When it comes to day to day usability, JansZen loudspeaker systems are every bit as practical as any standard loudspeaker. Treble dispersion is very wide and the sound field drops off slowly, so the listening area is large and suitable for multiple listeners; there's no exclusive sweet-spot, other than for "phase-perfect" listening, of course.

Also, compared to earlier designs that use dipole radiation, the lack of "beaming" eases the potential impact of the room configuration on the aggregate response, so they will sound very similar in different rooms and locations within a room. At 19" wide x 16" deep x 72" high, the JansZen One loud- speakers are a reasonable size, which contributes to the realism to the sound.

• Long-term reliability equals or exceeds the best electromagnetically actuated loudspeakers. This is because: (a) Membrane motion is small, (b) All high voltage components are protected from electrostatic accumulation of airborne particulates, and (c) All materials were carefully chosen for durability under the particular operating conditions found in ES loudspeakers.

• The loudspeakers are protected by an unconditional two year warranty against failure of any sort, with five years on the drivers.

• As a result of their unique design, there is no membrane-destroying arcing. If a listener overdrives the system, clipping distortion will be heard, but no damage will be done.
• Regarding safety, the high voltage parts are inaccessible, and no ozone is generated for unwelcome introduction into your living space.
• The loudspeakers are physically rugged, and can be shipped by ordinary freight and handled normally when moving.
• Accessories are not needed, because JansZen loudspeakers start out with a virtually flat frequency response and high phase coherence. This lets you tailor the sound using just your preamp and signal processing equipment, although controls are provided for treble, bass and sub-sonic de-emphasis. If you're used to a collection of special capacitors, crossovers, cables, phase-restorative interface boxes, and so on, well, we hope your grieving period will be brief.