recommended crossover frequency for HC6

Discussion in 'Speakers & Subwoofers' started by Clemens, Aug 8, 2003.

  1. Clemens

    Clemens Extra

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    Hi,
    I'm wondering if anyone knows what the recommended crossover frequency for the HC6 is(on the subwoofer), and also
    if I set it to a certain number, say 100Hz, then do I also set the crossover setting of the receiver to 100Hz, or do they not necessarily have to be the same?
    Any help is appreciated [​IMG]
     
  2. Paul Chalk

    Paul Chalk Stunt Coordinator

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    I usually set the crossover on the sub a little lower than what my receiver is set at. This will avoid a hump at that frequency. For example, on my system, I have my receiver set at 60 Hz and my sub at around 45 - 50 Hz. If your receiver is set at 100 Hz, I would cut off the sub at around 90 Hz. Experiment around and see what sounds best to you.
     
  3. James Edward

    James Edward Supporting Actor

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    Clemens,

    If I understand your question correctly, and you are using a recent vintage receiver, its 'subwoofer out' jack, and a powered sub:

    ON THE SUB- Turn the crossover frequency to its highest point(usually around 160-200Hz). This effectively removes the sub's crossover from the signal path(a desirable thing).

    ON THE RECEIVER- The HC6 is a small speaker, so you should be setting the sub crossover to 100-120Hz, if you have the ability- a lot of receivers are fixed at 80Hz.

    What the above setup does is use the receiver's crossover, thus negating the need for the sub's crossover to be used.

    The HC6 is a fairly popular speaker here, so others I'm sure will add to these suggestions.
     
  4. Phil Iturralde

    Phil Iturralde Screenwriter

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    Based on Sound & Vision's Objective Benchmark by Tom Nousaine, ...

    AR HC6 - S&V FEB/MAR 2002 Issue

    Frequency Response
    HC6 front left/right.... 125 Hz to 20 kHz ±5.1 dB
    HC6 center.............. 110 Hz to 20 kHz ±4.2 dB
    HC6 surround............ 125 Hz to 20 kHz ±4.9 dB
    HC6 subwoofer........... 49 Hz to 130 Hz ±2.2 dB

    ... set the AV Receiver @ least to 120 Hz to get as close as possible to the Front & Surround 125 Hz usable falling lowest frequency (Front - 5.1 dB / Surround -4.9 dB) to minimize any frequency hole.

    Phil
     
  5. James Edward

    James Edward Supporting Actor

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    This is from AR's website on the HC6 L/R:

    Frequency Response: 80Hz - 20KHz ± 3dB

    It is amazing how optimistic speaker manufacturers can be.
    Clemens, if you look through your owner's manual and see the above figures, I would ignore them and use Phil's posting from S&V. They are far more likely to be objective and accurate.
     
  6. John Garcia

    John Garcia Executive Producer

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  7. Clemens

    Clemens Extra

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    btw, the sub's crossover is variable 50-150Hz, and the d712k(the receiver i bought, even though now i'm considering to switch it for a clearance priced SR500) has crossovers of 100, 150, or 200Hz.
    If I got the right information from the above posts, I would go with 150Hz on the sub and 100Hz or 150Hz on the receiver. Would 100Hz or 150Hz be better? 100 I'm guessing, since the subwoofer won't produce much past 135Hz?.
    Sorry that I'm asking and not trying, I am still waiting for my surge protector to arrive!!!
    It kills me to have all the beautiful equipment sitting in their boxes in the basement.
    Anyway once again, thanks for your helps.
     
  8. James Edward

    James Edward Supporting Actor

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    Yes- dial the sub's crossover as high as it will go.

    As far as the receiver crossover setting, you're probably better off using 150 Hz. I'll bet the ±2.2 dB is referring to the low end of the woofer's output- it probably easily reproduces up to at least 150 Hz. Also, a slight frequency dip is more desirable at 150 Hz than 100 Hz; a dip at 100 Hz is more likely to thin out the sound than at 150.

    And now the big BUT- definitely try both settings and see which you prefer.
     
  9. Skyler

    Skyler Stunt Coordinator

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    This is an excellent thread, very informative. I've been trying to dial in my HC6 with a Sony DA4ES. The system is in my bedroom. What's driving me CRAZY is the sub turning on & off! When there is a quiet passage, I hear a small pop / thump when it is not active, then on, then off, then on, then off, AARRGGHH! Can something be done?[​IMG]
     
  10. mike_frontier

    mike_frontier Supporting Actor

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    how would these speakers handle an room that is 14x11 @ 7.5' ceilings??
    Would the HC6 be too small speakers for this size room as I mentioned above??

    Thanks
     
  11. James Edward

    James Edward Supporting Actor

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    Mike,

    Here is a link to the review Phil got those specs from:

    S&V HC6
     
  12. Brian Fellmeth

    Brian Fellmeth Supporting Actor

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    Skyler :

    Does this sub have its own volume control ? If so, it may help to turn up the receiver's sub trim and make a corresponding decrease on the sub's volume control so that you stay calibrated. This will make the line level signal to the sub stronger and more likely to float above the automatic cutoff level.
     
  13. Greg Thomas

    Greg Thomas Second Unit

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  14. Clemens

    Clemens Extra

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  15. Greg Thomas

    Greg Thomas Second Unit

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  16. Skyler

    Skyler Stunt Coordinator

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    Well, dang. That is a master power rocker switch that is either OFF or ON/AUTO. Hitting off completely powers it off. It seems that adjusting the output level by 3 solved the auto cutoff problem. Not sure about the phase though, either 0 or 180. I have it at 0.
     
  17. John Garcia

    John Garcia Executive Producer

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    Since your mains will never overlap bass reproduction with your mains, phase should not be an issue.
     
  18. Greg Thomas

    Greg Thomas Second Unit

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    Skyler,

    I still think there's a little confusion. The Master Power switch should be in the on/auto position and there is a different switch called the "auto-switch" which should be set to off.

    But if you already got it working by boosting the output level on your receiver, never mind.
     
  19. Paul Chalk

    Paul Chalk Stunt Coordinator

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  20. Skyler

    Skyler Stunt Coordinator

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    There's no confusion. That switch does not exist, only the one I described. I actually have this system hooked up as we speak.
     

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