^ for my future reference...so why not actives are a populer choice in home audio....
thanks
sorry for little off topic
Passives exist because people want variety. They don't want to be stuck to one sound, know what I mean?
For example I know I'd hate to be stuck to class ab amps in actives. I'd want to experiment with tubes, I'd want class A, I'd want SET, I'd want to experiment with class D. I'd want to hear a different implementation of class AB.
It's the same reason why power and pres exist seperately and not run over by integrated.
Active monitor bookshelves are just less headache, you go with a decent sounding pair and don't look back. It's for those people who dont want to concern themselves with what they're missing or how they can improve the sound. They just want something decent without worrying about cables, amplifiers, dacs etc and it fits the bill.
"passives are ageing and will kick the bucket"
Not true. There are thousands of studios which use high end passives.
Off course why not, by All means they are active, near field monitors are yet an another name for actives.
The efficiency of actives are far better than that of passive's
Not true. Near field refers to a set of characteristics of the speakers adhere to. Not it's power source. There are many many near field monitors which are passive. And similarly many actives which are not near field.
The efficiency of actives are far better than that of passive's
Efficiency in what way exactly? Sensitivity? impedance drops? An active is nothing but a passive woofer connected to an amplifier within the speaker. Stating efficiency of actives are better than passives is nothing but generalization.
And just on another note, more efficiency (Sensitivity) if that's what you meant, means shorter voice coils, shorter voice coils means less excursion, less excursion means poor SPL. And as the cones get smaller and smaller unless it has good excursion it's going to lack severely in lower frequencies. But that does not mean you give it very high excursion either, the longer the voice coil the more calculations have to be done and sensitivity is sacrified. The smaller the enclosure the more air it will need to push to simulate lows. People need to audition and hear which type they like. Bookshelf monitors lean more towards towards 90db and lower to have longer voice coils for smaller woofers to displace enough air to simulate what a larger cone travelling shorter distance does. , studio active monitor bookshelf sensitivities vary as much as passive bookshelves.
High sensitivity speakers are augmented with back loaded or transmission lines to compensate for lack of excursion, as a result to get proper bass out of them their enclosures become huge and these large enclosures with rear loaded horns / transmission lines indirectly increase efficiency.
No such thing as "efficiency of actives are far better than that of passive's" and even if it were true the sound would suck. Look at harbeths implementaion of certain BBC broadcasting monitors, some of them are 83db sensitivity, that's more than twice as less efficient.
suggest/pray your Jamos to be paired to a multi-changeover switch connected to an A Class, an AB, a D, a T Class, pure tube amps ... and your current source. Bet, no one would have ever owned such ..... 
