General passive-line level filtering issues. (BD-Design)
Stephan,
You said:
"The biggest amplitude is in the bass - so if there occurs clipping it
will happen there first and produce harmonics. So I filter the main-amp at
the input, that it has to produce no bass."I'm not sure how your system is set up but for most of us we have speaker
level outputs into solid state bass amps. There is a passive filter
between the main amp and bass amps. So the bass that the main amp is
producing is into a very easy, high impedance load. The bass character is
heavily influenced by the main amp, but the main amp will never strain to
produce bass frequencies.It works very well unless there is too much low frequency noise in the
system, since any noise will be amplified by the main amp and bass amps.
Hi,
I agree with this. Additionally it may be good for understandings that the amplitute -like Stephan mentioned- from bass waves is not larger at all (opposed to the higher frequencies). For this matter IMO clipping won't be a problem, or no "additional" problem anyway. What would be true though, is that bass waves sustain longer, and therefore require more power in one go (large elco's etc.). But, power for what ? these waves are just passed through to the bass amp, and no large stiff diaphragm has to be sustained in any position etc. by the main amp. So indeed, there is no load.
Peter
Complete thread:
- General passive-line level filtering issues. - Bert, 2008-02-11, 11:11
- General passive-line level filtering issues. - madprofessor, 2008-02-11, 13:04
- General passive-line level filtering issues. - Bert, 2008-02-11, 13:21
- General passive-line level filtering issues. - madprofessor, 2008-02-11, 13:24
- General passive-line level filtering issues. - Cappy, 2008-02-11, 20:07
- General passive-line level filtering issues. - Cappy, 2008-02-12, 08:51
- General passive-line level filtering issues. - PeterSt., 2008-02-12, 09:53
- General passive-line level filtering issues. - Bert, 2008-02-12, 10:48
- General passive-line level filtering issues. - Bert, 2008-02-11, 13:21
- I'm glad to help any way I can. nt - samoore, 2008-02-11, 19:43
- Okay, the first one... - Bert, 2008-02-12, 10:30
- Okay, the first one... - madprofessor, 2008-02-12, 20:04
- Great, I look forward to trying it... - Cappy, 2008-02-12, 21:38
- Great, I look forward to trying it... - Bert, 2008-02-12, 22:18
- Thanks, One More Question - Cappy, 2008-02-12, 22:36
- Thanks, One More Question - Bert, 2008-02-13, 09:59
- Interesting - Cappy, 2008-02-13, 18:49
- Interesting - Bert, 2008-02-13, 19:54
- Interesting - Cappy, 2008-02-13, 18:49
- Thanks, One More Question - Bert, 2008-02-13, 09:59
- Meant copper foil - Cappy, 2008-02-13, 02:08
- Meant copper foil - Bert, 2008-02-13, 09:57
- Thanks, One More Question - Cappy, 2008-02-12, 22:36
- Great, I look forward to trying it... - Bert, 2008-02-12, 22:18
- U.S. Sources I Checked Out of the Inductors - Cappy, 2008-02-22, 06:59
- U.S. Sources I Checked Out of the Inductors - Bert, 2008-02-22, 07:14
- U.S. Sources I Checked Out of the Inductors - Cappy, 2008-02-22, 19:08
- LCR meters come relative cheap... - Bert, 2008-02-22, 19:39
- I just did... - Bert, 2008-02-22, 20:45
- LCR meters come relative cheap... - Bert, 2008-02-22, 19:39
- U.S. Sources I Checked Out of the Inductors - Cappy, 2008-02-22, 19:08
- U.S. Sources I Checked Out of the Inductors - Bert, 2008-02-22, 07:14
- General passive-line level filtering issues. - Tom Russell, 2008-02-18, 12:53
- General passive-line level filtering issues. - Bert, 2008-02-18, 21:35
- General passive-line level filtering issues. - madprofessor, 2008-02-11, 13:04