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MartinLogan Dynamo™ 700W

Wireless powered subwoofer

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  • MartinLogan Dynamo™ 700W

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  • MartinLogan Dynamo™ 700W

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  • MartinLogan Dynamo™ 700W

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  • MartinLogan Dynamo™ 700W

    Closeup detail of subwoofer connections and controls

  • MartinLogan Dynamo™ 700W

    Closeup detail of subwoofer connections and controls

  • MartinLogan Dynamo™ 700W

    Direct front view (grille on)

  • MartinLogan Dynamo™ 700W

    Energy Transfer Coupler floor spikes

  • MartinLogan Dynamo™ 700W

    MartinLogan logo

  • MartinLogan Dynamo™ 700W

    Top view without grille

 

Our take on the MartinLogan Dynamo™ 700W

MartinLogan

Why add a powered subwoofer?

A powered subwoofer gives you bass you can feel as well as hear. Our customers love the depth and impact their subs add to music and movies. We hear comments like "it brings out sounds I didn't know existed in discs I've watched a million times." Powered subwoofers aren't just for big bass that rattles your picture frames; they can also deliver tight, accurate lows. If you haven't shopped for a powered sub in a while, you might be surprised at how small they get. Look for an ultra-compact model if you want to tuck your sub away under an end table or in a corner.

A sub that fits where you want it

Ever have trouble finding the perfect spot for your sub? Well, with MartinLogan's Dynamo 700W subwoofer, you'll have lots of options. This versatile sub's standard down-firing setup is perfect for placing it in corners or along side walls. But if you're looking for a more discreet placement such as in a cabinet with your other home theater gear, you can easily convert it into a front-firing sub by simply removing and reorienting its detachable feet.

Read more

MartinLogan Dynamo 1500X converting from front- to down-firing.

Wireless convenience right out of the box

Even if you're willing to place your sub far from your receiver, you might not want a long wire running between the two. No worries, thanks to the 700W's built-in wireless receiver and included transmitter. So you can feel those deep rumbling movie sound effects without tripping over a cable when you get up to get more popcorn.

Not just for explosive movie soundtracks

When you add a subwoofer to your full-range speaker system, your movies and music will sound fuller and more dramatic. The Dynamo 700W accomplishes this without taking up valuable real estate in your living room or home theater. The sealed enclosure is constructed of high-density materials and reinforced with solid internal bracing to minimize cabinet resonance for cleaner sound. The 10-inch speaker is driven by a high-powered built-in amplifier that delivers 300 watts of continuous, clean power. Both are optimized for low noise and distortion, to produce bass that is not only bold, but detailed and tight rather than loose and boomy. That makes this sub a great performer with movies and music — not to mention a great match with MartinLogan's fine lineup of full-range speakers.

MartinLogan Dynamo 700W powered subwoofer with wireless transmitter

The Dynamo 700W's detachable feet let you easily orient the woofer in a down- or front-firing configuration.

Highlights:

  • wired or wireless connection options with built-in wireless receiver and included transmitter
  • frequency response 24-200 Hz (±3dB)
  • built-in amplifier delivers 300 watts of continuous power, 600 watts peak output
  • ultra-efficient variable audio tracking power supply drives a class AB output stage for lower distortion and noise than typical Class D switching amps
  • 10" polypropylene woofer cone
  • sealed (acoustic suspension) cabinet with convertible front- or down-firing design
  • continuously variable low-pass 35-120 Hz crossover
  • rear-mounted 3-position phase switch, volume level, and crossover controls
  • auto on/off
  • line-level/LFE RCA input
  • included Energy Transfer Coupler (ETC) spikes can be used for tighter coupling between subwoofer and floor to enhance sound quality
  • black ash finish
  • 11-11/16"W x 12-9/16"H x 12-7/8"D (down-firing orientation); 11-11/16"W x 13-1/2"H x 12-5/16"D (front-firing orientation)
  • weight: 26.5 lbs.
  • warranty: 3 years (with product registration)
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Enclosure Acoustic Suspension
Video Shielded No
Woofer Size (inches) 10
Woofer Composition Poly
Firing Direction Down/Front
Wireless Yes
Preamp-Level Inputs Yes
Speaker-Level Inputs No
Speaker-Level Outputs No
Low-Pass Crossover Freq 35-120
High-Pass Crossover Freq N/A
Phase Switch Yes
Amplifier Output (watts) 300
Frequency Response 24-200 Hz
Height (inches) 12-9/16
Width (inches) 11-11/16
Depth (inches) 12-7/8
Weight 26.5 lbs
Speaker Parts Warranty 3 Yrs w/ Registration
Speaker Labor Warranty 3 Yrs w/ Registration
Amplifier Parts Warranty 3 Yrs w/ Registration
Amplifier Labor Warranty 3 Yrs w/ Registration
Product Research
What's in the box?

