Krell HTS 7.1 for 2 channel or a new or used 2 channel pre?


I have an opportunity to purchase a used Krell HTS 7.1 for 700.00 I have Krell amps Tyler Acoustic Decade 2 speakers. I am currently using a Yamaha 3030 as a pre and it sucks. I switched to the Yamaha for ease of use with hdmi and all but I find it severely lacking in the audio department. So this brings me to the question do I get the Krell or keep searching for a 2 channel pre? Budget is 1000

We listen to cd's and stream via Spotify. I would like to eventually get into lp's

thanks
jfondell
I got the HTS and all I can say is it's truly amazing! I have never heard these speakers sound so good I'm amazed! Everything works including the remote. I am streaming from a PS4 which I'm sure isn't the best source but it sounds wonderful 
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That's great!  uhmm, this is totally a shameless plug, but I have my old HTS 7.1 power supply board up for sale.  It's been re-capped and upgraded.  The larger caps gave me much stronger bass and smoother resolution over all.  I put it up for sale here on Audiogon (under my name), so the forum can't get mad at me. :)  Not trying to push to sell this, but it's there if you're interested.
Another thought.  If your using PS4 for transport and have a cheap toslink cable for digital, you could potentially significantly improve your audio by upgrading to a better toslink cable.  They aren't severely expensive.  An example would be a 3 foot Lifatec for $81 (or whatever length you need).  Alternatively, you could do a more expensive cable like the Wire World Super Nova, but I don't know that you would get any better than the Lifatec.
That board if nifty so you replace all of those caps? I have a monster toslink cable 10 years ago they were the top of the line ones, not sure if much has changed? I will say the speakers sound so amazing I don't have words to describe it. I've had these speakers since 2009 and I have never heard them sound the way they do now. I'll give some thought to your board once I replenish some funds