Floor Loudspeaker Reviews

I was always under the impression that the specified frequency response of a loudspeaker is under anechoic conditions. Here the specified -3db point is 25Hz but the anechoic mesurements shows -10 dB at 25Hz w.r.t. 100Hz. Apparently the manufacturer has considered 7dB of room gain.

To the reviewers, is there any industry standard of room gain amount to be added to the measured anechoic (/quasi-) measurements of a speaker, Or any standard room size based on which they draw their -3dB response?

Secondly, regarding the rising low frequency in your anechoic measurements due to stated artifact of nearfield measurement techniques, what would be the order of the error that your readers may safely assume?

Hello JA, it was mentioned that some colloration could be noticed on some piano recording that was reproduced in a real listening room. I was quite anxious to see in the measurements plot the reasons for that, but only a suspect of the ressonance in the side pannels was commented to be a possible cause. However, in the frequency response in the JA room (figure 6), I could notice some peaks and valleys between 500-800Hz and on 2.5-3.0KHz. Could they be indications for these collorations?

Andy has the crossover point between the midrange and woofer fairly low. A higher crossover point at around 250hz to 350hz to would somewhat side-step the floor bounce cancellation in the lower-midrange we see in the measurements.
In fact, this design is no different from a pair of standmount speakers with a pair of passive subs underneath. And how much does it cost again?

In your humble and professional opinion, which of the following full range loudspeakers would you say are the best in this price range:
1) Rockport Technologies Avior II
2) Magico S5 Mk.II
3) Wilson Sasha DAW
4) EgglestonWorks Viginti

Any comparisons ?