Avid Contributor I

Answered

Sub crossover

Forum|Forum|5 years ago
April 18, 2021
13 replies
1018 views

So I am moving from Arc(Sub) to a stereo setup with Amp and Sub.

First of all would like to confirm... The Sub pairs with the Amp wirelessly as with a soundbar, through the app?

How does crossover work? Does the Amp detect a 2.1 setup and adjusts a default crossover? If so is it adjustable (70Hz 100Hz etc).

Much appreciated.

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Best answer by Kumar

Yes to both; you can select the crossover that is appropriate given the nature of your main speakers.

K

KumarAnswer

Yes to both; you can select the crossover that is appropriate given the nature of your main speakers.

K

Kumar

Small edit; the amp does not auto detect the Sub, it has to be added to it by you via the app.

Y

yuvalfrrAuthor

Avid Contributor I

Yes to both; you can select the crossover that is appropriate given the nature of your main speakers.

Thank you for clarifying. Do you know the crossover range? Can it go below 70Hz?

K

Kumar

I remember it to be 50hz to 100hz. Maybe even 110.

Y

yuvalfrrAuthor

Avid Contributor I

I remember it to be 50hz to 100hz. Maybe even 110.

If it's 50Hz that's awesome. My speakers can go down to 40Hz so maybe a 50Hz crossover would be good, despite the 80Hz THX standard. I'll test it.

Thank you Kumar.

K

Kumar

50 Hz makes sense if they go down to 40 with just a -3dB drop, and not -6dB. Specs can be tricky. In the latter case, 60 to 70 Hz crossover may be better to allow the Sub to contribute more at those points.

But test and decide, since it is so easy do this via the Sonos app.

Y

yuvalfrrAuthor

Avid Contributor I

50 Hz makes sense if they go down to 40 with just a -3dB drop, and not -6dB. Specs can be tricky. In the latter case, 60 to 70 Hz crossover may be better to allow the Sub to contribute more at those points.

But test and decide, since it is so easy do this via the Sonos app.

Hi Kumar. My system is yet to be set up, my Amp is on the way.

Someone frightened me by saying that stereo amplifiers cannot adjust a crossover for the main fronts. In other words, should I set Sub crossover to 80Hz then the speakers will kick in around 45Hz and play together with the Sub until the Sub fades at 80Hz.

Is this true? Or can the Amp configure Sub to play till 80Hz and speakers only from higher than 80Hz?

Thanks for your time.

K

Kumar

The sub will also be the Sonos one?

Y

yuvalfrrAuthor

Avid Contributor I

The sub will also be the Sonos one?

Sure.

Sonos Sub, Sonos Amp, Wharfedale Diamond 8.2 (passive books).

K

Kumar

Then don't worry at all. The Sonos sub will integrate very well. The amp will move frequency below the crossover set from the main speakers to the sub in a seamless way via the slopes on the filter. If your sub will be placed somewhere between the two main speakers, I suggest starting with a high crossover as a starting point for the tests.

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