Here's a simple rule of thumb: If you want good recordings you need good monitors. Powered or passive, these monitors have the chops to take your sound to the top.
Powered Studio Monitors - They'll save you space (and probably some bucks) with their built-in amplification.
Unpowered Studio Monitors -They might be passive but they sure aren't wimpy.
Studio Monitor Accessories - Mounts, stands, isolation pads, carrying bags and more.