Infinity Cascade Twelve subwoofer, malfunctioning

[rostroface]

Or try a more "direct" conection :

1.- receiver sub pre amp to line in subwoofer

2.-receiver front pre amp to power-amp to run left /right speaker

3.-Rabos off , level half or bit more , switch to LFE

4.- configure your denon to "SUB on" and make the adjustments in denon , like subwoofer level to maximum , make all the adjustments on the receiver , just let the subwoofer like step 3 

:)

[rostroface]

I dont speak english very well , i am also a infinity subwoofer owner , maybe the problem is a overheat of the subwoofer because the level on subowoofer its too high , or just a bad configuration in the receiver ... & i can hear lots of high frequency bass trough the sub :/