Janszen zA2.1 Owner's Manual - page 12
Q U I C K S T A R T
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Quick Start
t mid and high frequencies, the zA2.1’s directivity keeps the stereo image from
being affected by room placement in all but the most reflective rooms. As
with any non-dipole speakers, though, the bass is practically omnidirectional,
so nearby walls will reinforce it.
A good starting setup:
• The speaker with the even serial number should be placed to the right, and the
odd to the left. The speakers are acoustical mirror images of each other, and
optimal sound occurs inboard when so arranged.
• Arranged into an equilateral triangle setup, that is, an equal distance between
the speakers and each other, and between each speaker and you. Of course,
some will prefer or be practically limited to a smaller angle between the
speakers, which is perfectly fine.
• Aimed directly at your listening position or slightly toed out from there so that
their axes cross a foot or two behind you.
• Positioned between 15 inches and 30 inches from the front wall and at least 2
feet from the side walls.
• Tilted back the right amount for facing upward directly at your shoulders. They
ship set up for a listening distance of 2.5 to 4 meters [8 to 13 feet] at a 1 meter
[39 inch] height.
• Tweeter control set at maximum and the woofer at +3 dB.
• Driven with at least a 40W/ch/8 Ohm amplifier, preferably solid state; 90W to
120W is a good range for best transient reproduction and full SPL; 250W max.
If driving with a tube amplifier, use the 4 Ohm output taps for best woofing
(highest damping factor), or the 8 Ohm tap for highest SPL.
An 18W parallel 300B SET will somewhat surprisingly produce adequate
volume levels for small ensemble music in a large room, so if what you own
now is a tube amplifier with relatively low power, it’s worth waiting until you
hear it with these speakers before shopping for a new amplifier.
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