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In the Forum: Analog Playback
In the Thread: The Expressive Technologies SU-1
Post Subject: There are no absolute loading valuesPosted by Romy the Cat on: 7/24/2009
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Manufacturers do not recommend any specific loading, and it they do then they shell not do it. They recommend a region where most probable final loading value might be. In case a transform is use it make not difference; they just transfer impedance in reversed 2 power of their gain. If your Lyra gives you very firm specific resistor value to load then first you shell not treat this resistor value as some kind of absolute reference and second you need to reconcile this value if you use a step up. Sure if your cartridge has suggested to be loaded with 10R but you get proper result with 10K then it might be a good reason to review what you do but if you found that with your setup 40R would work for you better then 10R then I would consider it appropriate. I do think that with transformers in use the run off of lording might be even further as different transformers have different internal impedance of primary but I do not see that it has any practical significance unless you use multiple transformers and try to advocate your found loading values and some kind of absolutely and universally right values. The right values of loading would be derivatives of many things and it is fine that in different installations they might be wary within a sensible limits.
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