Long type tone arm developed and designed for broadcasting stations.

High-quality miniature ball bearings are used for the horizontal rotating bearings in the rotary bearing section to achieve high sensitivity

and high reliability over a long period of time. In addition, angular miniature bearings and a hardened and polished pivot

are used for the upper and lower movable parts to achieve high sensitivity and stability.

In addition, the bearing is protected by a special elastic body influence of external vibration.

The arm stand is equipped with an anti-vibration device combined with viscoelastic material to block board vibration caused by external vibration.

A gold-plated terminal is used for the connection with the cartridge to improve reliability.

Double indicator micrometer type is used for the needle pressure adjustment mechanism.

Head shell exclusively for DA 304 has been adopted. This head shell prevents torsional resonance and reduces mass.

In addition, the cartridge can be removed and replaced freely.

Low-capacity output code is used for the output code.