First question is, why would you want to go with a set of passive speakers in this day and age?
Do you currently have a setup with amp/passive speakers with some extra amp power to spare (like enough to power the speakers to the max and have some left)?
Contrary to popular belief having an amp that is under powered is more dangerous for your speakers than a (slightly) overpowered amp.
If you don’t, you might want to consider switching to active speakers for the new ones.
Also, if you plan to use the new speakers in conjunction with your current setup, I would recommend getting the same speakers you already have. All speakers sound different and it doesn’t make sense to have two different brands. You can of course bring one of your own speakers to a store and A/B it with other speakers to see which match your current setup the best.
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