Martinlogan Aeon electrostatic speakers. 
Mint, flawless condition only minor scratches.

Specifications

Frequency Response

43–22,000 Hz ±3dB

Recommended Amplifier Power

20—400 watts per channel

Horizontal Dispersion

30°

Vertical Dispersion

37" (94cm) line source

Sensitivity

89 dB/2.83 volts/meter

Impedance

4 Ohms, 1.32 at 20kHz Compatible with 4, 6, or 8 Ohm rated amplifiers.

Crossover Frequency

450 Hz

High Frequency Transducer

37" (94cm) CLS™ electrostatic transducer

Low Frequency Transducer

8" (20.3cm) high excursion, high rigidity cone with extended throw driver assembly, non-resonant asymmetrical chamber format; bass reflex

Components

Custom wound audio transformers, polypropylene capacitors, air core coils

Inputs

Custom 5-way bi-wire binding posts

Weight

55.5 lbs. (25.2 kg)

Dimensions

58" x 10" x 16 "
(148cm x 26cm x 41cm)