Crossover frequency

[skularatna]

I have wharfedale diamond 9.1 speakrers and will also be getting the Wharfedale SW250 sub. I wanted to know what I should set the crossover frequency too. The frequency range on the Diamond 9.1 is 50Hz - 24Khz. I read on a few sites that you should set the crossover to then Hz higher than the lowest frequency of the main speakers?

Is this correct?

 

[Andrew Everard]

I'd set the crossover to about 60-70Hz and see how it goes. Is this for stereo or surround sound?

 

[skularatna]

It will be for surround sound

 

[skularatna]

So 60-70Hz for surround sound movies should be fine i guess?

 

[Andrew Everard]

Yes. I'd aim for 70Hz or even 80Hz in a surround set-up

 

[Sliced Bread]

Out of curiosity, why would it be set higher in a surround sound system than a stereo system?

 

[Gazuk]

I have the crossover for the fronts B&W DM601s2 and centre B&W LCR60s3 set at 60hz with the SW150

 

[Andrew Everard]

JohnNewman:Out of curiosity, why would it be set higher in a surround sound system than a stereo system?

It wouldn't, really, but in surround systems where there is a discrete LFE channel I've often found it worth running the sub a little higher to give some overlap with the main speaker's theoretical lower frequency limit, unless you're running really big speakers capable of serious bass extension.

 

[Sliced Bread]

Andrew Everard:
JohnNewman:Out of curiosity, why would it be set higher in a surround sound system than a stereo system?

It wouldn't, really, but in surround systems where there is a discrete LFE channel I've often found it worth running the sub a little higher to give some overlap with the main speaker's theoretical lower frequency limit, unless you're running really big speakers capable of serious bass extension.

Thanks Andrew.

Would Mission 782's with a frequency response of ñ3db 48Hz to 20kHz be ok set to large or is it better to set them to 50 or 60hz roll off?

 

[Andrew Everard]

With that sub I'd set them to large, and then see whether you prefer the sound with or without double bass

 

[Sliced Bread]

Thanks again

 

[radovantz]

I lately find that overlapping frequency can generate conflict between speakers and subwoofer. This conflict really stress me.

So, i just turn the subwoofer cut-off frequency down at 80Hz to match the receiver's frequency response setup also at 80Hz. According to the User's Manual book, when you set the frequency response at 80Hz, lower frequency will be sent to subwoofer. I think, there would be no frequency overlapping or gap if the subwoofer cut-off frequency is also set at 80Hz.. am i right.. cheers

 

[Andrew Everard]

No. If the receiver's crossover is only sending frequencies below 80Hz to the sub, the crossover on the subwoofer itself will have no effect whatsoever - unless, of course, it's set to a lower value.