NWB - Community Blog

19 Aug 2011

Subwoofer cross over

Filed Under : Other , Gear

Posted By : Mutha Humbucker | Comments : 12

Just a quick question

My long throws are having new speakers in and so I'm using a pair of LEM 15" subs with my passive mids and tops just for the weekend... The subs are powered so I'll be coming out of my passive crossover straight into the subs any ideas

Comments

# Posted by The Kasuals Solid Sixties Musi... - 19/08/2011, 10:40 (GMT)

What are you actually asking?

Active xover is the best way to go, Behringer CX3400 - http://www.behringer.com/EN/Products/CX3400.aspx

If you can alter your xover you want to set it around 100/90hz.

Lee :)

# Posted by Mutha Humbucker - 19/08/2011, 11:25 (GMT)

My bad I want to make sure that I'm crossing over correctly as my crossover is set for an 18" 700 watt speaker and the subs I'm using just for tonight are 15" 400 watt subs should I lower the cross over setting a little ??

# Posted by Mutha Humbucker - 19/08/2011, 11:26 (GMT)

Ps Also I have a behringer crossover and enhancer in the rack which us what I'm currently using

# Posted by Tony- Vocalist - 19/08/2011, 12:05 (GMT)

Set the crossover frequency a little higher for your subs, as they shouldn't go as low as your 18s, also they arent as powerful...So watch their volume.
Play some recorded music through your system and move the frequency till it sounds sweet..... You may have to change the frequency of your mids as the system as the system wont be balanced...... again moving the frequency till you find the sweet spot whilst playing recorded music through.... I always use the Sgt Pepper album and surprisingly enough a Robbie Williams album ( the one with let me entertain you) as they are very clear recordings!

# Posted by Mutha Humbucker - 19/08/2011, 12:08 (GMT)

Nice one peeps always better to check

# Posted by Bass Bloke - 19/08/2011, 13:49 (GMT)

Hello , if yer subs are powered then you wont need a feed from your ecternal xover , thye subs will have their own xover , or even at least some sort of eq etc , so any feed will do for them , even a mono feed

trig

# Posted by The Kasuals Solid Sixties Musi... - 19/08/2011, 16:43 (GMT)

Not all powered subs have built in xovers, you generally find that most powered subs that do have inbuilt xovers are alays set too high, usually around 120hz.

So an active external xover is always the best bet, at least that way you can set it to what you want, within reason.

Lee

# Posted by DAKOTA - 19/08/2011, 17:31 (GMT)

Err !" I know dude thanks .lol

but his xover is passive not active !!

but why fuck around when a standard audio input will clearly do the job , leaveing his amp to run the tops ?

# Posted by The Kasuals Solid Sixties Musi... - 19/08/2011, 17:54 (GMT)

Glad you know dude!

Not everyone does though, so best to try and cover all bases if poss, or in your words, fuck about with it!!!

Lee :)

# Posted by DAKOTA - 19/08/2011, 18:03 (GMT)

Ha Ha ! soz mate , i am a bit to the point lol

# Posted by The Kasuals Solid Sixties Musi... - 19/08/2011, 18:05 (GMT)

No worries...............lol

Lee :0

# Posted by Wagontown - 19/08/2011, 18:12 (GMT)

Hi Lee ,you certainly know your stuff.

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