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Janszen zA2.1A Owner's Manual

Electrostatic hybrid loudspeaker active version
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Model zA2.1A Electrostatic Hybrid Loudspeaker
Active Version
O
'
M
WNER
S
ANUAL
7/7/2015

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Summary of Contents for Janszen zA2.1A

  • Page 1 Model zA2.1A Electrostatic Hybrid Loudspeaker Active Version ’ WNER ANUAL 7/7/2015...
  • Page 2 Owner’s Manual  2015 Janszen Loudspeaker, Ltd. 480 Trade Road Columbus, Ohio 43204 USA Phone +1 614-448-1811 email support@janszenloudspeaker.com This Owner’s Guide is published only in PDF form in order to save trees and not burden people with even more paper than they are already barraged with.

  • Page 3: Table Of Contents

    T able of Contents Safety Information ..............1 Welcome ..................4 Unpacking ................... 5 Carton contents ................5 Unpacking ..................5 Feet ....................6 Grills ....................6 Moving ..................7 Large movements ................7 Small movements................7 Cleaning ..................8 Wooden baffles ................

  • Page 4: Safety Information

    INVALIDATE REGULATORY COMPLIANCE AND THUS RENDER THE SPEAKERS UNSUITABLE FOR HOME USE. THIS INCLUDES KEEPING THE GRILLS INTACT. WARNING: JANSZEN SHALL NOT BE RESPONSIBLE FOR ANY PHYSICAL DAMAGES OR INJURY THAT OCCURS AS A RESULT OF MISUSE, DISASSEMBLY, OR UNAUTHORIZED CHANGES OR MODIFICATIONS MADE TO THESE SPEAKERS.
  • Page 5 S A F E T Y I N F O R M A T I O N 3. Heed the warnings – All warnings about these speakers should be followed. 4. Follow the instructions – All operating and use instructions about these speakers should be followed.
  • Page 6 You can measure loudness with a simple sound level meter. If you wish to check your exposure, JansZen can supply a good quality sound level meter such as we use ourselves at modest cost. Radio Shack also offers one. There...

  • Page 7: Welcome

    W E L C O M E Welcome ou have chosen JansZen loudspeakers! The zA2.1 will bring you the utmost in music listening enjoyment through its exceptional purity and naturalness in sound reproduction. While these speakers include esoteric technology, you can rest assured that they are designed and built with the best of advanced materials and techniques, and are ready to bring you consistent, unwavering performance for decades to come.

  • Page 8: Unpacking

    U N P A C K I N G Unpacking o not allow the delivery person to leave until you are satisfied that there has been no shipping damage. If there is damage, please refuse the shipment, and it will automatically come back to us for repair/replacement.

  • Page 9: Feet

    U N P A C K I N G 9) Gently tilt the speaker up until it is vertical, then further until the feet to the side with no insert touch the floor. 10) While continuing to support the speaker, remove the remaining blue foam insert, and let the speaker down onto all its feet.

  • Page 10: Moving

    M O V I N G Moving he speakers weigh about 28 kg [62 pounds], so they can be hard to move for someone working alone. If you are unpacking these alone, here are a few suggestions. Large movements The easiest way to pick one up is: 1) Ensure that your clothing presents no exposed hardware, such as a belt buckle, snaps, rivets, buttons, etc., that could come into contact with the speaker and scratch the paint or wood.

  • Page 11: Cleaning

    C L E A N I N G Cleaning Wooden baffles The final wood finish coat is wax, which will be removed by most cleaners. Wipe only with a soft, damp cloth. Painted and metal surfaces These surfaces can withstand strong cleaners as well as alcohol, but do not spray anything directly onto the speakers.

  • Page 12: Quick Start

    Q U I C K S T A R T Quick Start elative to the passive version of the zA2.1, the interesting thing about this model is obviously its built in biamplification and signal processing. The amplifier unit is shown below mounted into the back of the speaker enclosure. Connection.
  • Page 13 S E T U P D E T A I L S just as well with a pair of $20 microphone cables from your local musical instrument or pro-audio store (or Amazon) as with something fancy. If your source has only RCA outputs, then you can get good results using your existing RCA cables with an adapter.
  • Page 14 S E T U P D E T A I L S If you have a room situation that tends to skew the image to one side, and no balance control, you can use the gain controls for balance adjustment. Presets.

  • Page 15: A Good Starting Setup

    S E T U P D E T A I L S Placement At 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.

