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B & W 804S Reference Speakers

B & W 804S Reference Speakers

The 804S is a more compact version of the 803S. Exactly the same midrange and tweeter configuration is used, but bass is supplied by two smaller diameter Rohacell® cone drivers. These operate into a narrower Matrix™ braced cabinet, making this model ideal for the medium size listening room – elegant and unobtrusive.

Many of the features that go to making the 800 Series models so exceptional are hidden away inside the system. Silver coating the magnet pole in the tweeter helps extend its high-end response. The midrange driver utilises a powerful Neodymium-Iron-Boron magnet. It supplies enough strength to energise a long magnetic field that remains constant over the voice coil's full movement, ensuring the incredibly low levels of harmonic distortion necessary to reproduce programme with full clarity to high output levels.

Our crossovers use only air-cored inductors, again for lowest distortion, and capacitors developed and optimised in conjunction with one of the world's foremost manufacturers. All contacts are gold plated, to ensure long-term freedom from corrosion.

 

804S Specifications

 

Features  Woven Kevlar   
Crossover Tuning   
Nautilus Tapering Tube   
Flowport   
Mushrooms   
FST   
Tweeter on Top   
Matrix   
Rohacell   
De-Coupling
Technical Features Free-mounted aluminium dome tweeter
Kevlar® brand fibre cone FST™ midrange
Rohacell® cone bass
Matrix™ cabinet
Flowport™
Description
3-way vented-box system
Drive units
1x ø25mm (1 in) aluminium dome high-frequency
1x ø150mm (6 in) woven Kevlar® cone FST™ midrange
2x ø165mm (6.5 in) Rohacell® cone bass
Frequency range
-6dB at 30Hz and 50kHz
Frequency response
38Hz - 22kHz ±3dB on reference axis
Dispersion
Within 2dB of reference response
Horizontal:    over 60º arc
Vertical:    over 10º arc
Sensitivity
90dB spl (2.83V, 1m)
Harmonic Distortion
2nd and 3rd harmonics (90dB, 1m)
    <1% 90Hz - 22kHz
    <0.5% 120Hz - 20kHz
Nominal Impedance
8Ω (minimum 3.0Ω)
Crossover frequencies
350Hz, 4kHz
Recommended Amplifier Power
50W - 200W into 8Ω on unclipped programme
Dimensions 
Height:    1020mm (40.2 in) (not including feet)
Width:    238mm (9.4 in)
Depth:    351mm (13.8 in)
Net weight
28kg (62 lb)

 


Brand: B & W Speakers

 

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