178b48c5   
   XPost: uk.rec.audio   
   From: E1ron@hotmail.com   
      
   On 05/09/2010 21:43, Andre Jute wrote:   
   > Time to return to tech-talk.   
   >   
   > In a modest-sized room (by horn standards anyway) I want to rig up a   
   > singleton of my modded semi-Fidelio bicor horns for Lowther PM6A. I   
   > thought I'd do the monoing in a specially made 1 metre cable between   
   > the CD player and the power amp.   
   >   
   > The QUAD CD expects to see at least 10K impedance on its outputs.   
   > Output of the CD player is 2Vrms and about 0.5Vrms of that is required   
   > to drive the amp to enough power to handle the horns, so high value   
   > resistors can be used in the monomaker if there is any advantage to be   
   > gained.   
   >   
   > However, the sound is NOT intended to be reprocessed as stereo   
   > downstream (home installation, not studio); if I want stereo again,   
   > i'll just plug in a stereo cable.   
   >   
   > The pot on the integrated amp is probably (the board won't be here   
   > until Tuesday and i can't read the spec on the piccie) 50K Alps but I   
   > can replace it with a DACT of which I have a good selection of values.   
   >   
   > So what value resistors would you use for monoing?   
   >   
   > How many? Only two, or three?   
      
   Is this a trick question? Surely the real McCoy would know the answer.   
   Whatever resistors are to hand in the junk box, or a couple of 12k and a   
   2k2 resistor.   
   But I would throw in an extra resistor and a capacitor to give some bass   
   boost.   
   The values would depend on the in-room LF response of the speakers.   
      
   --   
   Eiron.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)