Subwoofer

If I remember correctly the Sony has a gain adjustment on it. If my memory is correct I would suspect you have the gain set too high for the sub and it just isn't able to handle the signal. Again, if I am correct about the Sony having a gain adjustment on it I believe this is the same pre-pro that a friend of mine kept blowing JBL speaker surrounds out with because the gain was set too high.

Had a look at the manual for the Sunfire True Subwoofer MK IV and there is unfortunately no option to bypass the Auto on/off function. Because newer movies are usually Avengers-type they are full of low end, but if you watch dramas or listen to non-metal music, you are going to have issues. The maximum crossover on that sub is 100hz, so you are already almost maxed out.

My advice is to dump the sub and by a used Rel 5 or Rel 7.

 but i find myself always adjusting the gain up and down its a Sunfire True Subwoofer MK IV have mains center and rears set at 90 hz as the sub as well should i open the hz on the sub all the way but it gets to boomy i like tight tight bass at lowest db.

Modern media is full of extra low frequency content. Making simple remote control subwoofer adjustments whether its the gain, on/off or customizable equalization preset adjustments have become a worthwhile advantage.

Unfortunately many consumer sub bass or subwoofer manufactures are a decade behind at including these affordable features. One brand your considering has gone so far as to call these adjustments "trickery."

Beware of non comparative fanboy advise or suggestions. All the best.  

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