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





B&W DM 570


DM570  Stand-mount/Bookshelf loudspeaker system
Product Summary
The DM570 construction consists of a one piece moulded baffle design – in which components are exactly appropriate to the size and expected performance. A performance guided to perfection through the use of CAD, finite element analysis and laser interferometry techniques. The two-way front vented system has a specially designed 8in bass/midrange driver of the highest sophistication incorporating a high temperature Kapton voice coil which effectively winds up to increase power handling.
 
Technical highlights
B&W's Tweeter technology ensures that the sound remains focused and time sensitive and that the stereo image is presented with unparalleled three dimensional accuracy. The cabinets feature a specially designed high density front baffle which achieves almost Matrix-like stability in strengthening overall enclosure construction. The bevel edges of the front moulding reduce diffraction and improve dispersion. The crossover components use heavy gauge wire throughout and new drivers guarantee not only high reliability but ensure that top specifications are met.

Specifications
Drive Units 570
1 x 26 mm high-frequency with aluminium dome, 26 mm coil on aluminium dome former, wound with polymide resin and heat cured
1 x 200 mm bass/midrange with composite short fibre cone, 3 0mm coil onKapton former, wound with polymide resin and heat cured
Frequency Response:  55 Hz – 20 kHz ±2.5 dB on reference axis
Sensitivity:  91 dB spl(2.83V 1m)
Nominal Impedance:  8Ω
Power Handling:  10 W – 120 W into 8 Ω on unclipped programme
Dimensions (W x H x D):  236 x 634 x 302 mm
Finish:  Black ash or walnut vinyl


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