Al - they do, but carrier frequency is almost 10x higher and resolution is 16-bit. SACD pulse width modulates at 2.8MHz - said to be equivalent to 20-bit on non-oversampling system. My analog class D amp (Icepower 200ASC) runs at about 500kHz with unlimited resolution. There is no quantization noise since it is not a sampled system.
Class-D or switching amps, any opinions on??
Does anybody have experience on Class-d or switching amps vs either a/b or traditional amps?? I have heard people knock them for limited ability at the low frequencies. However, I listened to a Linn amp not long ago and could not hear it wanting for anything. I want to hear a Rotel switching amp to compare. Why buy a massive 90lb amp thats a space heater if you dont have to, right???
- ...
- 42 posts total
I have been enjoying the Red Dragon Leviathan mono blocks. They replaced Classe DR 8 monos, and Cary 300sei. I have used them with Tanoy Arden,Merlin TSM MMX, and Ref 3A Grand Veena. I have experienced all of the pros and none of the cons when people describe D amps. Very satisfied and trouble free. First amp I have ever left on 24/7. |
10-25-09: Magfan If you go here you'll know as much as I do - except that I have heard about this elsewhere (an online discussion at one of "the' various sites). I would like to know more... |
Sigh, one more time. I have used SS (mosfets) and "Class D" amps (Tripath and Hypex), Class D is better. I have used a tube pre with both technologies. I would rather have a tube pre with a SS amp than a SS pre with a Class D. My old ears (61) say CD to SS pre to SS power just doesn't deliver. If you want a warm, more natural, musical sound; you are going to have a tube in the equipment chain, at least a tube DAC. Really good tube power amps are Really Expensive. The damping, power, clarity and tonal balance of power switching amps is within financial reach. They will faithfully amplify what they are fed; quality of input=quality of output. I believe Class D or power switching or whatever you want to call it is a better amplifying technology than Mosfets or Jfets. Are there SS amps superior to Class D? Yes, but the cost difference is, at least, a factor of 10 ($400=$4000). This topic has been kicked around so many times, so I guess one more time can't hurt. Good listening for everyone. |
Tony:: Bought my first 'trinatron' 19" w/mechanical tuner for my parents when first available. before that, we had one of the miniature, 'belly top' b/w Sonys'. As for HDTV detail, coming thru small dish, quality depends on amount of compression. more=worse picture. In worst case on my 60" SXRD, the HD picture only looks marginally better than the sd on the next channel over. Sometimes, I'd prefer the picture from my OPPO '981 thru HDMI !! However, sports and live news always has a stunning picture. I think they use those shows as a 'hook'. One day maybe I'll be able to do the BR compar-o. |
- 42 posts total