During the unprecedented impact of COVID-19 we have reduced both staff and hours of operation. Because of this, all calls may not be answered. For all technical support related inquires we encourage you to email service@martinlogan.com and sales@martinlogan.com for sales inquiries. Please expect a slightly longer response time than usual. Thank you for your understanding during this time.



Experience the pinnacle of electrostatic design.

Experience the pinnacle of electrostatic design. Where prismatic beams of musical energy are dispersed throughout your environment with precision, clarity and power. The is the limitless spectrum of the CLS II. Flawless, total dispersion is achieved without delay lines, lenses or protective devices. Purity flows in passages of silence as well as crescendo. The CLS II offers you absolute truth in musical reproduction.

Launched in 1989

Price when discontinued:



Specifications are subject to change without notice

Frequency Response

35–20,000 Hz ±2dB

Recommended Amplifier Power

20—400 watts per channel

Horizontal Dispersion


Vertical Dispersion

48" (121.92cm) line source


86 dB/2.83 volts/meter


4 Ohms, 1 at 20kHz Compatible with 4, 6, or 8 Ohm rated amplifiers.

High Frequency Transducer

48" (121.92cm) CLS™ electrostatic transducer


Dual custom-wound audio transformers; no inductors in the audio signal path; all polypropylene caps

Audio Controls

High Frequency Softening Switch: -2dB from 1,000 to 10,000 Hz


4-way binding posts


67 lbs. (30.4 kg)


57.5" x 28" x 14.5 "
(146cm x 71.1cm x 36.8cm)

Customer Reviews For CLS II

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  • Wednesday, May 29, 2013

Sound an upgrade
I have in the Front CLS2 and aerius in the back the sound is grate real mystic sound, but I looking some up-grade for the CLS 2 could you help me