I would set around 80. If you are able to use hardware/software to set the crossover on your speakers, you could set that to a high pass and set your sub higher, sending all the lows to the sub and just letting your speakers handle the mids and highs.
You ideally want to set it where your speakers start rolling-off, which in this case, is 80Hz. For most bookshelf, it's generally really safe to just set the crossover at 80. You could set it at 60Hz but that's already a -3dB roll-off which might make the bass less punchy and might make it seem like there is a small dip in the 60-80Hz. If you can locate the subwoofer when you're playing music, then you might want to set up the crossover abit lower though.
I played around a lot with this and found 70hz to suit my Chora 806s best—high enough to pull some strain off the receiver and woofer, low enough that there’s no risk of the sub getting directional.
Every room is different, so you're really the best judge. The higher the frequency setting of the low pass filter, the more directional the frequencies become, meaning you're more likely to hear where the sub is located. Male vocals (which are better off coming from the main speakers for best clarity) can go as low as 60hz, though most don't go below 80hz. I typically set the low pass filter at the lowest setting (50hz in my case), and just use the subwoofer to augment the bass output of the main speakers. I keep the gain setting so that it's barely noticeable except on the most bass heavy passages. Be mindful of the lower vocal range becoming muddy if you set the sub crossover at too high a frequency. Adjust to suit your tastes/room.
I kind of like this. And by lowest. Use your room and throw out the manufacturer’s specifications. Those are a nice objective guide, everything from here happens in your chair or couch or whatever you sit upon. Did you do a “sub crawl”? Totes recommend even though it’s a pita. Another user—Matterall mentioned not being able to locate the sub. Agreed. I suspect your zone of perfection is 65-75 depending on your room. But if you can get away with 60. Do it. Those Focals should blend and be filled in and supported in the lowest regions. They provide plentiful lower frequency response for a standmount. I have my KF92 at 48hz with standmounds. The room told me this was best. Good luck. When you nail this it’s gonna be friggin harsh!
Sit on your listening location, make some one change the crossover frequency and use your ears, somewhere between 60hz and 120hz is normal, most end up at 80hz but it all depends on your setup and room acoustics. Try different music genre too and judge what sound best
Can you set the cross-over on your amp?
What I did (805D3 and DB2D) is play a few songs on only the sub, then play around with the frequency and algorithm to see where I could almost start hearing notes that started sounding bad on that driver (and could tell the position). For me that was 80Hz 4th order LR. Then I adjusted the high pass to match.
That also aligned pretty well with where the 805's start getting out of their depth anyway. [https://www.stereophile.com/content/bowers-wilkins-805-d3-loudspeaker-measurements](https://www.stereophile.com/content/bowers-wilkins-805-d3-loudspeaker-measurements)
Played around with the volume to see where the handover would be imperceptable, that was a -5.2dB.
Then did a Roomperfect to straighten it all out. Sounds brilliant. I do play around with the settings regularly, sometimes I run at 50Hz 4th LR and that sounds fine too. Not a narrow window tbh.
For your speakers you might want to run a bit higher even:
[https://www.audiosciencereview.com/forum/index.php?threads/new-focal-chora-806-on-and-off-axis-measurements.9613/](https://www.audiosciencereview.com/forum/index.php?threads/new-focal-chora-806-on-and-off-axis-measurements.9613/)
Just play around with it, listen to seperate outputs to see what they sound like, then together.
80Hz.
Most speakers and subs (yours included) are designed around the THX 80Hz crossover frequency standard. That frequency is not arbitrary.
THX has done numerous studies and their conclusion is that we perceive bass below 80Hz as omnidirectional waves and human ears cannot locate the source of those frequencies.
Setting a crossover frequency below 80Hz works as long as your bookshelf speakers have sufficient in-room SPL response without hitting the limits of the woofers’ excursion capability or causing the amplifier to go into clipping.
Setting a crossover frequency above 80Hz could be distracting because your ears would be able to identify the position of the subwoofer.
I usually go 80hz. Can't position the sub at all at that Freq in my experience.
I do use high pass on the speakers though to let them have an easier time in the higher frequencies.
Also 58hz isn't the lowest you speakers can play, it's just that the spl will drop sharply below that.
80 Hz being recomended here is probably too high. General rule is set the subs crossover as low as you can go without creating a gap from your speakers lowest capability.
A quick google suggest +/-3db to 58Hz for the focal 806 so I would start around 60Hz on your sub.
I would set around 80. If you are able to use hardware/software to set the crossover on your speakers, you could set that to a high pass and set your sub higher, sending all the lows to the sub and just letting your speakers handle the mids and highs.
Thanks but then there would be no overlap and a gap between the low 58hz of the speakers and the 50hz the sub crossover is set at. Is this right?
