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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





Denon DR-240 cassette deck

Two Motor Stereo Cassette Deck

Features:

IC-full logic circuit, feather touch control system

Two motor mechanism to drive the capstan and reel independently

Non slip reel drive system with stable take up torque and improved drability

Cueing/reviewing and automatic cueing system

Large VU meter and 3-color LED peak indication for proper level monitoring

Available side wooden cabinet ACA-10

 

Specifications

Type: 4-track, 2-channel stereo

Heads:

Record/Playback : 1 x Sendust head

Erase : 1 x Double gap ferrite head

Motors

Capstan :  DC servo motor

Reel :  DC motor

Wow and Flutter:  less than 0,04% WRMS

Fast Forward/Rewind Time:  appox. 90 sec (C-60 cassette)

Signal-to-Noise Ratio:  more than 65 dB (Dolby NR at On)

Frequency Response:

Metal Tape :  25 Hz - 19,000 Hz ±3 dB

CrO₂ Tape :  30 Hz - 17,000 Hz ±3 dB

L.H. Tape :  30 Hz - 15,000 Hz ±3 dB

Crosstalk:  more than 65 dB (1 kHz)

Inpur Sensitivity/Impedance

Line :  70 mV/50 k

Microphone :  0,35 mV/10 k

Output Level/Impedance

Line :  77,5 mV (VR max. Load impedance 10 k

Headphone :  1,2 mV / 8  - 2 k

Power Requirements:  AC 120 V, 60 Hz; 200/220/240 V 50/60 Hz

Power Consumption:  25 watts

Dimensions (W x H x D):  434 x 117 x 300 mm

Weight:  7  kg

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