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

Mordaunt-Short DSB 208

DSB 208 Low distortion bass-and mid-frequency transducer.

Mordaunt-Short's bass-and mid-frequency transducer, the DSB208, is a versatile high performance unit designed for the accurate reproduction of programme material at realistic sound levels.
 By combining a long-throw voice coil, linear suspension, critically damped cone and compliant roll surround, the DSB208 shows to greatest advantage when the unit is used with advanced amplifiers of high power; nevertheless, the acoustic efficiency of the unit is such as to enable it to enhance the output of quality amplifiers even of low power ratings.
Nominal Frequency Range:  20 - 5,000 Hz.
Impedance:  8 Ohms nominal.
Nominal Sensitivity:  6.5 V r.m.s (5.3 watts) to produce 96 dB at 1 metre in anechoic condition using pink noise.
Fundamental Resonance:  30 Hz in free-air.
Continuous Programme Rating:  20 V r.m.s (50 watts) contoured random noise when operating within frequency range 25 - 5,000 Hz.
Chassis:  208 mm nominal diameter, zinc plated heavy gauge steel.
Magnet:  High flux assembly employing 90 mm diameter ceramic ring.
Cone:  140 mm diameter; heavy duty impregnated paper specially treated with viscous damping materials.
Surround:  Ultra-linear, compliant, inverted-roll surround of a synthetic material inherently self damping.
Voice Coil:  26 mm diameter, long throw, high temperature coil, wound on laminated former.
Dimensions:  Diameter: 208 - 244 mm;  Depth: 112 mm.
Weight:  1.5 kg

Nessun commento:

Posta un commento