Joule 150A MKII versus Atma-sphere Preamps

As I understand it, the basis for balanced designs comes from studio equipment. Unlike home use where 1-2 meters is typical for interconnect, studios often run 10-30 meters so noise rejection becomes critical. So balanced may measure lower noise, even in a home system, but is it audible? I wish someone would run a reliable test on this.

Another point, a few years ago I ask Jud about a balanced version of the Joule preamp. He said to make it truly balanced would require another gain stage and he did not believe that would be worthwhile (increased complexity in the circuit). He also mentioned the unlikelihood of noise with good quality interconnects of moderate length.

04-26-08: Pryso
So balanced may measure lower noise, even in a home system, but is it audible?

When I have experimented with gear that offered both balanced and single ended operation, I can say without hesitation that the balanced option was always audibly quieter.

I thought the goal of "balanced" cables was to keep the shield separate from the "-" wire. In many RCA's the shield is connected to the "-" so that the noise collected by the shield may become a part of the amplified signal. Doesn't a "balanced" cable drain the noise collected by the drain wire and connect it directly to chassis earth ground, bypassing the "-" wire, hence never giving it the opportunity to pollute the amplifed signal. Am I misunderstanding this?

My other issue beside design approach is whether or not the MP-3 is as inherently good a preamp as the Joule 150A MKII. I love the Joule after having experimented with CAT,Lamm, and Placette Active. So quiet or not, I just don't know if the MP-3 is as a good a preamp, but again, I guess I just won't know till I get one in my system.

The MP-3 will be different. I'll put money on it. It'll be more neutral and less romantic than the Joule.

Now, you may consider this as not being better than the Joule, and others would argue that the neutrality makes the MP-3 better. Who's to say what's better? It's a matter of preference.

Let me know if I'm right after you hear it.