speaker / sub ?
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charles 1973
Super Member
It depends on your sub. Many people (Including myself until recently) think if we use the speaker in and out jacks to feed the main speakers that a high pass filter cuts off the bass to them, usually at about 80 hz. I have discovered that very few subs include a high pass filter, so the main speakers typically output full range.
Using the sub out jack with limited bass management (just a fixed or variable low pass filter) results in the same scenario. It may sound different however because the stereo-mono blending is done at the speaker outputs and not in the preamp stage. Try it both ways.
If your sub has no high pass filter, you may be able to use use one of these speaker level units with your main speakers. https://www.parts-express.com/80-hz-high-pass-8-ohm-crossover--266-458. It should have the same effect as a sub with a high pass filter.
Using the sub out jack with limited bass management (just a fixed or variable low pass filter) results in the same scenario. It may sound different however because the stereo-mono blending is done at the speaker outputs and not in the preamp stage. Try it both ways.
If your sub has no high pass filter, you may be able to use use one of these speaker level units with your main speakers. https://www.parts-express.com/80-hz-high-pass-8-ohm-crossover--266-458. It should have the same effect as a sub with a high pass filter.
from the manual
(6) HIGH PASS CROSSOVER Switch
This switch selects the frequency for the high pass crossover. This crossover is functional
on both line and speaker-level outputs. Smaller speakers with limited low frequency output
may perform better using the higher 100 Hz setting that will reduce the low frequencies sent
to them. Larger speakers with greater low frequency output may be able to handle the 80
Hz setting without strain.
so it looks like i can reduce the load on the 104
thanks for the input
(6) HIGH PASS CROSSOVER Switch
This switch selects the frequency for the high pass crossover. This crossover is functional
on both line and speaker-level outputs. Smaller speakers with limited low frequency output
may perform better using the higher 100 Hz setting that will reduce the low frequencies sent
to them. Larger speakers with greater low frequency output may be able to handle the 80
Hz setting without strain.
so it looks like i can reduce the load on the 104
thanks for the input
charles 1973
Super Member
Since you have 2 subs with a high pass filter (I suggest setting it to 80 hz) by using one sub for each speaker with the speaker connections, you avoid using the stereo-mono blending circuit in the sub. I know it is supposed to only blend the bass, but it may be blending into the higher frequencies as well as having other undesirable effects.
