Hi Pass Filters

Hello my good friends,

Can you buy a passive Hi Pass filter? When i have a show to do in a small venue, sometimes 1 short horn gives me enough (sometimes too much) bass. The problem is, that if you dont use them in big stacks as Dom does, the driver will unload with any signals below about 50hz. The bigger systems all have processors with Hi Pass built in, but for how often this baby system goes out, buying something simular for this rig is not something i'd concider.

Any ideas greatly appriciated

Hi,

I have got a RMX2450 but its running Mids on another system. Currently got a Crown 2400 on this small system. Looks like its time to swap them over

Cheers

I'm curious, how are you low-passing the cabs at the moment?  I'm assuming you're using an active x-over. Does the x-over not give you the option to set the low x-over point too?

If it's 3 band stereo, could you not use the mid band for it or does it not give enough frequency extension into the bottom range?

whitehousejamie

The quickest way to alter the frequencies, is to add an EQ. A Parametric would be best, but, you'll need to know what you are doing.

Best Regards,

whitehousejamie wrote: Why would i want to take out a big stack of short horns to a show with an audience of 50 people?

Because you need to redefine your audience's definition of enough bass. 

I'd still use a big stack of speakers if it was just me listening to it. 

whitehousejamie wrote: You telling me you dont use a Hi Pass filter on your two stacks of HD15s?

We high pass ours at 40hz with a 24db filter.  They will play lower than 40hz though.  If you turn off the highpass in the venue we do our club night, the roof starts shaking itself to bits, so the highpass is definately taking out frequencies that the box can play.