SDA I sig's/non-common ground amp

mescko
mescko Posts: 7
edited January 2010 in Vintage Speakers
Hi all. I recently picked up a DBX BX-3 amp. It's a 4-channel amp that can be bridged into 3 channels or two. I presume that when in bridegd mode it is not common-ground (I seem to remember that the term "BTL" meant not common-ground). After looking through the threads and schematic regarding making up the cable, all the references are to the pin/blade configuration. Does this apply to my blade/blade also? Obviously I'm not going to hook then up 'til I'm squared away, but I'm itching to do so, I've never really "opened 'em up", but with this amp I really want to 'see what it'll do'. What do you experts say?

Scott
Post edited by mescko on
· Share on FacebookShare on Twitter

Comments

  • stubby
    stubby Posts: 723
    edited January 2010
    No blade/blade speakers can be hooked up to non common ground amps. Even with the AI-1 style IC. Make sure what you have (amp) is common ground even in stereo mode. Some are dual mono. BTW, I am not an expert, I didn't even stay in a Holliday Inn Express last night.

    stubby
    SRS 3.1TL
    Harman Kardon Citation 5.1
    Anthem AVM2



    · Share on FacebookShare on Twitter
  • mescko
    mescko Posts: 7
    edited January 2010
    The issue here is it is not common ground if it is run in 2 channel mode. If it is run in its 4 channel mode, it would be, but I could only run two of the channels (only 125 wpc, 2 channel BTL is 300 wpc.). In other words, It can't be done in 2 channel mode, period? FUDGE!
    · Share on FacebookShare on Twitter
  • Schurkey
    Schurkey Posts: 2,104
    edited January 2010
    mescko wrote: »
    The issue here is it is not common ground if it is run in 2 channel mode.
    Bridged amps cannot be common-ground, and are therefore not compatible with blade/blade SDAs.
    mescko wrote: »
    If it is run in its 4 channel mode, it would be,
    Best to verify that...
    · Share on FacebookShare on Twitter