Home Vinyl Asylum

Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ.

Re: can someone explain the concept of PRaT and...

I know that Rega turntables for example are supposed to have PRaT but evey one I have ever seen measured runs a bit too fast. Do they do this to artificially give a sense of heightened pace? Makes one wonder... Also, a turntable that doesn't have good stability of speed, ie. is always changing speeds slightly, can blur the sound and make it lose intensity.

With speakers, I have found that a speaker seems slow when the bass is subjectively, not together, with the rest of the spectrum. This can be because of a boomy High Q design or a highly resonant cabinet.

With electronics it could possibly be phase shift, or distortion in the bass (a problem with some tube amps and probably why some tube amps sound "slow"). The older 1 bit dacs in cd players often made for a VERY boring sounding cd player (think Technics MASH or 1 bit players from Onkyo were dreadfully boring and lacking in PRat). I am not sure what the cause here would be, jitter perhaps?

Many SS amps sound "dead" dynamically, which I suspect is from excessive use of negative feedback, and this also makes for a non-PRaT boring sound.


This post is made possible by the generous support of people like you and our sponsors:
  Parts Connexion  


Follow Ups Full Thread
Follow Ups
  • Re: can someone explain the concept of PRaT and... - morricab 04:49:00 05/10/07 (0)


You can not post to an archived thread.