TD1 Posted April 25, 2021 Report Share Posted April 25, 2021 Hi all, I'm enjoying my L1290/2s with R. So rebuilt domes. Presently I have them set up in a horizontal biamp configuration, which I may describe in the future in the "Biamping the Big ADS Models" thread. I'd like to inspect the crossovers but have not so far been able to remove them from the cabinets via the opening in the base. Has anyone succeeded in removing the crossovers and, if so, could you describe how you accomplished it? Thanks! Tim Quote Link to comment Share on other sites More sharing options...
TD1 Posted November 27, 2021 Author Report Share Posted November 27, 2021 Following up on this. I successfully removed the crossovers from both L1290/2s. Removal is very straightforward: Remove the four 3 mm hex socket head screws, one in each corner of the crossovers. Gently pry the left side of the crossover away from the cabinet, then pull the crossover out and to the left until the 8 spade terminals, lugs, and wires are visible on the right. Remove the spade lugs and wires using a plier, hemostat, or possibly a flat blade screwdriver, noting the wire color-to-terminal mapping first. E.g., take a photo. The unit will then be free from the cabinet and drivers. Tim Quote Link to comment Share on other sites More sharing options...
Sfffz Posted May 15, 2022 Report Share Posted May 15, 2022 When you inspected the crossovers, what did you find? Did you replace or modify any of the components? I never dared look into my own L 1290's (series 1). - David Quote Link to comment Share on other sites More sharing options...
TD1 Posted June 13, 2022 Author Report Share Posted June 13, 2022 I sent them off to R. So who replaced the caps, a couple of broken binding posts, and the tweeter control & bi-amp switches. As I did them both at once I was unable to do an A/B before/after comparison but the sound (with the rebuilt mids and tweeters, which I _did_ to an A/B comparison with) remains pleasing. Tim Quote Link to comment Share on other sites More sharing options...
Sfffz Posted June 16, 2022 Report Share Posted June 16, 2022 Very impressive crossovers. I think I’ll leave mine alone. Thanks! Quote Link to comment Share on other sites More sharing options...
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