Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 8 of 8
  1. #1

    Member Sales Rating: (0)

    Join Date
    Feb 2005
    Posts
    32

    Default calibrating 2 different subs

    I tried to calibrate my subs using the receivers recommendations ok. turn volume to half way ok. turn sub xover up all the way? I have two different subs. 1 knob goes from left 40 hz to right 120 hz. the other knob from left 120 hz to right 40 hz. I'm moving both subs to the front and have to recalibrate them. any suggestions. thanx

  2. #2

    Member Sales Rating: (0)

    Join Date
    Jul 2011
    Location
    SW Ohio
    Posts
    2,191

    Default

    Quote Originally Posted by johnny42 View Post
    I tried to calibrate my subs using the receivers recommendations ok. turn volume to half way ok. turn sub xover up all the way? I have two different subs. 1 knob goes from left 40 hz to right 120 hz. the other knob from left 120 hz to right 40 hz. I'm moving both subs to the front and have to recalibrate them. any suggestions. thanx
    Are they both the same size and power rating? Sounds like trial and error for a while and what sounds best to you.
    "My wife likes my rig......HAHAHAHAHAHAHAHAH!"


    B&W CDM 1NT; B&W CDM CNT; Infinity us 1; Velodyne DEQ-8 x2; Pio Elite VSX-23; Sony SCD-CE595 SACD, Marantz CD5001, [/COLOR]

  3. #3

    Member Sales Rating: (0)

    Join Date
    Feb 2005
    Posts
    32

    Default sub hz

    at this point I'm confused. is more bass 40 hz or 120 hz

  4. #4

    Member Sales Rating: (0)

    Join Date
    Feb 2004
    Posts
    692

    Default

    What receiver are you using?

    If you have Audyssey Sub HT EQ, then position the subs and run the auto calibration.

    Otherwise, after positioning the subs and setting the crossover, you need to set the phase of each sub (usually play a test tone near the crossover frequency and chose the phase with the highest volume). You can volume match and eq each sub separately but it is not always necessary (and you may not have the equipment to do it). Without EQing first, volume matching is imperfect, so doing a quick volume matching by ear can be fine if you don't have equipment to do more.
    Then you can have the receiver eq the two subs together as one.

    I am assuming that you can set your crossover in the receiver. If so, you can bypass the crossover in the subs. Usually the Lfe in will bypass the crossover (if not, you can set the crossover to the max.)

    Trial and error without good measurement equipment and a lot of time will usually lead to poor results. This likely why a lot of people don't like subs for music listening.

  5. #5

    Member Sales Rating: (0)

    Join Date
    Feb 2005
    Posts
    32

    Default calibrating subs

    thanx for your input. I'm using YPAO, the Yamaha auto calibration. but it could be audyssey or audyssey xt32. the point is trying to get the subs setting right before doing the calibrating.

  6. #6

    Member Sales Rating: (0)

    Join Date
    Feb 2004
    Posts
    692

    Default

    The crossover on the sub is the low pass for the sub, so the sub will play the frequencies below the crossover setting. (In reality it is a gradual cut point where what the sub plays is 3 dB down at the crossover and the out decreases rapidly above the crossover). Since you are using the crossover in your AVR, you want to bypass on the crossover on your subs. What subs are you using?

    The main idea is that you need to calibrate each sub separately and then calibrate them together as one sub. Most auto-EQ solutions only do the calibrate them together as one sub step. The reason I specifically mentioned Audyssey SUB HT EQ (available on almost all Audyssey XT32 AVRs) is that it is the one EQ solution that does both step (calibrates the subs separataly and the together as one).

    If you are going to use, YPAO or another such EQ solution, the most important part of calibrating the subs individually is to get the phasing right. After you get the phase set for each subwoofer, the you can run YPAO. Also, phase is a function of position relative to the other speakers, so you must finalize your position first.

    I use double subwoofers and have played around with doing some of the calibration of the separate subs. I, though, have been very happy with the Audyssey solution.

  7. #7

    Member Sales Rating: (31)

    Join Date
    Feb 2007
    Location
    Long Island
    Posts
    14,790

    Default

    You need to pick up a SPL meter and check out Room EQ Wizard: http://www.hometheatershack.com/forums/rew-forum/
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

  8. #8

    Member Sales Rating: (0)

    Join Date
    Feb 2005
    Posts
    32

    Default thanx for the suggestions

    I ran the auto set up again with two front subs. not really happy with the outcome. the results are showing the pre lowering the volume. I manually set it higher a bit and the rooloff was better. GREAT POINT = calibrate 1 sub at a time. that's my next move. little by little I'm getting better at adjusting the volume and hz. Happy New Year.....................................

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. Need help calibrating my system
    By cascius in forum Electronics
    Replies: 7
    Last Post: 09-29-2012, 06:05 AM
  2. Replies: 2
    Last Post: 01-07-2012, 12:09 PM
  3. Calibrating 2.1?
    By mdaudioguy in forum 2 Channel Audio
    Replies: 0
    Last Post: 04-18-2010, 09:09 PM
  4. calibrating sub
    By klove2 in forum Subwoofer Hookup & Bass Management
    Replies: 5
    Last Post: 04-21-2005, 07:42 AM
  5. Calibrating question......again
    By Meeks32 in forum Speakers
    Replies: 2
    Last Post: 01-24-2005, 11:17 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts