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Main Content
Martin Logan Motion 4 Black Bookshelf Speaker - MO4BL
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Abt Model: MO4BL
UPC: 877929005368
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MO4BL - Martin Logan Motion 4 Glossy Black Compact Bookshelf Speaker (Sold As Each)
Audiophile Performance without an audiophile price
Inspired by the clarity and detail of our ultra-high-end electrostatic loudspeakers, Motion 4 features an exquisite Folded Motion™ tweeter and powerful bass technology in a compact and affordable package. Key to Motion 4’s performance is the lightning fast response of the tweeter’s light-weight diaphragm combined with a large surface area (8-times that of a typical one-inch dome tweeter) which together achieve a smooth, refined sound with stunning dynamic range and jaw-dropping clarity—certain to inspire envy in audiophiles and non-audiophiles alike.
Features:
- Folded Motion™ tweeter
- 4-inch woofer. Paper cone doped for stability and damping. Rigid dust cap. • Folded bass reflex port
- Precision Vojtko™ crossover with custom air core coil and low DCR steel laminate inductors, and polyester film and low DF electrolytic capacitors
- Bookshelf or on-wall installation
- Convenient push-style binding posts easily adapt to accept banana plugs.
Specifications:
- Frequency Response 70–25,000 Hz ± 3dB
- Sensitivity 90 dB/2.83 volts/meter
- Nominal Impedance 4 ohms. Compatible with 4, 6 or 8 ohm rated amplifiers
- Crossover Frequency 2900 Hz
- High Frequency Driver 1 x 1.4” (2.6 x 3.6cm) Folded Motion Transducer with 5.25 x 1.75” (13.3 x 4.4cm) diaphragm.
- Mid/Low Frequency Drivers 4” (10.2cm) poly cone.
- Power Handling 75 watts
Approximate Weight:
- Unit: 6 lbs
- Shipping: 7 lbs
Approximate Dimensions:
- Depth: 5.25"
- Height: 12.6"
- Width: 5.6"
Warranty Information:
- Manufacturer Warranty (authorized online retailer): 5 Year Limited Warranty
California customers:
General
Peak Power Handling (watts)
75W
Tweeter Size (in)
1 x 1.4
Woofer Size (in)
4
Frequency Response
70Hz - 25kHz +/- 3dB
Enclosure Material
Wood
Enclosure Type
Bass Reflex (Ported)
Impedance
4 ohms
Magnetic Shielding
No
Sensitivity
90dB spl (2.83 V/m)
Speaker Design
2-Way
Speaker Type
Bookshelf
Warranty Information
Parts Warranty
1 Year
Labor Warranty
1 Year
Approximate Weight
Unit Weight (lbs.)
6
Approximate Dimensions
Height (in)
12.6
Width (in)
5.6
Depth (in)
5.25
Guides
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