Download owner's manual

  • Powered subwoofer
  • Wireless transmitter (SW-T)
  • AC power adapter (w/ attached 6' DC cord)
  • 10' AC power cord
  • Cloth grille
  • 4 Pre-installed rubber feet
  • 4 Spiked feet
  • 2 Righ-angle RCA adapters
  • User's Manual (En/Fr)
  • Product Registration Card

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Dynamo Series Powered Subwoofer: The MartinLogan Dynamo 700w powered subwoofer offers audiophile grade performance and home-friendly aesthetics. Featuring a high-current 300-watt RMS (600-watt peak) amplifier and a 10" cone driver, the Dynamo 700w delivers deep, tight, effortless bass for movie and music soundtracks. It can be configured as a down-firing or front-firing powered sub. The 700w offers both a wired and wireless powered subwoofer connection to your home AV entertainment system.

Advanced, Ultra-Efficient 300-Watt Amp: The Dynamo 700w's ultra-efficient, high-power amplifier uses variable audio tracking power supplies to drive its class AB output stage. With lower distortion and less noise than typical Class D switching amplifiers, this advanced design allows the amplifier to operate at much higher efficiencies than a typical class AB amplifier, delivering a true 300-watts of continuous power (600-watts peak).

High-Resolution, Low-Distortion 10" Woofer: The Dynamo 700w's advanced-technology driver pairs a high-power magnet structure with a 10" poly diaphragm to deliver huge excursion and sound output while perfectly preserving the tiniest bass detail; and all without a hint of distortion. The exceptional damping properties of the poly cone material also ensure the smooth, non-resonant response necessary for truly seamless blending with MartinLogan's electrostatic panel and Folded Motion driver technologies found in their loudspeakers.

Inverse Mathematical Equalization (IME) Filtering: An IME filter is derived from the inverse of the unfiltered driver response. Precision IME filtering yields extremely accurate low-frequency response; far superior to that provided by the simple second-order high-Q filters typically found in subwoofers in this price range.

Sealed Cabinet w/ Internal Bracing: On the outside, the Dynamo 700w's cabinet is constructed from the finest composite material for acoustic integrity. Inside, critically placed structural cross-bracing acts an excellent baffle for the woofer while the added rigidity keeps cabinet-induced resonances and non-linearities to inaudible levels. As a result the MartinLogan Dynamo 700w maintains a smooth, consistent response regardless of music or movie source material.

Front-Firing or Down-Firing Configuration: To maximize performance when installed inside of a cabinet or other discrete installation, the Dynamo 700w's standard down-firing configuration easily converts into a front-firing orientation; no tools required. A grille cover and 90-degree RCA adaptors are provided for use in front-firing applications. Dimensions:

  • Down-Firing Orientation (default): 11.6875" (w) x 12.5625" (h) x 12.875" (d)
  • Front-Firing Orientation: 11.6875" (w) x 13.5" (h) x 12.3125" (d)
Note: If placing the powered subwoofer inside of a cabinet, it is recommended that there be a minimum of 3" of open space between the cabinet and the front and back sides of the powered sub.

