Hi, I have an old pair of Celestion Ditton 15 cabinets with ABRs in. I would like to realign then with a new pair of drive units however I can't find any specificatiosn for the ABR.
Does anyone know how to measure these specifications.
The real problem measurements are;
Vas
Qms
I can calculate Sd easly
I can estimate Xmax
I can even get an estimate of Fs by firing a sinewave signal at the ABR and searching for max displacement.
I just don't know how to even start on the other two measurements.
Regards,
Andrew
Does anyone know how to measure these specifications.
The real problem measurements are;
Vas
Qms
I can calculate Sd easly
I can estimate Xmax
I can even get an estimate of Fs by firing a sinewave signal at the ABR and searching for max displacement.
I just don't know how to even start on the other two measurements.
Regards,
Andrew