I ended up splitting the bogus "ransom" $$ with XTZ, and just got my kit delivered this afternoon.
Slick product! It took a couple tries to d/l the software (hint, the Serial # is the 14 numbers following "XTZ" on the box label), but smooth sailing since. I plugged the USB cable into my WinXP laptop, and plugged the RCA cable with included Y-connector into an unused pre-amp input. The interface (even in expert mode) is quite intuitive. Haven't even bothered to read through the (short) manual yet. First time I ran it, it showed lots of excess energy/reverb in the midrange (sorry, didn't save that graph), and a bass bump around 30 Hz. I placed an acoustic pad over my HDTV, and dialed down the 25 Hz Bass control -2 dB, then re-ran the measurement. I got the following plot, with NO measurable bass modes! I still need to measure the impact of various acoustic panels and speaker placement, but it's already sounding better! Unfortunately, don't have any more time to play with it tonight, as I'm off to our monthly TBLS meeting, where I will extol the virtues of this fantastic tool!
I say RUN, don't walk, to
www.xtz.se and order this kit ASAP! However, email XTZ first (I was dealing with Jens) to see if they've rectified the ?? bogus Customs/Duty charges that were levied on my shipment.
Will post more pics and updates later this week.