Audyssey XT Room Calibration help....


I am wondering why when calibrating all 8 seating positions with my Onkyo Pro SC-885 pre processor it calculates the distance to near perfect but the crossovers are so out of wack. Speakers are Paradigm Signature S1's,C1,ADP1's - EG: 120HZ for rears which are crossed over at 70HZ, 120HZ for center and crossed at 60HZ, and fronts at 90HZ which are crossed at 58HZ. Should I just put them at full range or leave the settings as is????

ALSO: When a new installed powercord(s), interconnect(s), speaker cord(s), or component is connected to your system and you have prior calibrations should you re-calibrate with the new addition???? Any help would be appreciated...

REHGARDS Bacardi
128x128bacardi

Showing 7 responses by kr4

I do not understand your numbers as expressed but none of those speakers are full-range and should be crossed over as recommended. Note that the so-called low frequency limit advertised was not measured in your room.

"powercord(s), interconnect(s), speaker cord(s)," make absolutely no difference. No need for recalibration.

Other component? What other component?

Kal
Audyssey's recommendations do not seem unreasonable as they take into consideration your room's acoustics and the performance of the speakers as you have placed them in that room.

If you replace the amp or processor, you should re-calibrate although the reasons have nothing to do with "(eg: S/N ratio, db ratings, power ratings)."

Kal
To be precise, the sensitivity of the power amp could affect the balance with the sub. SPL/Power are not relevant.

Kal
uncertain smile wrote:
i would suggest that because speaker cable affects the sound reproduced by the speakers from the receiver generating the test tones that recalibration when changing those is necessary. power cord to the amp would affect the sound as well.
You have got to be kidding.

Kal
Well, Uncertainsmile, you do raise the two possibilities that I accept. Either one believes the cables make a difference or one does not believe they do. How would that affect one's need to recalibrate?

If you do not believe, then there's certainly no reason to recalibrate.

If you do believe that the cables made an improvement, then why would you want Audyssey to compensate and correct the change wrought by the cables you just paid for?

So, you can have it either way. ;-)

Kal
I am being reasonable in even entertaining that changes in cables make any significant difference at all!

Why would you assume that Audyssey would enhance a change in FR, for example, and not attempt to flatten the FR as it does with any system?

The most important changes that demand a recalibration are those that affect level, sensitivity, gain and, even then, only if they affect fewer than all the channels. Any change in level, for example, that applies to all channels needs no recalibration. By definition then, a change in the power cable for the prepro or AVR does not demand a recalibration.

Since Audyssey is actually MEASURING the sound objectively, you would first have to demonstrate that any of the cable changes make objectively measurable changes.

Kal