Disklavier

Hi. I tried to find the JEC model listed below, but had no luck on a number of electronics shops and online.  I also run Sonos with my Disklavier both for wirelessly controlling the DKC but also as a distributed music system. A preamp might be a good fix so please let me know more about the model you selected.  Thanks! 

--- In disklavier@yahoogroups.com, "gmtmt" <gmtmt@...> wrote:
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> I had the same problem with Sonos speakers system.  The answer a stereo line level booster.   I bought one at best buy  JEC Model TC780LCIt works great.  Plug the output from the DKC 850 into the box and take the output to the speakders. 
> 
> --- In disklavier@yahoogroups.com, "discodonal" <discodonal@> wrote:
> >
> > I want to use my surround sound speakers via my Onkyo Av Receiever so I took the audio output from the DKC and sent it to an input on the Onkyo but the volume is so low I have to max out the Onkyo to hear it. The signal strength is very weak. Am I doing something wrong ?
> >
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