Hey Sacresta,
I have heard amplifiers from Sugden on many occasions and just reviewed the XA25 for hometheaterreview.com.
The Sugden amplifiers are quite good in their performance and might compare rather favorably to Pass Labs XA.5 series of amplifiers. However, the XA25, which does not even use the same circuit design as the XA.8 series is on a much higher level of performance then the Sugden amplifier. For my tastes the XA25 replaced my XA-60.8 mono blocks in my reference system. I don't think the Sugden even is on the level of performance of the XA.8 series, therefore it's not even close in my opinion. For details on the XA25's performance take a look at my review.
I have heard amplifiers from Sugden on many occasions and just reviewed the XA25 for hometheaterreview.com.
The Sugden amplifiers are quite good in their performance and might compare rather favorably to Pass Labs XA.5 series of amplifiers. However, the XA25, which does not even use the same circuit design as the XA.8 series is on a much higher level of performance then the Sugden amplifier. For my tastes the XA25 replaced my XA-60.8 mono blocks in my reference system. I don't think the Sugden even is on the level of performance of the XA.8 series, therefore it's not even close in my opinion. For details on the XA25's performance take a look at my review.