waste a écrit:Donc selon toi j'ai intérêt à prendre le 709 et non le 616?
Je pense que oui... mais cela n'engage que moi...
ps
sur avs
http://www.avsforum.com/avs-vb/showpost ... t=51803#g1
2EQ. This is a very basic version of MultEQ found in entry-level AVRs. It uses a very basic filter resolution for the satellite channels and applies no correction at all to the sub channel. 2EQ uses only 3 mic positions for measuring the room and speakers. My recommendation to anyone using a 2EQ-equipped unit would be to upgrade as soon as funds allow.
All versions of MultEQ above feature Adaptive Low Frequency Correction with the exception of 2EQ and all four versions check Crossover, speaker polarity, delays and levels.
There is a Professional version of MultEQ called MultEQ Pro (which is also available to consumers). This version runs on a laptop computer, comes with a higher quality individually calibrated mic and offers up to 32 mic positions. This highly sophisticated version of MultEQ will run only on Pro-ready AVRs and AVPs – using the AVR’s or AVP's on board version of Audyssey. For details of which units are Pro-ready, see Audyssey’s website.
h)1. Why do I need MultEQ?
No normal room is acoustically perfect. Hard surfaces (such as furniture, walls, floors and ceilings) cause reflections when sound waves hit these hard surfaces and bounce off them. You hear these reflections a fraction of a second after the direct sound coming from your speakers and this causes a form of distortion – you hear it as ‘muddying’ or poor imaging, or boomy and flabby bass. At one time, the only way to control these distorting reflections was to ‘treat’ the room with specialised wall treatments and bass traps. While that might be acceptable in a room that is dedicated to a home theatre, it is rarely acceptable in a normal domestic environment. You may have seen the expression ‘low WAF factor’ where ‘WAF” stands for ‘Wife Acceptability Factor’ or ‘Wife Approval Factor’.
Nowadays, thanks to digital electronics, MultEQ is able to analyse the reflections bouncing around in your room and correct the problems they cause. How MultEQ does this is explained in this section.
Before we move on, it is worth mentioning that MultEQ is not a substitute for room treatments and, where possible, treating the room will always yield substantial benefits and will help MultEQ do an even better job.
If this answer helped you, or failed to help you, please click here to visit the Audyssey FAQ Poll, Comments & Suggestions Thread to vote in the Poll or to leave a comment. Your participation will help me make the FAQ increasingly useful. Thanks!
Further Reading:
A guide to room treatments by Ethan Winer
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h)2. What is the difference between the various versions of MultEQ?
There are four versions of MultEQ: in rising order of sophistication, they are 2EQ, MultEQ, MultEQ XT and MultEQ XT32. Each version uses the same core science but each one is found in progressively more costly AVRs. So 2EQ is usually found in entry-level units while XT32 is found in ‘flagship’ units. Each version has different filter resolutions and the different versions also have different numbers of measuring positions for the Audyssey mic which comes with Audyssey-equipped units.
The various Audyssey versions sound distinctly different, with improved quality each step up from 2EQ-MultEQ-MultEQ XT-MultEQ XT32 (the last being the latest and greatest).