Bowers & Wilkins 603 S3 Floorstanding Speakers (Pair)
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.
Shipping
Most orders ship within 1–3 business days. We deliver across Canada. Large items such as speakers and TVs may require freight shipping — our team will contact you to arrange delivery.
Returns
We accept returns within 30 days of delivery for unused items in original packaging. Contact us at support@HomeAutomationDesigns.com to initiate a return.
Installation Services
Professional installation available in the Ontario GTA & Hamilton area and Edmonton, Alberta. Our certified technicians ensure your system is set up correctly and working perfectly. Contact us to book a consultation.

Layered, beautiful details
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.

Truly amazing sound
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.

Precision and transparency
Thanks to its composite construction, the Continuum cone avoids the abrupt transitions in behavior that can impair the performance of a conventional drive unit. With 603 S3, experience a more open, neutral performance that delivers voices and instruments with precision and transparency.

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.
The Bowers & Wilkins 603 S3 is the largest and most capable speaker in the 600 Series, a 3-way floorstanding tower built for larger rooms and dedicated home theaters. It pairs a titanium dome tweeter with a dedicated Continuum cone FST midrange driver and two 6.5-inch paper cone bass drivers, splitting frequency duty across three dedicated drivers rather than the 2-way design used in the series' bookshelf models, which delivers more room-filling scale and low-end authority. The 3-way vented-box Flowport enclosure and acoustically transparent tweeter grille carry the same design language as the smaller 600 and 607 models, but sensitivity climbs to 90dB and the recommended amplifier range extends up to 200 watts into 8 ohms, giving it real headroom for larger spaces. At just over 40 inches tall including its plinth, it's a genuine floorstanding tower rather than a stand-mount speaker, and it can anchor either a stereo system or serve as the front left/right pair in a full 600 Series home theater build. Sold as a pair in black, white, or oak finishes.
Size & weight
| Net weight | 27.5kg (60.6 lb) |
|---|---|
| Dimensions | 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 |
Technical details
| 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 |
| Harmonic distortion | 2nd and 3rd harmonics (90dB, 1m on axis) <1% 100Hz - 22kHz <0.5% 350Hz - 12kHz |
| Nominal impedance | 8Ω (minimum 3.0Ω) |
| Recommended amplifier power | 30W - 200W into 8Ω on unclipped programme |
| Technical features | Decoupled Double Dome Titanium tweeter Continuum™ cone FST™ midrange Paper bass cones Flowport™ |
| Description | 3-way vented-box system |
| Max recommended cable impedance | 0.1Ω |
| Frequency response (+/-3dB from reference axis) | 46Hz - 28kHz ±3dB |
| Sensitivity (on axis at 2.83Vrms at 1m) | 90dB |
Finishes
| Cabinet finishes | Black White Oak |
|---|---|
| Grille finishes | Black (Black) Grey (White and Oak) |
Q What is the Bowers & Wilkins 603 S3 and what is it used for?
It's the largest floor-standing speaker in the Performance 600 Series, engineered for spacious rooms and home theater applications, delivering room-filling scale and authority.
Q What drivers does it use?
A 25mm Titanium Dome tweeter, a 150mm Continuum cone FST midrange driver, and two 165mm paper cone bass drivers, in a 3-way vented-box system.
Q What is its frequency response and sensitivity?
A frequency response of 46Hz–28kHz (±3dB), extending down to 29Hz at -6dB, with a sensitivity of 90dB.
Q What amplifier power does it need?
It's rated for 30W–200W into 8Ω, with a nominal impedance of 8Ω (minimum 3.0Ω).
Q What finishes are available, and what are its dimensions?
It's available in Black, White, or Oak with matching grille options, measuring 985mm tall (1,020mm with plinth) x 190mm wide (260mm with plinth) x 340mm deep (402mm with plinth), and weighs 27.5kg per speaker. It's sold as a pair.








