Nuprime st10 or nuforce sta200, or parasound a23

I own a Nuforce STA 200 and it is, imo, an amazing little amplifier, and at the $499 price, and very good purchase. I use high quality banana plugs. However, as I have stated in a few other threads, it has a very high gain of 34.5 db and has an input sensitivity of .45 volts. I needed to go passive as a preamp ( glad I did ), because with a few of my preamps, the gain was so high I was getting hum in my system. Granted, I use extremely efficient loudspeakers, and it was a problem with only these speakers. Other speakers were not an issue. However, the volume control on most preamps will hover at around 9-10 o’clock in most situations. I have the amp just over a year, and have sold many high end amplifiers in my collection during that time, because this amp bettered them in reproducing music. If 80 wpc is suffient for your speakers, I cannot recommend it high enough. The dozen or so Class D amps I have tried did nothing special for me, but again, this was through " my ears ", and I know it is a great technology. So, Enjoy ! MrD.

Hi mrdecibel, at this point I am nut sure if I will hold onto my new STA 200.  I have a bit of a grainy high end  that I did not from my modest tube amps.  I only have a limited number of hours on it but am not convinced it is a break in issue.

Based on the Goldmund circuit used originally in the JOB amplifiers, the STA200 has, besides what I have mentioned above, an extremely wide bandwidth. Put them all together, and you have an amp that will " amplify " everything, including distortions and noises from anywhere. I found that it needed about 200 playing hours to where things smoothed out and the melodic nature of the amp became coherent. Tubes would likely be rolled off in comparison, and / or with just a bit of added color and warmth. I am sure your preamp volume control is set lower with the Nuforce than with the tube amps. It's whatever you like...…..Enjoy ! MrD.