InnerSound Isis Electrostatic Floorstanding Speakers

Here we have a pair of the well regarded Isis Electrostatic Loudspeakers from American company InnerSound. They are in good fully working condition with a few small cosmetic blemishes – please refer to photographs, and will be professionally packaged along with our regular three month warranty.
InnerSound Said….
InnerSound speakers are deliberately made to be directional so that the sound quality is the most realistic possible. It is three-dimensional and has a ‘holographic” quality.
Wide-dispersion speakers send most of their sound away from you into the room where it reflects off room surfaces before reaching you. You are actually listening to the room more than the speakers. Because these reflections travel varying distances before they reach you, they are delayed by varying amounts. When the speaker produces a transient sound (and music is mostly transient in nature), you hear the sound from many directions and at slightly different times. This “smears” the transient and produces “muddy” sound and a poor image.
InnerSound speakers direct the sound directly to you instead of throughout the room. You hear the speaker instead of the room. This is why InnerSound speakers sound more clear than even very good conventional speakers.
Sound clarity and image quality is a function of timing and distance. So to get the best performance, you will need to get your speakers precisely positioned. This requires that you have both speakers an equal distance from you and that they are pointed directly at you. To avoid reflections from the wall behind you, it is best that your listening chair be well-away from the wall or that the wall has an absorbent surface in the area directly behind your head. This may seem like extra effort that’s unique to InnerSound speakers, but this is not true. All speakers perform best when they are accurately positioned.
Specifications:
Power Handling: 250 watts
Impedance: 4 Ω nominal, 2 Ω minimum @ 20 kHz
Bass Driver: 8”
Woofer Impedance: 4 Ω
Bass Design: Transmission line
Sensitivity: 90 dB/2.83 volts/metre
Frequency Response: 34 Hz to 27 kHz ±2 dB
Dimensions: 1580 (H) x 290 (W) x 360 (D)
Weight: 25.0 kg