£29,995

Renaissance ESL 15A

Featuring a 15-inch (CLS™) XStat™ electrostatic transducer, dual 12-inch PoweredForce Forward™ woofers powered by dual 500-watt Class-D amplifiers, and controlled by a 24-Bit Vojtko™ DSP Engine and ARC™ (Anthem Room Correction).

RENAISSANCE ESL 15A

What makes a masterpiece? Is the “Mona Lisa” just a picture of a woman smiling, or is there more to it?

We consider something a masterpiece when uncommon skill and artistry shapes familiar elements in an unexpected way, revealing an essential truth.

For MartinLogan, the essential truth revealed by our skill and artistry is audio realism. Fittingly, our next generation of electrostatic loudspeakers debuts with the new Renaissance ESL 15A. Three decades of audio design and engineering innovation, distilled into a startling fresh loudspeaker ideal.

A Masterpiece of Design & Engineering

Befitting a loudspeaker of this name, MartinLogan has combined decades of innovations, and more, to reinterpret the uniquely detailed electrostatic loudspeaker. This is a flagship audio achievement for the 21st Century.

The pièce de résistance is the integration of MartinLogan’s award-winning 15-inch wide Curvilinear Line Source (CLS™) XStat™ electrostatic (ESL) transducer with its robust woofer section, the revolutionary melding of design and engineering.

Achieving the Laboratory Standard in Your Own Room

In the lab, MartinLogan engineers strive for transparency. Outside the lab, there’s one wildcard our engineers can never account for: Your listening room. The unique size and shape of your listening space (and the size and shape of its contents) can make bass waves do unpredictable things, greatly affecting a speaker’s overall performance.

For the first time in an electrostatic speaker we are introducing the integration of exclusive Anthem Room Correction (ARC) technology. By engaging ARC to control the low-frequency curve in relation to the output of the ESL panel (as seen in this graph), you will experience performance on par with MartinLogan’s audio test lab.

ARC measures low-frequency sound output in your room and compares it to optimal response curves that account for spatial anomalies. The advanced algorithms of ARC then effectively remove the anomalies, leaving only the ideal standard: realistically blended, natural-sounding bass performance in your listening space.

By minimizing room interactions with PoweredForce Forward bass technology and the advanced room correction capabilities of ARC, along with its unique synthesis of the ESL and bass sections, the Renaissance ESL 15A produces perfectly-etched imaging and focus; optimum natural reproduction of sound at lifelike listening levels; and agile, full-range operation in open air.

Clearly, it is this level of ultimate performance that separates the merely excellent from a true masterpiece.

Specifications

Frequency Response22–21,000 Hz ±3dB
Recommended Amplifier Power20—700 watts per channel
Horizontal Dispersion30°
Vertical Dispersion46" (116.9cm) line source
Sensitivity92 dB/2.83 volts/meter
Impedance4 Ohms, 0.5 at 20kHz Compatible with 4, 6, or 8 Ohm rated amplifiers.
Crossover Frequency300Hz
High Frequency TransducerXStat™ CLS™ electrostatic transducer. » Panel Dimensions : 46" x 15" (117 x 38cm). » Radiating Area : 690 in² (4,446 cm² )
Low Frequency TransducerTwo 12” (30.5 cm) PoweredForce Forward™ woofers with cast basket, high excursion, rigid aluminium cone and extended throw drive assembly, non-resonance asymmetrical chamber format.
AmplifierWoofer: 2 x 500 watts/channel (4 ohms), 2 x 1,000 watts peak
Room Correction (Bass Section)Anthem Room Correction (ARC™) ready (Sold Separately)
ComponentsCustom-wound audio transformer, air core coils, polypropylene capacitors. 24-bit DSP based preamplifier (used with woofer amplifier).
Audio ControlsBass: ±10 dB under 75 Hz Mid-Bass: –2 dB, 0 db, +2 db Light: On, Dim, Off ARC™ Room EQ: On, Off
Signal InputsWBT-0703Cu nextgen™ 5-way binding posts feature a filigree signal conductor made from gold plated, nickel free, non- ferromagnetic, pure copper for high conductivity and fully insulated. Free from eddy current effects.
InputsAC Power, RJ45 (for ARC), mini USB (for ARC)
Power DrawIdle: < 0.5W/channel Max: 900W/channel
LightingLED intensity control: on, dim, off
Weight140 lbs. (63.5 kg)
Dimensions69.8" x 15.75" x 28.9 " (177.3cm x 40cm x 63.3cm)