Bowers & Wilkins 603 S3 Floor Standing Speakers - (Pair)

Overview

The Bowers & Wilkins 603 S3 is the flagship floor standing tower within the redesigned 600 Series lineup. Purpose-built to deliver incredible scale, effortless authority, and pristine musical accuracy to larger entertainment areas, this pair of towers serves as the ultimate foundation for high-performance stereo listening or premium home theater systems. By integrating advanced acoustic engineering originally developed for the high-tier 700 Series, the 603 S3 reproduces dense musical arrangements and complex cinema soundtracks with remarkable transparency, ensuring your favorite media is felt just as much as it is heard.

Simcoe Audio Video Insight

For open-concept living rooms and spacious basement media centers throughout Central Ontario, filling a large volume of air with clean, unstrained sound can be a real challenge for smaller speakers. The 603 S3 towers handle this demand beautifully by deploying a dedicated three-way driver topology. By isolating the critical vocal frequencies within an independent 6-inch Continuum™ FST™ midrange driver and leaving the heavy low-end lifting to two dedicated 6.5-inch paper-cone bass woofers, these towers remain perfectly composed even when pushed to theater-level volumes. The soundstage is remarkably wide and deep, casting a vivid acoustic image that projects well beyond the physical cabinets themselves. It brings a true luxury theater experience into a highly accessible profile.

Best for the Bowers & Wilkins 603 S3: position these towers at least two feet away from the rear boundary wall and gently toe them inward toward your primary seating position to snap the center vocal image into razor-sharp focus.

More Details

Why It Wins

  • All-New Titanium Dome Tweeter: Introduces a dual-layer 1-inch titanium diaphragm that pushes high-frequency breakup out to a refined 38kHz, delivering exceptionally smooth, detailed treble.
  • FST Continuum Midrange Technology: Features the iconic woven composite cone that completely bypasses traditional outer surround resistance, resulting in startlingly realistic, uncolored vocal presentations.
  • Dual Coupled Bass Woofers: Combines two high-stiffness 6.5-inch paper cones to deliver rapid, impactful low-frequency notes that stay perfectly synchronized with fast action sequences.

What Makes It Different

While many entry-to-mid level floor standing speakers resort to simple two-way designs that force a single driver to handle both deep bass notes and delicate vocals simultaneously—causing the midrange to sound muddy—the 603 S3 operates as a pure three-way monitor array. Every major frequency bandwidth has a driver optimized solely for that specific task. Furthermore, the internal wood cabinet features extensive interlocking internal matrix bracing to damp mechanical panel vibrations, ensuring that the sound you hear comes purely from the premium drivers rather than a rattling speaker box.

Technical Highlights

  • 700-Series Grade Terminal Layout: Outfitted with an improved, side-by-side horizontal rear terminal plate that shortens the internal signal path and fully supports bi-wired or bi-amped cable configurations.
  • Acoustically Transparent Mesh Screen: Protects the sensitive new titanium dome with an ultra-open, progressive mesh cover borrowed directly from the brand’s reference-grade lines.
  • Dimpled Flowport Integration: Employs an aerodynamically contoured, dimpled reflex port to optimize air transit out of the cabinet, avoiding low-frequency turbulence and chuffing.

Buyers Guide

Who This Is For

  • The Passionate Two-Channel Audiophile: Music lovers looking to establish a high-end stereo listening room with a pair of towers that resolve hidden instrumental details across large rooms.
  • The Large-Scale Home Theater Builder: Entertainment enthusiasts assembling an uncompromising multi-channel system who want powerful, full-range front channels that handle heavy cinematic action.
  • The Detail-Oriented Modern Homeowner: Discerning buyers seeking a commanding, furniture-grade audio solution that complements luxury living room aesthetics while delivering room-filling sound.

