Upgrade preamp?

Thank you jjss49.  The Conrad Johnson looks like an interesting option.  Funny you mention the Herron as I was looking at one yesterday.  I've never heard one and the lack of reviews makes me a tad nervous.  

@georghifi, i read that you want to have a minimum of a 10x different between your preamp output impedance and your amps input impedance.  My current Freya+ has a 600ohm impedance in bridged configuration.  The 7.5kohms of the Brystons exceed that but I'm sure it's far from optimal.  Would you recommend trying to at or under 100ohm for the preamp? 

@adg101, I completely agree.  I priced out the 20.7's had my current listening room would accommodate a speaker of that size  but I'm contemplating a move in the next six months and don't want to commit to a speaker of that size and investment until I know where I'm going to be long term.  In the meantime, I thought I could start upgrading the rest of the chain and when I do settle down I'll be able to get the most out of the upgraded speakers. 

Thank you Verdantaudio.  I'll give the AVM PA5.2 a close look.  Appreciate the information and will certainly reach out with any questions.

Thank you all.

Mike 

Cayin SC6 dual mono @ $1500, best bang for the $

Brother, if you've got that kind of budget(2 big Bryston amps and then up to 5K for a pre)  you should be going straight to a high end audio shop that carries the Maggies and amps/pre's  that complement them.  

The Prima Luna Evo 300 and 400 series preamps have I believe a output impedance of 256 ohm’s. They will work well with any power amp. Sound fantastic too...

@mvrooman1526 

good luck, and i am happy to help with ideas

i have a cj et5, it is a brilliant piece....  if you get one, let me know, i can walk you through some useful owner tips around tube longevity

herron's preamps are absolutely in the same class, as i understand it... i have never ever heard of a herron owner say anything but wonderful things about the sound and the man/company behind it - herron is a smaller shop, doesn't get the press and PR... but absolutely beyond reproach...