aquila Posted January 24, 2019 Report Share Posted January 24, 2019 Here you can download an italian review with many measurements about AR9. http://www.mariobon.com/Articoli_storici_diffusori/AR_9.pdf AR_9.pdf Quote Link to comment Share on other sites More sharing options...
aquila Posted February 13, 2019 Author Report Share Posted February 13, 2019 Risposta in frequenza sull'asse = (Anechoic ) On-Axis Frequency Response . Risposta in frequenza in ambiente = Room Response Modulo dell'impedenza = Impedance Argomento dell'impedenza = Phase Dispersione orizzontale = Polar Responses (horizontal dispersion) Risposta ai transienti = Tone Bursts Distorsione di terza armonica = Third harmonic distortion Distorsione di seconda armonica = Second harmonic distortion Livello a 1 metro, - 2,83V - rumore rosa = SPL @ 1 m with Pink Noise (2.83 Volt) As regards impedance and phase the AR9 is generally considered a difficult load: this is not true. According to the engineers' (Renato Giussani and others) measurements and comments, the impedance minimum is about 4 Ohm and particularly from 100 to 1000 Hz impedance is around/above 5 Ohm. Most important the phase only ranges from about +25° to - 25°. For all these reasons they conclude: "the AR9's are definitely an easy load for most amplifiers". Quote Link to comment Share on other sites More sharing options...
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