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Nuforce STA200

I am curious about the Nuforce STA200 amplifier  If anyone has experience with the amp it would be appreciated if you would share your listening impressions, both good and bad.  Some of the descriptions I have read classify it as a class AB amp and others a class D amp.  I am not technical savvy about these things, can a single amplifier be both? 
Thanks
George
jetter
aberyclark
1,355 posts
 
The hiss with the Nuforce should be louder than the Sony due to higher than normal gain. Do you have a friend’s house you can take the amp to and try there? Also, light dimmers have caused noises with my systems in other homes. Even if the dimmer is not in same room. 
gawdbless's avatar
gawdbless
1,235 posts
 
I have my STA200 paired with a Parasound Zpre2 and both have been left on for about a year+ virtually without being switched off, if so, then only briefly turned off then turned straight back on.
Is it scare mongering, or should I be worried about the STA200 going pop? I find the sound quality excellent. I actually bought two, the other is still in its box unopened. For the money $499 they are really nice sounding power amps. Don't know or care about the power rating, they sure do go loud when required. These findings are to my ears. 
renisnceman
50 posts
 
Had my amp for about a year now, no issues, great sound.  Current speakers (diy) are 89 dB.  Looking at a new design where efficiency would be 84dB.  Be interested in hearing from anyone that’s paired this amp with lower efficiency speakers.
jetter OP
3,035 posts
 
You know, one person posted their amp had a problem, and that person never posted again when asked to.  Then an article came out that said the wattage at 8 and 4 ohms was the same and started some worry that this was a problem.  

I ran my amp for about 8 hours straight both days over the weekend.  My speakers are 85 db and nominal 6 ohms and the amp never got warm and has never been warm to the touch. At least with my amp there is no difference in temperature between on and off. 
aberyclark
1,355 posts
 
Yes, one person who has never had a real presence on AG. I'm not saying the person is a troll, however, one must look at what is right in front of them. Even if the amp did "pop" it would not be the first time someone got a defective (assuming the cause was internal to the unit) component. Even the big boys gets returns due to defective units. My STA200 runs quite cool, however my speakers are rated at 101db. In fcat, I have had my amp on for hours upon hours playing at decent levels, no issues. 
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