  • Page 16: Tips

    S E T U P D E T A I L S • Aim slightly less toed in than directly at your listening position, so that their axes cross a foot or two behind you. • Position close to the front wall, with the rearmost corner between 24 and 36 inches [60 to 80 cm] out.
  • Page 17 S E T U P D E T A I L S Also, changing the back-tilt away from a straight-facing aim will degrade time- alignment. • The back tilt adjustment can be accomplished by shining a flashlight from ear height (chest height on older models) and watching for a reflection from the wood astride the centers of the speakers.
  • Page 18 S E T U P D E T A I L S Fig 1. Our apologies for this appallingly bad illustration.

  • Page 19: Connecting And Powering

    C O N N E C T I N G A N D P O W E R I N G Connecting and Powering Binding Posts The standard binding posts accept spades or bare wire, but not banana plugs, although they can be clamped into the posts in a pinch, so to speak. We have nothing against banana plugs, but came to appreciate the design of the Cardas Patented post assembly, with its handy, single knob clamping mechanism, solid copper posts, and rhodium plating.

  • Page 20: Powering

    S E T U P D E T A I L S The bias supply will work correctly with any mains voltage, and if the speakers are moved internationally, suitable power cords for any wall socket arrangement can be obtained worldwide and used without concern for converting/adapting the voltage.
  • Page 21 A I R L A Y E R airLayer Option The zA2.1 speakers are very directive in the vertical, and rather directive in the horizontal. This serves to minimize the involvement of the room, thereby making setup easier, and maximally conserving the recorded ambiance and the precision of the image. With recordings that do not have realistically recorded ambiance with well conserved phase information, a potential drawback is the perception of a closed in soundstage, extending only from one speaker to the other.
  • Page 22 S E T U P D E T A I L S for overall effect. You can turn them up or down and the balance will remain okay as long as you keep the difference in dB between the two settings the same. Controls Unfortunately, our supplier for the usual control fascia (marked in dB) sometimes runs out of stock.

  • Page 23: Setup Details

    S E T U P D E T A I L S Setup Details Backward Tilt The zA2.1 speakers are very directive in the vertical. There is thus about a 22 cm [9”] range of ear height that will experience full spectrum sound. In addition, the backward tilt serves to present the sound from all the drivers in phase (“time aligned”) at your ears, which improves the smoothness of the frequency response by minimizing the effects of interference between the drivers, and creates a high degree of phase coherence.

  • Page 24: Room Compensation

    S E T U P D E T A I L S made of soft, sound absorbent material. This has a disastrous effect on realism as well as the stereo image. Lastly, if the back wall less than a few meters [ten feet] behind the listening position, it is helpful to add absorbent material there, such as heavy curtains or a decorative carpet.

  • Page 25: Room Boom And Suck Out

    S E T U P D E T A I L S Room Boom and Suck Out Room resonant modes can cause certain bass notes to be greatly exaggerated and others to be nearly missing. Properly tuned and positioned bass traps are the ultimate solution, but no one will blame you if you don’t want to bother.

  • Page 26: Fuse Replacement

    S E T U P D E T A I L S Fuse replacement...

  • Page 27: Features And Specifications

    S E T U P D E T A I L S Features and Specifications Frequency response • Standard: 30 Hz - 20 kHz +/- 3 dB on axis (in room) HP: 20 Hz - 20 kHz +/- 3 dB on axis (in room) Peak SPL -- 108 dB (pair playing music at 4 m [13'] in mid-sized room -- 4.5 m x •...
  • Page 28 S E T U P D E T A I L S 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...
  • Page 29 S E T U P D E T A I L S Adjustable sensitivity/gain Amplifiers • Input impedance: 10 k balanced to ground Maximum gain: 32 dB (x40 voltage gain) S/N ratio: >113 dBA (20 Hz – 20 kHz, A weighted) Damping factor: >1000 (20 –...

  • Page 30: Warranty

    Shipping damage will not result in cash costs to the buyer. 1. Obvious damage. i. If such damage is discovered, delivery should be refused, so that JansZen may most credibly negotiate with the shipping company. ii. JansZen shall be notified of the event ASAP.
  • Page 31 IV. Satisfaction warranty. If the buyer wishes to return the speakers within 30 days of acceptance for any reason, they may be shipped to JansZen at the buyer's cost in its original condition and packing materials. If there is no damage traceable to the owner, the refund will be in full.

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