The J.Sikora KV12 is a 12’’ oil-dampened unipivot tonearm with an effective length of 304,8 mm and effective mass of 13g. The make and finish are impeccable. It features a flat, metal headshell with elongated slots that allow user to move a cartridge along while setting it up.
Same as in the J.Sikora’s deck, also here designers decided to use a combination of several materials to achieve ultimate performance. The tube is made of Kevlar, and as far as I know it is the first tonearm ever utilizing this material. It is supported by several metal elements made of aluminum, iron cast, bronze and stainless steel.
The internal custom mono-crystal silver wiring was custom-made by another renown Polish manufacturer, Albedo. It is a single piece wiring from cartridge pins on one end to RCA connectors on the other.
There are two counterweights. A bigger one placed close to pivot point allows user to adjust azimuth (using a single, easily accessible screw that ones screws in or out). And there is another, smaller one – the one that was replaced a week after the arm was installed on my deck. It is a metal cylinder with the threaded hole along its longer axis. Using such alignment allows for super-precise VTF adjustment.
In the box one finds another counterweight (smaller or larger depending on which was is installed) which may come handy for lighter or heavier cartridges.
There is also an anti-skating with a very small, very light weight on a thread (it’s all that is needed for this arm).
Bearing type: unipivot
Material: Kevlar®, aluminium, bronze, cast iron, stainless steel
Oil damping: yes
Tube: conical (Kevlar®)
VTA adjustment: yes
Mass: 890 g
VTA mass: 225 g
Effective lenght: 304,8 mm
Mounting distance: 291 mm
Effective mass: 13 g
Available colours: natural yellow / lacquered black mat