What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.



H.H. Scott '59





DUAL DMS 200 - Cartridge

DUAL DMS 200

Technical data

Stylus: DN201, 0,6 ±0,1 mil spherical diamond stylus for micro-groove and stereo records

Recommended stylus pressure: 2,5 g (2 -3 g)

Frequency range: 20 c.p.s. to 20 k c.p.s.

Output: ≥ 0,7 mV/1cm/sec perchannel at 1 k c.p.s.

Output difference between channels: Max. 2 dB at 1 k c.p.s.

Isolation between channels: Min. 20 dB at 1 k c.p.s.

Compliance: Horizontal 18 x 10-⁶ cm/dyn; Vertical 18 x 10-⁶ cm/dyn

Intermodulation distortion (FIM): At 2,5 g stylus pressure, 8 cm/sec velocity, ≤ 0,7%

Net weight: 7 p

End resistance: 47 kOhm

Impedance: 5,5 kOhm at 1 k c.p.s.

Ohmic resistance: 1,2 kOhm

Inductance: 850 mH

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