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KEF Q550 vs MartinLogan ElectroMotion ESL X

Comparison and Difference Between

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Brand and Model Specifications

Information about the brand, model release date.

Manufacturer KEF MartinLogan
Model Q550 ElectroMotion ESL X
Photo
Release Date 2017 2016
HifiSpecs Rating
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Price
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Technical Specs

Technical characteristics of the speakers.

Amplification Type Passive Passive
Crossover Type 2½-way 2-Way
Enclosure type Bass Reflex Bass Reflex
Frequency Range (+/-3 dB)[Hz] 58 - 28000 41 - 22000
Frequency Range (-6dB)[Hz] - -
Maximum SPL [dB] - -
Sensitivity (2,83 V/1 m)[dB] 87 91
Nominal Impedance (Ohms) 8 6
THD (Total Harmonic Distortion) - -
Recommended Amplifier Power [W] 15-130 20-400
Crossover Frequency [Hz] 2500 400
Bass Reflex Tuning Frequency [Hz] - -
Driver Units

Tweeter: 130mm (5.25in.) aluminum Uni-Q
25mm (1in.) vented aluminum dome HF
Mid/Bass Drivers: 130mm (5.25in.) aluminum LF
2x 130mm (5.25in.) aluminum ABR

Tweeter: XStat™ CLS™ electrostaic transducer
Mid/Bass Drivers: Two 8” (20.3 cm) high excursion, high-rigidity paper cones with extended throw driver assembly
Connectivity Wired Wired
Inputs Single Wire Single Wire
Outputs - -
Magnetic Shielding No No

Placements and Distances

Where and how to put them.

Form Factor Floor Floor
Distance from Wall [cm] 15 15

Dimensions and Weight

Physical characteristics of the speakers (without stands).

Length ~7.08 in
~179.83 mm
~17.98 cm		 ~9.4 in
~238.76 mm
~23.88 cm
Width ~10.94 in
~277.88 mm
~27.79 cm		 ~20.7 in
~525.78 mm
~52.58 cm
Height ~34.37 in
~873 mm
~87.3 cm		 ~59.2 in
~1503.68 mm
~150.37 cm
Weight (Single Speaker) ~32 lb
~14514.96 g
~14.51 kg		 ~52 lb
~23586.8 g
~23.59 kg
Shipping Weight ~41.2 lb
~18688.01 g
~18.69 kg		 ~64.9 lb
~29438.14 g
~29.44 kg

Colors and Accessories

List of available colors and optional accessories.

Colors
  • Satin white
  • Satin black
  • Walnut
  • High gloss black
Accessories

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Detachable Grilles Yes No

Price and Warranty

Satisfaction is (not) guaranteed.

Warranty 5 Years 5 Years
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Review Comparison

Hifispecs' professional customer-reviews can help make up your mind.

Available Reviews
KEF Q550 Review
MartinLogan ElectroMotion ESL X Review

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