Brand: Martin Logan
RRP: $4999
Sale price: $3499

Martin Logan - Purity

Purity marks an exciting new direction for electrostatic loudspeaker design. Internally powered with a high-resolution 200-watt switching amplifier, Purity allows an unprecedented level of system connection flexibility. Equipped with a standard line-level input, Purity is able to connect directly to devices such as digital music players, flat screen televisions or even computers. Additional speaker level inputs also allow Purity to function in a more traditional receiver or pre-amp equipped 2-channel or home theater system.

Purity incorporates proprietary AirFrame™ technology and MartinLogan's advanced MicroPerf Generation 2 diaphragm electrostatic transducer to cover the audible acoustic range with unprecedented high-frequency accuracy and low-level sonic detail. ClearSpar™ spacers suspend the Generation 2 diaphragm within the electrostatic transducer, enhancing Purity's transparent look and increasing both efficiency and dynamics. Perfectly integrated MartinLogan engineered dual high-resolution 6.5-inch aluminum cone woofers supply an authoritative bass performance that will give most stand-alone subwoofers a run for their money.
State-of-the-art audio transformer and custom crossover engineering ensure a transparent link between the electrostatic panel and woofer. Purity's crossover employs a proprietary Vojtko™ topology for vanishingly low distortion and seamless driver integration. This precision-tuned network preserves miniscule sonic nuances while handling the full dynamics of any source with unparalleled purity, precision, clarity, and openness.

Frequency Response

41–23,000 Hz ±3dB

Horizontal Dispersion


Vertical Dispersion

28" (71cm) line source

High Frequency Transducer

XStat™ CLS™ electrostatic transducer

» Panel Dimensions 28" × 8.6" (71.1 × 21.8cm)

» Radiating Area 241 in2 (1,550 cm2)

Low Frequency Transducer

Two 6.5" (16.5cm) high excursion, high rigidity aluminum cone with extended throw drive assembly, non-resonance asymmetrical chamber format; bass reflex


200 watts


Binding Posts: 93 dB/2.83 volts/meter Line Level: 95 dB/0.1 volts/meter


Binding posts: 2,000 Ohms Line level RCA: 14,000 Ohms. Compatible with 4, 6, or 8 Ohm rated amplifiers.

Recommended Amplifier Power

20‒400 watts per channel

Crossover Frequency



Custom-wound audio transformer, air core coils, high-efficiency high-resolution amplifier


Line level, Custom 5-way binding posts


51 lbs. (23.2 kg)


52.3" × 9.7" × 14.7" (132.9cm × 24.5cm × 37.3cm)