System forclassical music

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audioeporium.com

How willing are they to deal with separates?  with tubes?  They might be better off with something like the NAD M10 or M33 (both of which have a streamer, DAC and room correction) and speakers they like.  There is a lot of classical music available streaming (Primephonic and Idagio are almost exclusively classical) so this would seem to work easily and well.  

treepmeyer,  do they currently have in-wall speakers?  or are looking to use only in-wall speakers?   A pair of Magnepan on walls may work for their main listening space. 

Devore Gibbon line (probably used due to budget).
Focused, accurate, produces a wide 3D soundstage with large-scale classical.

It is good to know that there are still a few people who listen to classical music. As a number of other contributors have already said, it would be a very good idea for your friends to visit a local hi-fi dealer and try a few different combinations before deciding. Also, I stongly recommend that they include an SACD player in their shopping list - Marantz make some wonderful SACD players, but a few other brands are also available. Many of the classical music labels (eg BIS, Chandos, Channel Classics, Pentatone) produce outstanding recordings on SACD and of course they cannot be copied so they must be played from the original disc. Having said that, I have found that ripping longer classical recordings (eg opera and long symphonies) often introduces unwanted clicks or gaps in the music so I find it simpler just to play all my music from the original CD.
When auditioning hifi I find it is useful to follow some sort of structure or methodology so I understand the choices I make and end up with a system that is suitable for playing the type of music that I like. These are the tests I use, but I am sure they will be able to think of some tests of their own:
1) Dynamic range. Classical music often has a wide dynamic range and many systems struggle with it. They should choose a piece of music that goes from very quiet to very loud and then back to quiet again. Do they lose detail in the loud passages? If so then it is not the right solution for them. For this test I often use Mahler's Symphony number 2 or Shostakovich's 8th symphony.
2) Piano. For some reason many systems find it difficult to produce the sound of a piano. Again this test will weed out any systems that are not upo to the job. Any piece of solo piano music will suffice
3) Human voice. Choose different types of voice - bass, counter tenor, soprano, choral and ensure that they all sound realistic. Many systems are unable to produce a warm and pleasing sound with the counter tenor and soprano voices for example.
4) Detail. Any recording on original instruments is good for this test. I find the Akademie für Alte Musik Berlin is a good choice but any recoirding on original instruments can be used. You should be able to hear all the instruments clearly and distinctly,
5) Woodwind. Again, the subtle differences between the different woodwind instruments can be hard to reproduce accurately. Listen especially for the oboe and the flute. You should be able to hear which instrument is playing and if you cannot then it would rule a system out for any discerning listener. The Brahms Serenades are a good choice for this test.
6) Your favourite piece of music. It might seem obvious but any music that is a particular favourite must sound perfect on the chosen system.
7) A poor recording. Poor recordings can sound terrible on very revealing systems. Of course we want the system to be revealing but we do want to hear the music and not just the defects.
I hope this helps.
Incidentally the composer in question is Charpentier (despite the fact that it is pronounced Charpontier).