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  • THOR is the new top-of-the-line loudspeakerkit from SEAS. It is a full range, floor-standing system that provides the very highest level of acoustic performance. This kit uses two W18E001 woofers and a single T25CF002 "MILLENNIUM" tweeter mounted in a D'Appolito configuration.

    The enclosure uses a newly developed transmission line configuration, derived both from sophisticated computer modeling, and extensive experimentation.

    The line is tapered, and filled with Dacron stuffing. The two W18E001 woofers excite the line at slightly different points, smoothing the response and increasing the range of bass output.

    The transmission line produces 4 dB of bass lift from 20Hz to 110HZ, with less than 1 dB of ripple. The -3dB point is 45Hz, with roll off of 12dB per octave below 45Hz.
    Usable in-room bass response extends well into the low 30Hz range.

    The crossover network is conventional except for a parallel circuit which supresses the response peak due to the magnesium cone.
    The crossover frequency is 2.5kHz.



    THOR was designed by Dr. Joseph D'Appolito, who is world-renowned for his pioneering work on MTM-based loudspeaker configurations.
    He offers the following comments on THOR:

    "Transmission Line loudspeakers have long enjoyed a small, but dedicated following. The advantages of TL's are well known. They are essentially non-resonant enclosures, producing a deep, well-controlled bass response. For a given driver, bass response will extend well below that produced
    with either a vented or sealed enclosure using the same driver. Above a few hundred Hz, the line filling material completely absorbs the driver backwave, giving the TL an open, non-boxy sound."

    Hints to build Thor

    Stuffing: For the damping of Thor, we recommend using a Dacron fibre mat weighing 360 g /sq. metre (1,2 oz / sq. Ft)
    400 g (14 oz) of the damping material should be placed in the front channel; 250 g (9 oz) in the rear.

    For more in-depth information about the design, please see the article by Dr. Joseph D'Appolito and Dennis Colin in AudioXpress.


    Printable PDF files:
    Cabinet drawings
    Cabinet drawings in inches
    Crossover schematics
    Measurements


    *IEC 268-5 SEAS reserves the right to change technical data


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  • 环球佳酿举行新品发布会 百余款酒品集中发售 2019-07-26
  • 印度纪行:从女佣到女工的距离 2019-07-17
  • 泸州老窖刘淼:品牌基因是推动酒企发展的终极力量白酒 泸州 2019-07-17
  • 京发展租赁型职工集体宿舍 人均面积不得低于4平方米 2019-06-02
  • 《中国教育报》电子版 2019-06-02
  • 小萌们以为计划就是一拍脑袋一张嘴那么简单? 2019-05-29
  • 公众论坛官方网站首页·南方都市报·南方报业传媒集团 2019-05-29
  • “讲课带着泥土味,我们都爱听” 2019-05-14
  • 用当代中国马克思主义指导改革发展实践 2019-05-13
  • 人才济济是德尚"幸福的烦恼" 高卢雄鸡能否高奏凯歌 2019-05-12
  • 英国球迷要在世界杯上搞事情?俄罗斯笑脸相迎:你来啊 2019-05-12
  • 端午节,跟随习近平找寻中华民族“精气神” 2019-05-11
  • 首届中国企业海外投资沙龙举行 2019-05-11
  • 上海交通大学安泰经管学院MBA中心常务副主任陈建科专访 2019-05-10
  • 张德江:必须切实把人民当家作主落实到国家政治生活和社会生活之中 2019-05-09