Hi,
I am trying very hard to measure the TS parameters and specially the QTs and VAS of my pair of Altec 604 D.
I am slowly getting familiar with LIMP(ARTA) and understand that i have to enter 3 values:
1.The resistance which in this case is 11.0 Hz for both speakers(The high freq Re are respectively 8.1 and 8.5 ).
2.The membrane diameter:The user's manual indicates that one should take the diameter of the cone plus 1/3 of the surround.Two questions here:
-Is it 1/3 on each side or 1/3 in total?
-Since this is a general recommendation for driver,does it apply as well for a co-axial or is there a correction to be applied when measuring the diameter of a co-ax.
3.Added mass :I have tried to add masses to the back side of the cones but they dont stick long enough to perform the measure till the end.Can i use small magnets without affecting the results of the measures?
Thanks for your help in this meticulous exercise.
Regards,
Charly.