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JANSZEN zA2.1 SPECIFICATIONS
- Frequency response -- 40 Hz - 20 kHz +/- 3 dB on axis
- Sensitivity -- 87 dB/1W/1m
- Power handling -- 50W - 100W RMS/ch/8 Ohm recommended; up to 200W tolerated (400W/4 Ohm)
- Impedance -- 4 Ohm nominal, 3 Ohm minimum
- Peak SPL -- 108 dB (pair playing music at 4 m [13'] in mid-sized room - 4.5 m x 7.3 m x 3.0 m (15' x 24' x 10')
- Fully enclosed, not dipoles, makes placement easy
- Listening area
- Full spectrum 2 m wide @ 4 m (6.5' wide @ 13')
- Relatively narrow dispersion conserves recorded ambience, reduces interaction with the room, and sharpens the soundstage, yet wide enough to avoid a headphone effect
- 2.5 way, WTW (Woofer - Tweeter - Woofer) configuration
- Woofers above and below ESL array; ESL panels employ half-split-response (1.5 way ESL)
- Woofer radiation pattern mates better to ESL array
- Reduces room mode coupling and eases placement
- Excellent phase alignment for soundstage focus
- Vertical image stability
- Minimal floor bounce effect
- Crossover -- 2nd order @ 500 Hz -- far below the disturbance-sensitive hearing region of 1 kHz - 3 kHz
- Secondary partial crossover -- 1st order -- limits upper treble from half ESL panel width -- controls dispersion and response
- Woofer level -- three settings - autoformer maintains damping factor and cone control -- no resistive divider
- Intimate Mode -- on-axis seating
- Intimate A: +3 dB -- compensates for when speakers are placed far from back wall (or boosts bass a bit near back wall)
- Intimate B: 0 dB -- for speaker placement near back wall or more relaxed bass response
- Audience Mode: -3 dB -- for off-axis listening; matches woofer level to room diffusion of highs
- Tweeter/midrange level setting from normal to -12 dB
- ESL panels
- Two identical panels in each speaker, mounted in a barometrically isolated sub-enclosure
- Vertical array; 18 cm wide x 40 cm high (7"W x 16"H)
- Protected by an acoustically transparent air barrier behind grillcloth
- 520 square cm [80 square inch] forward radiating area per array
- Tough, stable, injection molded, ABS stator frames
- 66-element, parallel wire, stator electrodes (total of 132 electrode elements per panel)
- Unique panel construction and materials are immune to the effects of wide and rapid temperature and humidity swings
- Optimal sonic membrane material
- Thickness less than 1/15th of a sheet of 20 lb paper -- lighter than the air it is driving
- Acts as a virtual air driver with force applied evenly over its whole surface -- no breakup
- Properly damped, unlike see-through electrostatics
- Introduces absolutely no midrange or treble coloration, and distortion is far below audibility
- Will not lose its tension or degrade over time
- 1.5 way tweeter/mid design controls horizontal dispersion and eliminates electrical EQ network