I used to own the 5140's, and had them powered by Linn AV5105 amps.
I start red with one per pair, then two then three then went to the aktiv configuration with the powered internal crossovers and removal of the passive crossover.....
Bi amping did make an improvement, and tri-amping did too, but not close to the level going aktiv did but it was not worth it in my mind. Plus the headache of running all those wires and IC's made it a huge PITA.
After I finally amassed all the parts one the used market (except the Aktiv cards (BTW you need two of these per amp with the 5105's!) cables etc I moved the system three times in several years. What a nightmare!! FWIW I had a fully aktiv Lin AV51 system with two pairs of the AV5140's for fronts and surrounds, an AV5140 also acktiv and the AV5150 sub, and an AV5103 controller (that thing sounded really nice but was also a PITA to deal with!)
Add to that the fun of trouble shooting any problem, which is now eight times more difficult due to the number of variables....... The final time I moved them I moved them to a larger room and they didn't have the output it needed so sold the entire rig and started from scratch and am much happier I did!
Die hard Linnies will find that blasphemous but when you get into a system like that you get stuck into one brand and limit your flexibility as you need to use Linn amps, well you COULD do an external crossover before the amps and Linn does make something like this but they do not recommend them....
Hope that helps!
I start red with one per pair, then two then three then went to the aktiv configuration with the powered internal crossovers and removal of the passive crossover.....
Bi amping did make an improvement, and tri-amping did too, but not close to the level going aktiv did but it was not worth it in my mind. Plus the headache of running all those wires and IC's made it a huge PITA.
After I finally amassed all the parts one the used market (except the Aktiv cards (BTW you need two of these per amp with the 5105's!) cables etc I moved the system three times in several years. What a nightmare!! FWIW I had a fully aktiv Lin AV51 system with two pairs of the AV5140's for fronts and surrounds, an AV5140 also acktiv and the AV5150 sub, and an AV5103 controller (that thing sounded really nice but was also a PITA to deal with!)
Add to that the fun of trouble shooting any problem, which is now eight times more difficult due to the number of variables....... The final time I moved them I moved them to a larger room and they didn't have the output it needed so sold the entire rig and started from scratch and am much happier I did!
Die hard Linnies will find that blasphemous but when you get into a system like that you get stuck into one brand and limit your flexibility as you need to use Linn amps, well you COULD do an external crossover before the amps and Linn does make something like this but they do not recommend them....
Hope that helps!