help........

This doesn't sound right - are you talking line or phono for this problem.
If phono you have a mismatch between cartridge/phono  

@mcreyn 
If the problem exists with his Oppo 203 then the solution is to go into the set up option on the Oppo and set a max volume. This will enable him to run his CJ at a higher volume.

@almarg 
Al - the max volume function limits the output volume - which means the preamp has to be turn up to achieve the same volume at the speakers.
You can also use the variable volume on the 203 to overcome the problem - the advantage of using the max volume functionality is that it prevents some idiot from winding the preamp up full volume and then pressing play - turning the speakers inside out.
If I recall correctly you can also set the volume on the 203 and then turn off the variable volume which means you cant increase the volume without going back into set up and turning the variable function back on.
 
In my view it is suboptimal to add another device and interconnects as is being suggested when it is not necessary to fix the problem .