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 P5

 B&W P 5
Floor-standing loudspeaker system
Product Summary

P5 is the mid-sized speaker in the P Series - 9% smaller than the P6 and 33% larger than the P4. All P Series speakers share the same width - a slim 200mm. 
 The key point of difference in the P5 is the lower bass drive unit, also present in the P6 but not the P4. It is in fact an extra bass-only drive unit; a 165mm dia Cobex® unit housed in its own separate reflex cavity within the cabinet.

The unusual thing about this unit is that the B&W engineers have deliberately taken the decision to select a lower bass drive unit which has different characteristics to the Kevlar® bass/midrange unit. This brings an extra degree of freedom to tailor the low-frequency response for the best possible combination of accuracy and extension which would not normally be possible
 Technical highlights
Kevlar®: B&W developed and patented the method of using Kevlar® for loudspeaker cones to reduce unwanted standing waves. DuPont originally created Kevlar® for use in bulletproof vests. 
B&W P5 Specifications
Systems:  3-way, twin 4 th order vented box system
Drive Units: 
High Frequency :  1 x 25 mm metal dome
Bass/Midrange Frequency :  1 x 165 mm woven kevlar cone
Bass :  1 x 165 mm Cobex cone bass
Frequency Response:  32 Hz - 20 kHz ±2 dB on reference axis
Frequency Range (-6 dB Frequencies):  28 Hz - 22 kHz
Dispersion (20 Hz - 10 kHz):
Horizontal :  ±2 dB over 60° arc
Vertical :  ±2 dB 10° arc
Sensitivity:  90 dB spl (2,83 V at 1m)
Crossover Frequency:  150 Hz, 3 kHz
Nominal Impedance:  8 Ω  (minimum 3,7 Ω)
Power Handling:  50 W - 200 W into 8 Ω on undistored programme
Dimensions (H x W x D):  905 x 200 x 301 mm
Weight:  14,5 kg net
Finish:  Black Ash, Rosenut, Cherrywood

Grille:  Black Cloth

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