Nagaoka MP-300 MM sound box
Elliptical needle implanted in a boron needle shaft, fiberglass reinforced body, metal mounting flange and screw-mounted needle unit.
Founded in 1940, Nagaoka, Japan, manufactures its sound boxes meticulously by itself from start to finish, also working as a subcontractor for many big brands. The company's job description includes fine machining of metals, magnetic materials, and gemstone materials.
The world-renowned Nagaoka sound boxes and Audio accessories represent the traditional high Japanese concept of quality.
Technical information:
- Needle shaft: Boron
- Needle grinding: Elliptical 0.4 x 0.7 mil
- Output voltage: 3mV (5cm/sec)
- Channel balance: better than 1dB
- Frequency response: 20-28000Hz
- Channel separation: 27dB
- Mass: 8g
- Needle weight: 1.3-1.8g
- Load: 47k
- Dynamic flexibility: 7.2 x 10-6 cm/dyne
- Static elasticity: 20 x 10-6 cm/dyne
