High pass filter need


What is the best way to add a high pass filter to my front mains (Dynaudio C-1s) from my Mc intosh pre to McCormack DNA-2 amp. 
A seperate line out from the pre goes to my JL sub which has its own filter. 
I want the cleanest option that will not alter the C1 sound other than remove the lowest octaves they can’t really handle that the sub can. id like to reduce the amp and speaker from trying to work on the low end. 
bundy

Showing 1 response by erik_squires

You are going to laugh. 

Seal the port with a t-shirt or old socks. 

This will raise the -f3 point, as well as reduce excursion below the port tuning frequency. This will not however reduce the amplifier load. 

To reduce the amplifier load you need a line level crossover. What I suggest is you actually listen to the filter in the JL sub first and see if you hear any negative effects (besides less bass). 

I still recommend you seal the C-1s though. That will make integration better and give you more dynamic range. 

Best,

E