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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 15 DMT II

 HIGH PERFORMANCE REFERENCE MONITORING
 A main monitor system for Recording and Post-production studios where the requirement is for high performance, natural sound reproduction. With a single coherent wavefront thanks to the 15" Dual Concentric™ point source driver, sound presented to the engineers is remarkably distortion free. And with the enlarged monitoring position provided by this remarkable drivers wide dispersion, monitoring with the System 15 DMT II is particularly fatigue free.
 The availability of new materials and manufacturing processes has allowed Tannoy to design the System 15 DMT II from first principles, producing an all new Dual Concentric™ monitoring system with all the classic benefits of single point source monitoring combined with an exceptionally detailed but fatigue-free sound.
 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 continue the hyperbolic waveguide for the HF energy propagation.
The cabinet bracing and internalconstruction ensures that the HF unit can deliver the detail into the sound field.
The application of the Differential material Technology approach to component behaviour ubder vibration and magnetic fields has lead to custom crossover components, custom cabling and split crossovery design being employed.
Specifications
Frequency Response (±3dB, measured at 1m in anechoic chamber):  38 Hz – 25 kHz
Recommended Amplifier Power:  50 to 400 W rms into 8 Ω
Peak Power Handling:  600 watt
Power Handling:  Average:  200 W rms;  Programme: 400 W rms
Nominal Impedance:  8 Ω
Sensitivity (Averaged over specified bandwidth for half-space environment. For anechoic conditions the figure is to be decreased by 3dB):  101 dB SPL /2.83V at 1 m
Distortion:  Less than 0.5% (38 Hz - 25 kHz)
Dispersion (at -6dB):  90 conical
Crossover Frequency and Type:  1,1 kHz; 2nd order overdamped LF; 1st order HF Positive acoustic polarity
Crossover Controls:  Treble energy range 2 kHz -20 kHz (settings) +1,5 dB, Level, -1,5 dB
Drive Units:  15" full range, single Point Source, Dual Concentric™
Internal Volume:  100 litre
Low Frequency design:  Optimised bass-reflex loaded, in 140 litres
Cabinet Construction:  MDF (36mm - front and back; 20.6mm - top, bottom and sides) with energy absorbing bracing matrix and TF-2 acoustic wadding
Cabinet Finish:  Velti shadow grey soft-texture finish. High pressure twin laminate in shadow grey with metallic speckled finish on top, bottom and sides
Grille:  Single piece, black acoustically transparent material on a wood- en frame
Cabinet Dimensions (HxWxD):  840 mm x 550 mm x 440 mm (33” x 21.6” x 17.3”)

Cabinet Weight:  45kg (99.2lbs)
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2 comments:

  1. UnknownApril 14, 2020 at 4:36 PM

    Hello, do You know what is the recommended room size in square meters for such speakers?

    ReplyDelete
  2. UnknownMarch 29, 2022 at 11:10 AM

    Hello, do you know how to tell the difference between MK I and MK II?

    ReplyDelete

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