Crossover frequency

I have an Onkyo TXNR807 receiver - Does Audyssey automatically set the crossover frequency or do I need to do that as part of the speaker setup.

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    Darryl

    Thanks Chris!

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    Daron

    Hey Chris, I have a question about my crossover frequency setting that Audyssey has adjusted for me but it doesnt sound right. So, I have a Denon AVR 888 Receiver, pair of front klipsch f-10 tower speakers (bi-wired), sub-10 subwoofer, Precision Acoustic centre & surround ceiling speakers. I ran the audyessy through the Denon and got 120Hz fronts, 40Hz centre, 60Hz surround and 80Hz LFE. I also set my sub to low pass 120Hz. Do these settings sound correct? For some reason I don't think my f-10 towers should be set at 120Hz. Do you have any input on this? Thanks                          

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    Theodore Kypriotis

    Hello to all, Chris i could use your help with my new Onkyo 609.

    My current setup is Front : B&W 603 S2  | Center : B&W CC6 S1 | Rear : Logitech z5500 satellites | Sub : Logitech z5500.

    I know my setup is a little bit strange, but i can't change much right now. In order to use the sub with my Onkyo, i am connecting it with my z5500 digital panel and that handles the volume and the low frequency.

    When i run the Audyssey, it sets all my speakers to -db. The sub was placed at 120Hz, and my mains if i remember correctly at 40Hz. To tell you the truth, i don't think that the sub is working well with the Onkyo, but this propably is my panel's fault.

    when i tried to listen to some music - movies, the sound was too low. so i changed the speakers to 0db, my rears to +1 +2. And finally i moved all the speakers to 80Hz.

    The sound wasn't that loud still, and then i moved the IntelliVolume to +6.

    The result i am getting from movies is fantastic, but with one big problem. i am not getting any BOOM sound experience. I tried Transformers 3 where optimus speaks at the beginning, and the vocals were terrible. Also when there are explosions, i couldn't get any bass to "hit" me and make the movie come to life. Other than that, it is great. I tried Stealth which has flight combat and i was amazed.

     

    i am attaching a picture of my room, so that you can understand my place. Please ignore the rear speakers. they are not what i have.

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    Audyssey Labs

    @Daron: the roll off frequency of the speakers depends on where they are placed relative to walls and corners. It's not unusual to see higher than theoretical roll off frequencies. That's the whole point of measuring!

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    Audyssey Labs

    @Theodore: the speaker levels are set to (1) make them play at the same level as each other and (2) to play at film reference when the master volume of the AVR is at 0 dB. So you are seeing relative level numbers to achieve these goals.  There is nothing wrong with negative dB settings for each speaker. They depend on the listening distance and sensitivity of the speaker.

    Connecting the sub to anything but the sub out of Onkyo is a bad idea...

    Also, please keep in mind that the purpose of Audyssey is not to deliver "boom".  It is to measure the acoustical problems of your room and remove them.  

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    Theodore Kypriotis

    It is not possible to connect my Onkyo directly to the sub, since my z5500 doesn't support it. I agree that it is a bad idea, but i need it since i am also using it on my PC setup which is in the same room.

    Other than that, i am still trying to find where is the "live" sound when it comes to explosions

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    Audyssey Labs

    What output of the Onkyo is the sub connected to? It sounds like its not receiving the bass managed signal from the decoded content.

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    Theodore Kypriotis

    i have connected the RCA cable on Onkyo's sub exit, and then i am converting the RCA to 3,5 Audio Jack which i place at the back of z-5500 digital panel at the Center/Sub input. I set the input to 6 Channel so that everything goes to where it should, and my sub starts playing.

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    javier zubiate

    hi chris,i am new to audyssey and just finished setting up my home theater and could use some advice.I have a denon 1712 receiver and my speakers are polk audio rm705 series(5 sattelites and a powered sub).I did the callibration and came out with these settings,front speakers @ 150hz,center @ 150hz and surrounds @120hz as well as the sub.It sounds good but i feel like it could sound better,could you recomend anything that i might be able to do to increase the performance of my set up.any help is very much appreciated :)

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    Audyssey Labs

    Hi Javier,

    I won't be able to do better than Audyssey did when measuring your room.  That's the whole point of measuring!  If you followed the mic placement instructions here, then you are set to go.

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    Steve J

    Hi Steve, I'm new to this thread. I have NAD785 receiver and Paradigm Studio reference speakers.  When I set –30 dBFS test signal in my Front speakers, sound meter doesn't read 75db. Is this 75db test is only for sub woofer.  

    For some reason my speakers are not loud enough. I'm not sure this is something to do with Speakers or receiver setup. I have to crank it up more than half way (about -20) to get  decent sound.  Any idea what's going with my system.  Please advise.  Thanks

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    Audyssey Labs

    What does the meter read?  All speakers and sub should be close to 75 dB SPL for –30 dBFS test signal.  If it's a couple of dB off that could be because of meter calibration.

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    Steve J

    Hi Chris,

    Thanks for the prompt reply. 

    I've measured my front speaker sound level.

