Martin Logan : ETHOS
Ethos is available in 3 hand-rubbed, real-wood finishes; black ash, dark cherry & teak*. * Our real-wood, highest grade Teak finish varies in color, figure, and texture, with no pairs looking exactly alike, making each set we manufacture unique. Photos shown should only be considered an example, reflecting Teak's beautifully natural, variable and complex character.. 24-Bit Vojtko™ Digital Signal Processing (DSP) Engine MartinLogan's dedicated in-house design & engineering team wanted to pack as much bass performance as possible into a sleek, compact design without compromising the detail, speed, and transparency required to keep up with our agile electrostatic panels. To accomplish this MartinLogan designed an extremely precise 24-Bit Vojtko DSP Engine in conjunction with a powerful 200-watt class-D amplifier to harness a stunning low-level performance—uncommon in cabinets this compact. Advanced Vojtko Filtering Proprietary Vojtko filtering technology is utilized for Ethos' electrostatic transducer. This audiophile quality network, derived from the CLX, is carefully hand-built using precision point-to-point wiring, polypropylene capacitors, massive air-core coils, and a custom wound E-I core transformer—flawlessly preserving micro-acoustic subtleties while effortlessly handling the broadest range of dynamics contained within even the most demanding sonic source. PoweredForce™ Woofer & Passive Radiator Dynamic Duo Ethos' 24-Bit Vojtko DSP Engine and 200-watt digital amplifier create powerfully detailed bass from a custom designed front-firing 8-inch aluminum-cone PoweredForce woofer and precisely matched down-firing 8-inch passive radiator. This unique radiator enhances bass output, much like a port, but without port induced noise and midrange resonance. Ethos' passive radiator utilizes a full woofer suspension design to achieve maximize linearity during massive excursion. Additionally, Ethos' proprietary intelligent DSP engine allowed our engineers to utilize a smaller-than-average passive radiator to obtain the appropriate level of bass performance required to flawlessly blend with the electrostatic panel while still maintaining a minimal footprint for the cabinet. |
requency Response | 34–23,000 Hz ±3dB |
Horizontal Dispersion | 30° |
Vertical Dispersion | 44" (112cm) line source |
High Frequency Transducer | XStat™ CLS™ electrostatic transducer |
» Panel Dimensions | 44" × 9.2" (111.8 × 23.4cm) |
» Radiating Area | 405 in2 (2,616 cm2) |
Low Frequency Transducer | 8" (20.3cm) cast basket, high excursion, aluminum cone with extended throw drive assembly, non-resonance asymmetrical chamber format. 8" (20.3cm) cast basket, high excursion, polypropylene cone passive radiator. |
Amplifier | Woofer: 200 watts/channel (4 ohms) |
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 |
Crossover Frequency | 375Hz |
Components | Custom-wound E-I core transformer, air core coils, polypropylene capacitors. 24-bit DSP based pre-amplifier (used with woofer amplifier). |
Audio Controls | ±10dB under 100 Hz |
Inputs | Custom 5-way binding posts |
Power Draw | Idle: < 1W/channel Max: 200W/channel |
Weight | 42 lbs. (19 kg) |
Dimensions | 59.33" × 10.73" × 18.23" (150.7cm × 27.3cm × 46.3cm) |
CLX art | Summit X | Montis | Ethos | |
Frequency Response | 56–23,000 Hz ±3dB | 24–23,000 Hz ±3dB | 29–23,000 Hz ±3dB | 34–23,000 Hz ±3dB |
Crossover Frequency | 360Hz | 270Hz | 340Hz | 375Hz |
High Frequency Transducer | XStat™ CLS™ electrostatic transducer | XStat™ CLS™ electrostatic transducer | XStat™ CLS™ electrostatic transducer | XStat™ CLS™ electrostatic transducer |
» Panel Dimensions | 57" x 8.6" (145cm x 22cm) |
44" x 11.3" (112cm x 29cm) |
44" x 11.3" (112cm x 29cm) |
44" x 9.2" (112cm x 23cm) |
» Radiating Area | 490 in2 (3,163 cm2) |
497 in2 (3,208 cm2) |
497 in2 (3,208 cm2) |
405 in2 (2,612 cm2) |
Low Frequency Transducer | DualForce™ double diaphragm, triple stator dipole low-frequency electrostatic transducer | Two 10" (25.4cm) cast basket, high excursion, aluminum cone with extended throw drive assembly, non-resonance asymmetrical chamber format | 10" (25.4cm) cast basket, high excursion, aluminum cone with extended throw drive assembly, non-resonance asymmetrical chamber format. | 8" (20.3cm) cast basket, high excursion, aluminum cone with extended throw drive assembly, non-resonance asymmetrical chamber format. 8" (20.3cm) cast basket, high excursion, polypropylene cone passive radiator. |
» Panel Dimensions | 57" x 11.5" (145cm x 29cm) |
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» Radiating Area | 656 in2 (4,229 cm2) |
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» Amplifier | — | Woofer: 2 × 200 watts/channel (4 ohms) | Woofer: 200 watts/channel (4 ohms) | Woofer: 200 watts/channel (4 ohms) |
Audio Controls | — | ±10dB at 25Hz ±10dB at 50Hz |
±10dB under 100 Hz | ±10dB under 100 Hz |
Lighting | Light intensity dimmer controls | Control knob to adjust illuminated blue hood logo, back control panel lighting & ground effects lighting | LED intensity control: on, dim, off | — |
Weight | 110lbs. (50kg) each | 75lbs. (34kg) each | 58lbs. (26.3kg) each | 42lbs. (19kg) each |
Overall Dimensions (HxWxD) |
70.32 x 25.75 x 14.69 (178.6cm x 65.4cm x 37.3cm) | 60.9 x 12.7 x 21.3 (154.8cm x 32.2cm x 54cm) | 59.3 x 12.7 x 18 (150.5cm x 32.2cm x 45.7cm) | 59.33 x 10.73 x 18.23 (150.7cm x 27.3cm x 46.3cm) |