[Roy W. Rising]

"a-l" wrote:

ive been noticing recently that there are some situations that i like a
limited freq range... dumbing it down seems to be working

Scott Dorsey's and Mike Rivers' answers pretty well cover the turf.

Let me add an interesting "rule of thumb" for limited frequency range:
Multiplying the LF and HF -3dB numbers should come out to about 600,000.
For example 30Hz to 20KHz = 600,000. In the days of 5KHz Telco loops, we
would use a 120Hz high-pass. The result? A natural sounding bass-treble
balance. Small box radios and TVs that can't produce much below 100Hz
benefit from a 6KHz low pass.

--
~ Roy
"If you notice the sound, it's wrong!"