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Denon Audyssey Mic
This thread has 11 replies. Displaying all posts.
Post 1 made on Monday August 1, 2011 at 20:04
onetime
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Is there any reason I cant extend my mic cable like another 30'?

Also, just out of curiosity, do you think the Audyssey mic set up is that much better then doing it manually?
If you don't stop and look around once in a while, life will pass you by.

You're an analog guy living in a digital world.
Post 2 made on Monday August 1, 2011 at 20:36
SignatureSV
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ive often wondered if you can extented it.

Audyssey works well when your customers dont really know better, where the new set up infantly sounds better then the bose unit you replaced or the panasonic HTIB.

Its always best to do it manually using an spl meter, but for a non hometheater/concerning customer audyssey works fine, i always find my self manually tuning the sub woofer though......
The Bitterness of Poor Quality is Remembered Long after the Sweetness of Price is Forgotten! - Benjamin Franklin
OP | Post 3 made on Monday August 1, 2011 at 20:42
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On August 1, 2011 at 20:36, SignatureSV said...
ive often wondered if you can extented it.

Audyssey works well when your customers dont really know better, where the new set up infantly sounds better then the bose unit you replaced or the panasonic HTIB.

Its always best to do it manually using an spl meter, but for a non hometheater/concerning customer audyssey works fine, i always find my self manually tuning the sub woofer though......

I here that. Last time I used Audyssey in my living room, the center channel turned really muffled. But being tiered and lazy I left it.

But I cant think of any reason I couldn't use a 3.5 extension cable for the clients.
If you don't stop and look around once in a while, life will pass you by.

You're an analog guy living in a digital world.
Post 4 made on Monday August 1, 2011 at 20:54
sofa_king_CI
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On August 1, 2011 at 20:36, SignatureSV said...
Its always best to do it manually using an spl meter, but for a non hometheater/concerning customer audyssey works fine, i always find my self manually tuning the sub woofer though......

Audyssey is doing WAYYYYYYY MORE than just setting speaker levels. Have you been to any of the Denon CI trainings or Audyssey demo's/trainings at Cedia? if not, be sure to the next time you get a chance. 

We use Audyssey all the time and then fine tune via SPL and Ear via demo's. 

We've extened the mic and haven't had issues. Try it, if it doesn't sound good, don't use it or tweak it. 

OR better yet, sell the higher in models and the Audyssey pro license and do a pro calibration where you end up with something like 100' or 150' of cable.

do wino hue?
Post 5 made on Monday August 1, 2011 at 21:25
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On August 1, 2011 at 20:04, onetime said...
Is there any reason I cant extend my mic cable like another 30'?

Also, just out of curiosity, do you think the Audyssey mic set up is that much better then doing it manually?

Yeah- it's a high impedance mic and when the cable is extended, the response of the mic goes out the window.

Your ears are the final judge but Audyssey analyses data that people can't, unless they can discern multiple reflections, phase cancellations and frequency anomalies. Yeah, I know "the human brain is the most complex computer known to man" and all that. The problem is that unless the user knows exactly what to compensate, how much and in which direction, it's not going to work well.

If you have a way to see what changes are being made, go nuts. If not, it will be a long, slow process of trial and error.
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder."
Post 6 made on Monday August 1, 2011 at 21:28
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On August 1, 2011 at 20:42, onetime said...
|
But I cant think of any reason I couldn't use a 3.5 extension cable for the clients.


So you don't have a problem taking money but not doing the process the way it's intended, in a way that won't guarantee the best results? Great.
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder."
Post 7 made on Monday August 1, 2011 at 21:28
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On August 1, 2011 at 21:28, highfigh said...

So you don't have a problem taking money but not doing the process the way it's intended, in a way that won't guarantee the best results? Great.

Please delete.
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder."
Post 8 made on Monday August 1, 2011 at 21:32
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On August 1, 2011 at 20:54, sofa_king_CI said...
Audyssey is doing WAYYYYYYY MORE than just setting speaker levels. Have you been to any of the Denon CI trainings or Audyssey demo's/trainings at Cedia? if not, be sure to the next time you get a chance. 

We use Audyssey all the time and then fine tune via SPL and Ear via demo's. 

We've extened the mic and haven't had issues. Try it, if it doesn't sound good, don't use it or tweak it. 

OR better yet, sell the higher in models and the Audyssey pro license and do a pro calibration where you end up with something like 100' or 150' of cable.


The Pro uses a 75' cable because it uses a low impedance mic, which doesn't experience response changes due to cable length.
My mechanic told me, "I couldn't repair your brakes, so I made your horn louder."
Post 9 made on Monday August 1, 2011 at 21:39
drewski300
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I believe Denon (or Matt) recommends not extending it but if you have to I believe the number was 25-30'. Anything more is not recommended.

As noted the pro allows alot more flexibility and isn't that big of an investment.
"Just when I thought you couldn't possibly be any dumber, you go and do something like this... and totally redeem yourself!"
Post 10 made on Tuesday August 2, 2011 at 17:21
jberger
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I asked about this and was told 25' on a decent extension cable is not a problem.
Post 11 made on Tuesday August 2, 2011 at 17:30
SB Smarthomes
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I use a 25ft extension all the time and the tangible settings like distance are still accurate.  When I need to go longer I use the Audyssey Pro kit and Audyssey Pro AVR. 

I keep a 75' XLR cable in the Audyssey Pro kit so can go 100ft using it and the included cable.

I also keep the standard Audyssey mic & 25ft extension in the Pro kit because I'll use the mic stand from the Pro kit when calibrating the lower end AVRs with the included mic.
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OP | Post 12 made on Thursday August 4, 2011 at 15:09
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Attention all,

During many recent Denon + Audyssey trainings a number of installers asked if it were possible to extend the included Denon/Audyssey calibration microphone cable. As you know, there are instances when the installers need additional length, such as when the receiver is in an equipment closet away from the listening room.

To see if it were possible, a pre-made 25ft 3.5mm mono extension cable (male to female) was supplied to Audyssey, and had has tested in their lab. The primary intent of the testing was to see if the extension cable would alter the delicate, low-level signal from the microphone to the extent that the receiver would arrive at an incorrect Audyssey room correction solution. Audyssey's lab tests showed that the 25ft cable does indeed change the readings the receiver gets from the microphone, but not to a degree that it would alter the Audyssey "solution" to any appreciable amount.

This is what Audyssey had to say specifically:

"The extension cable causes an approximately -1.5 dB rolloff at 20 kHz and it is slowly changing, so the difference is not just at 20 kHz (it is also affecting the >2 kHz region). There is little change at 1 kHz, so absolute level calibrations will be accurate (i.e. Dynamic EQ, Dynamic Volume). The rolloff will, of course, be compounded if this cable were extended further (by daisy chaining)."


Audyssey's conclusion:

"The difference is marginal enough where it will not ruin a calibration"

As a result of their testing, we now know that extending the microphone cable is a viable solution for use when needed. Of course, this gets us to the question: how do we get an extension cable or where do we get one? The answer is that the cable can be sourced from MCM Electronics [Link: mcmelectronics.com]

Addendum

This extension cable has only been tested on Denon receivers, and therefore the effect it may have on other calibration microphones is not know. For that reason, you should not use it on any other receivers with the assumption that it will not adversely affect the calibration readings. The cable may physically work, but the cable's electrical properties may alter the signal to the point the receiver arrives at an incorrect room calibration reading.
If you don't stop and look around once in a while, life will pass you by.

You're an analog guy living in a digital world.


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