NICELY done
That is some significant low end gain, and with no EQ bogging up the excursion down low. Hopefully it works pretty well at blocking out the bass upstairs compared to the IB as well. Looking forward to some impressions with low bass movies.
Can you provide a measurement up to 200hz with the speakers in play as well? Now that I know Sonnie's demo when you guys got the dual RLp-15 LLT running with the Plus/2s was roughly 6-7db hot, the effect you may be after is running your sub a little hot too. With the increase in headroom and decrease in low end distortion the port provides, you can run it blazingly hot if you so desire
