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Chung wrote:
Nousaine wrote: (---MIKE---) wrote: I'm not convinced that automatic room equalization is useful. I purchased a Rane 1/3 octave equalizer and spectrum analyzer. When I try to "equalize" the room using the analyzer, the results are awful - much too bright. This could be because my speakers (DBX Soundfield One) are not adaptable to this type of measurement but I had to just try to eliminate a few peaks and balance the bass. The end result was good. ---MIKE--- Many people forget that equalization for far field response is not "flat" but needs the downsloping shape (1-1.5 dB per octave in rooms; 3 dB in cars.) The reason for this is not at all intuitive but you can verify the need for yourself by equalizing a speaker for flat response in the near field (or anechoic) and then re-measurig the speaker in the far field. You'll see that the flat near field response has a downslope in the far field. The HK-AVR635 actually takes near-field and far-field measurements of the front-stage (LCR) speakers into account when computing the proper manipulations to the signals. In addition, it also automatically calculates delays and cross-overs for all the channels, based on measurements of time-domain responses. The process it uses is much, much more complex than taking a microphone and try to flatten out the response with a 1/3 band equalizer. It actually uses a set of parametric equalizers for all the channels. The reviews so far are very positive, especially in how the center-channel is much more clearer, and in how the low-frequency response of the room is smoother. Unfortunately, since the 6-channel input signals are not digitized, those advantages are not available in the 6-channel direct mode, which one would use for listening to SACD or DVD-A. Having great respect for Floyd Toole, and having heard great things about this latest implementation of room compensation elsewhere, I'd love to try the HK -- the deal killer for me, right now, is that it doesn't have ilink, which would bring SACD and DVD-A into the DSP fold. I'm really hoping they'll amend that in the next product cycle. -- -S If you're a nut and knock on enough doors, eventually someone will open one, look at you and say, Messiah, we have waited for your arrival. |
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