Your JBLs should have a sensitivity of about 93-94dB at 1 watt/meter. I imagine your Polks are like most modern speakers and are under 90dB. That said, your JBLs have an impedance of 8 ohms or 10 or...
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Your JBLs should have a sensitivity of about 93-94dB at 1 watt/meter. I imagine your Polks are like most modern speakers and are under 90dB. That said, your JBLs have an impedance of 8 ohms or 10 or...
A few things.
First, you need to verify that your speakers are working properly. Make sure all drivers are playing, try changing the settings etc. perhaps get help from a more knowledgeable person...