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Bass Management effectiveness


dhayduk

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I'm still tweaking my new HT setup and did some playing around with the Large/Small settings. The only difference that I heard was less volume of lower frequency signals, but still some substantial output at 40Hz.

Here's what I did (KLF30 upfront, with Denon 5800, which apparently has a fixed 80Hz cross-over):

Speaker setup fronts:large (subwoofer on, but physically powered off). Run AVIA left front tones from 100Hz->20 Hz. I saw quite a bit of difference in SPL readings +/-15 dB across that range (room acoustics?). At 40-45 Hz, output was 85 dB.

Speaker setup fronts:small (subwoofer on, but physically powered off). Run AVIA left front tones from 100Hz->20 Hz. At 40-45 Hz, output had only dropped to 75 dB.

I guess I was expecting a more dramatic roll-off of the lower frequencies, no??

The reason for configuring the Denon w/sub on was to make the conditions as identical as possible - it wouldn't let you configure small fronts without a sub.

Thanks,

Darren

This message has been edited by dhayduk on 08-30-2001 at 10:26 AM

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