crosspoint-switch  AD8112  audio signal quality?

Question

Hello everyone, 
 I am starting this discussion, since I haven't found anything in the forum regarding the crosspoint switches. 
 I am looking for one with very good audio performances, therefore I've chosen this one with a very good THD+N specification of 0.002% @20kHz , Rload=600Ohm, V=20V p-p. 
 Now my question would be: how good is it actually? how much it alters an original analog signal? 
 
 Is the presented THD+N value the worst possible and is it applying for the whole human hearing domain 20Hz to 20kHz? 
 
 How does its audio quality change if a load resistance of 10kOhm is applied to it? 
 Is there any alternative of a smaller chip, e.g. 4x4 Array, with the same or better audio performances? 
 Thank you in advance for your answer! 
 Tv

ADIApproved · Accepted Answer

Hi, Teodor. 
 Sorry to keep you waiting. 
 ADI has only two analog crosspoint applicable for audio and these are AD8112 (16X8) and AD8113 (16x16). With this, sorry to inform you that we don't have a 4x4 analog array. 
 Regarding your THD question, both AD8112 and AD8113 have 0.002% (-94dB) THD at 20kHz. As you go lower than 20kHz (refer to figure 20 and 23 of AD8112 and TPC 9 and 12 of AD8113), the distortion also goes low thus these parts would produce more accurate sound and I think with this very low THD, AD8112 or AD8113 would be good parts to be used in your application. 
 Regards, 
 Anna)