http://www.audiojunkies.com/blog/1016/wt3-woofer-tester-review-dayton-audio
find ich grad sehr interessant das teil, da ich einiges an lautsprechern ohne jegliche TSP hierhab. ich frage mich, ob es jedoch nur für tieftöner ist, da es ein 'woofer tester' is
find ich auch deutlich praktischer, als die selbstgebauten schaltungen mit dem widerstand an ner normalen soundkarte und der knete am tieftöner
was haltet ihr von sowas und is das nur für tieftöner?
Fuer die Vas-Messung musst du immer noch die Resonanzfrequenz verschieben (also Einbau in Gehaeuse oder zusaetzliche Masse) oder eine kalibrierte SPL-Messung haben.
http://www.audiojunkies.com/blog/1016/wt3-woofer-tester-review-dayton-audio schrieb:[...]The measuring of a driver's Vas proves to be a bit problematic as well. In cases where I experienced a larger difference between one measured set and another, I could usually track this down to a problem with the Vas measurement that was made. The cause? Well, the three preferred methods (Test Box, Added Mass, and Specified SPL) are what pose a problem. The Test Box Method requires a near exact measurement of volume in an enclosure with no leaks. The Added Mass Method requires a mass be added to the driver that will not shift when excited, should not be susceptible to a magnetic field, and must fall within a certain window of mass depending on the originally verified mass. The Specified SPL method requires an accurate measurement of the SPL. To make matters worse, the user guide does not specify which of the methods is preferable. And with poor Vas measurements comes problems with the other measurements as well (like efficiency, for example).[...]