I've had good results using the AU24s between my Electrocompaniet EMC1 and Thor TA-100 tube preamp, with a set of AZ Silver Ref Is completing the signal chain to a Bruce Moore Dual 70 tube amp.
The AU24s do favor the midrange, putting vocals and solo intruments a little more forward in the soundstage than the AZs. The AZs between the pre and amp round out the overall presentation by slightly emphasizing the frequency extremes. The overall result is a very balanced presentation with a nice wide soundstage, great imaging and excellent frequency extension.
By the way, I've tried reversing the order of the interconnects, but felt that the highs became slightly brighter, while the mids were not as warm and lifelike. Interestingly, as others have mentioned, I find that I can easily hear the differences by focusing on the way cymbals are reproduced. Must be that combination of transient attack, upper midrange fundamentals, overtones and decay.
Hope this helps.
The AU24s do favor the midrange, putting vocals and solo intruments a little more forward in the soundstage than the AZs. The AZs between the pre and amp round out the overall presentation by slightly emphasizing the frequency extremes. The overall result is a very balanced presentation with a nice wide soundstage, great imaging and excellent frequency extension.
By the way, I've tried reversing the order of the interconnects, but felt that the highs became slightly brighter, while the mids were not as warm and lifelike. Interestingly, as others have mentioned, I find that I can easily hear the differences by focusing on the way cymbals are reproduced. Must be that combination of transient attack, upper midrange fundamentals, overtones and decay.
Hope this helps.