Seamless System Integration: Comprehensive connection options, low-pass filtering, and phase control make integrating the Dynamo 700w subwoofer into a multi-channel home theater or stereo music setup simple and seamless. The main left/right line-level inputs feed into a precision low-pass filter with a cut-off frequency variable from 35 to 120 Hz. For systems in which the AV receiver supplies the low-pass crossover, the Dynamo 700w offers an LFE input that bypasses its internal filters. The phase control can be set to 0, 90, or 180-degrees.

Built-in Wireless Receiver: Although correct placement plays a key role in optimizing subwoofer performance, sometimes it imposes the inconvenience of running long lengths of cable through walls, along baseboards, or under floors and carpets. To solve the problem, the Dynamo 700w incorporates a wireless receiver (digital RF transmission) for use with the included SWT-2 MartinLogan Subwoofer Wireless Transmitter which plugs into the subwoofer or LFE output of your home receiver or active soundbar speaker via stereo RCA (cable not included).

Energy Transfer Coupler (ETC) Spikes: The Dynamo 700w comes with custom ETC spikes which can be used along with the pre-installed rubber feet to enhance stability on thick carpets, or create tighter coupling between subwoofer and floor to enhance overall sound quality. The spiked feet add 0.625" of height to the powered sub.

Auto Power On/Off: The powered subwoofer will automatically enter a power saving mode when no audio signal is detected. The subwoofer will automatically come out of power saving mode when an audio signal is detected.

Break-In Period: The Dynamo 700w woofer requires approximately 50 hours of break-in at moderate listening levels before its optimal performance occurs. This will factor in on any critical listening and judgment.

 
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MartinLogan Dynamo™ 700W Reviews

Average Customer Review:

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5 out of 5

MartinLogan Dynamo 700W

Written By Judge Tom, Olney Maryland on Sunday, May 18, 2014
Crutchfield Customer Review (What's this?)
 
Wireless feature is outstanding for difficult placement situations..Set up is effortless and they blend in perfectly with two Definitive Technology Studio Monitor 55's in a 12 by 20 ft room with large openings at either end.A larger sub would be superfluous.
Pros:
versatile and great value for the money
Cons:
none
Was this review helpful?    Yes | No
 
4 out of 5

Concert in the family room

Written By Calvin, Delray Beach, Fl on Friday, April 18, 2014
Crutchfield Customer Review (What's this?)
 
Awesome, I already had a sub and wanted to add a second. I'm using this one in wireless mode, no interference so far. The sound is great, still tweaking the placement and gain. I have it firing downward. Thinking about placing tape over blue light in back. Already I can tell it's the best sub in the house. The only problem was the first sub I got a random thumping noise, I advised Crutchfield and they immediately sent out another. This one worked perfectly. No regrets
Pros:
Great addition, I want to say it added warmth to the music. I'm playing a lot of old school R & B, the bass is tight.
Cons:
Non, so far
Was this review helpful?    Yes | No
 
4 out of 5

Very Solid Sub, with some minor quirks

Written By Luke, Charlotte, NC on Sunday, March 30, 2014
Crutchfield Customer Review (What's this?)
 
This is a very solid and powerful sub. I have it connected through my Martin Logan Motion View sound bar, and the sub delivers quite a punch when it's active. The key word there is active. If the volume on the sound bar is low or you're watching a sitcom or scene with not a lot of bass, the sub does go into stand by mode. And in order to get it active again, you have to turn the sound up in order for it to register. I have not determined whether this is attributed to the sub being connected through a wireless connection versus a direct connection into the sub. Also, there are times the sub doesn't register a signal during a non HD movie (meaning no surround sound). I would think the sub would still come on, but it does not.
Pros:
Powerful sound when hooked up Easy to connect via a wireless connection Configuration options to make it fire down or out
Cons:
Inconsistently goes in and out of stand by mode During scenes with heavy dialog and no background music or sound, the sub sometimes transmits a tick / popping sound. Don't know if that is because of wireless interference or something else
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

Powered Sub

Written By Whitney, Charlotte, NC on Monday, November 11, 2013
Crutchfield Customer Review (What's this?)
 
