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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 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 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.





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Net weight
27.5kg (60.6 lb)
Dimensions
Height: 985 mm (38.8 in) cabinet only
1,020 mm (40.2 in) including plinthWidth: 190 mm (7.5 in) cabinet only
260 mm (10.2 in) including plinthDepth: 340 mm (13.4 in) cabinet only
368 mm (14.5 in) including grille and terminals
402 mm (15.8 in) including plinth -
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 coneFrequency range
-6dB 29Hz - 33kHz
Harmonic distortion
2nd and 3rd harmonics (90dB, 1m on axis)
<1% 100Hz - 22kHz
<0.5% 350Hz - 12kHzNominal 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
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Cabinet finishes
Black
White
OakGrille finishes
Black (Black)
Grey (White and Oak)