The MartinLogan Renaissance ESL 15A is a reference-level hybrid electrostatic loudspeaker designed to deliver the ultimate expression of MartinLogan's electrostatic technology. As one of the most advanced models in the company's lineup, it combines a massive 46-inch × 15-inch XStat™ CLS™ electrostatic panel with dual powered 12-inch aluminum woofers, creating an extraordinary balance of transparency, scale, and dynamic authority. With bass extension reaching down to 22 Hz and integrated amplification for the low-frequency section, the Renaissance ESL 15A delivers a full-range listening experience without compromise.
At the heart of the Renaissance ESL 15A is MartinLogan's advanced XStat™ Curvilinear Line Source electrostatic transducer featuring MicroPerf™ stator technology. The ultra-light diaphragm provides exceptional speed, precision, and extremely low distortion, reproducing vocals and instruments with breathtaking realism. The large 46-inch line-source panel creates a naturally expansive soundstage with precise imaging and consistent vertical dispersion, allowing listeners to experience recordings with remarkable depth and spatial accuracy.
The PoweredForce Forward™ bass system combines two high-excursion 12-inch aluminum woofers with dedicated 500-watt Class-D amplifiers, providing deep, controlled bass while minimizing interaction with room boundaries. The integrated 24-bit Vojtko™ DSP Engine and Anthem Room Correction (ARC™) compatibility allow the low-frequency performance to be precisely optimized for the listening environment, ensuring powerful yet accurate bass reproduction that seamlessly blends with the electrostatic panel.
Designed for the world's finest two-channel audio systems and reference home theaters, the Renaissance ESL 15A represents the pinnacle of MartinLogan's hybrid electrostatic engineering. Its combination of massive electrostatic radiating area, advanced bass technology, premium components, and elegant handcrafted construction delivers a truly immersive listening experience with unmatched transparency, realism, and dynamic impact.
- Component type: Hybrid electrostatic powered floorstanding speaker
- High-frequency / midrange driver: 46-inch × 15-inch XStat™ CLS™ Curvilinear Electrostatic Transducer with MicroPerf™ technology
- Electrostatic radiating area: 690 sq in (4,446 cm²)
- Low-frequency drivers: Dual 12-inch PoweredForce Forward™ high-excursion rigid aluminum cone woofers
- Built-in amplifier: Dual 500 W Class-D amplifiers (1,000 W peak each) dedicated to the woofer section
- Frequency response: 22 Hz – 21 kHz (±3 dB)
- Sensitivity: 92 dB (2.83V/1m)
- Impedance: 4 ohms (0.5 ohms minimum at 20 kHz)
- Recommended amplifier power: 20–700 W per channel
- Crossover frequency: 300 Hz
- Horizontal dispersion: 30°
- Vertical dispersion: 46-inch line source
- Room correction: Anthem Room Correction (ARC™) Ready
- Audio controls: Bass ±10 dB below 75 Hz, Mid-Bass -2 dB / 0 dB / +2 dB, LED lighting On / Dim / Off, ARC Room EQ On / Off
- Inputs: WBT-0703Cu nextgen™ 5-way binding posts, AC power, RJ45 (ARC), Mini USB (ARC)
- Enclosure: PoweredForce Forward™ bass system with non-resonant asymmetrical chamber
- Components: Custom-wound audio transformer, air-core coils, polypropylene capacitors, 24-bit DSP-based preamplifier
- Dimensions (H × W × D): 69.8 × 15.75 × 28.9 in (177.3 × 40 × 63.3 cm)
- Weight: 140 lb (63.5 kg) each
- Finishes: Gloss Black, Dark Cherrywood
- Design features: XStat™ CLS™ electrostatic panel, MicroPerf™ stator technology, PoweredForce Forward™ bass alignment, 24-bit Vojtko™ DSP Engine, AirFrame Blade™ construction, premium WBT binding posts