System that sounds so real it is easy to mistaken it is not live

Dear @mijostyn : " from a cost/performance ratio I will take the JC1+ any day. Is Meitner any better than John Curl? "

Well, Parasound builded at a specific market price and the build parts they used are good but not good enough. Example: Parasound used Nichicon elctrolytic filter caps instead say Vishay or Cornell Dubelier that are 50%+ higher in price but even with better quality performance levels. For the JC1+ price tag can’t be outperformed, agree with you. Btw, the 130/84 K monoblocks neither use Vishay/Cornell or even Kemet and looks more like Epcos/TDK or maybe Nichicon  ! ? ! ? ?.

Meitner or JC ? I think both designers are different more than better one over the other, however and maybe because I own the legendary JC design in my system and already listened the Parasound mated with Sound Labs and big Dynaudio I could incline for JC but with no specific technical foundation.

R.

In the DIY community, Nichicon electrolytics are very highly regarded. Not a compromise at all compared to Vishay or CD. I use them and if I thought there was a better brand for a particular application I’d use that brand over Nichicon. The cost differential among different brands of electrolytic caps is trivial, now that Black Gate and Cerafine are defunct.

@rauliruegas, I suppose that makes both of us (without technical foundation). I am moving my JC 1s to subwoofer duty and had a choice between the JC 1+ and the Atma-Sphere MA 2s. Both amps have a reputation for excellent performance on SL speakers. I opted for the MA 2s. They are class A all the way and have a very fast slew rate. Their output impedance is on the high side but I am not using them to make low bass so, that is not important. I also like hand made in America. Atma-Sphere does a beautiful job wiring it's amplifiers.

Their output impedance is on the high side but I am not using them to make low bass so, that is not important.

@mijostyn 

The Sound Lab has its highest impedances in the bass region. That is why solid state amps struggle to drive them- they can't make the power. For the MA-2 though its a walk in the park- they play bass very well on that speaker!

Dear @mijostyn  : I think you builded your subwoofers that are digital controled in its parameters and I whish to know which is its THD at 120db SPL at 16hz-20hz.

In my Velodyne's ( sealed design ) its woofers are mated with a self powered amplifier that MEETS all the woffer characteristics along that the woofer is under self " inspection " around 16k times at each second and all those makes that its THD at almost full power been as low as 0.5%.

If you have not " something " that be checking in real time the subs THD then the JC 1+ is not the " best " option because that Parasound was not designed for subwoofers as your desing.

@atmasphere  the JC 1+ puts around 300 watts at 16 ohms and can handle even higher  impedance with absolute aplomb.

R.