Subwoofer Question

In case it helps, here’s a method to find the best locations for a sub(s) in your room…

https://www.audioholics.com/home-theater-connection/crawling-for-bass-subwoofer-placement

Here are some steps from Paradigm how to adjust sub settings (after you’ve found proper placement) that I’ve found to be simple and effective…

1. Turn the Subwoofer Level control completely counterclockwise to its minimum; 2. Turn the Subwoofer Cut-Off Frequency control clockwise to its highest frequency (i.e. 150 Hz). 3. Set the Phase Alignment Control to 0°; 4. While you listen to a bass music or video selection in your primary listening area, have an assistant turn up the Subwoofer Level control until the subwoofer can be clearly heard; 5. Have an assistant try the Phase Alignment control until you hear the most bass. Your subwoofer and front speakers are now in phase. Do not change phase alignment again unless you move the subwoofer or the front speakers to a different location in the room or move or remove large items of furniture or room furnishings (i.e. carpet, draperies, etc.) 6. Turn the Subwoofer Level control completely counterclockwise to its minimum. 7. Turn the Subwoofer Cut-Off Frequency control completely counter-clockwise to its lowest frequency (i.e. 50 Hz); 8. Slowly rotate the Subwoofer Level control until you match the subwoofer output level with the level of your front speakers. Bass should be clearly audible, but not intrusive; NOTE: If using an A/V receiver or processor to control crossover setting, skip the next step and set the subwoofer cutoff frequency control to ‘Bypass.’ 9. Slowly rotate the Subwoofer Cut-Off Frequency control until you hear the best subwoofer/main speaker blend. If the sound is too ‘thin,’ you have not set the frequency high enough; if the sound becomes ‘boomy’ you have set the frequency too high. Adjust until you find the most natural balance.  The sub should not draw attention to itself.

In both cases you really should have someone else to help to get best results. 

Keep in mind that the 60Hz crossover setting isn't a cliff.  There is some slope to that rolloff above 60Hz and those upper frequencies the sub is playing can be additive to the same frequencies the mains are playing.

I'd set the crossover on the sub lower to something like 40Hz and see how it goes first.

Just curious, what speakers are you pairing them with, how big is the room, what gear are you using and are you high pass filtering your mains? Some other info there could help to dial in your setup.

@paradisecom is right in that a xo point @60hz doesn't stop your sub from playing and adding @240hz. Albeit probably 20db down or so, it will still add to what the mains are doing. Combinebthat with the likelihood of a 200hz room mode and you have some extra weight in that region for sure. I'd be willing to bet if you measured on REW a L with sub vs R with sub, the side where the sub is placed will be 1-2db higher under 500hz. Try centering your sub between mains, and perhaps lower your xo point. Other option would be using dsp to hard 4th (or higher) order filter to build that xo point to be a cliff where Gandalf shouts "You Shall Not Pass". After you try that for a weekend, just buy a second sub. I upgraded my single Rythmik 12" sub to a pair of Rythmik F8, and I now have perfect stereo imaging  with very good separation with high pass filter around 150hz and raising spl measured down to 9hz in my small room. With bass notes, it's a strength in numbers thing. 

-Lloyd

Hi Loyd, Check out my virtual system. All the answers to your questions are there. Thank you! Im going to lower my crossover point. My speakers go down to 44Hz so I can go lower.

Two subs are always better than one!!!!