MartinLogan Dynamo™ 500

Powered subwoofer

Item #: 839DY500B

Out of Stock

Expected: 12/29/2014 Reserve yours risk-free

Be the first to write a review | Ask Questions

Your price: $499.99 Earn up to 500 Rewards points

Add to Cart Free Shipping Lifetime Tech Support

+ Add to wishlist

View all associated offers

Hear the bass you've been missing

Whether you're watching movies or listening to music in your home theater, don't shortchange yourself on the low end. Get plenty of deep bass with the powerful yet compact MartinLogan Dynamo 500. Its 10-inch front-firing driver and 120-watt amplifier will help fill in those low frequencies that even most tower speakers can't quite reproduce. Movie effects will have more impact and music will sound fuller and richer with this subwoofer on the job.

MartinLogan Dynamo 500 powered subwoofer

The Dynamo 500 offers rear-panel volume control, phase switch, and crossover control with a bypass switch.

It's not just about more bass

As a preeminent speaker manufacturer, MartinLogan knows great bass is about more than just quantity. So they designed the Dynamo 500 to deliver excellent bass accuracy as well. Both the driver structure and the built-in amp are configured to minimize distortion and noise, so this sub's bass output is not only ample, but clean and tight as well. Two rear ports efficiently enhance the low-frequency output without introducing port-induced distortion. This ensures the Dynamo 500 is a great match for both movies and music, not to mention MartinLogan's impressive lineup of speakers.

Want to make the Dynamo 500 a wireless sub? Check out the MartinLogan SW2-TRD wireless kit.

Product Highlights:

  • frequency response 29-200 Hz (±3dB)
  • built-in amplifier delivers 120 watts of continuous power, 360 watts peak output
  • continuously variable low-pass 50-200 Hz crossover
  • 10" polypropylene woofer cone
  • bass-reflex (ported) enclosure
  • dual low-turbulence ports for maximized bass output with minimal port induced distortion
  • rear-mounted phase switch, volume level, and crossover controls
  • auto on/off
  • line-level/LFE RCA input
  • black ash finish
  • 13-1/16"W x 14-3/4"H x 15-13/16"D
  • weight: 28.5 lbs.
  • warranty: 3 years (with product registration)
  • Our 60-day money-back guarantee

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.

Hands-on research

What's in the box?

  • Powered subwoofer
  • Cloth grille
  • 10' AC power cord
  • User's Manual (En/Fr)
  • Product Registration Card

Product Research

Features

Dynamo Series Powered Subwoofer: Perfect for either home theater or stereo applications, the MartinLogan Dynamo 500 powered subwoofer is solidly built with high-density materials to minimize cabinet resonance and provide a foundation for the high-output 10" woofer and high-current 120-watt RMS (360-watt peak) amplifier. Additionally, dual rear-mounted low-turbulence ports maximize bass output while minimizing port induced distortion.

120-Watt RMS (360-Watt Peak) Amplifier: The MartinLogan Dynamo 500's amplifier belongs to a recently-developed class of switch-mode designs that incorporate a variety of innovative techniques to reduce noise, distortion, and heat to the lowest possible levels. In particular, the switching frequency is much higher than in typical subwoofer amplifiers of this type, providing a tremendous true 120-watts continuously (360-watts peak) with extremely low distortion.

Low-Distortion 10" Woofer: The Dynamo 500's high-resolution front-firing driver combines a 10" polypropylene cone with a high-intensity magnet structure to achieve huge excursion and output capability without sacrificing detail. By eliminating cone flexure, even at long voice-coil excursions, the Dynamo 500's advanced-technology bass driver achieves the very low distortion necessary for proper blending with MartinLogan's Folded Motion and electrostatic speakers.

High-Density Cabinet Construction: The powered subwoofer's cabinet is constructed from the finest composite material for acoustical integrity and is finished with an attractive wood-grain vinyl coating.

Dual Low-Turbulence Ports: Ports are a convenient and cost-effective way of increasing low-frequency output. The Dynamo 500's dual low-turbulence ports are carefully designed to provide superb low-end efficiency while minimizing port induced distortion.

Seamless System Integration: Comprehensive connection options, low-pass filtering, and phase control make integrating the Dynamo 500 subwoofer into a multichannel 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 50 to 200 Hz. For systems in which the AV receiver supplies the low-pass crossover, the Dynamo 500 offers an LFE input that bypasses its internal filters. The phase control can be set to 0- or 180-degrees.

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 500 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.

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.

