XLs and sub cut-off frequency

ajayrav · « **on:** 31 Jan 2006, 07:56 pm »

If I want to run a sub in parallel with my XLs to extend and augment the bottom end, what sub frequency cut-off would you recommend so the sub picks up where the XLs drop off?

Thanks,
Ajay

Harry P · « **Reply #1 on:** 1 Feb 2006, 01:30 am »

Ajay, I found with my 25th anny Sapphires and Force subs I got the best results with the 80Hz filters and gradually bringing the sub crossovers up towards 80 until I got a perfect fill. I think in my room it actually ended up at maybe 65 or so as the room had a peak around 70. I'd say experimentaion is the key.