In bi or multi-amping, whether stereo or mono think of each as a seperate amp. A stereo has 2 amp, mono 1, and of course dual mono also 2.
Use a 'Y' splitter (if your Pre does not have two Outputs) from one preamp IC to two amp Iutputs. Then one amp Out spker cable to the mid/tweeter, and the other to the woofer. They are interchangable. One amp to each.
I use 4 60w amps per side: one to each of 2) 12" woofer drivers (seperately); one to a pair of 8" mids wired in series, and the 4th to the tweeter.
But it is a 2-channel active EQ/XO system. That is, the XO has 2 Outs per side: one for woofers, the other for the main panels. But I still use 'Y' splitters to seperate the woofer drivers, and tweeter from the mids on the main panels.
BTW the only value in bi-amping passive XO speakers over bi-wiring, is if you need more power to the drivers. Otherwise it is just an expense accomplishing really nothing.
But if one amp is underrated for the spkr mfgr recommened power range, and you have the extra amp and choose not to replace them with a single amp of sufficent power, note that the Gain needs to be the same on both amps. Otherwise you disrupt the integration of Tweeter/mids and woofers by essentially changing volume level between them. That would be a serious net loss of performance of the system.
Use a 'Y' splitter (if your Pre does not have two Outputs) from one preamp IC to two amp Iutputs. Then one amp Out spker cable to the mid/tweeter, and the other to the woofer. They are interchangable. One amp to each.
I use 4 60w amps per side: one to each of 2) 12" woofer drivers (seperately); one to a pair of 8" mids wired in series, and the 4th to the tweeter.
But it is a 2-channel active EQ/XO system. That is, the XO has 2 Outs per side: one for woofers, the other for the main panels. But I still use 'Y' splitters to seperate the woofer drivers, and tweeter from the mids on the main panels.
BTW the only value in bi-amping passive XO speakers over bi-wiring, is if you need more power to the drivers. Otherwise it is just an expense accomplishing really nothing.
But if one amp is underrated for the spkr mfgr recommened power range, and you have the extra amp and choose not to replace them with a single amp of sufficent power, note that the Gain needs to be the same on both amps. Otherwise you disrupt the integration of Tweeter/mids and woofers by essentially changing volume level between them. That would be a serious net loss of performance of the system.