Great Product and Great Service.
Pros:
Great sound, easy to set up.
Cons:
None
Was this review helpful?    Yes | No
 
5 out of 5

Wireless Sub Woofer

Written By Perry S., Tulare,CA on Wednesday, October 16, 2013
Crutchfield Customer Review (What's this?)
 
Sounds as good as it looks. Located sub about 20ft. away from Yamaha receiver (which is located in an armoire) with no pick-up or distortion issues. If you want a wireless sub you certainly can't go wrong with this one.
Pros:
Quality. Ease of installation. No wires !!!!
Cons:
None
2 out of 2 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

MartinLogan Dynamo 700W

Written By cmac, CA on Sunday, September 01, 2013
Crutchfield Customer Review (What's this?)
 
Big sound. Wifi great. does make a cycling noise when going into energy saver mode that is disconcerting
3 out of 3 people found this helpful
Was this review helpful?    Yes | No
 

Add accessories for the MartinLogan Dynamo™ 700W

Use a high-quality subwoofer cable for bass that draws you into your movies and music. A cable is not included with this sub. See all categories & accessories

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For a more in-depth review and enhanced detailed information on the MartinLogan Dynamo™ 700W, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_839DY700B/MartinLogan-Dynamo-700W.html ).

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Compare with other MartinLogan models

  • MartinLogan Dynamo™ 700W
  • Get more setup flexibility and more power
  • 4.5 out of 5: In Stock
  • The MartinLogan Dynamo™ 700W offers
    • wireless connectivity with the built-in wireless receiver and included transmitter
    • easily converts from front-firing to down-firing configuration
    • built-in amplifier delivers 300 watts of continuous power, 600 watts peak output
  • Add To Cart
    $699.99
  • MartinLogan Dynamo™ 500
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      • frequency response 29-200 Hz
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  • MartinLogan Dynamo™ 1000W
  • Get a larger driver and more power
  • 4 out of 5: In Stock
  • The MartinLogan Dynamo™ 1000W offers:
    • built-in amplifier delivers 500 watts of continuous power, 1000 watts peak output
    • 12" polypropylene woofer cone
    • frequency response 22-200 Hz (±3dB)
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  • MartinLogan Dynamo™ 700W
  • Black - Subwoofer
  • 4.5 out of 5: In Stock
    • The MartinLogan Dynamo™ 700W offers:
      • 10" front/down-firing woofer with built-in 300-watt amplifier (continuous power)
      • wired or wireless connection options with built-in wireless receiver and included transmitter
      • frequency response 24-200 Hz
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  • MartinLogan Dynamo™ 1500X
  • Get even deeper, more powerful bass
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  • The MartinLogan Dynamo™ 1500X features:
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    • 650-watt RMS amplifier
    • compatibility with MartinLogan's Perfect Bass kit (not included), for precise bass tailored to your room and system
    • does not include wireless capability out of the box; compatible with MartinLogan's optional wireless subwoofer kit
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  • MartinLogan Dynamo™ 1000W
  • Black - Subwoofer
  • 4 out of 5: In Stock
    • The MartinLogan Dynamo™ 1000W offers:
      • 12" front/down-firing woofer with built-in 500-watt amplifier (continuous power)
      • wired or wireless connection options with built-in wireless receiver and included transmitter
      • frequency response 22-200 Hz
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  • MartinLogan Dynamo™ 1500X
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    • The MartinLogan Dynamo™ 1500X offers:
      • 15" woofer with built-in 650-watt amplifier (continuous power)
      • sealed (acoustic suspension) cabinet with convertible front- or down-firing design
      • frequency response 20-200 Hz
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    $1,599.99
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