You can do a rough impedance plot with 2 multi meters and a sine tone generator/ pc program / rogs test cd. Run a sine signal into the cab, keep voltage from the amp constant and mesure current drawn by the speaker, then repeat at difference frequencys, calcluate the impedance at a frequency (voltage/current), then plot it on a graph and you have an impedance plot to compare to the simmed one on WinISD. Thats the best way of measureing the tuning of a cab, and how the port is being lengthnd. |
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James Secker facebook.com/soundgearuk
James@soundgear.co.uk www.soundgear.co.uk |
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Elliot Thompson
Old Croc Joined: 02 April 2004 Location: United States Status: Online Points: 5175 |
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The dip is power compression. That usually occurs when you are feeding the driver too much power and/or, the cabinet is tuned too low. You cannot estimate the TS Parameters either. Try to find someone that has the proper numbers. Best Regards, Edited by Elliot Thompson - 13 July 2009 at 10:02pm |
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Elliot Thompson
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app
Old Croc Joined: 26 December 2013 Location: Finland Status: Offline Points: 2435 |
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I just realised this Ive simmed the jobst lbb118 in winisd and was a bit worried if I can give them full 500watts. Had the cone excursion at peak and it was 1mm over xmax,changed it to rms and its well under the line at 500w. |
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"what!?"
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luton_soundman
Old Croc Joined: 03 August 2010 Location: Bedfordshire Status: Offline Points: 4539 |
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Sorry to revive an old thread... but how many others have gone reflex for tmax 1000i? I have a pair of original 1000i on fane chassis, normally i would put them in scoops but ive got too many other drivers for that. So, thinking about a pair of reflex for them. Would be used on sub i should add, not upper bass/kick/low mid as some call it. I van look at the specs etc but always good listening to peoples real world experiences too.
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Sound Hire/Sales new/used equipment.
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