Is it possible to do measurements of an unequalized system with analog sweeps, and then for playback insert the equalization after the source but before the A16? By equalization I am broadly including frequency, time and delay compensation. If the equalization is done separately for each channel, then since these linear operations and filters should commute with the Smyth SVS linear filters in theory it should work, although their may be implementation issues. However, if the equalization is done jointly for multiple channels (such as Trinnov equalization with remapping), the situation seems less clear. Anyways, so long as one has channel-wise equalization before the A16, such as minidsp, audyssey, dirac , with blu-ray, AVR, PC, respectively, then one should obtain the same equalization as if digital sweeps were output over HDMI followed by equalization (not sure about dirac: does it do remapping?). This approach doesn't rely on any capability for PEQ in the A16 itself. Of course, the requirement to have the equalization in the loop affects portability and in particular the ability to share PRIR, unless one also shares an equalization filter, which may not be available or compatible. I wonder if anyone has tried this with the A8.