I have a Denon AVR1910 receiver, five "small" loudspeaker and one subwoofer. After Audyssey autosetup, my Denon receiver sets the crossover frequencies at 150 Hz or 200Hz for my five loudspeakers. For different reasons (among them, my Velodyne CHT-15Q equivalent to US DEQ-R series, does dot go very well above 120 Hz and my small speakers have been tested down to 120 Hz at -3 db)I manually change the crossover frequency of my speakers down to 120 Hz.
Question : below the crossover point (150 or 200 Hz) calculated by Audyssey, did the Audyssey software stop calculating correction curve or did it calculated it (down to what frequency ?) so that I can safely manualy lower the crossover frequency ? Does Audyssey compensates for the lower response of my speakers at low fraquencies by enhancing signal between 120 Hz and 150 Hz ?
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Audyssey Labs No, Audyssey does not calculate correction below what it measured to be the roll off point of the speakers in the room. The reason for that is that it could lead to boosting and distortion if the filter were allowed to extend below that point. The only real way to get meaningful output below what is being measured is to experiment with the positioning of the speakers. Typically, moving them closer to the wall will extend their low frequency range.
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Jerome Thank you very much for your quick answer ! I put the front speakers a little bit closer to the wall and here we are : all my speakers are now set at 150 Hz (before that, it was 200 Hz for my front speakers). Anyway, my Velodyne with its 15 inches driver does not go above 120 Hz... So I think I have two possibilities :
1 - I leave the crossover at 150 Hz and I have a hole between 120 Hz and 150 Hz (well maybe not that wide because of the slope of the sub lowpass filter)
2 - I set manually the crossover of the five speakers to 120 Hz and I live with a 30 Hz gap without audyssey correction....
Wich is the best solution ?
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Audyssey Labs I would suggest moving the xover to 120 Hz. It's only a minor change from 150 Hz and should give you a better blend with the sub.
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Jerome Ok, that is what i am going to do. Again, I would like to thank you for your answers. It is always a great pleasure to speak with people who really love their job !
Best regards from France (where the time is 22:21 pm...).
Jerome.
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