If you're planning on driving your Apogees, then you'd have to choose the 6900 which has Autoformer outputs and can drive loads down to 2 ohms. You would also have to make use of the built-in MM phonostage to justify the added expense of that feature. Ditto the equalizer. Ditto the power meters.
Keep in mind that a system's sonic signature or character is 85% a result of the amp/speaker combo. The preamp's main job is to direct traffic and otherwise keep QUIET! Therefore. I suggest auditioning various amps with your Slants using your existing preamp and phono preamp for now. Then slowly upgrade those as you can.
I don't dislike (the idea of) integrated amps, but unless you're contemplating a smaller unit for the bedroom or the office, you could be investing a lot of money in a component that would limit your flexibility, forcing you to throw the baby out with the bathwater in order to make a future upgrade.
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Keep in mind that a system's sonic signature or character is 85% a result of the amp/speaker combo. The preamp's main job is to direct traffic and otherwise keep QUIET! Therefore. I suggest auditioning various amps with your Slants using your existing preamp and phono preamp for now. Then slowly upgrade those as you can.
I don't dislike (the idea of) integrated amps, but unless you're contemplating a smaller unit for the bedroom or the office, you could be investing a lot of money in a component that would limit your flexibility, forcing you to throw the baby out with the bathwater in order to make a future upgrade.
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