If you want to warm up the sound and roll off the Highs then the X-pre will work for you.
The thing about the integrated that both the pre and amp sections a well matched in terms of quality. If you want to use the 370 as a interim power amp as part of a staggered upgrade than that is a good idea. think about something like the Rogue Audio 66 preamp, which is the lowest price high quality tube pre out there at $1199. Otherwise I think you are better of enjoying as it is an outstanding valuefor a high powered integrated. Think about using the cash to upgrade your cd player or speakers.
The thing about the integrated that both the pre and amp sections a well matched in terms of quality. If you want to use the 370 as a interim power amp as part of a staggered upgrade than that is a good idea. think about something like the Rogue Audio 66 preamp, which is the lowest price high quality tube pre out there at $1199. Otherwise I think you are better of enjoying as it is an outstanding valuefor a high powered integrated. Think about using the cash to upgrade your cd player or speakers.