Infinity Black Widow Tonearm specifications

Infinity has also offered a very high-quality tonearm for analog record players. This one was only built in a very strictly limited way, but it could also come up with some treats.

The delicate technique of this tonearm is, as is typical for Infinity , very well thought out and extremely precisely manufactured. Of course, with an analog drive you can not do without it either way. However, what sets it apart from most other tonearms is the fact that the tonearm tube was made of carbon fiber. This makes the pure carrier extremely light and at the same time extremely stable. A fantastic template for a perfect tonearm.

The so-called ULM tonearm is guided by a knife bearing. The damping takes place via silicone oil. The connection is made in a 5-pin din socket, which is integrated in the tonearm.

Some technical data:

And here are some more data and descriptions:

Infinity Black Widow I and II (BWI/BWII)

Effective length: 237mm
Overhang: 15mm
Mounting distance: 222mm
Zero Points: 66.8/103 mm

Overall Length: 298.5mm
Pivot Stylus Distance: 237 mm
Effective Mass of Arm: 3 g(BWI) / measured: 3.2g(BWI) / 5.7g(BWII)
Total Cable Capacitance: 60 pF(BWI) / measured: 70 pF(BWI) / 90 pF(BWII)
Cartridge Weight Range: 4 - 8.5g (both tonearms)
Stylus Force Adjustment: Calibrated in half-gram steps
Inside Force Cancellation (anti-skating): Calibrated fine spring adjustment
Cueing Device: Oil-dampened
Bearing Friction at Stylus Point: Vertical bearing (knife edge): 0.005 g, Lateral (fine miniature ball bearing): 0.01 g