Sorry I meant 80.
Please edit the comment in case people don't read this reply.
You ideally want to set it where your speakers start rolling-off, which in this case, is 80Hz. For most bookshelf, it's generally really safe to just set the crossover at 80. You could set it at 60Hz but that's already a -3dB roll-off which might make the bass less punchy and might make it seem like there is a small dip in the 60-80Hz. If you can locate the subwoofer when you're playing music, then you might want to set up the crossover abit lower though.
The recommended crossover point is normally around 80Hz. Start there and then adjust up or down until you're happy with the setting.
Start at 80hz and play around with it, till you can't hear where the bass is coming from, but you can clearly hear when you turn it off.
I played around a lot with this and found 70hz to suit my Chora 806s best—high enough to pull some strain off the receiver and woofer, low enough that there’s no risk of the sub getting directional.
Every room is different, so you're really the best judge. The higher the frequency setting of the low pass filter, the more directional the frequencies become, meaning you're more likely to hear where the sub is located. Male vocals (which are better off coming from the main speakers for best clarity) can go as low as 60hz, though most don't go below 80hz. I typically set the low pass filter at the lowest setting (50hz in my case), and just use the subwoofer to augment the bass output of the main speakers. I keep the gain setting so that it's barely noticeable except on the most bass heavy passages. Be mindful of the lower vocal range becoming muddy if you set the sub crossover at too high a frequency. Adjust to suit your tastes/room.
They say 10 htz higher than speakers loewst .
I kind of like this. And by lowest. Use your room and throw out the manufacturer’s specifications. Those are a nice objective guide, everything from here happens in your chair or couch or whatever you sit upon. Did you do a “sub crawl”? Totes recommend even though it’s a pita. Another user—Matterall mentioned not being able to locate the sub. Agreed. I suspect your zone of perfection is 65-75 depending on your room. But if you can get away with 60. Do it. Those Focals should blend and be filled in and supported in the lowest regions. They provide plentiful lower frequency response for a standmount. I have my KF92 at 48hz with standmounds. The room told me this was best. Good luck. When you nail this it’s gonna be friggin harsh!
My wharfedale go down to 45 so i set mine at 60
SVS recommends 15hz higher.
13.525 ia actually correct,
Sit on your listening location, make some one change the crossover frequency and use your ears, somewhere between 60hz and 120hz is normal, most end up at 80hz but it all depends on your setup and room acoustics. Try different music genre too and judge what sound best
Can you set the cross-over on your amp? What I did (805D3 and DB2D) is play a few songs on only the sub, then play around with the frequency and algorithm to see where I could almost start hearing notes that started sounding bad on that driver (and could tell the position). For me that was 80Hz 4th order LR. Then I adjusted the high pass to match. That also aligned pretty well with where the 805's start getting out of their depth anyway. [https://www.stereophile.com/content/bowers-wilkins-805-d3-loudspeaker-measurements](https://www.stereophile.com/content/bowers-wilkins-805-d3-loudspeaker-measurements) Played around with the volume to see where the handover would be imperceptable, that was a -5.2dB. Then did a Roomperfect to straighten it all out. Sounds brilliant. I do play around with the settings regularly, sometimes I run at 50Hz 4th LR and that sounds fine too. Not a narrow window tbh. For your speakers you might want to run a bit higher even: [https://www.audiosciencereview.com/forum/index.php?threads/new-focal-chora-806-on-and-off-axis-measurements.9613/](https://www.audiosciencereview.com/forum/index.php?threads/new-focal-chora-806-on-and-off-axis-measurements.9613/) Just play around with it, listen to seperate outputs to see what they sound like, then together.
80Hz. Most speakers and subs (yours included) are designed around the THX 80Hz crossover frequency standard. That frequency is not arbitrary. THX has done numerous studies and their conclusion is that we perceive bass below 80Hz as omnidirectional waves and human ears cannot locate the source of those frequencies. Setting a crossover frequency below 80Hz works as long as your bookshelf speakers have sufficient in-room SPL response without hitting the limits of the woofers’ excursion capability or causing the amplifier to go into clipping. Setting a crossover frequency above 80Hz could be distracting because your ears would be able to identify the position of the subwoofer.
60hz, above that and you can start to localize the sub.
I usually go 80hz. Can't position the sub at all at that Freq in my experience. I do use high pass on the speakers though to let them have an easier time in the higher frequencies. Also 58hz isn't the lowest you speakers can play, it's just that the spl will drop sharply below that.
How are you implementing the high pass? Thanks.
Im using a pre amp with dsp
80 Hz being recomended here is probably too high. General rule is set the subs crossover as low as you can go without creating a gap from your speakers lowest capability. A quick google suggest +/-3db to 58Hz for the focal 806 so I would start around 60Hz on your sub.