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Bass management or LFE low-pass filtering is required if using a sub

In the "document", page 45, I see

"Only modest amounts of signal from specific instruments with significant low frequency content — kick drum, tympani, bass guitar, acoustic bass, low organ or piano notes — should be routed to the LFE, and in all instances those instruments should also be printed full range to the desired main channels as well."

That means that if you don't bass manage your main channels, and you use the LFE channel for the sub without matching the sub low-pass filter to the mains, you are hearing some excessive bass, between the low-pass frequency used in the LFE and your main channel's natural frequency cut-off. If engineers mix anything below 80Hz into the LFE, and floorstanders reproduce down to 35Hz, that is a lot of excessive bass between those frequencies.

Christine, I assume you have set the low-pass filter on the sub to match the speakers, then I agree, bass management is not needed.

My point was, with bass management, we could liberate the LFE channel, and make sacd 6.0 (and 6.1 with bass management at home). That would make the position of speakers a little easier, because covering 300deg with just 2 speakers is difficult.


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