Joule Electra preamps and amps. What is your impression?

I've owned two Joule preamps and Joule phono stages. I agree with the characterizations above. The preamps are rich tonally, and work great with a variety of amps both ss & tube. These days they are a nice value used. Rich Brkich at Signature Sound is great resource for everything Joule Electra (sales & service). He's worked w/Judd for decades.
The phono stages are more sensitive to RFI interference than many others I tried. Granted, I gave them a torture test, living about 1500ft from a radio tower, but after many calls with Judd and experiments with tinfoil, etc. we concluded that only turning my home into a Faraday cage would get it totally quiet. Then out the door it went. 
The amps are OTL and wonderful sounding with the right speakers, and only the right speakers. I don't buy the argument that Speltz autoformer makes any speaker compatible, etc. To me they degrade sound quality. The noise from variac and voltage fluctuations do make the amps a bit of a labor of love, but for the right mindset owner, really awesome. FWIW, I put the Atma-Sphere amps in the same conversations but with the benefits of Ralph & team. Cheers,
Spencer

Rich Brkich just listed an LA150 line stage for $1500, considering your comment, quite a deal for you @Inna.
When you get to the amp upgrade, perhaps  @atmasphere 's OTLs using the 6AS7 will be a better fit for you. M60s, MA2s are long-standing fixtures in more than one friend's system. I enjoyed my MA1s as well. All use the 6AS7 which is reliable and affordable.
Cheers,
Spencer

Well said @larryi  !!!

Perhaps @atmasphere would care to share a list of some of the other brands that are popular with his speakers. IMHE, they include:

Coincident
Silverline
Merlin
Fried
Harbeth

Most speakers rated at 8ohms nominal have a good chance at working well. For those that want to use 4ohm speakers etc., Speltz Zeroformers are a popular solution, but not my personal cup of tea. 

My older Sound Labs are very difficult to drive, but newer ones are easier, so I am not best to opine on that. Cheers,
Spencer