Helena與Black Beauty唱臂，一切設計以聲音為考量。
Black Beauty 12″ Tonearm
Helena 10″ Tonearm
以碳纖維手工製成，採用三層碳纖製成，非常堅固，是F1賽車等級的技術，能夠承受到250公斤重量，在唱臂底部有一個很重要的金屬球，所有唱臂上的震動，例如唱針與唱片接觸時產生的震動或是喇叭聲音產生的反饋震動都會傳導到這個金屬球上。
它的位置是在整隻唱臂的重心，這非常重要，當震動傳導到不是重心的位置，會產生一個反作用力，使得整隻唱臂晃動，KRONOS唱盤搭配Helena或Black Beauty唱臂時，在播放音樂的狀況下，輕輕搖動唱盤也不會影響到聲音，因為搖動唱盤時產生在唱臂上的外力會引導至這個金屬重心球上，而唱臂的平衡又非常精準，所以不會使得唱臂與唱針左右晃動，聲音也就不會受到干擾。
規格
| HELENA | BLACK BEAUTY | |
| effective lenght: | 266.7 mm | 308 mm |
| effective mass: | medium | medium high |
| overhang: | 15.4 mm | 13.2 mm |
| pivot to spindle distance: | 251.3 mm | 294.8 mm |
| maximum tracking error: | 0.0159 | 0.0135 |
| measured resonant frequency (9 grams, 15 units of compliance test cartridge): | 9.5 hertz | 8.5 hertz |
| cartridge weight compatibility: | 7 to 16 grams | 7 to 16 grams |
| VTA adjustments: | coarse and fine up to 1 inch | coarse and fine up to 1 inch |
| azimuth adjustment: | coarse and fine | coarse and fine |
| bearing type: | proprietary ball and spherical mirror uni-pivot. | proprietary ball and spherical mirror uni-pivot. |
| arm tube characteristics: | double wall high modulus carbon fiber composite. | double wall high modulus carbon fiber composite. |
| outer shell: | 3k 50t fibers, variable thickness an fiber orientations. | 3k 50t fibers, variable thickness an fiber orientations. |
| inner tube: | uni-directional fibers. Selected wood fairings between the tubes. Hand polished cellulosic lacquer finish. | uni-directional fibers. Selected wood fairings between the tubes. Hand polished cellulosic lacquer finish. |
| arm lift: | hydraulic dampened | hydraulic dampened |
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