An all Parasound system - Good idea?


My brother- in- law visited last weekend and heard my 2 channel system for the first time.  Slightly ocd, he spent much time online and emailed me last night to say he was going to put his own system together and was planning to buy all of his components from Parasound, in part because he thinks a single brand will optimze performance and compatability, and because he is enamored by the John Curl connection. To that end, he plans to buy  a JC2 Preamp, A21 Amp and JC3+ phono amp.

I have told him focus on  speakers first, then source components. That notwithstanding, is the "All Parasound " a good idea to avoid the possibility of components not playing nice together or should he not focus on brand loyalty and shop for "best in class" components instead?

sjtm
I have JC3+, JC2 and A21 in my setup. Recently I purchased another A21 and now I use both amps in bridge mode. 
I have JC1s (two) and the JC2 preamp. I would not recommend the JC3 phono as I prefer discrete Class A circuit topography for the phono pre-amp (as does John Curl, BTW). The JC3 uses IC op-amps not Class A discrete designs. I think you will find that JC has commented that the JC3 was a compromise he was not that happy about, but had to live with due to Parasound upper management insistence and the fact that low noise discrete JFETS were getting hard to find and expensive. I myself am using a modified Spectral DMC-10 phono stage from the mid-80's.

To counter some comments above, I find the JC-2 have very good imaging and three dimensionality. It is also very smooth and non-fatiguing. I have used it with both outputs from a Bryston BDP/BDA combo and the phono output from the Spectral DMC-10.  
I currently own the Halo integrated and love it! I always wondered what Halo separates would sound like. I say go for it. If money was no object those would be the components in my system. The A21 will provide enough current to drive any speaker. Properly matching it would be my last concern. In my case I would be more worried about the space. The Halo integrated blends seamlessly with my TV stand. A Halo separate component system would need its rack with a lot of room to breath.
markmendenhall,

I’m glad you like the JC2...like the saying goes, ’"one man’s poison is another man’s medicine." I have an all Jeff Rowland system and couldn’t be happier. Yes, a different price level, but the Jeff Rowland is significantly better and on a totally different level than Parasound.
BTW - FWIW I have a one brand system (sort of) - Marantz PM-11S3 integrated amp and SA-8004 SACD player.  Others who know far more than me praised this amp and its phono stage. Pairs beautifully with my Focal 836v speakers.  My TT is a Music Hall MMF-9.1.  Thought about the Marantz TT, but it  is actually a Clearaudio product rebranded (great TT - but the MMf-9.1 gets the job done quite nicely)..

Not to change the subject, but as I write this, I am listening to the SACD of Elton John's Tumbleweed Connection - amazing album! If you have not played it in a while or are not familiar with it, give it a spin - guaranteed to brighten your day. The magic of music is that I may keep aging but the best music manages to stay timeless.