The bottom table is simply a summary from the product page.
Thank you Rusty.
With that in mind would you please help me understand one choice in particular? I’m coming from a place of technical ignorance and am really trying to understand the technology and implications.
I haven’t found a reference that helps me help understand the significance in choosing an op amp over a Class A Transistor Module.
From the Sonic Characteristic section I found this statement: Practically all the amp products on the market use Op Amp for preamp stage. Only a few very high end products use discrete transistors design.
From the Evo STA product page I found these statements:
- The Evolution STA offers a breakthrough in distortion reduction (Only Distortion Cancellation) and rivals the Evolution One in sound quality.
- Preamp stage and Class D oscillation circuit utilizing high-end NJR MUSES8820 op-amp.
- Hybrid Class-D technology that retains the merits of both Class-A and Class-D amplification.
I hope you understand that someone like me who isn’t as well informed as some could read into these statements that the STA rivals the One but uses a preamp stage is that is somehow inferior to that used in the One.
Does the STA rival the One in sound quality by trading the Class A Transistor Module for Only Distortion Cancellation?
From the descriptions I’ve found, op amps sound like the Class A Transistor Module packaged into a single device. Is that how or why the STA is considered a hybrid?
Thank you. I appreciate your help and patience.
Allan
Edit to add: If accurate, a reread of the NZ dealer review you posted before helped to understand the why of preamp choice - an evolution of the ST10. Still very interested in trade offs in preamp choice. Thanks again.
https://totallywired.nz/nuprime-2/nuprime-evolution-sta/