I use to have the Magnepan 3.6R passively bi-amped with VTL 200 watt triode on top and Bryston 7BST on the bottom. Very nice, but it is recommended that you use similar if not exact amps when Bi-amping or go to active bi-amping to reduce amp synergy issues.
Nonetheless if you are talking about MMG's you CAN NOT Bi-amp these unless there are some significant mods done to the crossover. You'll need to move up the ladder to 1.6R's or older 2 series speakers to biamp.
Base on your past experiences with DB99's I suspect these will be used as a secondary system. Given that the 40 watts should work well for the MMG's especially of you use a small sub with them. You can make up your mind after that.
When you're ready to bi-amp there are several good(Sub $400) used SS amps to use including Rotel, Adcom or older Brystons.
That is my 2 cents.
Nonetheless if you are talking about MMG's you CAN NOT Bi-amp these unless there are some significant mods done to the crossover. You'll need to move up the ladder to 1.6R's or older 2 series speakers to biamp.
Base on your past experiences with DB99's I suspect these will be used as a secondary system. Given that the 40 watts should work well for the MMG's especially of you use a small sub with them. You can make up your mind after that.
When you're ready to bi-amp there are several good(Sub $400) used SS amps to use including Rotel, Adcom or older Brystons.
That is my 2 cents.