mangoman Posted February 7, 2012 Report Share Posted February 7, 2012 I posted this yesterday but it seems not to have worked so, once more...........I own a pair of very old AR-4x speakers which seem to differ from the norm in that they have a passive device in the top corner, diagonally above the tweeter; none of the images I can find on the webbie show this thing in place, they all have just the woofer and a tweeter.They have been here about 15 years awaiting re-rubbering of the surrounds and a crossover check/overhaul and still have the original AR-4x paper labels on the back with serial numbers G20674 & G2068, but in each case bearing a large cross over the printed details and one has an additional serial number on a blue label, but that could be an inventory or auction number.Their size is 485h x 257w x 230d (mm) and I will try and post images with this.I would really like to know what the function of this device is; it seems to have no diaphragm inside and has no magnet, just a bumped rear with a hole about 17mm in diameter that is covered with a strip of masking tape and a black fabric disc fixed to the front plate. It must be original because the baffle has the correct inserts for the screws that hold it and it has the usual black sealant goo behind it and the rebate is black painted in the same way as the woofer and tweeter holes. I would appreciate any advice from those who know these early AR speakers as to what it is! Link to comment Share on other sites More sharing options...
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