subwoofer cutoff freq

[Zer0K3wL]

Should this be set to the lowest crossover ?
Like for example mains 60hz
center rears at 80hz

which would be best setting subwoofer cuttoff freq to 60hz or 80hz ?

 

[markw]

It's not an exact science.

And, it's not a "brick wall" cutoff. It slowly fades doen the sub's output above whatever frequency you have it set to.

If you'r sure that your speakers are truly flat down to that stated 60 hz, the would set mine to about 50 hz or so. But, you might want to see if your speakers are really flat, not just rated, to that 60 hz figure. Odds are that it statts that downward slopd well abovethat number.

LFE is a channel unto itself a, unless you're runnig your mains full range, I'd set it to on the receiver and set the Xover on the sub itself to either as high as it can go, or possibly take it out of te circuit. Sometimes, a LFE switch will do that.

 

[Zer0K3wL]

not worried about my mains worried about my rears center not being to go down to 60hz being set to 80hz.


what i kindy wonder is will my mains speakers produce 60hz and up for my rears or my subwoofer or non ?

Thought my mains might produce 80hz and below for my rears but not sure.

i have a jamo s606 hcs3 set

with jamo s602 rears and a s60 center

 

[Irvrobinson]

IMO, you need to measure the system's in-room frequency response, because you might have room modes in the 60-100Hz range that are best mitigated by setting the sub's low-pass filter higher in frequency than you'd think, or running the mains full-range. Sometimes you get a really strong room mode at 50-60Hz, and the best remedy is to stick the crossover right in the middle of it. Without measuring you're guessing.

This thread describes how to measure inexpensively.

 

[Zer0K3wL]

im not asking that i am asking whats best to set subwoofer to 60hz or 80hz due my rears and center being 80hz ?

 

[Adam]

If you're wondering what to set the dial on the subwoofer itself to, set it as high as possible if you are using your receiver to do bass management. If the receiver is setting the frequencies, you don't want the sub to filter anything out.

If you can only set it to one frequency on your receiver and are wondering what is the best compromise, I'd try both and see what you like. If you want an answer and don't want to try it for yourself, then I say 80 Hz.

 

[zieglj01]

im not asking that i am asking whats best to set subwoofer to 60hz or 80hz due my rears and center being 80hz ?

Your center and surrounds are small - they are lucky to hit
80 hz >>> I would expierment with 100 hz in the receiver
set-up menu, and then turn the crossover on your subwoofer
all the way up.

 

[Zer0K3wL]

Why its so hard to understand some one with autism..................
asking question getting answers that totally irrelevant to my question.

running test tones ?

Even on svs sound page it say's to set to 60hz on both my s606 and subwoofer.

It does't answer what will handle the gap between subwoofer and my rears and center ?

Thats my question where does the sound from 60 to 80 go to from my rears and center ?

Wil it be handled by my mains aka my fronts that set to 60hz ?
Or is that curve lost ?

 

[Adam]

If you set the crossover on the receiver to 60 Hz, then the audio going to the rears and center that lies between 60 Hz and their lower frequency won't be played by any of your speakers or subwoofer.

 

[j_garcia]

Why its so hard to understand some one with autism..................
asking question getting answers that totally irrelevant to my question.

running test tones ?

Even on svs sound page it say's to set to 60hz on both my s606 and subwoofer.

It does't answer what will handle the gap between subwoofer and my rears and center ?

Thats my question where does the sound from 60 to 80 go to from my rears and center ?

There won't be a gap. For the speakers set to 60Hz, the the sounds will be blended at that point and the same for those at 80Hz. When you set independent crossovers, the receiver will properly send the bass frequency based on that setting for each speaker type (main, surround, center), otherwise it wouldn't offer the ability to set these individually.

 

[jliedeka]

If you want to be sure not to miss anything, use an 80Hz crossover for everything. The way a receiver does bass management is to sum all the channels (including LFE) together and then apply the crossover. That means if you use 60Hz, you could be missing anything in the 60-80Hz range from the LFE channel.

 

[j_garcia]

While the 606s can likely handle a 60hz x-over, I'd probably still go with 80Hz for everything also.

 

[ski2xblack]

Zero, be patient with us. You in fact are getting answers relevant to your situation.

You missed the second post where it was noted that the filters are not brick wall filters, but probably 24db/oct. For example and to help clarify things, in my setup, my filters for both low pass (subs) and high pass (mains) are only 12 db/octave; my subs are set somewhere in the low 60's for low pass, and my mains are high passed in the mid-80's (I don't trust the demarkations on the various controls, old analog stuff, so I don't know if these setting actually reflect the true values.) Regardless, I've got it set up so that room response is as flat as possible, using an omnimic for the sake of objectivity. Even though the relative crossover points are separated by a considerable amount, because they are not brick wall filters, the output in the 60-80 hz both from the subs and my mains is significant and sums to a flat response at the listening position. Point being, if you set your mains/center/surround for 60, 80, 100, or wherever, they will still have output below the chosen frequency (and for the subs, above the chosen frequency).

It's general good practice to high pass your mains/center/rears well above where their response drops off. So if your speakers -3db point is 60 hz, I would experiment with crossover frequencies higher than that by at least half an octave or so.

Whether or not you have a retro-grouch setup like mine, or the latest room correction having AVR, you should read the articles on this page.

Hang in there, and good luck.