When you run the LFE out from your receiver, you can use the receiver's crossover (usually steeper, and better) and get a much better blend between all your speakers and the sub. I'll assume the designer has the subs well integrated with the rest of the speaker, but how it will jive with a 3rd sub and 3 other speakers in a 5.1 remains to be seen. These crossovers usually aren't that steep and therefore not as great for integrating with other speakers/subs. The only difference between the LFE and speaker level that's worth considering is the crossover.Ī full range signal needs to be fed to your speakers so the bass can be filtered by the built in sub's crossover. Here's a question though - if your speaker's subs operate off the speaker level, why not just run the LFE to the lone sub and let the speakers take care of themselves?
Any reciever worth its salt will handle this no problem. The voltage required is extremely low and the receiver is more than up to the task. My cousin did just that with his powered towers and subwoofer off a Sony receiver no less!!!ĭon't worry about the 2 levels of splitting.
After your receiver - you can then run the LFE line level to your two speakers' subs or add yet another splitter to do all 3 subs. If that's the case, they're no good to you here. Are they sub line outs or hi-pass line outs though? A lot of sub amps just pass the signal after the crossover.