SH Spotlight SH Forum members: Are your speakers in correct phase?

Discussion in 'Music Corner' started by Steve Hoffman, Oct 25, 2004.

  1. Steve Hoffman

    Steve Hoffman Mastering Engineer Your Host Thread Starter

    Turn your amp around to the back, connect left speaker to "left" as marked. When you sit in the sweet spot, the left speaker is on your actual left.
     
  2. charlie W

    charlie W EMA Level 8

    Location:
    San Antonio

    The 1st Stereophile test CD has a pink noise track recorded both in stereo and mono that I find useful to check phasing.
     
  3. Emberglow

    Emberglow Forum Resident

    Location:
    Waterford, Ireland
    I learned many years ago that an amplifier must never be powered on "open circuit", i.e. without a load. Whenever I have to disconnect speakers, I always make sure that the amplifier is powered down. Does anyone know if this is still necessary with solid-state amps or is it just a habit carried over from using valve amps?
     
  4. Steve Hoffman

    Steve Hoffman Mastering Engineer Your Host Thread Starter

    Always necessary, just make a habit of it and you'll never blow an amp up.
     
  5. stereoptic

    stereoptic Anaglyphic GORT Staff

    Location:
    NY
    As you said, I made it a habit a long time ago whenever I have to do any plugging/unplugging into the amp (or CD player, turntable, etc.) I always power off everything.
     
  6. My amp is powered up 24/7 so I'm grateful it has a mute switch as it allows me to plug/unplug cables without turning the amp off.
     
  7. stereoptic

    stereoptic Anaglyphic GORT Staff

    Location:
    NY
    I could be wrong, but I don't think that the mute switch is going to help if you accidently cross two speaker wires and your amp does not have a short circuit cut off ability.
     
  8. mindblanking

    mindblanking The Bourbon King

    Location:
    Baltimore, MD
    Very necessary. Trust me.
     
  9. That is true but I always check connections carefully before I turn off the mute switch. :)
     
    stereoptic likes this.
  10. Steve Hoffman

    Steve Hoffman Mastering Engineer Your Host Thread Starter

    Most audiophile speakers are not dedicated, no. The ones that are would mention it in the instructions.
     
    marcfeld69 likes this.
  11. Steve Hoffman

    Steve Hoffman Mastering Engineer Your Host Thread Starter

  12. Mmmark

    Mmmark Forum Resident

    Location:
    Canada
    • Was going nuts chasing wires a few weeks ago until I realized that one of my speakers was accidentally cross-wired internally, i.e., the connections on the inside of the speaker going to the clips on the back were flipped. As soon as I reversed the wires to 'un-cross' the connection from the clips to the amp everything fell into place.
    • I also found some phase test audio clips on YouTube to be extremely helpful, and frankly a little more obvious than playing a mono recording.
     
  13. mikaal

    mikaal Sociopathic Nice Guy

    Which, when you think about it is a safe practice with anything electrical.o_O
     
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  14. jupiterboy

    jupiterboy Forum Residue

    Location:
    Buffalo, NY
    Some speaker designers do wire the tweeter out of phase.
     
  15. Mmmark

    Mmmark Forum Resident

    Location:
    Canada
    No, this was the main driver. I realized it sounded 'off' but was confused because the wiring looked fine. As soon as I flipped the one set of wires though, the sound came into phase.
     
  16. Steve Hoffman

    Steve Hoffman Mastering Engineer Your Host Thread Starter

    Woofers sometimes, too.
     

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