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References

Front view — side by side at true scale

AQ Acoustics Concept 300BELAC Concentro S 503.2
Q Acoustics Concept 300 front view
ELAC Concentro S 503.2 front view

Click either cabinet to swap A ↔ B · Reference height: 15.7 in · 1 in = 35.56 px

Specifications

AB
ManufacturerQ AcousticsELAC
ModelQ Acoustics Concept 300ELAC Concentro S 503.2 2.0
Height14 in15.7 in
Width7.9 in8.6 in
Depth15.7 in14.6 in
Weight32 lb29.5 lb
Enclosurebass-reflex-rearbass-reflex-rear
Drivers1× 1.1 in tweeter (soft dome), 1× 6.5 in mid-bass (coated paper cone)1× tweeter (JET 6 pleated-folded ribbon), 1× 5.1 in midrange (aluminium AS-XR cone), 1× 7.1 in woofer (aluminium AS-XR cone)
Frequency — low55 Hz40 Hz
Frequency — high30000 Hz40000 Hz
Sensitivity84 dB87 dB
Impedance6 Ω4 Ω
Recommended amp25–200 W60–500 W
MAP (USD)$6,399 / pair$7,398 / pair
Where to buyCheck availabilityCheck availability
Brand websiteqacoustics.comelac.com
Product pageOpen product pageOpen product page

Larger value highlighted in green. For low-frequency extension, lower Hz = greater bass reach, so the deeper side is highlighted.