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 DL-103D cartridge


Moving Coil type phono cartridge DL-103 D,  -103 S and -103
The high-grade DL-103 cartridge has been acquiring very favorable reputation for its finest quality since it was developed for the use inn the broadcasting stations in 1965. the third model of the series, DL-103D cartridge, which follows the DL-103 S moving coil catridge designed in accordance with DL-103 cartridge, has a lighter moving system and larger compliance, thus allowing a good reproducing characteristics under a lighter stylus pressure, a flat frequency response extending over 65 kHz wide and superb tone quality with the lowest distortion.

Specifications DL-103D:
Type:  Moving coil
Output Voltage:  0,25 mV (1 kHz 50 mm/sec)
Frequency Response:  20 - 65,000 Hz
Output Impedance:  35 Ω  (20 - 20,000 Hz)
Load Impedance:  more than 100 Ω
Channels Separation:  over 28 dB (1 kHz)
Channel Sensitivity Difference:  less than 1 dB (1 kHz)
Stylus Tip:  0,1 mm special elliptical solid diamond
Tracking Force:  1,5 g + 0,2 g
Compliance:  12 x 10¯⁶ cm/dyne (100 Hz)
Weight:  7,5 g

Specifications DL-103 and DL-103 S:
Type:  Moving coil
Output Voltage:  0,3 mV (1 kHz 50 mm/sec)
Frequency Response: 
DL-103 :  20 - 45,000 Hz
DL-103S :  20 - 60,000 Hz
Output Impedance:  40 Ω  (1 kHz)
Load Impedance:  more than 100 Ω
Channels Separation:  over 28 dB (1 kHz)
Channel Sensitivity Difference:  1 dB or less (1 kHz)
Stylus Tip:
DL-103 :  0,65 mil round stylus 
DL-103S :  special elliptical solid diamond
Tracking Force: 
DL-103 :  2,5 ±0,3 g
DL-103S :  1,8 g ±0,3 g
Compliance: 
DL-103 :  5 x 10¯⁶ cm/dyne
DL-103S :  8 x 10¯⁶ cm/dyne 
Weight: 
DL-103 : 8,5 g
DL-103S :  7,8 g

2 commenti:

  1. You're wrong about the DL-103S compliance. It's 8 x 10¯⁶ cm/dyne (100Hz). See the Denon DL-103/103S brochure.

    RispondiElimina