Ideal Use Case

  • Expansive Great Rooms and Open Floorplans: Perfect for large residential spaces, vaulted ceilings, or open layouts where smaller monitors or soundbars lose punch and clarity.
  • Dedicated Private Cinema Spaces: Acts as the absolute anchor for premium 5.1, 7.1, or Dolby Atmos surround configurations, matching effortlessly with 600 Series surrounds and centers.

What To Pair It With

  • High-Current Integrated Amplifiers: Pair with a robust, high-current separate amplifier or premium integrated amp delivering 30W to 200W of clean power to maximize low-end grip and control.
  • Voice-Matched 600 Series Centers: Pair directly with the Bowers & Wilkins HTM6 S3 center channel speaker to create an unbroken, perfectly timber-matched front sound wall.
  • Included Stability Plinths and Spikes: Utilize the heavy-duty base plinths and included carpet spikes (or protective rubber feet for hardwood) to mechanically anchor the cabinet and tighten bass response.

Alternative Options

The Bowers & Wilkins 603 S3 is the ultimate full-range performance value in this category. If your entertainment space is a bit more compact or you are integrating a pair of high-performance subwoofers for the low-end, the smaller Bowers & Wilkins 606 S3 standmount monitors provide identical tweeter and midrange technology in a smaller footprint. On the flip side, if you want to take a massive step forward in absolute resolution, cabinet refinement, and midband texture, ascending to the three-way Bowers & Wilkins 704 S3 or 703 S3 floorstanders introduces decoupled midrange chassis and advanced slimline cabinet profiles.

Bowers & Wilkins 603 S3 Floor Standing Speakers - (Pair) Specifications

General Information
Model 603 S3
Brand Bowers & Wilkins
Type 3-way vented-box floorstanding loudspeaker system (Pair)
Available Finishes Black, White, Oak
Grille Colors Black (with Black cabinets), Grey (with White and Oak cabinets)
Driver Specifications
High-Frequency Driver 1x ø25mm (1 in) Titanium Dome high-frequency housed in an isolated decoupled assembly with an acoustically open mesh grille
Mid Frequency Driver 1x ø150mm (6 in) Continuum™ cone FST™ dedicated midrange driver featuring an advanced decoupled chassis
Mid/Bass Frequency Driver --
Bass Frequency Driver 2x ø165mm (6.5 in) Paper-cone bass drivers featuring rigid variable-thickness profiles
Passive Radiator --
Crossover Network & Control 3-way passive network optimized with 700-series grade bypass capacitors; bi-wire/bi-amp ready horizontal rear terminal tray
Acoustic Performance
Frequency Response On-Axis 46Hz - 28kHz ±3dB from reference axis
Frequency Range 29Hz to 33kHz (-6dB)
Low Frequency Extension Reflex bass-loading managed via rear-firing Flowport™ system with modular foam tuning inserts
Signal to Noise Ratio / Distortion Harmonic Distortion (90dB, 1m on axis): <1% 100Hz - 22kHz / <0.5% 350Hz - 12kHz
Input Impedance / Sensitivity Nominal: 8Ω (minimum 3.0Ω) / Sensitivity: 90dB spl (2.83Vrms, 1m)
Power & Construction
Suitable Amplifier Power Range 30W - 200W into 8Ω on unclipped programme
Maximum Input Power / Cable Rec. Maximum recommended cable impedance: 0.1Ω
Cabinet Build Heavy-duty wood composite enclosure featuring comprehensive internal matrix bracing and isolated driver compartments
Isolation Foot System Heavy-duty threaded stabilization plinth included; includes adjustable floor spikes and protective rubber feet
Dimensions & Weight (Per Speaker)
Cabinet Dimensions Only (h x w x d) 38.8" x 7.5" x 13.4" (98.5 cm x 19.0 cm x 34.0 cm)
Full Dimensions with Plinth & Spikes 40.2" x 10.2" x 15.8" (102.0 cm x 26.0 cm x 40.2 cm)
Weight 60.6 lbs (27.5 kg)

Bowers & Wilkins 603 S3 Floor Standing Speakers - (Pair) FAQs