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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 System 6 NFM II


 The Dual Concentric design philosophy is world known for its precise stereo imagery and for the ease of finding sounds within a sound stage. The presentation of the sound image makes long production sessions much less fatiguing than with other monitoring systems because the brain does not have to work as haard correcting for acoustic anomalies in the time and frequency domains.
The integration of all the features described HERE is what makes the whole loudspekaer system even greater than sum of the individual parts.

  • The style of the cabinet is not arbitrary, it has been arrived at by considering the acoustic principles of diffraction and energy storage.
  • The trim rings around the rubber surrounds are there to smooth out the otherwise discontinuous contour to the HF wavefront.
  • The smooth lines around the port tubes ensure laminar air flow at low frequencies where the air in the ports has maximum velocity.
  • The shapes of the LF cones contiune the hyperbolic waveguide for the HF energy propagation.
  • The cabinet bracing and internal construction ensures that the HF unit can deliver the detail into the sound field.
  • The application of the Differential Material Technology approach to component behaviour under vibration and magnetic fields has lead to custom crossover components, custom cabling and a split crossover design being employed.
Specifications System 6 NFM II
Recommended Amplifier Power:  20 to 150 watt RMS
Peak Power Handling:  175 watt
Nominal Impedance:  8 Ω
Sensitivity (2,83 volts at 1m):  91 dB
Distortion:  less than 0,75% (52 Hz - 25 kHz)
Phase Response:  System behaves substantially as a frequency-independent time delay
Dispersion:  90 degrees conical
Crossover Frequency:  2 kHz
Crossover Type:  2nd order LF, 1st order HF Hard-Wired, low-loss, Positive acoustic polarity
Frequency Response (±3 dB):  52 Hz - 25 kHz
Drive Unit Type:  6,5 inch, 1667 Dual Concentric
Cabinet Internal Volume:  10 litres
Cabinet Material:  30,6 mm MDF front baffle;  15 mm high density particle board lined with TF-1 acoustic wadding
Cabinet Finish:  High quality vinyl finish. Velti shadow grey soft-texture finish baffle
Grille:  Single piece, black acoustically transparent material over a rigid frame
Dimensions (H x W x D):  345 x 230 x 223 mm (13,6" x 9,1" x 8,8")

Weight (net):  5,7 kg (12,6 lb)
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