"Official" Audyssey thread (FAQ in post #1) - Page 196

Originally Posted by vtsteevo

I moved all furniture out of the room

Originally Posted by guy86

I have an Onkyo 805 and some Klipsch speakers. I am not using surround back speakers and was wondering about bi-amping the speakers. The audyssey always sets my main speakers to Full Band. I put the crossover to 60 manually, but sometimes I left it at Full Band. Can I keep it at Full Band, or will it ruin the speakers with them being Bi-amped? From the manual, it looks like all I do is run a set of wires to each terminal on the speakers, remove the jumper, and connect them to the Front terminal and Surround back terminal, and set it to bi-amp in the menu correct?

Originally Posted by pepar

It is a kit that is purchased from Audyssey consisting of - someone correct me if I'm wrong - the Pro software and an individually calibrated microphone with a custom calibration file. I'm a bit sketchy on this part, but there is a cost for the kit and then, I believe, a fee to register it with a particular AVR/pre-pro.

Originally Posted by vtsteevo

It just seems very odd that the receiver set the crossover frequency for the surrounds and center very close to the lowest frequency response of the speakers based on their specs - yet for the front speakers, its way off.


Surrounds and Center can go as low as 100 HZ, and the receiver set those to 100 and 120. The fronts can go to 80 HZ, and the receiver set those to 200

available only to professional installers who have completed Audyssey training but there have been exceptions.

Originally Posted by jsil

warlord260 & pepar thanks for your inputs. I'm going to run Audyssey again today and post result.

Originally Posted by vtsteevo

[snip]
I am happy with the sound, but I have nothing to compare it to... this is my first set of speakers/receiver and I want to make sure I didn't get defective speakers. Any help is appreciated.

Originally Posted by warlord260

i am intrested to see what happens
the surrounds at full band seem strange to me
keep us posted

Originally Posted by dogdoctor

Could someone help me understand something here. I'm using a very old (ie. 8-9 year small bookshelf speaker system) - which as much as I would love to upgrade, the sound they produce to both my wife and I is great for what I would consider a small living room. I picked up the Denon 1909 and this is my first go around with Audessey Callibration. I just replaced the H/K 335 and when I used the H/K auto setup, I tweaked the setting to what I felt was comfortable (without really understanding crossovers). I just called the manufacturer (Cambridge Soundworks) and the all the speakers supposedly have a rating of 50 hz to 20 Khz. Now with the H/K I had left the Crossover settings at 80 hz without knowing any better. But when I ran the Audessey the receiver came up with a crossover of 250 hz for the Fronts/Center and 120 hz for the surrounds. Now I will say the sound is spectacular to my ears, but the question is should I be changing anything. I changed the LFP/LFE for the sub from the set 80 hz to the 120 hz I read in the faq. Otherwise I've left it all alone. Thanks for your input. I feel like I'm writing a deer Abby...sincerely, Confused in Crossover Land.

Originally Posted by jsil

warlord260,
Results #1
Fronts Full band
Center 70Hz
Surround Full band
Surrbacks 90Hz
Surrbacks 90Hz
LPF of LFE 80Hz

Results #2
Fronts Full band
Center 80Hz
Surround Full band
LPF of LFE 80Hz
Double Bass on

Originally Posted by pepar

Are they 2-way or 3-way speakers? If 3-way it almost sounds like (heh, heh) the woofers have given up the ghost. I'll also add that Cambridge Soundworks frequency response specs, when they can be found, are suspect.

Originally Posted by dogdoctor

Thanks for the reply, but could you be little more layman please. 2-way/3-way ?? - can that be found on the speakers. Woofers...given up "the ghost". I must be missing the joke. Everyday I come here I find I know less and less and need to spend more and more.

Originally Posted by dogdoctor

Thanks for the reply, but could you be little more layman please. 2-way/3-way ?? - can that be found on the speakers. Woofers...given up "the ghost". I must be missing the joke. Everyday I come here I find I know less and less and need to spend more and more.

