"Eiron" wrote in message
...
Before I get out my oscilloscope and check, does anyone know how a typical
AV amp crossover behaves?
That is, when the main speakers are set to small, the sub-out has a
low-pass filter
and the other outputs have high-pass filters, but what order and type?
If implemented digitally, I would expect a high order filter.
I wouldn't know if they all use the same chips and algorithms.


Your oscilloscope won't tell you much, unless you use it as part of a
swept-frequency analyser.

The filters are implemented inside DSPs, but ~I wouldn't expect high-order
filters to avoid audible problems in the region of the cross-over.

It would be worth looking at the manufacturers specs to see if they state
the type and order of the cross-over filters.

David.