Subwoofer, how does it work technically?

Thanks Luc

My speakers are active so the sub is plugged directly from the audio interface and so are my near field monitors (I still got two extra line out in interface if needed

With this in mind, its 80/100 still the finest cutoff?

The monitors are two active Ayra RCF5 and the sub is an old active Monitor Audio Radius 360 100Watss

Im so sorry Leandro, Im not tecnichal person at all and I dont understand you enough to be able to supply you with a proper answer. Sorry mate

Do you mean that ideally my sub should have had jack outputs and that I should have then connected the UR44 to the sub and this to the Ayras, getting not direct connection from the UR44 to the Ayras?

All this confuses me so much LOL

Thanks

And do you think the resulta in Pianoteq would pay up the investment?

If my speakers handle 50 as you say, what's the lowest a bass piano sound would go?

I'm really nothing technically should you see that any of my questions make no sense whatsoever

I don't think you should buy another sub: yours goes very low indeed, and certainly as low as subharmonics of any grand piano, even a Bösendorfer Imperial ! It's just a matter of convenience in the cabling and adjustment of levels

Hell All,

I agree with others who have posted the comment that one should not "hear" a subwoofer as a separate entity.  If your ears can localize where in the listening space the sub is placed, then its crossover frequency is set at too high a value, and its overall volume is probably set too loud.  This is a common mistake for new owners of subwoofers:  they want to "hear" their investment in action! This is entirely normal, and may be preferable during the honeymoon period with one's new subwoofer acquisition; after a certain period of time elapses, the user will become annoyed with the new subwoofer's sound in the system, and will probably sound unnatural, and too easy to be located by ear.

Remember, when you set a sub to start rolling off at, say 100Hz, you can still hear it at 200Hz (roughly note Ab below Middle C) and 400Hz (roughly A-flat above Middle C), when the cutoff filter is 6dB per octave.  Restated, a 100Hz low pass frequency allows 100Hz, but is -6dB@200Hz (about A-flat below Middle C) and only -12dB at 400Hz (about the first note A-flat above Middle C).

If you have smallish monitor speakers, it might be fine to feed your monitors the full frequency signal and just let their low frequencies roll off naturally; the sub's frequencies of the piano will be felt where the monitor speakers are simply too small to render much low frequency sound down there.

Personally, I own a pair of B&W Matrix 801 Series speakers and run them full range, and still use a subwoofer to augment their bass, setting the sub's low pass crossover at about 50Hz.  Ironically, I am able to feel the sub's lowest bass without being able to locate its position in my studio, yet the lowest bass "seems" to emanate from the studio monitors.

Remember this:  The lowest Note A on a standard piano has a fundamental frequency of 27.5 Hz; the octaves of note A above the lowest piano note are 55Hz, 110Hz, 220Hz, 440Hz, and so on.

Hope this helps; this is not the definitive reply to all matters pertaining to subwoofers.

Cheers,

Joe