The graph is quite good considering that it is being done via Auto EQ and SR6003.

jchong,

I have got the answers :


Q1. The dip at 40Hz (must be room nodes) was being rectified to a certain extent; +10dB.

A1 : Yes, it's a room mode. Please try to move the listening position forward or rearward. This is an axial mode and you should be able to move out of it within 2-3 feet in either direction.



Q2: Is there a limit that the AS-EEQ1 can boost; like around 10 dB. Some other devices are very limited to below 6 dB or less.

A2 : Yes, there is a limit; it's 9 dB.


Q3: Does AS-EQ1 equalizes below 20 Hz? I notice the portion below 20 Hz looks about the same as the 'before'. If yes, then what could be the reason of this graph.

A3: Yes, the AS-EQ1 will equalize to 6 Hz with the current firmware/software. Make sure to set your room gain control to Bypass. Also make sure any THX Ultra II boundary gain compensation is set to off/no, and all your speakers are set to Small with 60 Hz for the mains, and 80 Hz for all others. Something else is causing a premature roll-off from 20-15 Hz. The subwoofer should be flat to 15 Hz before roll-off. Move the listening position and try it again.


On the above, I did wrongly set my speakers since the front is being set as full range (Large) and 40Hz for center and 60Hz for surr. Lesson learned

This post has been edited by htkaki: Sep 30 2009, 08:27 AM

AS-EQ1 really looks like a class act. I believe more so for people trying to equalize 2 subs..

I will do the calibration againto see how the new FR graph will look like. Hopefully that we can see a FR graph of 2 diff makes & models by Sunday.

sorry, maybe my reply not clear.
i meant when i run audyssey for 3 times, the setting for each and every speakers are not the same for 3 times.
for instance,

first run: center at +1.5db
second run: center at +1db
third run: center at -1.5db

so as for the rest of the speakers setting.
so everytime got some diff abt the surround effect that surrounding the listening area.

ps: audyssey eq actually quite sensitive, setting tat has been done if simply adjust manually again, then it might turn the audyssey off and need to redo the time consuming process again. quite fade up wif it.

Maybe the background noises were different each time you ran it.

Pretty close results. This was based on how many points (8 points). The reason u get slightly different results is due to different placement of mics each time. I believe the Audyssey mic is +/- 1dB and ur readings are close to that.

Don't worry too much abt it. Is the subwoofer trim also +/- 2dB. If yes, looks good and shd be ok. If u can check with a frequency response curve, it would be best.

perhaps

---

Added on September 30, 2009, 6:32 pmmine low end 1, so 6 points only..
FL,FR,centre almost +/- 2-2.5db
sub forgotten, but it sets the distance to 7.5 meters away. in fact, only 2m++. but manual says normal since it has built in circuit that may cause tis
surr some time can get +3.5db, and it is rite abv sitting area.

how to check FR curve? wat equipment needed and price?

This post has been edited by cougar richard: Sep 30 2009, 06:32 PM

Check ur current post Audyssey sub trim and let me know. The distance for the sub not tallying with actual is ok. The sub generates the low frequencies. What Audyssey is doing by setting the distance setting further than the actual is in fact adding a delay to the sub so that all the frequencies arrive at ur ear (1st measurement position) at the same time. You probably have some parallel walls or something that are causing reflections from the subs to arrive at the primary seating position faster than the rest of the frequencies. Is the sub close to a wall?

How far off from actual are the distances of the fronts? What is the cutoffs that were applied for the fronts?

anfieldude, that means we should use the Audyssey sub distance rather than actual distance? for 5.1 level matching using SPL meter, should i use the Audyssey sub distance or actual sub distance from the listening position? still blur blur

I'm sorry, I don't understand ur question.

I would say use the Audyssey sub distance and not the actual sub distance.

Level matching ensure that at the listening position the speaker outputs are balanced and matched for output.

The distance setting is to calculate the delay that is to be added induced by room environment.

This is unusual. When I run Audyssey (using 3 positions for quick runs) the results are quite consistent from run to run.

Maybe as others have said, your ambient noise was different from run to run. Were your mic positions the same?

Me too
I used it for 6 positions, the results are quite consistent
btw, different height of mic for each position will affect the result also right?

Possibly. If you have a high back chair and your mic is lower than the back it can affect the results. In those cases you should set the mic higher than the back of the chair.

Otherwise generally the mic should be put at ear height.

I put it at ear height and done 32 positions (wt AS-EQ1)

anyone else measured their room response?

Hopefully to get mine done this weekend when Htkaki drops by with AS EQ 1:P

I posted Ron's room response in the subwoofer thread.

Hopefully, there will be more FR graphs in coming weeks, if you know what I mean

Anfieldude, I might send the AS-EQ1 to one of my cust in PG first for him to try out. Then, you guys turn to lay hands on it. Ok for you all?

Can anyone ajar how to read the graph?

a for apple
b for ball..