Be the first to review this product
Great Gear Giveaway

Submit a review and then enter to win a $500 rewards card

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Get everything you’ll need to enjoy your new MartinLogan Dynamo™ 500

Use a high-quality subwoofer cable for bass that draws you into your movies and music. A cable is not included with this sub.
Protect your investment from power surges and interference.
Free you sub from wires with this wireless kit.
Replace your in-the-box stereo RCA cable with a higher-quality one. Used to connect a TV without a digital output to your speaker system.
Have your new equipment installed by qualified professionals.
Replace your in-the-box cable with a better one. If your TV has an optical digital output, use this type of cable to connect it to your speaker system.
Monster Cable® 600sw

Monster Cable® 600sw

Subwoofer cable (4 meters/13.2 feet)

Item #: 119SW6004M

(24)

$59.95
Add to Cart
Monster Cable® 400sw

Monster Cable® 400sw

Subwoofer cable (4 meters/13.2 feet)

Item #: 119SW4004M

(32)

$39.95
Add to Cart
AudioQuest Black Lab

AudioQuest Black Lab

Subwoofer cable (16 meters/52.5 feet)

Item #: 703BLAB16M

(6)

$104.99
Add to Cart
Monster Cable® 400sw2

Monster Cable® 400sw2

Subwoofer cable (12 feet)

Item #: 119140711

$49.99
Add to Cart
CableTruth 303S

CableTruth 303S

Subwoofer cable (9 ft.)

Item #: 865SBCBL9F

(5)

$29.99
Add to Cart
AudioQuest Irish Red

AudioQuest Irish Red

Subwoofer cable (12 meters/39.4 feet)

Item #: 703IRED12M

(1)

$179.99
Add to Cart
AudioQuest Boxer

AudioQuest Boxer

Subwoofer cable (2 meters/6.6 feet)

Item #: 703BXER2M

$159.99
Add to Cart
Panamax MD2

Panamax MD2

Space-saving surge protector with two outlets

Item #: 299MD2

(8)

$39.99
Add to Cart
MartinLogan SW2-TRD

MartinLogan SW2-TRD

Wireless subwoofer adapter kit

Item #: 839SW2TRD

$199.99
Add to Cart
AudioQuest Evergreen

AudioQuest Evergreen

Stereo interconnect cable with RCA plugs (8 meters/26.3 feet)

Item #: 703EGRR8M

(40)

$83.99
Add to Cart
Monster Cable Stereo Audio 400i

Monster Cable Stereo Audio 400i

Stereo interconnect cables with RCA plugs (1 meter/3.3 ft.)

Item #: 119MC4001M

(7)

$39.95
Add to Cart
Monster Cable Stereo Audio 200i

Monster Cable Stereo Audio 200i

Stereo interconnect cables with RCA plugs (2 meters/6.6 ft.)

Item #: 119MC2002M

(15)

$29.95
Add to Cart
AudioQuest Golden Gate

AudioQuest Golden Gate

Stereo interconnect cable with RCA plugs (8 meters/26.3 feet)

Item #: 703GGRR8M

(17)

$138.99
Add to Cart
AudioQuest Big Sur

AudioQuest Big Sur

Stereo interconnect cable with RCA plugs (5 meters/16.4 feet)

Item #: 703BSRR5M

(4)

$228.99
Add to Cart
CableTruth 303A

CableTruth 303A

Stereo interconnect cable with RCA plugs (6 ft.)

Item #: 865RCA6FT

(5)

$19.99
Add to Cart
AudioQuest Hard RCA Splitter

AudioQuest Hard RCA Splitter

1-male-to-2-female audio splitter

Item #: 703M22FRHD

(3)

$12.94
Add to Cart
AudioQuest FLX-X RCA Y-Adapter

AudioQuest FLX-X RCA Y-Adapter

1-male-to-2-female audio Y-adapter

Item #: 703M22F

(3)

$16.94
Add to Cart
Monster Cable Y-adapter

Monster Cable Y-adapter

1 male to 2 female

Item #: 119IHPY2F2

(4)

$14.95
Add to Cart
Monster Cable RCA Audio Y-adapter

Monster Cable RCA Audio Y-adapter

2 male to 1 female

Item #: 119IHPY1F2

(1)

$14.95
Add to Cart
AudioQuest FLX-X RCA Y-Adapter

AudioQuest FLX-X RCA Y-Adapter

1-female-to-2-male audio Y-adapter

Item #: 703F22M

$16.94
Add to Cart
AudioQuest SorboGel Q Feet

AudioQuest SorboGel Q Feet

4 pack

Item #: 703SQFEET

$98.99
Add to Cart
IsoAcoustics ISO-L8R200Sub Monitor Stand

IsoAcoustics ISO-L8R200Sub Monitor Stand

Supports subwoofer or large single monitor

Item #: 892L8R200S

$49.99
Add to Cart
Monster 400df02

Monster 400df02

Optical digital audio cable (4 feet)

Item #: 119140713

$29.99
Add to Cart

Questions & Answers Ask the community. Share your knowledge.

Looking for more? Check out the next model in this lineup.

MartinLogan Dynamo 700W

Get more setup flexibility and more power

The MartinLogan Dynamo™ 700W offers these features:

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