Harrison Labs 2500 Hz Low Pass Audio Crossover Cable, Male-to-Male RCA, 1 Count, Indoor, Compatible with Audio Devices

Worked perfectly and easy to use.

I got these to take out some of the highs out of my 6X9's in the rear of my car i wanted more deep and mid sounds and it works great not sure if i chose the correct Hz but it sounds good to me and couldn't be more simple to plug into your amp and rca's

Installed these last week. They work as expected. I am using them to band-pass a set of midrange drivers. No complaints.