Members themusician Posted May 12, 2011 Members Share Posted May 12, 2011 Any one have any idea how the switches, knobs and inputs on the back of these work? Trying to figure them out. Cheers, B Link to comment Share on other sites More sharing options...
Members Keyrick Posted May 12, 2011 Members Share Posted May 12, 2011 Check out the Link. http://www.jblproservice.com/navigation/Cabaret%20Series.html Link to comment Share on other sites More sharing options...
Members themusician Posted May 12, 2011 Author Members Share Posted May 12, 2011 Thanks for the link! ...but I'm still confused on the inputs and how they work and what not... :? Cheers, B Link to comment Share on other sites More sharing options...
Members The Chinese Posted May 12, 2011 Members Share Posted May 12, 2011 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. Link to comment Share on other sites More sharing options...
Members themusician Posted May 12, 2011 Author Members Share Posted May 12, 2011 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 Link to comment Share on other sites More sharing options...
Members agedhorse Posted May 12, 2011 Members Share Posted May 12, 2011 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. Link to comment Share on other sites More sharing options...
Members themusician Posted May 12, 2011 Author Members Share Posted May 12, 2011 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 Link to comment Share on other sites More sharing options...
Members The Chinese Posted May 12, 2011 Members Share Posted May 12, 2011 Change the ohmage of the cab? no. Change the overall Ohmage that the amp sees? Yes. Just alike any other cab. Link to comment Share on other sites More sharing options...
Members themusician Posted May 12, 2011 Author Members Share Posted May 12, 2011 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? Link to comment Share on other sites More sharing options...
Members The Chinese Posted May 12, 2011 Members Share Posted May 12, 2011 yes Link to comment Share on other sites More sharing options...
Members soul-x Posted May 12, 2011 Members Share Posted May 12, 2011 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"? Link to comment Share on other sites More sharing options...
Members themusician Posted May 12, 2011 Author Members Share Posted May 12, 2011 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? Link to comment Share on other sites More sharing options...
Members soul-x Posted May 12, 2011 Members Share Posted May 12, 2011 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. Link to comment Share on other sites More sharing options...
Members themusician Posted May 12, 2011 Author Members Share Posted May 12, 2011 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 Link to comment Share on other sites More sharing options...
Members soul-x Posted May 12, 2011 Members Share Posted May 12, 2011 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. Link to comment Share on other sites More sharing options...
Members themusician Posted May 12, 2011 Author Members Share Posted May 12, 2011 Thanks!! Cheers, B Link to comment Share on other sites More sharing options...
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