KLH Model Four vs MartinLogan Motion F10

Short answer: the KLH Model Four. Both are rated 3.8/5 for sound quality (#161 and #157 of 226 floorstanding speakers), and the KLH Model Four costs $1,999.98 against $2,239.98 for the MartinLogan Motion F10, so with nothing between them on sound quality, price settles it.

The case for the KLH Model Four: A slim floorstanding member of KLH’s Model collection, with an 8” woofer and the same 4” midrange and 1” aluminum tweeter as the measured KLH Model Five (4.76 Spinorama preference score). Watch for: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured KLH Model Five.

The case for the MartinLogan Motion F10: 3-way floorstander with dedicated 5.5-inch fiberglass midrange and twin 5.5-inch aluminum woofers relieving the Gen2 Folded Motion tweeter of low-end duties. The tradeoff: Frequency response carries an upward treble tilt consistent with the Motion line voicing, resulting in a bright balance that can sound analytical in reflective rooms.

Buy the KLH Model Four. Both are rated the same for sound quality, and it costs $240 less than the MartinLogan Motion F10.

About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: KLH Model Four 3.4 to 4.1; MartinLogan Motion F10 3.6 to 4.0). Treat this verdict as provisional.

Want more options? Browse the full Passive Home rankings.

Specifications Side By Side

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How MartinLogan Motion F10 compares with other leading options:

• PSB Alpha T20 vs MartinLogan Motion F10
• MartinLogan Motion F10 vs SVS Prime Pinnacle
• Klipsch RP-8060FA II vs MartinLogan Motion F10
• MartinLogan Motion F10 vs SVS Prime Tower
• KLH Model Four vs Paradigm Monitor SE 8000F

Prices on this page were last checked October 11, 2026 at 4:59 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

KLH Model Four: $1,999.98 per pair Estimated Amazon eBay

Same family: the KLH Model Three (bookshelf, estimated 3.8/5), the KLH Model Five (larger floorstanding, ranked higher, rated 4/5) and the KLH Model Seven (larger floorstanding, ranked higher, estimated 4/5).

Pros: A slim floorstanding member of KLH’s Model collection, with an 8” woofer and the same 4” midrange and 1” aluminum tweeter as the measured KLH Model Five (4.76 Spinorama preference score). The sealed cabinet is only 210mm deep and can sit 6 inches from a wall. KLH rates it 46Hz to 20kHz (±3dB) and 35Hz at -10dB.

Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured KLH Model Five. Free-field sensitivity is 85dB and the impedance falls to 3.5 ohms at 120Hz, so it needs more amplifier power than its size suggests.

Full KLH Model Four review and specifications →

Bass Extension (-10dB)	35Hz (manufacturer specified)
Bass Extension (-3dB)	46Hz (manufacturer specified)
Crossover Frequency	380Hz, 2.5kHz
DIY Kit	No
Drivers	1” aluminum dome tweeter, 4” pulp paper midrange, 8” pulp paper woofer
Frequency Response	46Hz - 20kHz ±3dB (manufacturer specified)
Impedance	6 ohms nominal, 3.5 ohms minimum (manufacturer specified)
Sensitivity	85dB free-field, 88dB in-room (2.83V/1m, manufacturer specified)
Weight	47 lbs (21.3 kg) each (with stand)
Woofer Cabinet	sealed

• Links
  • Official KLH Model Four Product Page
• 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
  • KLH Model Four vs Paradigm Monitor SE 8000F
  • KLH Model Four vs SVS Prime Pinnacle
  • KLH Model Four vs KEF Q7 Meta

MartinLogan Motion F10: $2,239.98 per pair Estimated Best Buy eBay

Same family: the MartinLogan Motion B10 (bookshelf, rated 3.6/5), the MartinLogan Motion F20 (larger floorstanding, ranked higher, estimated 3.9/5), the MartinLogan Motion C10 (center, estimated 3.7/5) and the MartinLogan Motion MP10 (surround, estimated 3.5/5).

Pros: 3-way floorstander with dedicated 5.5-inch fiberglass midrange and twin 5.5-inch aluminum woofers relieving the Gen2 Folded Motion tweeter of low-end duties. Down-firing twin ports provide smooth low-frequency room coupling down to 38Hz.

Cons: Frequency response carries an upward treble tilt consistent with the Motion line voicing, resulting in a bright balance that can sound analytical in reflective rooms. 4-ohm nominal impedance requires stable amplification.

Full MartinLogan Motion F10 review and specifications →

Released	Feb 2023 (3 years ago)
Bass Extension (-3dB)	38Hz (manufacturer specified)
Crossover Frequency	280Hz, 3000Hz
DIY Kit	No
Dimensions	38.2”H x 11.3”W x 13.5”D (971 x 286 x 343 mm)
Drivers	1” x 1.4” Gen2 Obsidian Folded Motion Tweeter, 5.5” (14cm) woven fiberglass midrange, 2 x 5.5” (14cm) aluminum cone woofers
Frequency Response	38Hz - 25kHz (+/- 3dB, manufacturer specified)
Impedance	4 ohms nominal
Sensitivity	92dB (2.83V/1m, manufacturer specified)
Weight	50.5 lbs (22.9 kg) each
Woofer Cabinet	ported, down-firing twin ports

• Links
  • Official MartinLogan Motion F10 Product Page
• 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 F10 vs Klipsch RP-8060FA II
  • MartinLogan Motion F10 vs SVS Prime Pinnacle
  • MartinLogan Motion F10 vs SVS Prime Tower
  • MartinLogan Motion F10 vs PSB Alpha T20