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REMOVING THE ARCHILLES HEEL - The Continued Evolution of the Electrostatic
Martin Logan has long been regarded as manufacturing one of the finest electrostatic speakers available anywhere at any price. Martin Logan has grown from a small specialty manufacturer in Lawrence, Kansas to a multinational manufacturer with a global presence. The steady evolution of their electrostatic speakers over the decades has resulted in a mature and refined product that doesn't take up the same large silhouette or imposing physical footprint of its predecessors.

The ML design team has been able to achieve improved lateral dispersion enabling a wider listening window and more stable impedance characteristics make it much easier to drive.

Their latest effort is the Ethos, a speaker that has been refined and sculpted into a speaker worthy of the highest accolades, yet doesn't’t make you change your listening positions or amplifier choices. Now this is progress.

“Considering that the Ethos is one of the most musically satisfying speakers I have heard in my room, I also have to say that, at $6795, it’s a flat-out bargain.”

Jason Thorpe, SoundStage HIFI.

ELECTROSTATIC PERFORMANCE WTHOUT THE LIABILITIES
Electrostatic speakers have always had a special “magic” and nobody does it better than Martin Logan. Martin Logan has been honing their electrostatic craft for over 30 years, and the new Ethos is the result of that effort. The Ethos introduces new technologies and refinements of existing ones. Descended from the acclaimed CLX speaker, Ethos features advanced XStat™ electrostatic panels and features the new active woofer/subwoofer skillfully integrated via a proprietary Vojtko crossover. These advancements combine for three significant benefits:

  • Higher speaker efficiency (92dB)
  • Easier impedance curve enabling lower wattage power amps to be used,
  • Seamless and coherent integration between electrostatic panel and dynamic woofer
  • Deep, powerful yet articulate bass down to 34 Hz.
Its always been about control. The Ethos’ 24-Bit Vojtko DSP Engine and 200-watt subwoofer amplifier creates powerful, detailed bass from a custom designed front-firing 8-inch aluminum-cone woofer and precisely matched down-firing 8-inch passive radiator. The passive radiator enhances bass output, much like a port, but without port induced noise and midrange resonance. The onboard integrated subwoofer amplifier gives the speaker so much more control and extension.

“Martin Logan’s XStat panel in the Ethos is probably the best electrostatic driver I have ever heard, and this alone hoists it way up above most other loudspeakers. That makes the Ethos one of the best loudspeakers available at the price - quite an achievement.”

HIFI WORLD, United Kingdom
EXECUTIVE SUMMARY

BRIEF: The Martin Logan ETHOS sets a new precedent for performance It has been ranked by media reviewers as one of the best speakers available anywhere, at ANY price. At $6,795, the ETHOS sets a new level of performance that is some ways, such as transparency and openness that are unsurpassed by conventional moving coil design speakers.

POINT: The new X-Stat electrostatic panel gives world class acoustic performance no matter where you sit, and allows for a lower wattage amplifier to be implemented. This in itself isn't an advantage. What it really gives you - is a wider stable of suitable amps - to choose from. And that is an advantage. The integrated powered subwoofer offers seamless performance between the panel and the woofer and this integration really questions the need for an auxiliary subwoofer. All in all, this speaker is a world beater.

COUNTERPOINT: The only liability of the ETHOS is the price. At $6,795, it isn't exactly cheap, but they deliver way beyond your expectations. The speakers, while smaller than the electrostatic panels of years ago, are not the size of a cup of cappuccino, so you and your sweetie better like the look of them.

Our conclusion: Martin Logan's ETHOS is the result of 30 years of hard work, dedication and commitment to the refinement of the electrostatic craft. No they're not cheap, but things of this caliber rarely are. If you're looking for one of the finest speakers in the world - you just found them.

Martin Logan ETHOS   NOTES
Frequency Response 24-21,000Hz  
Sensitivity 92dB / 2.83 volts / meter  
Impedance 4 Ohms @ 20kHz Compatible with 4/6/8 ohm rated amplifiers
High/Mid Frequency Driver 44" x 9.2" panel  
Low Frequency Driver one 8" woofer / aluminum cone  
Low Frequency Driver one 8" passive radiator / polycone  
Active Woofer amplifier 200 watts  
Warranty 5 years Parts & Labor Excellent warranty - includes active sub!

details

  • FREQUENCY RESPONSE: 34–23,000 Hz ±3dB
  • TRANSDUCER: XStat™ CLS™ electrostatic transducer
  • PANEL DIMENSIONS: 44" × 9.2" (111.8 × 23.4cm)
  • BASS DRIVER - Active: 8" (20.3cm) cast basket, high excursion, aluminum cone.
  • BASS DRIVER - Passive: 8" (20.3cm) cast basket, high excursion, polypropylene cone passive radiator.

...details

  • Active woofer amplifier: 200 watts/channel (4 ohms)
  • Speaker sensitivity: 92 dB/2.83 volts/meter
  • Impedance: 4 Ohms, 0.8 at 20kHz. Compatible with 4, 6, or 8 Ohm rated amplifiers.
  • Recommended amplifier power: 20‒500 watts per channel
  • Weight: 42 lbs. (19 kg)
  • Dimensions: 59.33" × 10.73" × 18.23"

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