Martin Logan Renaissance ESL 15A Speakers
Martin Logan Renaissance ESL 15A Speakers
Martin Logan Renaissance ESL 15A Speakers
Martin Logan Renaissance ESL 15A Speakers
Martin Logan Renaissance ESL 15A Speakers
Martin Logan Renaissance ESL 15A Speakers
Martin Logan

Renaissance ESL 15A Electrostatic Speakers

The Renaissance ESL 15A is the top of the traditional range of the ‘Masterpiece’ line. Only the Neolith exceeds it in terms of performance from a ML speaker. It features a 15-inch wide Curvilinear Line Source (CLS™) XStat™ electrostatic (ESL) transducer and  robust woofer section.

3 Years


Befitting a loudspeaker of this name, Martin Logan 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 Martin Logan’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.

Look at the familiar elements of the classic Martin Logan electrostatic loudspeaker: Advanced MicroPerf stator technology, which allows for almost twice the exposed electrostatic diaphragm surface as a traditional electrostatic panel of the same size. The panel is reinforced with rigid ClearSpar™ spacers, keeping an exact level of tension on the vacuum-bonded diaphragm without obscuring the beautiful see-through design. Add the slender, pointed-arrow design of the new AirFrame™ Blade construction; a powerfully evocative composition creating a harmonious connection between the panel and its woofer cabinet.

Now notice some radical refinements: Inspired by their own breakthrough design, Martin Logan have reinvented the Renaissance ESL 15A woofer section, powered by new dual 500-watt Class-D amplifiers, and controlled by a 24-Bit Vojtko™ DSP Engine and ARC™ (Anthem Room Correction).

Using two 12-inch laser-engineered low-distortion aluminium cone woofers in independently enclosed compact chambers, exclusive PoweredForce Forward™ bass alignment technology controls the interaction between the rear-firing woofer and the wall behind that woofer. With smart phase-shifting logic, they minimise the effect that wall has on bass information that might bounce back into the listening room. This uniform frequency response results in realistic bass effects you can feel. It’s one more way Martin Logan innovation improves your listening experience in any room.

Frequency Response
22–21,000 Hz ±3dB

Recommended Amplifier Power
20—700 watts per channel

Horizontal Dispersion

Vertical Dispersion
46″ (116.9cm) line source

92 dB/2.83 volts/meter

4 Ohms, 0.5 at 20kHz Compatible with 4, 6, or 8 Ohm rated amplifiers.

Crossover Frequency

High Frequency Transducer
XStat™ CLS™ electrostatic transducer. » Panel Dimensions : 46″ x 15″ (117 x 38cm). » Radiating Area : 690 in² (4,446 cm² )

Low Frequency Transducer
Two 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.

Woofer: 2 x 500 watts/channel (4 ohms), 2 x 1,000 watts peak

Room Correction (Bass Section)
Anthem Room Correction (ARC™) ready (Sold Separately)

Custom-wound audio transformer, air core coils, polypropylene capacitors. 24-bit DSP based preamplifier (used with woofer amplifier).

Audio Controls
Bass: ±10 dB under 75 Hz Mid-Bass: –2 dB, 0 db, +2 db Light: On, Dim, Off ARC™ Room EQ: On, Off

Signal Inputs
WBT-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.

AC Power, RJ45 (for ARC), mini USB (for ARC)

Power Draw
Idle: < 0.5W/channel Max: 900W/channel

LED intensity control: on, dim, off

140 lbs. (63.5 kg)

69.8″ x 15.75″ x 28.9 ” (177.3cm x 40cm x 63.3cm)