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Fully Broken in Standard DD 3512G-D4 T/S Parameters- My Tests


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don't take these as exact, still need to do more testing

Fs 31Hz

Le 6.76mH (measured at 2.5kHz)
Re 7.8ohm
Vas 40L
Qms 3.13
Qes 0.83
Qts 0.66 - seems too high need to look more into it
Cms 0.0736mm/N (calculated)
Xmax ~30mm (Xmech is 40mm from DD's statement "Suspension Travel 80mm" so Xmax is a guess from this and measured motor depth is 80mm, the coil hangs out of the gap by around 20mm)
Sd 618sqcm (calculated)
BL 25.6Tm (calculated)
Mms 358g (From the Pasmag review of the 3512G-D2 same cone materials and structure should give the same moving mass number, other parameters are different due to different voice coil winding and their test is with it not fully broken in shown by the Fs at 43Hz)

Re, Qms, Qes, Qts, Vas, Fs achieved by the method from Elliott Sound Products

http://sound.westhost.com/tsp.htm

Just some information to those who feel they can take off with it

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