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  1. #1
    MAX SPL cocopeep's Avatar
    Join Date
    Jan 2006

    Jse Infinite Slope 1.8 Speaker

    Is anyone familiar with the JSE INFINITE SLOPE speaker lineup? I have the 1.8 which is about midway in size compared to the other JSE models. They are about 20 years old now with all original drivers. The woofers needed the foam replaced, which I got on e-bay and did them myself. The 4- 10" drivers work perfectly and offer tighter bass after I replaced the foam surrounds. I did blow a tweeter around 1992 and since they were still in business then, I was able to get a matching replacement.

    specs from original brochure

    Specs are 89db sensitivity 1 watt 1M
    30 watts min, 300 watts input max
    35 hz to 20 kHz +/- 2dB
    Tweeter- 28mm textile dome aperiodic damping hex coil former
    Midrange- 170mm polycone mounted in its own acoustically treated sub enclosure
    Bass- 2-10" in phase shift bass loading system

    Cabinet enclosure 1.5" high density front cabinet. 110 lbs each


  2. #2
    chucksrt Registered Member
    Join Date
    Feb 2008
    bensalem, pa
    I have used infinite slope speakers for a long time. I love them!!! If you need info on them contact John Sollecito at Source speakers. I have Model 1 speakers right now and had the .8 a while ago. Really good speakers!!!

  3. #3
    Super Moderator Site Moderator JohnMichael's Avatar
    Join Date
    Apr 2005
    Central Ohio
    Joseph Audio is now making speakers using the Infinite crossover technology. I do not remember if they bought out JSE Infinite Slope but they may be able to help.
    Vinyl Rega Planar 2, Incognito rewire, Deepgroove subplatter, ceramic bearing, Michell Technoweight, Rega 24V motor, TTPSU, FunkFirm Achroplat platter, Michael Lim top and bottom braces, 2 Rega feet and one RDC cones. Grado Sonata, Moon 110 LP phono.
    Sony SCD-XA5400ES SACD/cd SID mat, Marantz SA 8001
    Int. Amp Krell S-300i
    Monitor Audio RS6
    AQ SPKR and AQ XLR and IC

  4. #4
    chucksrt Registered Member
    Join Date
    Feb 2008
    bensalem, pa
    When I contacted Joseph Audio they said they didn't deal with the Infinite Slope speakers and that John from did. I just picked up a pair of 1.8A speakers and can't wait to hook them up!!!

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