Bi Amping Kappa 9's with the Infinity RS45 Crossover

[cdfac]

Afaik, there is little or no headroom gain when you're going through the passive crossovers.

The speaker crossover input is set up to supply the same signal to the crossover sections when the jumpers are in place to run the speaker conventionally. That means the sensitivities etc are all matched/balanced to see the same voltage signal to both sections/inputs of the crossover.

So, when the jumpers are removed, the same level of voltage signal should be applied to the individual inputs to the passive crossover. This is necessary to keep the signal levels matched up between the lows and the mid/high, or wherever the crossover split is.

In such a case, if you put a smaller amp on the mid/highs, it will clip before the amp on the woofers (or vice versa if the smaller amp would happen to go on the woofers).

i think i agree with you. i was talking about active biamping in my post. if you only send the high frequencies to the top amp, it won't clip it as easily as if it was trying to amplify the entire range, regardless of whether the passive crossovers are still used or not. if you're trying to say that there is no headroom gain at all if you leave the passives in, then i disagree on principle (but i defer to other peoples' experience here since i have none personally).