Jadis preamplifiers configuration

Gentlemen - such a didactic issue. 

In Jadis's offer, the phono stage + line stage preamplification can be built in several ways.


1. The simplest and most common is the two-box JP80MC preamplifier - both phono stage and line stage channels placed in one box plus a separate power supply for all that stuff. 


2. The second way is the JP200MC four-box preamp. In this preamp we have a line stage and a phono stage integrated into one box, but for each channel there is a separate box that has its own power supply. 

So we have full separation of L + R channels, with separate power supplies, but the phono and line sections are integrated within the given enclosure. 
There are also fewer filtering capacitors than in the third option and two times more ECC83 lamps are needed, which must be perfectly matched in pairs. These dual triode tubes probably work only one half. 


3. The last way - probably the least common, but very interesting, is a separate stereo phonostage JPS3 with a separate power supply and a separate stereo line stage JPS2 with a separate power supply.

In this system, we do not separate L + R channels, we only separate the phono stage and the line stage and we give each of them a separate, dedicated power supply. 

An additional advantage of this combination of JPS2 + JPS3 circuit is an additional 3 signal filtering capacitors for each of the preamps that are not in JP200MC, due to the lack of space. 

As for the electric circuit, all devices uses almost the same schematics, the difference is only in how we divide the circuits into individual boxes. 

In JPS2 there is another a single ECC82 tube on the CD input for which you have to ask the manufacturer whether it must be there. 


So the question is: what will give a better effect: dividing the channels and giving them separate power supplies, or dividing the preamplifiers and giving them separate power supplies? 

I will also add that in the channel splitting variant, the final effect will be as good as it is possible to pair individual ECC83 tubes used in the left and right channel (there are 12 (!) In total). In the latter version, JPS2 + JPS3, both channels are supported by a double ECC83 triode (6 pieces), which in turn must have internally paired halves. 

What do you advise - option 2 or option 3 and why? Variant 1 I currently have :-)