When somewhere decent engineering documentation appears, about a different speaker transducer's impedance, efficiency, frequency plot, resonance and Q, accustic impedance, as well as equations that calculate how that will work together with the existing enclosure/cabinet regarding tuning and efficiency and frequency plot, plus some real life evaluations on the results using such modified speaker assembly documented by a spectrum analyzer (and I wouldn't even insist in an anechoic chamber for such tests), then we definitely would evaluate and adapt our GTA04 amp circuitry and the pad footprints for speaker contacts and maybe we would even try to source those obviously better speakers and set up a proper procedure to rework the cabinets/enclosures during Neo900 production, to make the new speakers fit.

With all that missing, there's little we can do.

Alternative: you tell us what additional contact pads (exact location, size/shape) you need and we simply place them there, according to your specifications, if possible. Placing contact pads is cheap, evaluating what exactly to do is expensive in units of person-days as well as possibly lab hours.


/j