    • –30 dBFS test signal it shows  55 dB SPL
    • –20 dBFS test signal it shows  66 dB SPL

     

     

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    Audyssey Labs

    Hi Steve,

    Are you using a test disc for this? If so, then you have to set the NAD volume control to 0 dB to get it to reference level.  

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    Steve J

    No, I'm using receiver's  internal signal.  

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    Audyssey Labs

    Hmmm. So how are you testing with –20 dBFS? The internal signal is only –30 dBFS. In any case, something is seriously wrong if your levels are 20 dB off from reference.  What speaker level settings did Audyssey recommend after the calibration?

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    Steve J

    May be I don't understand what this -20dBFS (or -30) means.  What I did was use the remote and increase the volume until the front panel shows -30db.  Then I use Radio shack SPL meter at the listening position and get the readings. Am i doing the right thing.

     

     

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    Steve J

    Hi Chris, I have attached couple of snap shots of my receiver setup. Altogether there are 5 files    

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    Steve J

    Please discard the IMAG0225.jgp. Other 4 snap shot show the current setup  

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    Steve J

    Chris, When I perform the  Audyssey calibration do i have to set the NAD volume control to certain level (0db ???)

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    Audyssey Labs

    Hi Steve,

    This all looks right.  Does the volume of the test signal change as you adjust the master volume control? It's not supposed to, but if it does the master volume should be set to 0 dB when you test with the SPL meter.

    It doesn't matter where it is set during the Audyssey measurements.

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    Rob Brooks

    Steve.

    When you first turn on the internal Test Signal, what level does the AVR have the volume set at?  it "should be set at 0dB (reference)

    that is where you need to leave it set. then adjust your trims to get 75dB from each channel

    my Denon unit defaults the volume control to 0dB

    i can adjust it higher or lower if i want. but you don;t want to do that.

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    Steve Nguyen

    Hi Chris - Very informative thread.  My setup is a 4.1 system using an 809 with Magnepan MC1 fronts, MMGW rears, and an older THX sub.  After calibration the settings are 150Hz for the all fourn Maggies.  This seems a bit odd given that I have the fronts on a wall exactly at the height recommended Magnepan, no carpeting and not tables.  Sooo, I reset the crossover to 80 fronts, 100 rear, and the LFE 10 100.  Magnepan specs the MC1's to 80Hz and the MMGW's to 100Hz.  My sub theoretically only goes to 120Hz.

    I find the sound better after changing back, but I don't understand enough to know if I'm negating the benefits of the Audyssey technology. 

    Steve

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    Steve J

    Hi Rob, 

    When the test signal first turn on the AVR volume is not 0dB.  It shows where ever it left.

    per your & Christ's instructions I've adjusted the Master volume to 0 dB and adjusted the trims of all the channels to get 75dB.  

    Afterwards when I listening to actual sound (TV or Blue ray) it's really low. Until up to -33 dB on the AVR I cannot hear anything.  I have to crank it up to -20 dB and upwards to get a decent sound.    

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    Steve Nguyen

    I think I answered my own question.  I re-calibrated using some information about planar speakers and Audyssey I found on AVSforum, and am pretty happy thus far.  The crossovers are STILL set to 150Hz all 'round and 120Hz LFE.  I subsequently changed the output in Dolby TrueHD and DTS-HD MA to the -10dB setting and then manually trim the sub's output back to 0dB when listening to multi-ch analog (my DVD-Audio disks) and it sounds very good and balanced.

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    Rob Brooks

    QUOTE"I have to crank it up to -20 dB and upwards to get a decent sound. "

    That is correct
    just remember for a second that the Reverence Volume Level (0dB on the volume control) is 75dB at your listening position.

    if you were to sit in your house with all your TV's and radio's turned off and get out your dB meter, it's probably reading around 40-45dB
    simply from outside noise, traffic, wind, birds, PC fans, fridge, etc.

    so simply to overcome the ambient noise you need have your volume control up to at least -30dB.

    Normal conversational speech of another person at 3feet is about 60-65dB so watching TV with the volume control set at at -10dB to have a normal volume level is not out of the ordinary.

    my Denon is programmed to turn on with the Master Volume set at -30dB

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    haroon khader

    hi chris ,

     I am having john barrel ht 1000vr home theater system 5.1 channel .. thr subwoofer rms is 200 and 30x5 rms speakers ,snr is 70 db , frequency response is 40hz to 20 khz . i want to know is it a good system ?? or need to upgrade ??

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    Audyssey Labs

    Hi Haroon,

    I can't really give specific recommendations about equipment.  

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    Jim

    Chris,

    One question. You stated not to reduce the crossover frequency because Audyssey won't apply filters. Also with a sub all speakers should be set as small. My front speakers detect as large and the crossover is set to full band. So if I reduce this does that mean no filter will be applied to those speakers?

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    Audyssey Labs

    Hi Jim,

    I am not sure what you mean by "reduce".  Full Band is Onkyo's term for Large.  What it means is: "don't send bass from these speakers to the subwoofer".  If you want bass to be handled by the sub then you should set a crossover for these speakers.  I suggest 60 or 80 Hz.

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