The Studio Reference series.
               
JENA Speakers.rg-maple.
   
         Capacitorless Electronic damping to control impedance and electrical ringing of the  tweeter's internal step down transformer
         Ceramic treated with our proprietary anti-ringing coating
         Capacitorless Electronic damping to control excess bass ringing and rising impedance of the voice coils. Frame damping with Vibra-Putty.
       
     Note: Optional on special order: the Dueland/Jantzen CAST cap.
    Solid Stainless Steel handles [ 2 ] on speaker rear to aid in movement and placement.
    Moderate impedance: Nominal higher than 8 ohms in low and midband, nominal 8 ohms over 4kHz
    OTL and transformer tube amp friendly.
    Equally at home with bipolar and FET based power amps.
    Developed with 15 watt and 30 watt PP tube amps, 300W FET amps, 250 watt Bipolar amps, and OTLs in 60 watt an 240 watt capacity.


    Contact Jennifer     e-mail@jenalabs.com  


  .. 
pictured below is the completed speaker design.


..RG-maple.RG-maple 2.
.
test-room     All are solid Maple, these were stained red.
Early test prototypes:
proto-picture    Long ago ideas were prototyped in full scale tests.



.

in Sunburst red At left: In Sunburst red (No Flash) With Flash Sunburst red Same speaker, with Flash

Latest pictures of the final stages will be showing up over the next week but here are some pictures of the first enclosure to reach finishing stages.
picture 1 no flash Natural finish No flash. Picture with flash
Same with flash. .

.
Tweeter panelTweeter Panel at left...  Tweeter panel  
And in place at picture above right.


 November 1st 2007.  We saw the first cutting of the production maple components.
 
speaker build 2speaker build1
    Just look at those stacks of high precision slabs just waiting for their turn in the NC mill. The 1.75 inch slabs are constructed of edge laminated furniture grade clear hard rock maple, fully cured and stabilized, then edge bonded, and final-milled to precise thickness and flatness. In the views above you will see the fabulously accurate NC multi-head mill at work, cutting the first pieces. Jennifer, in the red sweater, protects her hearing as Milling proceeds... you can see her below testing the fit of one of the Thiele and Partner ceramic drivers, albeit one that has not yet undergone the 5 to 6 hour modification process that the finished speaker system will use, and as some of you have heard in the prototype test cabinets.speaker build 4.subpanel tweeter fit test  Ribbon tweeter fit test.

No garage hack, sloppy table saw-hand router buildup for this production speaker project....We are making full use of this multi-million dollar facility to ensure accuracy,  repeatability, finish consistency  and ultimate quality control...
  
speaker build 3speaker build 5.

Glue-up started November 26 - 07

.
panels and tweeter driver fit test.Tweeter subplate test fit.
.more lamination components.Internal Lamination process.
.exposed laminiation view of inside of speaker.view behind a driver port.
.shy-builder.side-oblong.
.chambers.channels.
.back of driver panel.side-front.
.compresion bonding.


speakers buttonJENA Labs    .. Updated May 30 -  2010
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