Originally Posted by pepar

If your speakers have two drivers (speakers) in them and divide the range of frequencies between them - woofer/tweeter - then they are 2-way. Three drivers in them would make them 3-way - woofer/midrange/tweeter. CROSSOVERS are used to divvy up the sounds between the drivers. An "Audyssey" crossover of 250Hz for bass management purposes sounds like the woofers of a 3-way speaker are not operating.

Originally Posted by vtsteevo

It just seems very odd that the receiver set the crossover frequency for the surrounds and center very close to the lowest frequency response of the speakers based on their specs - yet for the front speakers, its way off.


Surrounds and Center can go as low as 100 HZ, and the receiver set those to 100 and 120. The fronts can go to 80 HZ, and the receiver set those to 200

Originally Posted by pepar

Keep in mind that Audyssey is measuring the in-room response. And some (most?) manufacturers are still using 80Hz as the "tipping point" for setting a speaker to LARGE. Having said that, I agree that that is strange.

edit: My M&K SS-150 side surrounds (dipole) are crossed at 70Hz while my M&K SS-150 rear surrounds (monopole) are crossed at 120Hz.

Originally Posted by dogdoctor

Thank you Gary and pepar. I think they are only 2-way speakers then. I don't think they are large enough to have 3 speakers in them. I'll check when I'm back home. As for Gary's point of changing the crossover without affect the Audessey. I knew that. But what does changing the crossover get you exactly? Like you said I think it sounds great now, to my personal taste of course, does changing the crossovers affect much to make a dramatice difference. I can always tweak things to my ear, but I would like to know intellectually what I'm listening for.

Originally Posted by vtsteevo

I moved all furniture out of the room and put the mic on a tripod for this as well.

Originally Posted by audyssey

It's very common to have surrounds go lower than one would expect when they are mounted up against the side wall. The wall baffle helps in reinforcing the bass coming from that speaker.

Chris

Originally Posted by pepar

Are the surround channels (on the source) bandwidth limited on the bottom end?

Originally Posted by vtsteevo

It just seems very odd that the receiver set the crossover frequency for the surrounds and center very close to the lowest frequency response of the speakers based on their specs - yet for the front speakers, its way off.


Surrounds and Center can go as low as 100 HZ, and the receiver set those to 100 and 120. The fronts can go to 80 HZ, and the receiver set those to 200

Both the surrounds and the fronts have the exact same 4" woofers, except the fronts have 4 of them while the surrounds have only 2!

I agree with what you are saying about room acoustics, but I would expect it to impact all speakers, not just the fronts. The Distance from surrounds to mic is 8 feet while distance from fronts to mic is 10. I moved all furniture out of the room and put the mic on a tripod for this as well.

I am happy with the sound, but I have nothing to compare it to... this is my first set of speakers/receiver and I want to make sure I didn't get defective speakers. Any help is appreciated.

Originally Posted by audyssey

As pepar said originally, it is very likely that the woofers in your speakers are not working. It doesn't matter if you have 2-way or 3-way speakers. 250 Hz is the highest bass management frequency that the AVR supports, so Audyssey reports anything above 250 Hz as 250 Hz as there would be no point in crossing over above that.

Set your front speakers to Large (to disable bass management) and play a bass track (in stereo mode with the sub turned off). If you don't hear any bass, then you will know that the woofers are blown.

Chris

Originally Posted by jazzbass

When would you want to set your front L/R speakers to large? I use two Infinity Beta 40's for the front and when I run Audyssey with my Denon 1909 it's sets them to large. I'm using a sub as well for a 5.1 total. Should I leave them set to large or should I go in and manually set them to small? Everything else seems to be set like I've read is typical.

Originally Posted by jazzbass

Anybody?

Originally Posted by Kal Rubinson

Could be because this very issue has been addressed several times in this thread already. The answer depends on the effective frequency response of the speakers in your room.