Btw, Sound & Vision published a review by Daniel Kumin on AS-EQ1 (Nov '09)

http://www.soundandvisionmag.com/audiovide...-equalizer.html

Room EQ Wizard V5 Beta Released

The new Spectrogram plot

The new RTA Window


Room EQ Wizard is a Java application for measuring room responses and correcting modal resonances. It includes tools for generating test signals; measuring SPL; measuring frequency and impulse responses; generating phase, group delay and spectral decay plots, waterfalls, spectrograms and energy-time curves; generating real time analyzer (RTA) plots; calculating reverberation times; displaying equaliser responses and automatically adjusting the settings of parametric equalisers to counter the effects of room modes and adjust responses to match a target.
New in V5

* Phase, Group Delay, Step Response and Spectrogram plots
* Phase wrap/unwrap, IR minimum phase conversion, IR delay calculation and adjustment
* Separate windows for overlays, RTA and EQ functions
* New algorithms for EQ adjustment offering exceptional tracking of target responses, can be used over any frequency range
* Waterfalls of predicted results of EQ can be viewed in the EQ panel and can update live as filter settings are adjusted
* Support for QSC DSP-30 and Crown USM 810 parametric filters
* "Modal" filter setting provided for parametric EQ filters to aid in correcting modal decay

Link here

A bit embarassing. As to date, I have yet to purchase the XTZ Room Analyzer. Btw, anyone using this?

I have been using it, but its still in beta, still using the old one as it is more familiar to me.

I am curious to know how does my demo room performs and how well does AS-EQ1 helps.