Quote:
brucek wrote:
 But if your receiver employs standard bass management, irregardless of the mode, if the mains speakers are selected as small (and they should be), then you will not have the same amplitude all the way from 16-160Hz. The crossover setting in the receiver (i.e. 80Hz) slowly reduces the output to the sub as the frequency increases and also slowly reduces the output to the mains as the frequency decreases. This is standard bass management. |
The front speakers are set to small in all modes. The oscilloscope was connected to the subcable (the sub was not connected because we measured the output from the receiver) and in stereo-mode it was flat while in surround-mode it was a house curve.
I can't set the crossover. It is done by the receiver (a pretty old one) so I can only set the speakers to small/large and bass to sub, main og both. The crossover might be 80Hz but I don't know for sure.
Quote:
brucek wrote:
A house curve is applied to the subs response by boosting the lower frequencies to result in a target like the following: This target adds 5dB extra from 80Hz down to 30Hz on top of the normal target. Attachment 1066 |
Don't you mean app. 60Hz? There is more than 5db between 80Hz and 30Hz.
Quote:
brucek wrote:
Ensure that in all modes in your receiver, that you have your speakers set to small and not large (which defeats bass management for that speaker).....
brucek |
It is done
.