8ohm Fronts with 4ohm Surrounds?

Discussion in 'Speakers & Subwoofers' started by Richard Little, Apr 12, 2004.

  1. Richard Little

    Richard Little Stunt Coordinator

    Joined:
    Jun 20, 2003
    Messages:
    105
    Likes Received:
    0
    Trophy Points:
    0
    Can I cheap out for a little while by using 8ohm mains and center while at the same time drive 4ohm surrounds on the same reciever (Elite 45TX). Will this lead to problems or dammage the reciever?
     
  2. Andy Goldstein

    Andy Goldstein Stunt Coordinator

    Joined:
    May 6, 2003
    Messages:
    214
    Likes Received:
    0
    Trophy Points:
    0
    as long as each channel of the amp can handle the load you are presenting to it, it will be fine. mixing impedances is ok. i'm running doubled advents across the front, which give 4 ohms nominal per channel (3 ohm minimum) and 8 ohm speakers in the rear. no problems.

    ag.
     
  3. John F. Palacio

    John F. Palacio Supporting Actor

    Joined:
    Jan 6, 2002
    Messages:
    575
    Likes Received:
    0
    Trophy Points:
    0


    As long as the receiver can handle 4 ohm loads you'll be fine.
     
  4. BenK

    BenK Stunt Coordinator

    Joined:
    Aug 27, 2002
    Messages:
    205
    Likes Received:
    0
    Trophy Points:
    0
    Would the "ohm switch" need to be changed to accomodate the 4 ohm surrounds or is that just if the main l/r speakers are less than 8 ohms?
     
  5. Cees Alons

    Cees Alons Moderator
    Moderator

    Joined:
    Jul 31, 1997
    Messages:
    19,460
    Likes Received:
    338
    Trophy Points:
    9,110
    Real Name:
    Cees Alons
    If all channels can be switched separately, set each to the actual impedance of the connected drivers. If there's only one master switch, set it to the impedance of the fronts & center.

    The rationale here being, that the surrounds will seldom get as much sound power to process as the mains.


    Cees
     
  6. BenK

    BenK Stunt Coordinator

    Joined:
    Aug 27, 2002
    Messages:
    205
    Likes Received:
    0
    Trophy Points:
    0
    So with that same rationale what if the mains are 8 ohms and the center is 6 ohm with one master ohm switch? Should it be kept on the default 8-16 ohms? I also have a Pioneer Elite and I'm curious about this. My manual recommends nothing less than 6 ohms but not about how to configure the switch for mixed speakers?
     
  7. Cees Alons

    Cees Alons Moderator
    Moderator

    Joined:
    Jul 31, 1997
    Messages:
    19,460
    Likes Received:
    338
    Trophy Points:
    9,110
    Real Name:
    Cees Alons
    What are the exact settings to choose from?

    In principle, I would still choose 8 Ohms in your case, but 6 Ohms wouldn't be too bad (if it exists as an option).

    Cees
     
  8. BenK

    BenK Stunt Coordinator

    Joined:
    Aug 27, 2002
    Messages:
    205
    Likes Received:
    0
    Trophy Points:
    0
    Those are the exact settings to choose from. 8ohms and 6 ohms. So it sounds like either would be fine. Thanks Cees.
     
  9. Cees Alons

    Cees Alons Moderator
    Moderator

    Joined:
    Jul 31, 1997
    Messages:
    19,460
    Likes Received:
    338
    Trophy Points:
    9,110
    Real Name:
    Cees Alons

Share This Page