Tweakers' Asylum

i dont know. maybe its not being overdriven by voltage

76.103.3.131

snkby

In Reply to: RE: How can you overload a passive pre? (NT) posted by Kal Rubinson on May 30, 2007 at 16:30:28

and its just an impedance mismatch ?

my bugle phono pre and any other cdp i try is just fine.

its just these 2 900series philips cdp that distort if i use the analog outputs.

what can i use as source signal to measure max output voltage at the analog outputs ?

maybe just play loud disc and let meter hold peak value ?

thanks kal.

ive posted about this before if it seems familiar.

Follow Ups:

RE: i dont know. maybe its not being overdriven by voltage - Kal Rubinson 06:17:35 05/31/07 (2)
I doubt if there's an impedance problem but, without knowing the output impedance of the players and how input impedance of your passive pre varies with volume setting, I cannot be sure. Is the problem at all volume levels? If so, it is probably something inherent in the players.
- its definitely in the players as - snkby 13:44:34 05/31/07 (1)
  both philips cdp can easily drive the amps to clipping while any other player does not.
  
  and yes there is distortion at all volume levels.
  
  my little portable philips cdp has a line-out port that doesnt cause distortion though.
  - Hah! - Kal Rubinson 14:12:23 05/31/07 (0)
    If it is distorting at all volume levels and the analog outputs of the players is not variable, then no attenuator will fix it. They are simply giving you distorted/clipped output. Have you tried them with another system?
    
    Kal

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