With the major proviso that I am pretty new to hi-fi, this is precisely what I have just been doing for the last few weeks. I heard an original model Xerxes (a mid to late-1990s model) in very good condition set up by a very reputable dealer through an excellent system. I thought it was terrific and particularly exciting in the mid-range. Very realistic and neutral sounding. But in the end I felt that the female vocals lacked the humanity and airiness that other turntables presented. This left me with a nagging doubt about the turntable and I feared I would never be happy with it, much as I enjoyed listening to it.
I have ended up with a 401. I am happy with it in every way. I suspect that if I heard it and the Xerxes side by side then the Xerxes would sound better in some ways but I'm not sure I can think of any.
In my opinion, my test records all sound at least as good on the 401 as on the Xerxes. The possible exception is Copland's Appelachian Spring which really did sound thrilling on the Xerxes. My test records were all middling in terms of recording quality and vinyl condition and include the Copland, a copy of Handel's Water Music and Emma Kirkby singing Purcell. I tested other records on everything I heard as well but those three were consistent to every test. I think if you search my posts you will see some of the comments I had on the Xerxes.
The Xerxes is a great TT and really kept me smiling time after time. But I couldn't get rid of my doubts. I left it for a week and went back to listen to it again. I left convinced that I was going to buy it but after sleeping on it a nagging doubt had crept back in to my thoughts. In particular, as I say, there were a couple of sections of one or two records that I knew could sound better. I'm sure other parts of the system had their effect as well but I listened to the Xerxes through much better equipment than what the Garrard is plugged in to.
That being said, this is the conclusion that worked for me. I really couldn't say that I think that the 401 is per se better than the Xerxes. But the 401 that I have is better for me than the Xerxes I was listening to previously.
Happy to discuss further though, as I say, I'm pretty new to all this and my advice should be taken heavily salted.