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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





Tannoy Dover loudspeakers

Dual Concentric Time Compensated Loudspeaker System

The famous Tannoy Dual Concentric in a modestly sized cabinet that can be floor standing on its own plinth, mounted on speaker stands or a bookshelf.

A 10-inch (254 mm) version of the Dual Concentric drive unit is used in an infinite baffle (unported) cabinet, with rigid bracing and graded acoustic foam damping, to give the best possible sound reproduction in a loudspeaker of this size.

Each Dover is supplied with a separate plinth. If used as a floor standing loudspeaker this plinth can be attached to the base of the cabinet with the screws provided. When used on stands or shelves this plinth is not required.

The Dover is designed to provide the high quality sound of the Tannoy Dual Concentric system in a size of loudspeaker to suit smaller listening rooms.

The high quality of sound reproduction is matched by the standard of cabinet construction. Every Dover is finished in genuine walnut veneers, oiled by hand and the baffle is covered in real cork.

 


The Tannoy Dual Concentric is, therefore, a true single point sound source loudspeaker system which eliminates unnatural time delay, and provides the smooth consistent intensity of sound necessary to create a precise stereo image.

 


Specifications

Recommended Amplifier Power (RMS per channel into 8 Ω ):  30 - 150 watts

Peak Power Handling:  250 watts

Impedance:  8 Ω  (Nominal):  5,5 Ω  (minimum)

Sensitivity (for 1 W at 1 m):  93 dB (domestic); 90 dB (Anechoic)

Frequency Response;  50 Hz - 20,000 Hz ±3 dB

Phase Response:  ±18° between 150 Hz - 8 kHz

Time Compensation:  better than ±20 µ sec 150 Hz - 8 kHz

Dispersion:  90° conical (including angea at -6 dB points at 10 kHz)

Crossover Frequency:  1,2 kHz

Crossover Type:  Passive, low loss, time compensated type 1040

Drive Type: 254 mm (10") Tannoy Dual Concentric high compliance type 2558

Distortion:

Less than 5% 3rd harmonic at half power 150 Hz - 20 kHz

Less than 0,6% 3rd harmonic for 85 dB 80 Hz - 20 kHz

Cabinet Type:  Infinite baffle

Cabinet Volume:  31 litres (1,1 cu.ft)

Cabinet Construction:  18 mm particle board with rigid bracing with internal damping

Finish :  Real walnut veneers

Grille :  Woven cloth over wooden frame

Dimensions (H x W x D):  580 x 310 x 285 mm (23" x 12" x 11")

System Weight:  18 kg (39,5 lb)

Shipping Weight:  20 (44 lb)

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