1. Join Now

    AVForums.com uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Strata 5 - Settings Explained

Discussion in 'Subwoofers' started by mremulator, Sep 26, 2005.

  1. mremulator

    mremulator
    Active Member

    Joined:
    Sep 19, 2005
    Messages:
    1,085
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    51
    Location:
    Surrey
    Ratings:
    +67
    Today, I have spent some considerable time on the phone/Email to REL. I would like to share what I have learnt about my STRATA 5 that is not covered by the user manual. This may or may not be common knowledge, however, I could not find any answers in the forums.

    1) The frequency adjustment is for the hi-level input only and does not affect the LFE input in any way. So the LFE input is not filtered through the sub's crossover regardless of the setting.
    2) The frequency should generally be set -3DB or -4DB below the "roll off" frequency of your front speakers when using the hi-level Neutrik connector. In the manual it says "usually somewhere between 20Hz and 33Hz with most loudspeakers", however, my KEF Q35's do not "roll off until around 45Hz.
    3) The slam/depth adjustment is for the LFE input only and does not affect the hi-level input in any way.
    4) If you have your front speakers bi-amped then you connect the neutrik connector in the normal way. However, make sure that you connect the sub to the LF speaker terminals on your receiver (which are generally FR & FL anyway)

    This may help someone. :)
     
  2. Timbo21

    Timbo21
    Well-known Member

    Joined:
    Dec 23, 2004
    Messages:
    4,470
    Products Owned:
    2
    Products Wanted:
    2
    Trophy Points:
    106
    Location:
    London
    Ratings:
    +263
    That's Interesting. I didn't know that.

    Do you mean the frequency should be set at the -3db roll off point of your speakers? Setting frequency -3db or -4db below the "roll off" frequency
    doesn't make sense.

    The -3db frequency on my 11L's is 55Hz. I actually found setting the frequency slightly higher @ 62Hz gave the best seemless integration with my speakers. Setting it exactly @ 55hz left a bit of a hole.

    T.
     
  3. mremulator

    mremulator
    Active Member

    Joined:
    Sep 19, 2005
    Messages:
    1,085
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    51
    Location:
    Surrey
    Ratings:
    +67
    It depends on the room acoustics and your speakers. My KEF Q35's 'start' to roll off at 45Hz but actually play below 45Hz.So 42Hz gave me the best integration. The sub takes over from there... makes sense I guess.
     
  4. Nimby

    Nimby
    Member

    Joined:
    Jan 27, 2004
    Messages:
    9,198
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    136
    Location:
    The Danish Bacon Factory
    Ratings:
    +669
    The reason you set the sub at 3dB at (or a few Hz below) the roll off point of your speakers is so that they are both giving out equal acoustic power at the crossover point. In a perfect world this might be true. But your listening room is unlikely to be perfect. There might be a peak or a trough in the response of your sub, or your speakers, or all of them. Hard and fast rules don't often work as you've discovered for yourselves. But such rules are a certainly a good starting point for further experimentation.

    Here's a diagram representing the roll-off point of an idealised sub and speakers which I borrowed from Google. Ignore the lower diagram.

    Nimby
     

    Attached Files:

  5. Knyght_byte

    Knyght_byte
    Well-known Member

    Joined:
    Nov 4, 2004
    Messages:
    11,024
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    136
    Location:
    Harrow, NW London
    Ratings:
    +599
    hmm..tbh some of the points you made i thought were covered in the manual? altho to confess i didnt actually read the Strata 5 one except for the remote control commands.....i already owned a Quake so knew the stuff like the freq adjustment only being for hi-level and slam/depth only being LFE as well from the Quake manual.....but there isnt a world of difference between the two as they use similar control systems, no coarse knobs or suchlike

    as for the freq roll off, i set mine to the exact freq limit that my Monitor Audio Silver S6's are specified as on paper...and its lovely, perfect handover, have tried a few hz each way and it doesnt get better......
     

Share This Page

Loading...