Bowers & Wilkins 603 S3 Floorstand speaker


The 603 S3 is the largest loudspeaker in the 600 Series and is ideal for larger rooms and home theaters. It combines our new Titanium Dome™ tweeter with the accuracy and transparency of our acclaimed Continuum™ cone FST™ midrange driver.

The new 603 S3 introduces our all-new Titanium Dome tweeter, which combines exceptional resolution and insight with smooth, refined high-frequency reproduction. The result? An accurate and immersive insight into your favorite music.
603 S3 introduces our new and even more acoustically transparent tweeter grille mesh, first developed for our revered Signature models. Alongside the new Titanium Dome tweeter, the resolution and realism is exceptional.

Upgraded speaker terminals

Derived from the speaker terminals recently introduced in our 700 Series range, the speaker terminals on the new 603 S3 feature an improved layout and a cleaner signal path between your amplifier and your loudspeakers.





Height: 985 mm (38.8 in) cabinet only,1,020 mm (40.2 in) including plinth

Width: 190 mm (7.5 in) cabinet only,260 mm (10.2 in) including plinth

Depth: 340 mm (13.4 in) cabinet only,368 mm (14.5 in) including grille and terminals 402 mm (15.8 in) including plinth

Net weight  :- 27.5kg (60.6 lb)

Technical features

Decoupled Double Dome Titanium tweeter

Continuum™ cone FST™ midrange

Paper bass cones


Drive units

1x ø25mm (1 in) Titanium Dome high-frequency

1x ø150mm (6 in) Continuum cone FST midrange

2x ø165mm (6.5 in) Paper bass cone

Frequency range  :- -6dB 29Hz – 33kHz

Frequency response (+/-3dB from reference axis)  46Hz – 28kHz ±3dB

Sensitivity (on axis at 2.83Vrms at 1m) :- 90dB

Harmonic distortion

2nd and 3rd harmonics (90dB, 1m on axis)

<1% 100Hz – 22kHz
<0.5% 350Hz – 12kHz

Recommended amplifier power

30W – 200W into 8Ω on unclipped programme



Grille finishes

Black (Black)
Grey (White and Oak)