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Any info..JBL Cabaret 4691B?

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  • Any info..JBL Cabaret 4691B?

    Any one have any idea how the switches, knobs and inputs on the back of these work? Trying to figure them out.



    Cheers,
    B

  • #2
    Check out the Link.

    http://www.jblproservice.com/navigation/Cabaret%20Series.html

    Comment


    • #3
      Thanks for the link! ...but I'm still confused on the inputs and how they work and what not... :?

      Cheers,
      B

      Comment


      • #4
        I have some cabaret series stuff as well.. the 1/4" jack that doesn't have a cover is a Full range input. The others are Bi-AMP. on my 4699's there's a thrid as well. but HTe internal Xovers on these actually sound really good.

        Todd A.
        My Rig:

        EAW LA325's (2)
        EAW LA400's (4)
        QSC PLX 3402 (2)
        QSC PL1.8
        QSC RMX 2450
        Ashly ProTea 3.24c
        Ashly ProTea 4.24G
        EAW LA212 Monitors
        JBL PRX-512M Monitors
        Whole Lotta Cables

        Comment


        • #5
          So.. when that switch is down for full range... does that mean the covered jack to the right (external speaker out) can be used to daisey chain 2 of them together?

          Cheers,
          B

          Comment


          • #6
            So.. when that switch is down for full range... does that mean the covered jack to the right (external speaker out) can be used to daisey chain 2 of them together?

            Cheers,
            B


            Yes.
            -------------------------------------------------------------------------------------------------------------------------------------------------------------------
            Former product development engineer: Genz Benz, a KMC Music/FMIC/JAM Industries Company, continuing factory level product support and service for Genz Benz

            Currently product development engineer: Mesa Boogie

            Comment


            • #7
              Excellent..one more newb questions...these state they are 8ohms...does daisy chaining them like that change the ohms? ...and is that considered running them parallel? (which would reduce it to 4ohms?)

              Thanks!!

              Cheers,
              B

              Comment


              • #8
                Change the ohmage of the cab? no. Change the overall Ohmage that the amp sees? Yes. Just alike any other cab.
                My Rig:

                EAW LA325's (2)
                EAW LA400's (4)
                QSC PLX 3402 (2)
                QSC PL1.8
                QSC RMX 2450
                Ashly ProTea 3.24c
                Ashly ProTea 4.24G
                EAW LA212 Monitors
                JBL PRX-512M Monitors
                Whole Lotta Cables

                Comment


                • #9
                  Yes..that is what I meant..if I run them parallel..(or daisy chained)..the speaker load then becomes 4 ohms on the amp..is that correct?

                  Comment


                  • #10
                    yes
                    My Rig:

                    EAW LA325's (2)
                    EAW LA400's (4)
                    QSC PLX 3402 (2)
                    QSC PL1.8
                    QSC RMX 2450
                    Ashly ProTea 3.24c
                    Ashly ProTea 4.24G
                    EAW LA212 Monitors
                    JBL PRX-512M Monitors
                    Whole Lotta Cables

                    Comment


                    • #11
                      Don't these also have that absolutely assinine setup that runs the chained "output" off an otherwise shorted switch-style 1/4" jack on the "input"?
                      -

                      Comment


                      • #12
                        Don't these also have that absolutely assinine setup that runs the chained "output" off an otherwise shorted switch-style 1/4" jack on the "input"?


                        huh?

                        Comment


                        • #13
                          huh?


                          Some of the JBLs from that era had a switched-contact 1/4" jack that was shorted when not in use (I think for transport purposes). That meant if you plugged into the wrong jack, the amp got to drive a dead-short load.

                          And to further compound the issue, they were mechanically flakey.
                          -

                          Comment


                          • #14
                            Some of the JBLs from that era had a switched-contact 1/4" jack that was shorted when not in use (I think for transport purposes). That meant if you plugged into the wrong jack, the amp got to drive a dead-short load.

                            And to further compound the issue, they were mechanically flakey.


                            ..but as long as I have the switch down and plug into the "FULL RANGE" input and daisy chain a speaker out of the "EXTERNAL SPEAKER OUT"...there should be no problems?

                            I guess I don't understand what the "bi-amplification" stuff means on the back of this...

                            Cheers,
                            B

                            Comment


                            • #15
                              Bi-amplification is using a separate amplifiers to drive the high and low frequency drivers. In this scenario, an active crossover is used to process the high and low signals fed to the speaker. So in "bi-amp" position, the internal passive crossover inside the speaker cabinet is bypassed.

                              Unless you are powering your cabinets in that manner (and you will know if you are), you do not need to worry about those functions.
                              -

                              Comment













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