MartinLogan Motion XT B100 vs Monitor Audio Bronze 50 7G

The MartinLogan Motion XT B100 is more sensitive (93 dB vs 86 dB), so it plays louder per watt. The Monitor Audio Bronze 50 7G plays lower (41 Hz vs 45 Hz), is an easier load for a receiver (8 Ω vs 4 Ω) and costs less ($849 vs $850).

What each one works with

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

	Motion XT B100	Bronze 50 7G
Receivers and amps that drive it	28 of 29, 14 after a setting change	29 of 29

Specs side by side

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

	Motion XT B100	Bronze 50 7G
Impedance	4 Ω	8 Ω
Sensitivity	93 dB	86 dB (2.83 V, 1 m)
Low end	45 Hz	41 Hz
Drivers	1 × 32 mm, 1 × 165 mm	1 × 25 mm, 1 × 152 mm
Size	8×14×13 in	7×13×13 in
Recommended amplifier power	20–250 W	30–100 W
Weight	9.3 kg (20.5 lb)	6.4 kg (14.1 lb)
MSRP	$850 each (MSRP, September 2026)	$849 a pair (MSRP, September 2026)

Every spec and pairing: MartinLogan Motion XT B100, Monitor Audio Bronze 50 7G.

Try either one in your own room.

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Build with the Motion XT B100

Build with the Bronze 50 7G

References

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