npeters Posted August 19, 2016 Report Share Posted August 19, 2016 Hi - Greetings from Canberra, Australia. I just picked up a pair of Acoustic Research AR-92 speakers, with consecutive serial numbers for almost nothing. They are in reasonable aesthetic condition, and should clean up nicely for WAF purposes. I have read that these have a frequency response of 32-20,00 hz, and 200 watts power handling capability The dust caps have disintegrated, but the roll surrounds look OK to me. Can anyone advise me the material type for the dust caps (fabric? solid paper? metal?), and hopefully the size - I can't find my measuring calipers to estimate the diameter I need. I will carefully vacuum out any debris in the VC gap when I start on the repair process. Also, what is the best sort of glue to use for the dust caps? I will buy glue with the roll surrounds sold for them, but is there any particular type to use for the caps? The "acoustic blanket" around the tweeter and mid-range has gone, I have read that black air conditioning or heater intake filter material is good for this replacement use, but any advice is welcome. Advice regarding the crossovers for a rebuild would be really helpful. I believe that they crossover at 700hz and 7,500hz. Is there a schematic available for these units here? The switches on the back for -3 and -6 dB for the tweeter and mid-range seem to be stuck in one position - should I blast them with contact cleaner? Is the veneer on the AR92s real wood or is it vinyl? One last question - should I bother with new ferrofluid? Once sorted, I will replace the grille fabric.... I also scored 2 x 16 foot multi-braided cable as interconnects for them, so I am pretty darn happy. Cheers, norm Link to comment Share on other sites More sharing options...
This topic is now archived and is closed to further replies.