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TPA3245EVM: TPA3245EVM frequency response

Part Number: TPA3245EVM

Hello,

I'm looking for some help understanding the frequency response of the TPA3245EVM. I have attached an excel spreadsheet with data captured from an AP system two, along with data from a simple simulation.

In the spreadsheet I have plotted the frequency response data I collected, and there is a large difference between the simulated and measured, most notably the peaking still present on the 4 and 8 ohm sweeps.

Could somebody help explain this behavior, or point me in the right direction?

I'd like to better simulate the expected behavior at resonance under differing loads as my application requires a range of load impedance's. 

Cheers,

Josh

TPA3245EVM frequency response.xlsx