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Compare speakers at true scale

Pick two speakers and see them side by side at their real-world size.

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Speaker B
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References

Front view — side by side at true scale

AMartinLogan ElectroMotion ESL XBQ Acoustics Concept 50
MartinLogan ElectroMotion ESL X front view
Q Acoustics Concept 50 front view

Click either cabinet to swap A ↔ B · Reference height: 1503 mm (150.3 cm) · 1 mm = 0.37 px

MartinLogan ElectroMotion ESL XvsQ Acoustics Concept 50

The MartinLogan ElectroMotion ESL X stands 150.3 cm tall — about 47.6 cm more than the Q Acoustics Concept 50 at 102.7 cm. On footprint the Q Acoustics Concept 50 is the wider cabinet (39.6 cm versus 23.9 cm). Low frequencies come from a 203 mm cone on the MartinLogan ElectroMotion ESL X and a 125 mm cone on the Q Acoustics Concept 50. Both land in a similar price bracket, around $3,950 a pair.

TrueSpecs presentation

Specifications

mm / kgin / lb
AB
ManufacturerMartinLoganQ Acoustics
ModelMartinLogan ElectroMotion ESL XQ Acoustics Concept 50
Height1503 mm1027 mm
Width239 mm396 mm
Depth526 mm321 mm
Weight23.6 kg22.9 kg
Enclosurebass-reflex-rearbass-reflex-rear
Drivers1× midrange (electrostatic (XStat CLS)), 2× 203 mm woofer (paper cone)1× 25 mm tweeter (soft dome), 2× 125 mm mid-bass (coated paper cone)
Frequency — low41 Hz42 Hz
Frequency — high22000 Hz30000 Hz
Sensitivity91 dB90.5 dB
Impedance6 Ω6 Ω
Recommended amp20–400 W25–150 W
MAP (USD)$4,000 / pair$3,899 / pair
Where to buyCheck availability ↗Check availability ↗
Brand websitemartinlogan.com ↗qacoustics.com ↗
Product pageOpen product page ↗Open product page ↗

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