MartinLogan Motion XT C100 vs Sonus faber Lumina Center I

The MartinLogan Motion XT C100 is more sensitive (93 dB vs 87 dB), so it plays louder per watt, plays lower (42 Hz vs 65 Hz) and is an easier load for a receiver (5 Ω vs 4 Ω). The Sonus faber Lumina Center I costs less ($1,000 vs $1,600).

What each one works with

Checked against every product in our catalogue by the same engine as the compatibility checker.

	Motion XT C100	Lumina Center I
Receivers and amps that drive it	28 of 29, 14 after a setting change	28 of 29, 14 after a setting change

Specs side by side

Values that differ are bold. A dash means that model doesn't publish the spec.

	Motion XT C100	Lumina Center I
Impedance	5 Ω	4 Ω
Sensitivity	93 dB	87 dB (2.83 V, 1 m)
Low end	42 Hz	65 Hz
Drivers	1 × 32 mm, 2 × 165 mm	1 × 29 mm, 2 × 120 mm
Size	24×8×14 in	21×7×8 in
Recommended amplifier power	20–300 W	30–100 W
Weight	15.4 kg (34 lb)	7.6 kg (16.8 lb)
MSRP	$1,600 each (MSRP, September 2026)	$1,000 each (MSRP, September 2026)

Every spec and pairing: MartinLogan Motion XT C100, Sonus faber Lumina Center I.

Try either one in your own room.

Draw your room in 3D, place it with the rest of your system, and see every connection checked. Designing is free.

Build with the Motion XT C100

Build with the Lumina Center I

References

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