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 DP-40F turntable


 Model DP40F is a single play full automatic record player developed from that principle. The basis of this full automatic record player is of course Denon's unique high-performance direct drive record player, with Phase Locked Loop (PLL).

Electronically servo controlled tonearm the unity of accurate servo technology, position selector having unique operational flexibility, and non-contact electronic, anti-skating devices are newly added in a pursuit of the ideal form of this record player system. Easy operation is also accomplished.

Now you are from that tense moment of actually lowering the stylus onto the record disc, the tonearm can be remote-controlled by your will. Full automatic record player created by Denon always have the extra and advanced key compared with other full automatic players.

 


Features

Tonearm can be freely operated at panel with the dust cover closed.

Equipped with the electronically servo controlled tonearm so completely different from any other full automatic record players. You can easily locate the head of a program or repeat playing froms desired part to the end of the record.

All the tonearm motion is electronically controlled so that its operational mode can be changed smoothly and quickly.

Thanks to the non-contact auto-arm mechanism, no-load is applied a the tonearm or turntable

Light stylus force, high-compliance cartridges can be used in full confidence. So gentle with no mechanical sound.

 

Horizontal movement of the tonearm is servo controlled allowing gentle smooth movement.

Anti-skating mechanism eliminates the scating of stylus as it functions after the stylus is lowered onto the record disc. You are now free from the worry of damaging the stylus or record disc.

A damping material inserted in the rear part of the tonearm. The tonearm is hardly affected by the external vibration.

Head shell, the effective combination of the rigid light alloy and special elastic material to supress resonance

Speed servo-control, the unique magnetic record detection system of quick response; Denon Quartz turntable is a combination of the speed servo-control and the phase control by the crystal oscillation.

Wood grain finish elegant cabinet. More than sufficient measures taken again howling.

 


Specifications

Drive System:  Direct-drive by AC servo-motor

Speeds:  33-⅓ and 45 rpm

Wow and Flutter:  0,015% WRMS

Rumble:  less than -75 dB (DIN B)

Rise Time:  less than 1,5 sec, to reach 33-⅓ rpm

Platter:  Casted aluminum, 300 mm diameter

Motor:  AC servo motor

Speed Control System:  Speed servo control by frequency detection system combined with phase control system with reference to the quartz crystal oscillator.

Tonerarm

Type:  S-shaped, static balance type

Automatic Mechanism:  Electronically servo controlled

Effective Lenght:  244 mm

Stylus Force Range:  0 - 2,5 g/rotation; 0,1 g direct reading

Acceptable Weight of Cartridge:  15 - 21 g (including shell)

Headshell:  Impact molded rigid light metal, 9 g (net)

Output Cord:  Low capacitance cord. Approx. 1,2 m

General

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

Power Consumption:  18 W

Dimensions (W x H x D):  485 x 437 x 146 mm

Weight:  12 kg

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