Features

Straight arm
Most of today’s tonearms come with the offset angle and inside force canceller to minimize tracking error. The distortion caused by tracking error can easily be explained geometrically and easy to solve geometrically by giving an offset angle to the arm, but the actual effect of the tracking error on the sound is less serious than that of the strong inside force caused by the offset angle. The inside force changes dramatically by the frequency and amplitude of the signal, and a static canceling system is not effective enough. Overly concerned on tracking error, arms with offset angle and inside force canceller forget the forest by just focusing on the tree. Straight arm has tracking error, but it is far less damaging to the signal than the strong inside force caused by the offset angle. .

Vertically angled arm setting
Offset angle exists on vertical plane too, made by the angle of cantilever and horizontally flat arm setting, causing extra down force. RS-A1 compensates this problem with higher fulcrum setting, giving 16 degrees angle to the arm.

Rotary head shell
The needle talk is caused mostly by the cartridge-arm-base resonant chain. Rotary headshell of RS-A1 cut off this chain of resonance by eliminating the effect of the arm mass to the cartridge.