M7B DATS Cabinet Impedance Sweeps (Pics)

MrGeology

Cabinets Have Different Caps.
Cabinet A Crossover.


Cabinet B Crossover.


3 sample drivers:
Original 1983 M7B driver
Wuhan VC Repaired 1983 M7B driver
1980 Silver Basket MW 6500 with original coil.

For each drivers standalone T/S parameters, see my post here:
https://forum.polkaudio.com/discussion/198508/mw6500-dats-t-s-parameters-revised-pics

Apologies, forgot to save impedance sweep of 1980 driver in cabinet B so it is missing.

2 pics Cabinet A Impedance Sweep, (3 drivers, overlay).
2 pics Cabinet B Impedance Sweep, (2 drivers, overlay).
3 pics Cabinet A Vs Cabinet B Impedance Sweep, (original 7B driver, overlay).
1 pic Cabinet A (original driver) Vs Cabinet B (Wuhan Coil) (Impedance Sweep overlay).

Cabinet A Impedance Sweep, (3 drivers, overlay).



Cabinet B Impedance Sweep, (2 drivers, overlay).



Cabinet A Vs Cabinet B Impedance Sweep, (original 7B driver, overlay).




Cabinet A (original driver) Vs Cabinet B (Wuhan Coil) (Impedance Sweep overlay).