The 950 doesn’t have any pre out/main in connections.
Because it's not a receiver, it's a pre-amp/processor so it only has pre outs.
Does anyone know another way to accomplish this configuration?
What's wrong with just hooking them up via speaker wires? Instead of complicating things unnecessarily with Y connectors and what-not, you might first want to try the simple method. The crossovers that are specifically designed into these speakers will do a better job of routing various frequencies to the proper drivers that some external crossover (like the one built into the 950).
Also, what about the LFE output. Will any of this info be lost without running a dedicated sub via the sub output. All the bass will be in the front three channels.
This depends on how flexible the 950 is. In the set-up menu there
may be a provision to configure for a speaker set-up that doesn't include a subwoofer; in which case that information should get folded into the front L/R channels. We'll know for sure once we get a peek at the 950's instruction manual.
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Sanjay