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operationtests of the system and measurements  
   
   
 
The measurements where performed by using the UPL from Rhode & Schwarz.

The measurement Microphone that has been used for measurements was manufactured by Brüel & Kjærs.
The rest of the measurementpapers will be scanned within this week and put on the page.

Due to the fact that i must first finish a letter in a private trial with a timelimit from court, i can continue further scanning earliest after the finish of the letter with timelimit.

   
 
 
Measurementresults  - left  - speakersystem Measurementresults  - right -  speakersystem

Frequency sweep Frequency sweep
enlarged print enlarged print


At the points where crossovers are on duty very minimal spikes 
been executed up to 20 kHz and the upper border of the speaker-
to 50 kHz the upper border of the speakersystems became
somewhere around 48 kHz to 50 kHz.                                        

 with less then 0,1 % are visible. The first measurements have
system was not visible. When the measurements where expanded
 visible. So the upmost limit of the speakersystem seems to be
Polarmeasurement of Soundpressure Polarmeasurement of Soundpressure
Pulseresponse at 15 Hz, 300 Hz, 800 Hz, 2 kHz, 5 kHz, 9 kHz and 15 kHz  Pulseresponse at 15 Hz, 300 Hz, 800 Hz, 2 kHz, 5 kHz, 9 kHz and 15 kHz
 
 

further measurementprints will be scaned and inserted

 
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© Harro Walsh