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Details about  Orban 222A Stereo Spatial Enhancer Sound Module 1980's Vintage Rack Mount Gear

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Orban 222A Stereo Spatial Enhancer Sound Module 1980's Vintage Rack Mount Gear
Orban-222A-Stereo-Spatial-Enhancer-Sound-Module-1980s-Vintage-Rack-Mount-Gear
Item Ended
Item condition:
Used
Ended:
Nov 16, 2013 06:57:43 PST
Price:
US $475.00
Shipping:
$28.60 Expedited Shipping | See details
Item location:
Crockett, Texas, United States

Description

eBay item number:
181166184286
Seller assumes all responsibility for this listing.
Last updated on  Nov 15, 2013 13:05:19 PST  View all revisions

Item specifics

Condition:
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully ... Read moreabout the condition
Type:

Exciter/Enhancer

Model:

222A

Brand:

Orban

Leediker's Broadcast Services-E.TX

100%
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For your consideration we have this very rare Orban unit, the 222A.  


We tested out the unit while it was installed in a rack-mount setup, and it performed its functions fully and without issues or anomalies.  This Orban module needs nothing and will work perfectly for you, right out of the box.  There are some external wires attached, which may have been damaged slightly when removing the unit; these cables are specific to the previous installation and were not necessarily designed/intended to be reused.  They can easily be removed/replaced as desired--these extra cables are included, as shown.  This 222A is a fine module; quite a rare find and it is of course much more difficult to track down such a well-kept example.


So, is this what you've been searching for?



We have a large inventory of Broadcasting equipment to liquidate due to the passing of the Owner/Engineer. The reason for "No Returns" is due to the liquidation process of the Estate. Although, if there is a problem with anything we will do our best to replace or rectify the situation. (We have sold many capacitors, tubes, test equipment & other items without a single complaint) Thank you for your interest and have a great day!



Additional Info:



The 222A Stereo Spatial Enhancer was designed by Bob Orban and released in the late 1980's. In general, the broadcast enhancers manipulate the stereo difference signal (L-R) only, so they don't have the mono compatibility problems that the general-purpose boxes have. 


The Orban 222A works by detecting attack transients in the L+R domain and momentarily increase or left as is the L-R content when this occurs, so stereo information stay’s always “constant”, the level of this constant varies from the user giving threshold on front panel knob. 


This exploits the fact that the ear tends to localize on transients while minimizing the average amount of L - R gain increase. L-R gain increase, while not directly impacting the mono signal, can reduce L+R loudness because it increases the peak modulation of the left and right channels in FM Stereo forcing the average modulation to be reduced to ensure that the peak modulation remains within the limits set by the government authorities. 


If the intelligent inputs monitor circuit see that comes a track with already wide enough stereo image then automatically minimize or defeat the enhancement L-R process, the same will happen if the monitor see only one channel or mono information on inputs, both states are indicated by minimum or no lit of front panel LED’s meters, by that way 222A did not exaggerate stereo image neither produce any kind of phase problems at high freq. on mono reception.


Check out my other items!

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