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K-Bob's real problem is ...

Posted by dhrab (A) on May 1, 2017 at 09:15:20

In Reply to: Behringer crossover for subs was a total fail posted by K-Bob on April 30, 2017 at 18:48:48:

Your initial failure doesn't surprise me in the least bit based on our recent off site email exchanges ... what the commenting members here aren't aware of is you have two massive 9db nulls ... one at 71hzs and the other at 125hzs according to the REW graphs you sent me ... when you asked the EQ to flatten the curve it took the instructions and did it assigned job ... unfortunately you don't have anywhere near the required watts available to handle that task

To raise a null 3db requires double the watts .. to raise it 6db you need twice as many watts as it did to raise it 3db and to raise it 9db you need twice as many watts as you did to raise it 6db ... it becomes exponential and you need an incredible amount of watts to raise both nulls 9dbs each

Your EQ was only doing what you asked it to do and flattened the curve ... unfortunately you didn't have anywhere near the wattage to handle the job so the EQ did as instructed flattened the curve and you massively clipped the amp immediately resulting in the tremendous distortion

I'm surprised your amp's protection circuitry didn't cut in and shut it down or that your neighborhood didn't experience a temporary Brown Out

There is nothing wrong with the cross over or the way it is implemented .. there is nothing wrong with the EQ and it's only doing what you instructed it to do ... flatten the curve ... the problem is "operator error" in you not realizing the incredible amount of watts require to raise two 9db nulls to flatten the curve

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Kimber Kable

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