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

Nakamichi OMS-1 /1A /1E (1988)

Nakamichi OMS-1 Single Compact Disc Player

Features :

3 Beam Laser Pick Up.

2 Times Oversampling Digital Filter.

16-bit D/A (digital to analog) Converter Technology.

5th Order Active Low-Pass Filter.

Floating Disc Drive Mechanism with Precision Centering for Protection against Disturbance.

CLV (Constant Linear Velocity) Servo System.

RCA phono analogue outputs

Specifications :

Principle: Digital Audio System


2 x Burr Brown PCM56P,

2 x oversampling digital filter LC7860N,

Transport: AT-D16 / D654 / OC82727A

Frequency Response: 5 Hz - 20 kHz, +0.5 dB -1 dB

Signal to noise: better than 96 dB (IHF A-weighted)

Sensing Method: Non-Contact Optical System (Semi-conductor Laser)

Error Correction: CIRC by Principle

Number of Channels: 2 Channel Stereo

Total Harmonic Distortion (THD): 0.006%

Channel Separation: better than 88 dB

Dynamics Range: better than 90 dB

Quantization: 16 Bit Linear

Sampling Frequency: 44.1 kHz

Speed: About 200-500 rpm (Constant Linear Velocity)

Output Level (Line 1 kHz, 0 dB): 2.5 V / 600

Power requirement: 120/240 Volts (50/60 Hz)

Power Consumption: Max 14 watts

Dimensions (W x H x D): 430 x 75 x 270 mm

Weight: approx. 3,7 kg

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