HKTS 8 6.1...Bass question

[thecommish16]

There is an independent bass level adjustment on the back of the sub in the Harman Kardon HKTS 8 speaker system. How do you know where to position it? I have it on the less side...but was wondering how far to push it? Is there a limit?

Also, on the AVR 240 I've only gone as high as +10db and it is LOUD.

[thecommish16]

Thanks in advance!