While i'm not familiar with the Heron's, the fact that the Vega's will play as loud as you like tells me that the main culprit in this situation is your speakers. The fact that they used to play as loud as you like but no longer do so also points to your speakers, especially after verifying proper operation with the Vega's. My first step would be to contact their manufacturer and see what can be done.
I would also contact Sim Audio and inquire about the volume disparity when throwing the surrounds into the situation. I think that something is "funky" there too. Sean
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I would also contact Sim Audio and inquire about the volume disparity when throwing the surrounds into the situation. I think that something is "funky" there too. Sean
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