Frequency range over the front speakers

edualm

Hello

I want to buy me the subwoofer Polk Audio DSW-400.

I have an amplifier estereo and I would like to know if in the option "Low Pass Filter Control" it does the cut of frequencies in the subwoofer and ALSO in the frontal loudspeakers, allowing not to duplicate any frequency between the subwoofer and the frontal loudspeakers

In the manual is indicated the following thing: "Low Pass Filter Control: NOTE: This control does not operate when the subwoofer is connected with Option #1 (LFE Input). This control, which is
located on the back of the amplifier, adjusts the frequency range over which the subwoofer operates"

But in the manual does not put clearly that, beside fitting the frequency range over which the subwoofer operates does also the cut in the frontal loudspeakers.

Please Someone might answer me if this subwoofer does the cut of frequencies in the sub and also in the loudspeakers (allowing that the bass frequencies hear only in the sub and not in the frontal loudspeakers, without no frequency be mixing)

Thanks

Mon40CSMM10

Regarding the low pass filter control, this is valid for all subwoofers that have such a dial.

1. If using the LFE out, then the subwoofer low pass filter dial will be set to its highest setting, often marked as LFE. The receiver crossover setting will cause all frequencies above the crossover setting to be sent to any speakers that are set as small, rather than large. Frequencies at or below the crossover setting will go to the subwoofer.

Example: receiver crossover setting of 80 Hz means frequencies above 80 Hz get sent to any speakers that are set as small, frequencies at or below 80 Hz are output to the subwoofer.

2. If using the speaker-thru connection (i.e, speakers wires from the receiver to the sub speaker in terminals, speakers connected to the sub speaker out terminals), then speakers have to be set as large in the receiver settings so that all frequencies are output from the receiver to the subwoofer. Also note that any speakers set as large will generally not be affected by the receiver crossover setting, the crossover only affects speakers that are set to small. In this configuration, the subwoofer low pass filter dial will definitely have an effect on what frequencies are sent to the speakers (anything at or below the low pass filter setting gets output by the subwoofer).

Example: front speakers that are routed through the subwoofer are set to large, subwoofer low pass filter dial is set to 90 Hz, so then frequencies above 90 Hz get sent to the speakers and frequencies at or below 90 Hz are output by the subwoofer.

cnh

WELCOME TO CLUB POLK!

cnh

edualm

Thank for the answers!

If I have a stereo amplifier and no possibility of setting in the receiver (with all possible output frequencies), then the subwoofer low pass filter dial will definitely have an effect on what frequencies are sent to the speakers (anything at or below the low pass filter setting gets output by the subwoofer)?

So why all this, there will be no frequency doubling between subwoofer and speakers so that everyone, depending of the low pass filter settings, have different frequency ranges.

Thanks
edualm

Mon40CSMM10

If you have a stereo amplifier/receiver, then you have no LFE output or Small/Large speaker settings, so when routing the speakers through the subwoofer using the speaker in/out terminals, the amplifier/receiver will be routing full frequencies to the subwoofer.

Choose the low pass filter setting on the subwoofer that gives the best transition from the speakers to the subwoofer. If you have access to a test track that has a frequency sweep low-to-high or high-to-low, this can help with choosing the best setting.

edualm

Still, I have not bought the sub dsw pro 400.
I have found in some pages of Internet the following thing:

High-Pass Crossover Freq: None
For example in: http://www.acousticsounddesign.com/core/view_BigProduct.cfm?pid=1614&sc=28

Then, I continue without being sure that this subwoofer does the cut of high pass to the loudspeakers because i don´t understand this.

I need that someone who has the dsw 400 (or 500 or 600) confirms to me that the cut of frequencies concerns also the loudspeakers.

Thanks