Is this safe?

Discussion in 'Amps and Cabs [BG]' started by Frarf, May 26, 2017.

  1. Frarf


    May 26, 2017
    Maybe someone can answer my question. I have been looking for a right angle speaker cable and some searching lead me to a forum where someone suggested this. Monoprice 109447 3-Feet Premier Series 1/4-Inch Male Right Angle to Male Right Angle 16AWG Cable: Home Audio & Theater
    Description reads unbalanced but when received cable says balanced 16 awg shielded on the side. This would be used to connect my amp to cab that is 500w. I opened it up and it looks like speaker wire but they're are both soldered to the tip and the shield (?) I guess, is soldered to the ring. I don't know a lot about this stuff and am confused. Is this safe to use? 20170526_221124.jpg
  2. I wouldn't use it. Buy some lamp cord and solder it onto the salvaged jacks, if you have no use for a 3ft patch cable.
  3. guy n. cognito

    guy n. cognito Secret Agent Member

    Dec 28, 2005
    Nashville, TN
    Why do you need right angle connectors for an amp to cabinet connection?
  4. Al Kraft

    Al Kraft Supporting Member

    May 2, 2016
    Northern Virginia
    There are only a few unique applications I am aware of where shielded speaker cables are appropriate. You can check with agedhorse for the specific engineering reasons, but my gut is telling me that you should not even consider using a shielded cable for speaker level signals on typical bass and/or PA gear.

    There are line and instrument level signal cables where they run two core wires and a shield as opposed to a single wire and a shield. Depending on your application and the need to have the shield only connected to ground at one end (usually the end other than the instrument), these kind of designs might be useful, but not for use as a speaker cable regardless of the size/gauge of the wires.

    EDIT: If I recall correctly the primary concern with using shielded speaker cables in applications where their use was not part of the amp design equation is that the added capacitance to the system load can create problems for the amplifier depending on the stability margin and other attributes of the design. In other words, while it might work okay, it's a chance I wouldn't take.
    Last edited: May 27, 2017
  5. This is an instrument/patch cable. It says so in the link you provided.
  6. Roland GR 88

    Roland GR 88 Commercial User

    Sep 16, 2013
    Ontario Canada
    Retail store manager
    Mojotone, Lava cable, Redco & Spectraflex.
  7. Welcome to TalkBass.

    Sorry you got the wrong cable. This is one of the many reasons the Speakon connector is great, it prevents this confusion.
    As The Old Garage-Bander said, THIS IS NOT A SPEAKER CABLE. DO NOT USE IT AS SUCH.
    From your link
    • Connect your musical instruments and effects processors with this Premium 1/4" TS Patch Cable with 90-degree connectors from Monoprice!
    Make sure you get what says speaker cable before purchasing, also the words Speaker Cable will be printed on the cable.
    Feel free to ask anything you are unsure of. It is better to ask is this ok? than to ask why did this smoke?
  8. seamonkey


    Aug 6, 2004
    It is perfectly safe. It is 16 AWG which is appropriate for amps that use 1/4" jacks.
    Shielding is not needed for speakers, it also doesn't hurt.
    Light gauge wire is what hurts.
  9. Al Kraft

    Al Kraft Supporting Member

    May 2, 2016
    Northern Virginia
    When amps are in the hundreds to thousands of dollars neighborhood and cables are in the tens of dollars neighborhood, it makes no sense to use the wrong cable for your speaker connection. It might work okay, but then it could cause a problem...$10-20 (or less) gets you a 100% "no problems guaranteed" solution.
    Old Garage-Bander likes this.
  10. Some amps do not reference to ground that which would be the shield side of this cable.
    That means you could have exposed voltages on the metal parts of this cable.
    If you use it for speakers, do not touch it while the amp is on.

    Anytime you use 1/4" connectors for speaker cables, you should use ones that have insulated or plastic shells. This is not a problem if the cable is used as an instrument/patch cable.

    FYI. Balanced cables normally have two inner conductors and the 1/4" connector would have to be a 3 conductor (aka Tip/Ring/Sleeve, aka stereo) connector. The cable in the link is a 2 conductor, Tip/Sleeve, mono connector type. So it is unbalanced.

    Balanced speaker outputs, those not having a ground connection on one side will still be balanced even if you use what is normally considered an unbalanced cable.

    Bottom line... you really need to pay attention to the circuits involved and the cables being used. If you deviate from the instruction manual, be sure you have a good grasp of all of this.
    Last edited: May 27, 2017
  11. It may be 16 AWG but it is an instrument cable. 16 to tip shield to sleeve, not 16 tip and 16 to sleeve like speaker cable.
    Use the correct cable.
    Helix and guy n. cognito like this.
  12. edencab


    Aug 14, 2013
    Toronto, On
    Last edited: May 27, 2017
    guy n. cognito likes this.
  13. seamonkey


    Aug 6, 2004
    popgadget and ficelles like this.
  14. seamonkey likes this.
  15. I think the amps forum answering a technical query and being ignored completely could come to be known as being Frarfed.