Hybrid tube / SS system


Hello...

Long time reader...that is, I see the emails roll in for the daily and weekly recp sessions..and they are very interesting. 

I have wanted to move back to tubes.   As a teenager in the early 70's I had a makeshift old workhorse 1959 General Electric G7700 Integrated amp that I loved...  In 1976, I managed to secure a Sansuai 1000a receiver...that I still wish I had. 

Back in October of '83 I secured Yamaha separates (as a 24 year old...I had to have them!) I was convinced that these separates were royalty. - C-70, M-70 and (recently re-coned) Cerwin Vega D-8's and a Grado Platinum 1 cartridge and a Dual 1219 Turntable that I secured. 

Then...last year I found another General Electric G7700 that I got back up and running...that I put into storage after a couple of weeks.

My point:  As a younger person, I had seen the light of tubes...and I want to move back... I want to see about building a hybrid system.  Should I bother buying a tube amp or a tube preamp...replacing one of the Yamaha separates? (I read that tube preamp is usually the way to go). Or is it a bad idea altogether?  I know there is  Impedance issues doing the hybrid route.   And, I am not sure of the "audio world" worthiness of the Yamaha units; that is, they work perfectly since a complete "go-through" (sans caps) was performed a couple years ago but I am not sure if they stand up to time in the audio-gear world, per se.  I do want a bit more warmth and color.  The Yamaha units seem rather bland and flat with their "Natural Sound".  Or am I crazy?  Or, are the Cerwin Vega D-8's an issue?

I know I am all over the map here...

Thoughts, comments, suggestions?  Anything would be be appreciated.

vinylspin
vinylspin
Upgrading speakers first will help you to better choose the right amplifier.
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Thank you... Yes, the speakers should be my first consideration.  I suspect that if I secure a really good, efficient set of speakers, then I will likely appreciate my Yamaha M-70 and C-70 significantly more....even with the marketing tool of "Natural Sound". Flat but true. Granted the CV's are very efficient...101 sensitivity, but they are like a muscle car...not much finesse with the power but they will do the job very effectively.  But, the subtle color added to the power... like say a Ferrari.  I have been eyeing a set of Klipsch RF 7 lll.  I have never heard them...I have heard they are magnificent...but, honestly, the cost is keeping me away.  These colorful and bold RF 7 lll's would help the "flat "Yamaha separates.  I am rambling here...

Thanks again to all.
I encourage you to consider a speaker upgrade. Then if staying with separates try a tube preamp with your Yamaha amp. 
Thanks to all. I appreciate the shared experience and expertise with the attention to detail. i will share the next steps in my audio journey.
Not only has equipment (and recordings) changed a lot over the past 30+ years, but your own tastes and hearing have probably changed a good bit over time as well (I know mine certainly have).  Not that there’s not some excellent gear from back then — there certainly is and some probably fully serviceable today — but this seems to me to be a great time for you to get out to some dealers and/or audio shows and hear what’s out there now.  FWIW, here’s an idea of a hybrid system that wouldn’t cost a ton but likely sound awesome:

Don Sachs tube pre: $2500 w/all options
Valvet E2 Class A amp: $2195 available here now
Spatial Audio M5 Sapphire: $2950 available here now

Best of luck in whatever way you eventually go. 
Tekton Impact Monitors would be a significant upgrade over the CV's! And quite affordable! Pair them with a Prima Luna integrated tube amp for a bit of audio heaven!
A good tube integrated like the Raven is the sweet spot and awfully hard to beat without spending a huge amount more. https://www.ravenaudio.com/product/osprey-mk3/ If you have the budget for it then https://www.ravenaudio.com/product/reflection-mk2/ Either one of these will be my next move up from the very fine Melody integrated I have enjoyed for about a dozen years now https://systems.audiogon.com/systems/8367 which if you want a great amp for less than a new Raven let me know I might just decide to move on it a little sooner than planned. 

The only other one I would consider is Prima Luna, but they are made in China, so good luck with that. Raven are made in Texas.
The Yamaha units seem rather bland and flat with their "Natural Sound". Or am I crazy? Or, are the Cerwin Vega D-8's an issue?
Your CV are great speakers for parties, if you looking for more warmth and refined sound, my suggestion is upgrade the speakers first.