Short answer: the MartinLogan Motion XT C100. It ranks #34 of 98 center channel speakers by sound quality, rated 3.9/5, at $1,599.99. The MartinLogan Motion C10 ranks #44, rated 3.7/5, at $1,099.99, $500 cheaper, a saving that is not big enough to make up the sound-quality gap.
Why pick the MartinLogan Motion XT C100: Flagship 2.5-way center channel featuring larger Gen2 FMT XT tweeter with 40% more surface area and dual 6.5-inch Nomex-reinforced Kevlar woofers. The catch: Large 24-inch cabinet depth and width require substantial shelving.
What the MartinLogan Motion C10 does well: McCracken-Vojtko 2.5-way crossover rolls off the outer woofer early, significantly mitigating horizontal lobing suckouts. The tradeoff: 4-ohm nominal impedance requires an amplifier capable of stable low-impedance drive.
Buy the MartinLogan Motion XT C100. It is rated higher for sound quality, and the $500 you would save on the MartinLogan Motion C10 does not close the gap.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| MartinLogan Motion XT C100 | MartinLogan Motion C10 | |
|---|---|---|
| Price | $1,599.99 | $1,099.99 |
| Ranked | #34 of 98 in Center Channel Speakers | #44 of 98 in Center Channel Speakers |
| Drivers | 1.25” x 2.4” Gen2 Obsidian FMT XT, 2 x 6.5” (165mm) Nomex-reinforced Kevlar woofers | 1” x 1.4” Gen2 Obsidian FMT, 2 x 5.5” (140mm) woven fiberglass woofers |
| Frequency Response | 42Hz - 25kHz (±3dB) | 63Hz - 25kHz (±3dB) |
| Sensitivity | 93dB (2.83V/1m) | 91dB (2.83V/1m) |
| Impedance | 4 ohms nominal | 4 ohms nominal |
| Dimensions | 8”H x 24”W x 14.5”D (203 x 610 x 368 mm) | 7.2”H x 19”W x 10.5”D (184 x 483 x 267 mm) |
| Weight | 34 lbs (15.4 kg) | 22.9 lbs (10.4 kg) |
| DIY Kit | No | No |
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Prices on this page were last checked October 5, 2026 at 10:21 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
MartinLogan Motion XT C100: $1,599.99 Estimated Crutchfield eBay
Pros: Flagship 2.5-way center channel featuring larger Gen2 FMT XT tweeter with 40% more surface area and dual 6.5-inch Nomex-reinforced Kevlar woofers. High 93dB sensitivity and extended low-end response down to 42Hz.
Cons: Large 24-inch cabinet depth and width require substantial shelving. 4-ohm nominal impedance demands robust amplification. Rating estimated from Motion XT testing.
Full MartinLogan Motion XT C100 review and specifications →
| DIY Kit | No |
|---|---|
| Dimensions | 8”H x 24”W x 14.5”D (203 x 610 x 368 mm) |
| Drivers | 1.25” x 2.4” Gen2 Obsidian FMT XT, 2 x 6.5” (165mm) Nomex-reinforced Kevlar woofers |
| Frequency Response | 42Hz - 25kHz (±3dB) |
| Impedance | 4 ohms nominal |
| Sensitivity | 93dB (2.83V/1m) |
| Weight | 34 lbs (15.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
MartinLogan Motion C10: $1,099.99 Estimated Crutchfield eBay
Pros: McCracken-Vojtko 2.5-way crossover rolls off the outer woofer early, significantly mitigating horizontal lobing suckouts. Gen2 Obsidian Folded Motion Tweeter provides smooth treble with high transient speed and low distortion.
Cons: 4-ohm nominal impedance requires an amplifier capable of stable low-impedance drive. Rating estimated based on measured Motion series sibling performance.
Full MartinLogan Motion C10 review and specifications →
| DIY Kit | No |
|---|---|
| Dimensions | 7.2”H x 19”W x 10.5”D (184 x 483 x 267 mm) |
| Drivers | 1” x 1.4” Gen2 Obsidian FMT, 2 x 5.5” (140mm) woven fiberglass woofers |
| Frequency Response | 63Hz - 25kHz (±3dB) |
| Impedance | 4 ohms nominal |
| Sensitivity | 91dB (2.83V/1m) |
| Weight | 22.9 lbs (10.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons