leggi qui.. questa discussione l'ho avuta un mesetto fa..
dear staff,
I'm italian and I'm going to set up my home theater with your advising. please I don't have understand one thing in the 7.1 system..
the back surround should be the direct firing type and placed together on the back wall.... what is the correct height? firing type you mean ears height? or may the surround back shoul be placed at the same height of the surround SL-SR?
sorry about my english i need to improve that and thank you for your time
Nicola
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Dear Nicola,
Your English is no problem, I understand your question.
Our universal recommendation for back speakers in a 7.1 system is two high dispersion (dipole or bipole) speakers spread about 60 degrees and 0.5m or more above the listeners heads. What is most important is that every seat hears a smooth even sound and that no one can hear the location of the speaker when looking at the screen.
Two direct radiating speakers side by side and 0.5m higher that listeners heads is an alternative recommendation when using current THX Certified AVRs that have the Adaptable Speaker Array (ASA) feature. ASA is unnecessary with new AVRs that have DD-HD or DTS-HD decoding because the are capable of 7.1 discrete playback.
Have fun with your new system.
John Dahl
Director, Education
THX Ltd.
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dear john,
thank you very much for your quick answer, i 've bought the klipsch thx ultra 2 system and i'm going to set up all the speacker, i've a last question and i promise i will not disturb again..

.. in the web site the height of surround (not back) are reccomended 2 or more feet above the listeners ears.. but the back and the surround shouldn't be to the same height? i mean i put the surround to the same height of back surround (0,5m)or not? thank you again
Nicola
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Hi Nikola,
Not necessarily. The goal is to have smooth coverage of every seat without being able to hear the individual speakers. Having them at the same height is OK so long as the soundfield meets requirements above. As always, the most important thing is the result.
Keep listening,
John Dahl
Senior Fellow
THX Ltd.